From 69ad0f23207b89c04872cac32aa77ea6a56d3286 Mon Sep 17 00:00:00 2001 From: robiscool Date: Wed, 28 Oct 2009 00:13:49 -0700 Subject: snort-dev, see if snort.xml creates directories --- config/snort-dev/snort.inc | 1620 +++++++++++++++++++++ config/snort-dev/snort.xml | 102 ++ config/snort-dev/snort_base_files.inc | 2025 ++++++++++++++++++++++++++ config/snort-dev/snort_base_files.php | 2025 -------------------------- config/snort-dev/snort_interfaces.php | 158 +- config/snort-dev/snort_interfaces_edit.php | 466 +++--- config/snort-dev/snort_interfaces_global.php | 279 ++++ pkg_config.7.xml | 19 + 8 files changed, 4378 insertions(+), 2316 deletions(-) create mode 100644 config/snort-dev/snort.inc create mode 100644 config/snort-dev/snort.xml create mode 100644 config/snort-dev/snort_base_files.inc delete mode 100644 config/snort-dev/snort_base_files.php create mode 100644 config/snort-dev/snort_interfaces_global.php diff --git a/config/snort-dev/snort.inc b/config/snort-dev/snort.inc new file mode 100644 index 00000000..575192b9 --- /dev/null +++ b/config/snort-dev/snort.inc @@ -0,0 +1,1620 @@ + advanced features */ + $bpfbufsize = $config['installedpackages']['snortadvanced']['config'][0]['bpfbufsize']; + $bpfmaxbufsize = $config['installedpackages']['snortadvanced']['config'][0]['bpfmaxbufsize']; + $bpfmaxinsns = $config['installedpackages']['snortadvanced']['config'][0]['bpfmaxinsns']; + + /* set the snort performance model */ + if($config['installedpackages']['snort']['config'][0]['performance']) + $snort_performance = $config['installedpackages']['snort']['config'][0]['performance']; + else + $snort_performance = "ac-bnfa"; + + conf_mount_rw(); + /* create a few directories and ensure the sample files are in place */ + exec("/bin/mkdir -p /usr/local/etc/snort"); + exec("/bin/mkdir -p /var/log/snort"); + exec("/bin/mkdir -p /usr/local/etc/snort/rules"); + exec("/bin/rm /usr/local/etc/snort/snort.conf-sample"); + exec("/bin/rm /usr/local/etc/snort/threshold.conf-sample"); + exec("/bin/rm /usr/local/etc/snort/sid-msg.map-sample"); + exec("/bin/rm /usr/local/etc/snort/unicode.map-sample"); + exec("/bin/rm /usr/local/etc/snort/classification.config-sample"); + exec("/bin/rm /usr/local/etc/snort/generators-sample"); + exec("/bin/rm /usr/local/etc/snort/reference.config-sample"); + exec("/bin/rm /usr/local/etc/snort/gen-msg.map-sample"); + exec("/bin/rm /usr/local/etc/snort/sid"); + exec("/bin/rm -f /usr/local/etc/rc.d/snort"); + + $first = 0; + $snortInterfaces = array(); /* -gtm */ + + $if_list = $config['installedpackages']['snort']['config'][0]['iface_array']; + $if_array = split(',', $if_list); + //print_r($if_array); + if($if_array) { + foreach($if_array as $iface) { + $if = convert_friendly_interface_to_real_interface_name($iface); + + if($config['interfaces'][$iface]['ipaddr'] == "pppoe") { + $if = "ng0"; + } + + /* build a list of user specified interfaces -gtm */ + if($if){ + array_push($snortInterfaces, $if); + $first = 1; + } + } + + if (count($snortInterfaces) < 1) { + log_error("Snort will not start. You must select an interface for it to listen on."); + return; + } + } + //print_r($snortInterfaces); + + /* create log directory */ + $start = "/bin/mkdir -p /var/log/snort\n"; + + /* snort advanced features - bpf tuning */ + if($bpfbufsize) + $start .= "sysctl net.bpf.bufsize={$bpfbufsize}\n"; + if($bpfmaxbufsize) + $start .= "sysctl net.bpf.maxbufsize={$bpfmaxbufsize}\n"; + if($bpfmaxinsns) + $start .= "sysctl net.bpf.maxinsns={$bpfmaxinsns}\n"; + + /* go ahead and issue bpf changes */ + if($bpfbufsize) + mwexec_bg("sysctl net.bpf.bufsize={$bpfbufsize}"); + if($bpfmaxbufsize) + mwexec_bg("sysctl net.bpf.maxbufsize={$bpfmaxbufsize}"); + if($bpfmaxinsns) + mwexec_bg("sysctl net.bpf.maxinsns={$bpfmaxinsns}"); + + /* always stop barnyard2 before starting snort -gtm */ + $start .= "/usr/bin/killall barnyard2\n"; + + /* start a snort process for each interface -gtm */ + /* Note the sleep delay. Seems to help getting mult interfaces to start -gtm */ + /* snort start options are; config file, log file, demon, interface, packet flow, alert type, quiet */ + /* TODO; get snort to start under nologin shell */ + foreach($snortInterfaces as $snortIf) + { + $start .= "sleep 4\n"; + $start .= "snort -c /usr/local/etc/snort/snort.conf -l /var/log/snort -D -i {$snortIf} -q\n"; + /* define snortbarnyardlog_chk */ + $snortbarnyardlog_info_chk = $config['installedpackages']['snortadvanced']['config'][0]['snortbarnyardlog']; + if ($snortbarnyardlog_info_chk == on) + $start .= "\nsleep 4;barnyard2 -c /usr/local/etc/barnyard2.conf -d /var/log/snort -f snort.u2 -w /usr/local/etc/snort/barnyard2.waldo -D -q\n"; + } + $check_if_snort_runs = "\n\tif [ \"`ls -A /usr/local/etc/snort/rules`\" ] ; then\n\techo \"rules exist\"\n\telse\n\techo \"rules DONT exist\"\n\texit 2\n\tfi \n\n\tif [ \"`pgrep -x snort`\" = \"\" ] ; then\n\t/bin/rm /tmp/snort.sh.pid\n\tfi \n\n\tif [ \"`pgrep -x snort`\" != \"\" ] ; then\n\tlogger -p daemon.info -i -t SnortStartup \"Snort already running...\"\n\t/usr/local/bin/php -f /usr/local/pkg/pf/snort_dynamic_ip_reload.php\n\texit 1\n\tfi\n\n"; + $if_snort_pid = "\nif ls /tmp/snort.sh.pid > /dev/null\nthen\n echo \"snort.sh is running\"\n exit 0\nelse\n echo \"snort.sh is not running\"\nfi\n"; + $echo_snort_sh_pid = "\necho \"snort.sh run\" > /tmp/snort.sh.pid\n"; + $echo_snort_sh_startup_log = "\necho \"snort.sh run\" >> /tmp/snort.sh_startup.log\n"; + $del_old_pids = "\nrm -f /var/run/snort_*\n"; + $sample_before = "BEFORE_MEM=`top | grep Wired | awk '{print \$12}'`\n"; + $sample_after = "\n\tAFTER_MEM=`top | grep Wired | awk '{print \$12}'`\n"; + if ($snort_performance == "ac-bnfa") + $sleep_before_final = "\necho \"Sleeping before final memory sampling...\"\nWAITSECURE=60\n"; + else + $sleep_before_final = "\necho \"Sleeping before final memory sampling...\"\nWAITSECURE=300\n"; + $sleep_before_final .= "while [ \"\$MYSNORTLOG\" = \"\" -a \$WAITSECURE -gt 0 ] ; do\n\tsleep 2\n\tMYSNORTLOG=`/usr/sbin/clog /var/log/system.log | grep snort | tail | grep 'Snort initialization completed successfully'`\n\tWAITSECURE=`expr \$WAITSECURE - 1`\ndone\n"; + $total_used_after = "TOTAL_USAGE=`top | grep snort | grep -v grep | awk '{ print \$6 }'`\n"; + $echo_usage .= $sample_after . "\t" . $total_used_after . "\techo \"Ram free BEFORE starting Snort: \$BEFORE_MEM -- Ram free AFTER starting Snort: \$AFTER_MEM -- Mode " . $snort_performance . " -- Snort memory usage: \$TOTAL_USAGE\" | logger -p daemon.info -i -t SnortStartup\n\n"; + + /* write out rc.d start/stop file */ + write_rcfile(array( + "file" => "snort.sh", + "start" => "{$check_if_snort_runs}{$if_snort_pid}{$echo_snort_sh_pid}{$echo_snort_sh_startup_log}{$del_old_pids}{$sample_before}{$start}{$sleep_before_final}{$echo_usage}", + "stop" => "/usr/bin/killall snort; killall barnyard2" + ) + ); + + /* create snort configuration file */ + create_snort_conf(); + +/* create barnyard2 configuration file */ +$snortbarnyardlog_info_chk = $config['installedpackages']['snortadvanced']['config'][0]['snortbarnyardlog']; +if ($snortbarnyardlog_info_chk == on) + create_barnyard2_conf(); + + /* snort will not start on install untill setting are set */ +if ($config['installedpackages']['snort']['config'][0]['autorulesupdate7'] != "") { + /* start snort service */ + conf_mount_ro(); + start_service("snort"); + } +} + +/* open barnyard2.conf for writing */ +function create_barnyard2_conf() { + global $bconfig, $bg; + /* write out barnyard2_conf */ + $barnyard2_conf_text = generate_barnyard2_conf(); + $bconf = fopen("/usr/local/etc/barnyard2.conf", "w"); + if(!$bconf) { + log_error("Could not open /usr/local/etc/barnyard2.conf for writing."); + exit; + } + fwrite($bconf, $barnyard2_conf_text); + fclose($bconf); +} +/* open barnyard2.conf for writing" */ +function generate_barnyard2_conf() { + + global $config, $g; + conf_mount_rw(); + +/* define snortbarnyardlog */ +/* TODO add support for the other 5 output plugins */ + +$snortbarnyardlog_database_info_chk = $config['installedpackages']['snortadvanced']['config'][0]['snortbarnyardlog_database']; +$snortbarnyardlog_hostname_info_chk = $config['installedpackages']['snortadvanced']['config'][0]['snortbarnyardlog_hostname']; +$snortbarnyardlog_interface_info_chk = $config['installedpackages']['snortadvanced']['config'][0]['snortbarnyardlog_interface']; + +$barnyard2_conf_text = << 0) { + unset($config['cron']['item'][$x]); + write_config(); + } + configure_cron(); + } + } + + function snort_rules_up_deinstall_cron($should_install) { + global $config, $g; + + $is_installed = false; + + if(!$config['cron']['item']) + return; + + $x=0; + foreach($config['cron']['item'] as $item) { + if (strstr($item['command'], "snort_check_for_rule_updates.php")) { + $is_installed = true; + break; + } + $x++; + } + if($is_installed == true) { + if($x > 0) { + unset($config['cron']['item'][$x]); + write_config(); + } + configure_cron(); + } + } + +snort_rm_blocked_deinstall_cron(""); +snort_rules_up_deinstall_cron(""); + + + /* Unset snort registers in conf.xml IMPORTANT snort will not start with out this */ + /* Keep this as a last step */ + unset($config['installedpackages']['snort']['config'][0]['autorulesupdate7']); + unset($config['installedpackages']['snort']['config'][0]['rm_blocked']); + write_config(); + +} + +function generate_snort_conf() { + + global $config, $g; + conf_mount_rw(); + /* obtain external interface */ + /* XXX: make multi wan friendly */ + $snort_ext_int = $config['installedpackages']['snort']['config'][0]['iface_array'][0]; + + $snort_config_pass_thru = $config['installedpackages']['snortadvanced']['config'][0]['configpassthru']; + +/* define snortalertlogtype */ +$snortalertlogtype = $config['installedpackages']['snortadvanced']['config'][0]['snortalertlogtype']; +if ($snortalertlogtype == fast) + $snortalertlogtype_type = "output alert_fast: alert"; +else + $snortalertlogtype_type = "output alert_full: alert"; + +/* define alertsystemlog */ +$alertsystemlog_info_chk = $config['installedpackages']['snortadvanced']['config'][0]['alertsystemlog']; +if ($alertsystemlog_info_chk == on) + $alertsystemlog_type = "output alert_syslog: log_alert"; + +/* define tcpdumplog */ +$tcpdumplog_info_chk = $config['installedpackages']['snortadvanced']['config'][0]['tcpdumplog']; +if ($tcpdumplog_info_chk == on) + $tcpdumplog_type = "output log_tcpdump: snorttcpd.log"; + +/* define snortbarnyardlog_chk */ +$snortbarnyardlog_info_chk = $config['installedpackages']['snortadvanced']['config'][0]['snortbarnyardlog']; +if ($snortbarnyardlog_info_chk == on) + $snortbarnyardlog_type = "barnyard2 -c /usr/local/etc/barnyard2.conf -d /var/log/snort -f snort.u2 -w /usr/local/etc/snort/barnyard2.waldo -D"; + +/* define snortunifiedlog */ +$snortunifiedlog_info_chk = $config['installedpackages']['snortadvanced']['config'][0]['snortunifiedlog']; +if ($snortunifiedlog_info_chk == on) + $snortunifiedlog_type = "output unified2: filename snort.u2, limit 128"; + +/* define spoink */ +$spoink_info_chk = $config['installedpackages']['snort']['config'][0]['blockoffenders7']; +if ($spoink_info_chk == on) + $spoink_type = "output alert_pf: /var/db/whitelist,snort2c"; + + /* define servers and ports snortdefservers */ + +/* def DNS_SERVSERS */ +$def_dns_servers_info_chk = $config['installedpackages']['snortdefservers']['config'][0]['def_dns_servers']; +if ($def_dns_servers_info_chk == "") + $def_dns_servers_type = "\$HOME_NET"; +else + $def_dns_servers_type = "$def_dns_servers_info_chk"; + +/* def DNS_PORTS */ +$def_dns_ports_info_chk = $config['installedpackages']['snortdefservers']['config'][0]['def_dns_ports']; +if ($def_dns_ports_info_chk == "") + $def_dns_ports_type = "53"; +else + $def_dns_ports_type = "$def_dns_ports_info_chk"; + +/* def SMTP_SERVSERS */ +$def_smtp_servers_info_chk = $config['installedpackages']['snortdefservers']['config'][0]['def_smtp_servers']; +if ($def_smtp_servers_info_chk == "") + $def_smtp_servers_type = "\$HOME_NET"; +else + $def_smtp_servers_type = "$def_smtp_servers_info_chk"; + +/* def SMTP_PORTS */ +$def_smtp_ports_info_chk = $config['installedpackages']['snortdefservers']['config'][0]['def_smtp_ports']; +if ($def_smtp_ports_info_chk == "") + $def_smtp_ports_type = "25"; +else + $def_smtp_ports_type = "$def_smtp_ports_info_chk"; + +/* def MAIL_PORTS */ +$def_mail_ports_info_chk = $config['installedpackages']['snortdefservers']['config'][0]['def_mail_ports']; +if ($def_mail_ports_info_chk == "") + $def_mail_ports_type = "25,143,465,691"; +else + $def_mail_ports_type = "$def_mail_ports_info_chk"; + +/* def HTTP_SERVSERS */ +$def_http_servers_info_chk = $config['installedpackages']['snortdefservers']['config'][0]['def_http_servers']; +if ($def_http_servers_info_chk == "") + $def_http_servers_type = "\$HOME_NET"; +else + $def_http_servers_type = "$def_http_servers_info_chk"; + +/* def WWW_SERVSERS */ +$def_www_servers_info_chk = $config['installedpackages']['snortdefservers']['config'][0]['def_www_servers']; +if ($def_www_servers_info_chk == "") + $def_www_servers_type = "\$HOME_NET"; +else + $def_www_servers_type = "$def_www_servers_info_chk"; + +/* def HTTP_PORTS */ +$def_http_ports_info_chk = $config['installedpackages']['snortdefservers']['config'][0]['def_http_ports']; +if ($def_http_ports_info_chk == "") + $def_http_ports_type = "80"; +else + $def_http_ports_type = "$def_http_ports_info_chk"; + +/* def SQL_SERVSERS */ +$def_sql_servers_info_chk = $config['installedpackages']['snortdefservers']['config'][0]['def_sql_servers']; +if ($def_sql_servers_info_chk == "") + $def_sql_servers_type = "\$HOME_NET"; +else + $def_sql_servers_type = "$def_sql_servers_info_chk"; + +/* def ORACLE_PORTS */ +$def_oracle_ports_info_chk = $config['installedpackages']['snortdefservers']['config'][0]['def_oracle_ports']; +if ($def_oracle_ports_info_chk == "") + $def_oracle_ports_type = "1521"; +else + $def_oracle_ports_type = "$def_oracle_ports_info_chk"; + +/* def MSSQL_PORTS */ +$def_mssql_ports_info_chk = $config['installedpackages']['snortdefservers']['config'][0]['def_mssql_ports']; +if ($def_mssql_ports_info_chk == "") + $def_mssql_ports_type = "1433"; +else + $def_mssql_ports_type = "$def_mssql_ports_info_chk"; + +/* def TELNET_SERVSERS */ +$def_telnet_servers_info_chk = $config['installedpackages']['snortdefservers']['config'][0]['def_telnet_servers']; +if ($def_telnet_servers_info_chk == "") + $def_telnet_servers_type = "\$HOME_NET"; +else + $def_telnet_servers_type = "$def_telnet_servers_info_chk"; + +/* def TELNET_PORTS */ +$def_telnet_ports_info_chk = $config['installedpackages']['snortdefservers']['config'][0]['def_telnet_ports']; +if ($def_telnet_ports_info_chk == "") + $def_telnet_ports_type = "23"; +else + $def_telnet_ports_type = "$def_telnet_ports_info_chk"; + +/* def SNMP_SERVSERS */ +$def_snmp_servers_info_chk = $config['installedpackages']['snortdefservers']['config'][0]['def_snmp_servers']; +if ($def_snmp_servers_info_chk == "") + $def_snmp_servers_type = "\$HOME_NET"; +else + $def_snmp_servers_type = "$def_snmp_servers_info_chk"; + +/* def SNMP_PORTS */ +$def_snmp_ports_info_chk = $config['installedpackages']['snortdefservers']['config'][0]['def_snmp_ports']; +if ($def_snmp_ports_info_chk == "") + $def_snmp_ports_type = "161"; +else + $def_snmp_ports_type = "$def_snmp_ports_info_chk"; + +/* def FTP_SERVSERS */ +$def_ftp_servers_info_chk = $config['installedpackages']['snortdefservers']['config'][0]['def_ftp_servers']; +if ($def_ftp_servers_info_chk == "") + $def_ftp_servers_type = "\$HOME_NET"; +else + $def_ftp_servers_type = "$def_ftp_servers_info_chk"; + +/* def FTP_PORTS */ +$def_ftp_ports_info_chk = $config['installedpackages']['snortdefservers']['config'][0]['def_ftp_ports']; +if ($def_ftp_ports_info_chk == "") + $def_ftp_ports_type = "21"; +else + $def_ftp_ports_type = "$def_ftp_ports_info_chk"; + +/* def SSH_SERVSERS */ +$def_ssh_servers_info_chk = $config['installedpackages']['snortdefservers']['config'][0]['def_ssh_servers']; +if ($def_ssh_servers_info_chk == "") + $def_ssh_servers_type = "\$HOME_NET"; +else + $def_ssh_servers_type = "$def_ssh_servers_info_chk"; + +/* if user has defined a custom ssh port, use it */ +if($config['system']['ssh']['port']) + $ssh_port = $config['system']['ssh']['port']; +else + $ssh_port = "22"; + +/* def SSH_PORTS */ +$def_ssh_ports_info_chk = $config['installedpackages']['snortdefservers']['config'][0]['def_ssh_ports']; +if ($def_ssh_ports_info_chk == "") + $def_ssh_ports_type = "{$ssh_port}"; +else + $def_ssh_ports_type = "$def_ssh_ports_info_chk"; + +/* def POP_SERVSERS */ +$def_pop_servers_info_chk = $config['installedpackages']['snortdefservers']['config'][0]['def_pop_servers']; +if ($def_pop_servers_info_chk == "") + $def_pop_servers_type = "\$HOME_NET"; +else + $def_pop_servers_type = "$def_pop_servers_info_chk"; + +/* def POP2_PORTS */ +$def_pop2_ports_info_chk = $config['installedpackages']['snortdefservers']['config'][0]['def_pop2_ports']; +if ($def_pop2_ports_info_chk == "") + $def_pop2_ports_type = "109"; +else + $def_pop2_ports_type = "$def_pop2_ports_info_chk"; + +/* def POP3_PORTS */ +$def_pop3_ports_info_chk = $config['installedpackages']['snortdefservers']['config'][0]['def_pop3_ports']; +if ($def_pop3_ports_info_chk == "") + $def_pop3_ports_type = "110"; +else + $def_pop3_ports_type = "$def_pop3_ports_info_chk"; + +/* def IMAP_SERVSERS */ +$def_imap_servers_info_chk = $config['installedpackages']['snortdefservers']['config'][0]['def_imap_servers']; +if ($def_imap_servers_info_chk == "") + $def_imap_servers_type = "\$HOME_NET"; +else + $def_imap_servers_type = "$def_imap_servers_info_chk"; + +/* def IMAP_PORTS */ +$def_imap_ports_info_chk = $config['installedpackages']['snortdefservers']['config'][0]['def_imap_ports']; +if ($def_imap_ports_info_chk == "") + $def_imap_ports_type = "143"; +else + $def_imap_ports_type = "$def_imap_ports_info_chk"; + +/* def SIP_PROXY_IP */ +$def_sip_proxy_ip_info_chk = $config['installedpackages']['snortdefservers']['config'][0]['def_sip_proxy_ip']; +if ($def_sip_proxy_ip_info_chk == "") + $def_sip_proxy_ip_type = "\$HOME_NET"; +else + $def_sip_proxy_ip_type = "$def_sip_proxy_ip_info_chk"; + +/* def SIP_PROXY_PORTS */ +$def_sip_proxy_ports_info_chk = $config['installedpackages']['snortdefservers']['config'][0]['def_sip_proxy_ports']; +if ($def_sip_proxy_ports_info_chk == "") + $def_sip_proxy_ports_type = "5060:5090,16384:32768"; +else + $def_sip_proxy_ports_type = "$def_sip_proxy_ports_info_chk"; + +/* def AUTH_PORTS */ +$def_auth_ports_info_chk = $config['installedpackages']['snortdefservers']['config'][0]['def_auth_ports']; +if ($def_auth_ports_info_chk == "") + $def_auth_ports_type = "113"; +else + $def_auth_ports_type = "$def_auth_ports_info_chk"; + +/* def FINGER_PORTS */ +$def_finger_ports_info_chk = $config['installedpackages']['snortdefservers']['config'][0]['def_finger_ports']; +if ($def_finger_ports_info_chk == "") + $def_finger_ports_type = "79"; +else + $def_finger_ports_type = "$def_finger_ports_info_chk"; + +/* def IRC_PORTS */ +$def_irc_ports_info_chk = $config['installedpackages']['snortdefservers']['config'][0]['def_irc_ports']; +if ($def_irc_ports_info_chk == "") + $def_irc_ports_type = "6665,6666,6667,6668,6669,7000"; +else + $def_irc_ports_type = "$def_irc_ports_info_chk"; + +/* def NNTP_PORTS */ +$def_nntp_ports_info_chk = $config['installedpackages']['snortdefservers']['config'][0]['def_nntp_ports']; +if ($def_nntp_ports_info_chk == "") + $def_nntp_ports_type = "119"; +else + $def_nntp_ports_type = "$def_nntp_ports_info_chk"; + +/* def RLOGIN_PORTS */ +$def_rlogin_ports_info_chk = $config['installedpackages']['snortdefservers']['config'][0]['def_rlogin_ports']; +if ($def_rlogin_ports_info_chk == "") + $def_rlogin_ports_type = "513"; +else + $def_rlogin_ports_type = "$def_rlogin_ports_info_chk"; + +/* def RSH_PORTS */ +$def_rsh_ports_info_chk = $config['installedpackages']['snortdefservers']['config'][0]['def_rsh_ports']; +if ($def_rsh_ports_info_chk == "") + $def_rsh_ports_type = "514"; +else + $def_rsh_ports_type = "$def_rsh_ports_info_chk"; + +/* def SSL_PORTS */ +$def_ssl_ports_info_chk = $config['installedpackages']['snortdefservers']['config'][0]['def_ssl_ports']; +if ($def_ssl_ports_info_chk == "") + $def_ssl_ports_type = "25,443,465,636,993,995"; +else + $def_ssl_ports_type = "$def_ssl_ports_info_chk"; + + /* add auto update scripts to /etc/crontab */ +// $text_ww = "*/60\t* \t 1\t *\t *\t root\t /usr/bin/nice -n20 /usr/local/pkg/snort_check_for_rule_updates.php"; +// $filenamea = "/etc/crontab"; +// remove_text_from_file($filenamea, $text_ww); +// add_text_to_file($filenamea, $text_ww); +// exec("killall -HUP cron"); */ + + /* should we install a automatic update crontab entry? */ + $automaticrulesupdate = $config['installedpackages']['snort']['config'][0]['automaticrulesupdate']; + + /* if user is on pppoe, we really want to use ng0 interface */ + if($config['interfaces'][$snort_ext_int]['ipaddr'] == "pppoe") + $snort_ext_int = "ng0"; + + /* set the snort performance model */ + if($config['installedpackages']['snort']['config'][0]['performance']) + $snort_performance = $config['installedpackages']['snort']['config'][0]['performance']; + else + $snort_performance = "ac-bnfa"; + + /* set the snort block hosts time IMPORTANT snort has trouble installing if snort_rm_blocked_info_ck != "" */ + $snort_rm_blocked_info_ck = $config['installedpackages']['snort']['config'][0]['rm_blocked']; + if ($snort_rm_blocked_info_ck == "never_b") + $snort_rm_blocked_false = ""; + else + $snort_rm_blocked_false = "true"; + +if ($snort_rm_blocked_info_ck != "") { +function snort_rm_blocked_install_cron($should_install) { + global $config, $g; + + if ($g['booting']==true) + return; + + $is_installed = false; + + if(!$config['cron']['item']) + return; + + $x=0; + foreach($config['cron']['item'] as $item) { + if (strstr($item['command'], "snort2c")) { + $is_installed = true; + break; + } + $x++; + } + $snort_rm_blocked_info_ck = $config['installedpackages']['snort']['config'][0]['rm_blocked']; + if ($snort_rm_blocked_info_ck == "1h_b") { + $snort_rm_blocked_min = "*/5"; + $snort_rm_blocked_hr = "*"; + $snort_rm_blocked_mday = "*"; + $snort_rm_blocked_month = "*"; + $snort_rm_blocked_wday = "*"; + $snort_rm_blocked_expire = "3600"; + } + if ($snort_rm_blocked_info_ck == "3h_b") { + $snort_rm_blocked_min = "*/15"; + $snort_rm_blocked_hr = "*"; + $snort_rm_blocked_mday = "*"; + $snort_rm_blocked_month = "*"; + $snort_rm_blocked_wday = "*"; + $snort_rm_blocked_expire = "10800"; + } + if ($snort_rm_blocked_info_ck == "6h_b") { + $snort_rm_blocked_min = "*/30"; + $snort_rm_blocked_hr = "*"; + $snort_rm_blocked_mday = "*"; + $snort_rm_blocked_month = "*"; + $snort_rm_blocked_wday = "*"; + $snort_rm_blocked_expire = "21600"; + } + if ($snort_rm_blocked_info_ck == "12h_b") { + $snort_rm_blocked_min = "2"; + $snort_rm_blocked_hr = "*/1"; + $snort_rm_blocked_mday = "*"; + $snort_rm_blocked_month = "*"; + $snort_rm_blocked_wday = "*"; + $snort_rm_blocked_expire = "43200"; + } + if ($snort_rm_blocked_info_ck == "1d_b") { + $snort_rm_blocked_min = "2"; + $snort_rm_blocked_hr = "*/2"; + $snort_rm_blocked_mday = "*"; + $snort_rm_blocked_month = "*"; + $snort_rm_blocked_wday = "*"; + $snort_rm_blocked_expire = "86400"; + } + if ($snort_rm_blocked_info_ck == "4d_b") { + $snort_rm_blocked_min = "2"; + $snort_rm_blocked_hr = "*/8"; + $snort_rm_blocked_mday = "*"; + $snort_rm_blocked_month = "*"; + $snort_rm_blocked_wday = "*"; + $snort_rm_blocked_expire = "345600"; + } + if ($snort_rm_blocked_info_ck == "7d_b") { + $snort_rm_blocked_min = "2"; + $snort_rm_blocked_hr = "*/14"; + $snort_rm_blocked_mday = "*"; + $snort_rm_blocked_month = "*"; + $snort_rm_blocked_wday = "*"; + $snort_rm_blocked_expire = "604800"; + } + if ($snort_rm_blocked_info_ck == "28d_b") { + $snort_rm_blocked_min = "2"; + $snort_rm_blocked_hr = "0"; + $snort_rm_blocked_mday = "*/2"; + $snort_rm_blocked_month = "*"; + $snort_rm_blocked_wday = "*"; + $snort_rm_blocked_expire = "2419200"; + } + switch($should_install) { + case true: + if(!$is_installed) { + $cron_item = array(); + $cron_item['minute'] = "$snort_rm_blocked_min"; + $cron_item['hour'] = "$snort_rm_blocked_hr"; + $cron_item['mday'] = "$snort_rm_blocked_mday"; + $cron_item['month'] = "$snort_rm_blocked_month"; + $cron_item['wday'] = "$snort_rm_blocked_wday"; + $cron_item['who'] = "root"; + $cron_item['command'] = "/usr/bin/nice -n20 /usr/local/sbin/expiretable -t $snort_rm_blocked_expire snort2c"; + $config['cron']['item'][] = $cron_item; + write_config("Installed 15 minute filter reload for Time Based Rules"); + configure_cron(); + } + break; + case false: + if($is_installed == true) { + if($x > 0) { + unset($config['cron']['item'][$x]); + write_config(); + } + configure_cron(); + } + break; + } + } + snort_rm_blocked_install_cron(""); + snort_rm_blocked_install_cron($snort_rm_blocked_false); +} + + /* set the snort rules update time */ + $snort_rules_up_info_ck = $config['installedpackages']['snort']['config'][0]['autorulesupdate7']; + if ($snort_rules_up_info_ck == "never_up") + $snort_rules_up_false = ""; + else + $snort_rules_up_false = "true"; + +if ($snort_rules_up_info_ck != "") { +function snort_rules_up_install_cron($should_install) { + global $config, $g; + + if ($g['booting']==true) + return; + + $is_installed = false; + + if(!$config['cron']['item']) + return; + + $x=0; + foreach($config['cron']['item'] as $item) { + if (strstr($item['command'], "snort_check_for_rule_updates.php")) { + $is_installed = true; + break; + } + $x++; + } + $snort_rules_up_info_ck = $config['installedpackages']['snort']['config'][0]['autorulesupdate7']; + if ($snort_rules_up_info_ck == "6h_up") { + $snort_rules_up_min = "3"; + $snort_rules_up_hr = "*/6"; + $snort_rules_up_mday = "*"; + $snort_rules_up_month = "*"; + $snort_rules_up_wday = "*"; + } + if ($snort_rules_up_info_ck == "12h_up") { + $snort_rules_up_min = "3"; + $snort_rules_up_hr = "*/12"; + $snort_rules_up_mday = "*"; + $snort_rules_up_month = "*"; + $snort_rules_up_wday = "*"; + } + if ($snort_rules_up_info_ck == "1d_up") { + $snort_rules_up_min = "3"; + $snort_rules_up_hr = "0"; + $snort_rules_up_mday = "*/1"; + $snort_rules_up_month = "*"; + $snort_rules_up_wday = "*"; + } + if ($snort_rules_up_info_ck == "4d_up") { + $snort_rules_up_min = "3"; + $snort_rules_up_hr = "0"; + $snort_rules_up_mday = "*/4"; + $snort_rules_up_month = "*"; + $snort_rules_up_wday = "*"; + } + if ($snort_rules_up_info_ck == "7d_up") { + $snort_rules_up_min = "3"; + $snort_rules_up_hr = "0"; + $snort_rules_up_mday = "*/7"; + $snort_rules_up_month = "*"; + $snort_rules_up_wday = "*"; + } + if ($snort_rules_up_info_ck == "28d_up") { + $snort_rules_up_min = "3"; + $snort_rules_up_hr = "0"; + $snort_rules_up_mday = "*/28"; + $snort_rules_up_month = "*"; + $snort_rules_up_wday = "*"; + } + switch($should_install) { + case true: + if(!$is_installed) { + $cron_item = array(); + $cron_item['minute'] = "$snort_rules_up_min"; + $cron_item['hour'] = "$snort_rules_up_hr"; + $cron_item['mday'] = "$snort_rules_up_mday"; + $cron_item['month'] = "$snort_rules_up_month"; + $cron_item['wday'] = "$snort_rules_up_wday"; + $cron_item['who'] = "root"; + $cron_item['command'] = "/usr/bin/nice -n20 /usr/local/bin/php -f /usr/local/pkg/snort_check_for_rule_updates.php >> /usr/local/etc/snort_bkup/snort_update.log"; + $config['cron']['item'][] = $cron_item; + write_config("Installed 15 minute filter reload for Time Based Rules"); + configure_cron(); + } + break; + case false: + if($is_installed == true) { + if($x > 0) { + unset($config['cron']['item'][$x]); + write_config(); + } + configure_cron(); + } + break; + } + } + snort_rules_up_install_cron(""); + snort_rules_up_install_cron($snort_rules_up_false); +} + + /* open snort2c's whitelist for writing */ + $whitelist = fopen("/var/db/whitelist", "w"); + if(!$whitelist) { + log_error("Could not open /var/db/whitelist for writing."); + return; + } + + /* build an interface array list */ + $int_array = array('lan'); + for ($j = 1; isset ($config['interfaces']['opt' . $j]); $j++) + if(isset($config['interfaces']['opt' . $j]['enable'])) + if(!$config['interfaces']['opt' . $j]['gateway']) + $int_array[] = "opt{$j}"; + + /* iterate through interface list and write out whitelist items + * and also compile a home_net list for snort. + */ + foreach($int_array as $int) { + /* calculate interface subnet information */ + $ifcfg = &$config['interfaces'][$int]; + $subnet = gen_subnet($ifcfg['ipaddr'], $ifcfg['subnet']); + $subnetmask = gen_subnet_mask($ifcfg['subnet']); + if($subnet == "pppoe" or $subnet == "dhcp") { + $subnet = find_interface_ip("ng0"); + if($subnet) + $home_net .= "{$subnet} "; + } else { + if ($subnet) + if($ifcfg['subnet']) + $home_net .= "{$subnet}/{$ifcfg['subnet']} "; + } + } + + /* add all WAN ips to the whitelist */ + $wan_if = get_real_wan_interface(); + $ip = find_interface_ip($wan_if); + if($ip) + $home_net .= "{$ip} "; + + /* Add Gateway on WAN interface to whitelist (For RRD graphs) */ + $int = convert_friendly_interface_to_real_interface_name("WAN"); + $gw = get_interface_gateway($int); + if($gw) + $home_net .= "{$gw} "; + + /* Add DNS server for WAN interface to whitelist */ + $dns_servers = get_dns_servers(); + foreach($dns_servers as $dns) { + if($dns) + $home_net .= "{$dns} "; + } + + /* Add loopback to whitelist (ftphelper) */ + $home_net .= "127.0.0.1 "; + + /* iterate all vips and add to whitelist */ + if($config['virtualip']) + foreach($config['virtualip']['vip'] as $vip) + if($vip['subnet']) + $home_net .= $vip['subnet'] . " "; + + if($config['installedpackages']['snortwhitelist']) + foreach($config['installedpackages']['snortwhitelist']['config'] as $snort) + if($snort['ip']) + $home_net .= $snort['ip'] . " "; + + /* write out whitelist, convert spaces to carriage returns */ + $whitelist_home_net = str_replace(" ", " ", $home_net); + $whitelist_home_net = str_replace(" ", "\n", $home_net); + + /* make $home_net presentable to snort */ + $home_net = trim($home_net); + $home_net = str_replace(" ", ",", $home_net); + $home_net = "[{$home_net}]"; + + /* foreach through whitelist, writing out to file */ + $whitelist_split = split("\n", $whitelist_home_net); + foreach($whitelist_split as $wl) + if(trim($wl)) + fwrite($whitelist, trim($wl) . "\n"); + + /* should we whitelist vpns? */ + $whitelistvpns = $config['installedpackages']['snort']['config'][0]['whitelistvpns']; + + /* grab a list of vpns and whitelist if user desires added by nestorfish 954 */ + if($whitelistvpns) { + $vpns_list = get_vpns_list(); + $whitelist_vpns = split(" ", $vpns_list); + foreach($whitelist_vpns as $wl) + if(trim($wl)) + fwrite($whitelist, trim($wl) . "\n"); + } + + /* close file */ + fclose($whitelist); + + /* open snort's threshold.conf for writing */ + $threshlist = fopen("/usr/local/etc/snort/threshold.conf", "w"); + if(!$threshlist) { + log_error("Could not open /usr/local/etc/snort/threshold.conf for writing."); + return; + } + + /* list all entries to new lines */ + if($config['installedpackages']['snortthreshold']) + foreach($config['installedpackages']['snortthreshold']['config'] as $snortthreshlist) + if($snortthreshlist['threshrule']) + $snortthreshlist_r .= $snortthreshlist['threshrule'] . "\n"; + + + /* foreach through threshlist, writing out to file */ + $threshlist_split = split("\n", $snortthreshlist_r); + foreach($threshlist_split as $wl) + if(trim($wl)) + fwrite($threshlist, trim($wl) . "\n"); + + /* close snort's threshold.conf file */ + fclose($threshlist); + + /* generate rule sections to load */ + $enabled_rulesets = $config['installedpackages']['snort']['rulesets']; + if($enabled_rulesets) { + $selected_rules_sections = ""; + $enabled_rulesets_array = split("\|\|", $enabled_rulesets); + foreach($enabled_rulesets_array as $enabled_item) + $selected_rules_sections .= "include \$RULE_PATH/{$enabled_item}\n"; + } + + conf_mount_ro(); + + /* build snort configuration file */ + /* TODO; feed back from pfsense users to reduce false positives */ + $snort_conf_text = << \ + cmd_validity STRU < char FRP > \ + cmd_validity ALLO < int [ char R int ] > \ + cmd_validity TYPE < { char AE [ char NTC ] | char I | char L [ number ] } > \ + cmd_validity MDTM < [ date nnnnnnnnnnnnnn[.n[n[n]]] ] string > \ + cmd_validity PORT < host_port > + +preprocessor ftp_telnet_protocol: ftp client default \ + max_resp_len 256 \ + bounce yes \ + telnet_cmds yes + +##################### + # +# SMTP preprocessor # + # +##################### + +preprocessor SMTP: \ + ports { 25 465 691 } \ + inspection_type stateful \ + normalize cmds \ + valid_cmds { MAIL RCPT HELP HELO ETRN EHLO EXPN VRFY ATRN SIZE BDAT DEBUG EMAL ESAM ESND ESOM EVFY IDENT NOOP RSET SEND SAML SOML AUTH TURN ETRN PIPELINING \ +CHUNKING DATA DSN RSET QUIT ONEX QUEU STARTTLS TICK TIME TURNME VERB X-EXPS X-LINK2STATE XADR XAUTH XCIR XEXCH50 XGEN XLICENSE XQUEU XSTA XTRN XUSR } \ + normalize_cmds { MAIL RCPT HELP HELO ETRN EHLO EXPN VRFY ATRN SIZE BDAT DEBUG EMAL ESAM ESND ESOM EVFY IDENT NOOP RSET SEND SAML SOML AUTH TURN ETRN \ +PIPELINING CHUNKING DATA DSN RSET QUIT ONEX QUEU STARTTLS TICK TIME TURNME VERB X-EXPS X-LINK2STATE XADR XAUTH XCIR XEXCH50 XGEN XLICENSE XQUEU XSTA XTRN XUSR } \ + max_header_line_len 1000 \ + max_response_line_len 512 \ + alt_max_command_line_len 260 { MAIL } \ + alt_max_command_line_len 300 { RCPT } \ + alt_max_command_line_len 500 { HELP HELO ETRN EHLO } \ + alt_max_command_line_len 255 { EXPN VRFY ATRN SIZE BDAT DEBUG EMAL ESAM ESND ESOM EVFY IDENT NOOP RSET } \ + alt_max_command_line_len 246 { SEND SAML SOML AUTH TURN ETRN PIPELINING CHUNKING DATA DSN RSET QUIT ONEX } \ + alt_max_command_line_len 246 { QUEU STARTTLS TICK TIME TURNME VERB X-EXPS X-LINK2STATE XADR } \ + alt_max_command_line_len 246 { XAUTH XCIR XEXCH50 XGEN XLICENSE XQUEU XSTA XTRN XUSR } \ + xlink2state { enable } + +################ + # +# sf Portscan # + # +################ + +preprocessor sfportscan: scan_type { all } \ + proto { all } \ + memcap { 10000000 } \ + sense_level { medium } \ + ignore_scanners { \$HOME_NET } + +############################ + # +# OLD # +# preprocessor dcerpc: \ # +# autodetect \ # +# max_frag_size 3000 \ # +# memcap 100000 # + # +############################ + +############### + # +# NEW # +# DCE/RPC 2 # + # +############### + +preprocessor dcerpc2: memcap 102400, events [smb, co, cl] +preprocessor dcerpc2_server: default, policy WinXP, \ + detect [smb [139,445], tcp 135, udp 135, rpc-over-http-server 593], \ + autodetect [tcp 1025:, udp 1025:, rpc-over-http-server 1025:], \ + smb_max_chain 3 + +#################### + # +# DNS preprocessor # + # +#################### + +preprocessor dns: \ + ports { 53 } \ + enable_rdata_overflow + +############################## + # +# NEW # +# Ignore SSL and Encryption # + # +############################## + +preprocessor ssl: ports { 443 465 563 636 989 992 993 994 995 }, trustservers, noinspect_encrypted + +##################### + # +# Snort Output Logs # + # +##################### + +$snortalertlogtype_type +$alertsystemlog_type +$tcpdumplog_type +$snortmysqllog_info_chk +$snortunifiedlog_type +$spoink_type + +################# + # +# Misc Includes # + # +################# + +include /usr/local/etc/snort/reference.config +include /usr/local/etc/snort/classification.config +include /usr/local/etc/snort/threshold.conf + +# Snort user pass through configuration +{$snort_config_pass_thru} + +################### + # +# Rules Selection # + # +################### + +{$selected_rules_sections} + +EOD; + + return $snort_conf_text; +} + +/* check downloaded text from snort.org to make sure that an error did not occur + * for example, if you are not a premium subscriber you can only download rules + * so often, etc. + */ +function check_for_common_errors($filename) { + global $snort_filename, $snort_filename_md5, $console_mode; + ob_flush(); + $contents = file_get_contents($filename); + if(stristr($contents, "You don't have permission")) { + if(!$console_mode) { + update_all_status("An error occured while downloading {$filename}."); + hide_progress_bar_status(); + } else { + log_error("An error occured. Scroll down to inspect it's contents."); + echo "An error occured. Scroll down to inspect it's contents."; + } + if(!$console_mode) { + update_output_window(strip_tags("$contents")); + } else { + $contents = strip_tags($contents); + log_error("Error downloading snort rules: {$contents}"); + echo "Error downloading snort rules: {$contents}"; + } + scroll_down_to_bottom_of_page(); + exit; + } +} + +/* force browser to scroll all the way down */ +function scroll_down_to_bottom_of_page() { + global $snort_filename, $console_mode; + ob_flush(); + if(!$console_mode) + echo "\n"; +} + +/* ensure downloaded file looks sane */ +function verify_downloaded_file($filename) { + global $snort_filename, $snort_filename_md5, $console_mode; + ob_flush(); + if(filesize($filename)<9500) { + if(!$console_mode) { + update_all_status("Checking {$filename}..."); + check_for_common_errors($filename); + } + } + update_all_status("Verifying {$filename}..."); + if(!file_exists($filename)) { + if(!$console_mode) { + update_all_status("Could not fetch snort rules ({$filename}). Check oinkid key and dns and try again."); + hide_progress_bar_status(); + } else { + log_error("Could not fetch snort rules ({$filename}). Check oinkid key and dns and try again."); + echo "Could not fetch snort rules ({$filename}). Check oinkid key and dns and try again."; + } + exit; + } + update_all_status("Verifyied {$filename}."); +} + +/* extract rules */ +function extract_snort_rules_md5($tmpfname) { + global $snort_filename, $snort_filename_md5, $console_mode; + ob_flush(); + if(!$console_mode) { + $static_output = gettext("Extracting snort rules..."); + update_all_status($static_output); + } + if(!is_dir("/usr/local/etc/snort/rules/")) + mkdir("/usr/local/etc/snort/rules/"); + $cmd = "/usr/bin/tar xzf {$tmpfname}/{$snort_filename} -C /usr/local/etc/snort/ rules/"; + $handle = popen("{$cmd} 2>&1", 'r'); + while(!feof($handle)) { + $buffer = fgets($handle); + update_output_window($buffer); + } + pclose($handle); + + if(!$console_mode) { + $static_output = gettext("Snort rules extracted."); + update_all_status($static_output); + } else { + log_error("Snort rules extracted."); + echo "Snort rules extracted."; + } +} + +/* verify MD5 against downloaded item */ +function verify_snort_rules_md5($tmpfname) { + global $snort_filename, $snort_filename_md5, $console_mode; + ob_flush(); + if(!$console_mode) { + $static_output = gettext("Verifying md5 signature..."); + update_all_status($static_output); + } + + $md555 = file_get_contents("{$tmpfname}/{$snort_filename_md5}"); + $md5 = `/bin/echo "{$md555}" | /usr/bin/awk '{ print $4 }'`; + $file_md5_ondisk = `/sbin/md5 {$tmpfname}/{$snort_filename} | /usr/bin/awk '{ print $4 }'`; + if($md5 == $file_md5_ondisk) { + if(!$console_mode) { + $static_output = gettext("snort rules: md5 signature of rules mismatch."); + update_all_status($static_output); + hide_progress_bar_status(); + } else { + log_error("snort rules: md5 signature of rules mismatch."); + echo "snort rules: md5 signature of rules mismatch."; + } + exit; + } +} + +/* hide progress bar */ +function hide_progress_bar_status() { + global $snort_filename, $snort_filename_md5, $console_mode; + ob_flush(); + if(!$console_mode) + echo "\n"; +} + +/* unhide progress bar */ +function unhide_progress_bar_status() { + global $snort_filename, $snort_filename_md5, $console_mode; + ob_flush(); + if(!$console_mode) + echo "\n"; +} + +/* update both top and bottom text box during an operation */ +function update_all_status($status) { + global $snort_filename, $snort_filename_md5, $console_mode; + ob_flush(); + if(!$console_mode) { + update_status($status); + update_output_window($status); + } +} + +/* obtain alert description for an ip address */ +function get_snort_alert($ip) { + global $snort_alert_file_split, $snort_config; + if(!file_exists("/var/log/snort/alert")) + return; + if(!$snort_config) + $snort_config = read_snort_config_cache(); + if($snort_config[$ip]) + return $snort_config[$ip]; + if(!$snort_alert_file_split) + $snort_alert_file_split = split("\n", file_get_contents("/var/log/snort/alert")); + foreach($snort_alert_file_split as $fileline) { + if (preg_match("/\[\*\*\] (\[.*\]) (.*) (\[\*\*\])/", $fileline, $matches)) + $alert_title = $matches[2]; + if (preg_match("/(\b(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\b)/", $fileline, $matches)) + $alert_ip = $matches[0]; + if($alert_ip == $ip) { + if(!$snort_config[$ip]) + $snort_config[$ip] = $alert_title; + return $alert_title; + } + } + return "n/a"; +} + +function make_clickable($buffer) { + global $config, $g; + /* if clickable urls is disabled, simply return buffer back to caller */ + $clickablalerteurls = $config['installedpackages']['snort']['config'][0]['oinkmastercode']; + if(!$clickablalerteurls) + return $buffer; + $buffer = eregi_replace("(^|[ \n\r\t])((http(s?)://)(www\.)?([a-z0-9_-]+(\.[a-z0-9_-]+)+)(/[^/ \n\r]*)*)","\\1\\2", $buffer); + $buffer = eregi_replace("(^|[ \n\r\t])((ftp://)(www\.)?([a-z0-9_-]+(\.[a-z0-9_-]+)+)(/[^/ \n\r]*)*)","\\1\\2", $buffer); + $buffer = eregi_replace("([a-z_-][a-z0-9\._-]*@[a-z0-9_-]+(\.[a-z0-9_-]+)+)","\\1", $buffer); + $buffer = eregi_replace("(^|[ \n\r\t])(www\.([a-z0-9_-]+(\.[a-z0-9_-]+)+)(/[^/ \n\r]*)*)","\\1\\2", $buffer); + $buffer = eregi_replace("(^|[ \n\r\t])(ftp\.([a-z0-9_-]+(\.[a-z0-9_-]+)+)(/[^/ \n\r]*)*)","\\1\\2", $buffer); + + return $buffer; +} + +function read_snort_config_cache() { + global $g, $config, $snort_config; + if($snort_config) + return $snort_config; + if(file_exists($g['tmp_path'] . '/snort_config.cache')) { + $snort_config = unserialize(file_get_contents($g['tmp_path'] . '/snort_config.cache')); + return $snort_config; + } + return; +} + +function write_snort_config_cache($snort_config) { + global $g, $config; + conf_mount_rw(); + $configcache = fopen($g['tmp_path'] . '/snort_config.cache', "w"); + if(!$configcache) { + log_error("Could not open {$g['tmp_path']}/snort_config.cache for writing."); + return false; + } + fwrite($configcache, serialize($snort_config)); + fclose($configcache); + conf_mount_ro(); + return true; +} + +function snort_advanced() { + global $g, $config; + sync_package_snort(); +} + +function snort_define_servers() { + global $g, $config; + sync_package_snort(); +} + +?> diff --git a/config/snort-dev/snort.xml b/config/snort-dev/snort.xml new file mode 100644 index 00000000..e96ccdf7 --- /dev/null +++ b/config/snort-dev/snort.xml @@ -0,0 +1,102 @@ + + + + + + . + All rights reserved. + */ +/* ========================================================================== */ +/* + Redistribution and use in source and binary forms, with or without + modification, are permitted provided that the following conditions are met: + + 1. Redistributions of source code must retain the above copyright notice, + this list of conditions and the following disclaimer. + + 2. Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in the + documentation and/or other materials provided with the distribution. + + THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, + INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY + AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, + OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + POSSIBILITY OF SUCH DAMAGE. + */ +/* ========================================================================== */ + ]]> + + Describe your package here + Describe your package requirements here + Currently there are no FAQ items provided. + Snort + 2.8.4.1_5 + Services: Snort 2.8.4.1_5 pkg v. 1.7 alpha + /usr/local/pkg/snort.inc + + Snort + Setup snort specific settings +
Services
+ /snort/snort_interfaces.php + + + snort + snort.sh + snort + Snort is the most widely deployed IDS/IPS technology worldwide.. + + + + + /usr/local/pkg/snort/ + 077 + http://www.pfsense.com/packages/config/snort-dev/snort_base_files.inc + + + /usr/local/pkg/snort/ + 077 + http://www.pfsense.com/packages/config/snort-dev/snort.inc + + + /usr/local/www/snort/ + 077 + http://www.pfsense.com/packages/config/snort-dev/snort_interfaces.php + + + /usr/local/www/snort/ + 077 + http://www.pfsense.com/packages/config/snort-dev/snort_interfaces_edit.php + + + /usr/local/www/snort/ + 077 + http://www.pfsense.com/packages/config/snort-dev/snort_interfaces_global.php + + + + + + + + + + + snort_deinstall(); + + \ No newline at end of file diff --git a/config/snort-dev/snort_base_files.inc b/config/snort-dev/snort_base_files.inc new file mode 100644 index 00000000..1bc9cea0 --- /dev/null +++ b/config/snort-dev/snort_base_files.inc @@ -0,0 +1,2025 @@ + + + + + + . + All rights reserved. + */ +/* ========================================================================== */ +/* + Redistribution and use in source and binary forms, with or without + modification, are permitted provided that the following conditions are met: + + 1. Redistributions of source code must retain the above copyright notice, + this list of conditions and the following disclaimer. + + 2. Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in the + documentation and/or other materials provided with the distribution. + + THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, + INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY + AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, + OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + POSSIBILITY OF SUCH DAMAGE. + */ +/* ========================================================================== */ + ]]> + + Describe your package here + Describe your package requirements here + Currently there are no FAQ items provided. + Snort{$snortIf} + 2.8.4.1_5 + Services: Snort 2.8.4.1_5 pkg v. 1.6 {$snortIf} + /usr/local/pkg/snort.inc + + + Snort Interfaces + /snort_interfaces.php + + + Settings + /pkg_edit.php?xml=snort/snort_{$snortIf}/snort_{$snortIf}.xml&id=0 + + + + Categories + snort/snort_{$snortIf}/snort_rulesets_{$snortIf}.php + + + Rules + snort/snort_{$snortIf}/snort_rules_{$snortIf}.php + + + Servers + /pkg_edit.php?xml=snort/snort_{$snortIf}/snort_define_servers_{$snortIf}.xml&id=0 + + + Threshold + /pkg.php?xml=snort/snort_{$snortIf}/snort_threshold_{$snortIf}.xml + + + Barnyard2 + /pkg_edit.php?xml=snort/snort_{$snortIf}/snort_barnyard2_{$snortIf}.xml&id=0 + + + + + Interface + iface_array + Select the interface(s) Snort will listen on. + interfaces_selection + 3 + lan + true + + + Memory Performance + performance + Lowmem and ac-bnfa are recommended for low end systems, Ac: high memory, best performance, ac-std: moderate memory,high performance, acs: small memory, moderateperformance, ac-banded: small +memory,moderate performance, ac-sparsebands: small memory, high performance. + select + + + + + + + + + + + + BPF Buffer size + bpfbufsize + Changing this option adjusts the system BPF buffer size. Leave blank if you do not know what this does. Default is 1024. + input + + + Maximum BPF buffer size + bpfmaxbufsize + Changing this option adjusts the system maximum BPF buffer size. Leave blank if you do not know what this does. Default is 524288. This value should never be set above hardware cache size. The +best (optimal size) is 50% - 80% of the hardware cache size. + input + + + Maximum BPF inserts + bpfmaxinsns + Changing this option adjusts the system maximum BPF insert size. Leave blank if you do not know what this does. Default is 512. + input + + + Advanced configuration pass through + configpassthru + Add items to here will be automatically inserted into the running snort configuration + textarea + 40 + 5 + + + Snort signature info files. + signatureinfo + Snort signature info files will be installed during updates. At leats 500 mb of memory is needed. + checkbox + + + Alerts Tab logging type. + snortalertlogtype + Please choose the type of Alert logging you will like see in the Alerts Tab. The options are Full descriptions or Fast short descriptions + select + + + + + + + Send alerts to main System logs. + alertsystemlog + Snort will send Alerts to the Pfsense system logs. + checkbox + + + Log to a Tcpdump file. + tcpdumplog + Snort will log packets to a tcpdump-formatted file. The file then can be analyzed by a wireshark type of application. WARNING: File may become large. + checkbox + + + + snort_deinstall(); + + + +EOD; + +/* write out snort_xml */ +$bconf = fopen("/usr/local/pkg/snort/snort_{$snortIf}/snort_{$snortIf}.xml", "w"); +if(!$bconf) +{ + log_error("Could not open /usr/local/pkg/snort/snort_{$snortIf}/snort_{$snortIf}.xml for writing."); + exit; + } + fwrite($bconf, $snort_xml_text); + fclose($bconf); + + conf_mount_ro(); + + } +} + +/* create barnyard2.xml for every interface selected */ +function create_snort_barnyard2_xml() +{ +include("filter.inc"); +include("config.inc"); + + global $bconfig, $bg; + + conf_mount_rw(); + + $first = 0; + $snortInterfaces = array(); /* -gtm */ + + $if_list = $config['installedpackages']['snort']['config'][0]['iface_array']; + $if_array = split(',', $if_list); + //print_r($if_array); + if($if_array) { + foreach($if_array as $iface) { + $if = convert_friendly_interface_to_real_interface_name($iface); + + if($config['interfaces'][$iface]['ipaddr'] == "pppoe") { + $if = "ng0"; + } + + /* build a list of user specified interfaces -gtm */ + if($if){ + array_push($snortInterfaces, $if); + $first = 1; + } + } + + if (count($snortInterfaces) < 1) { + log_error("Snort will not start. You must select an interface for it to listen on."); + return; + } + } + + + foreach($snortInterfaces as $snortIf) + { + +$snort_barnyard2_text = << + + + + + . + All rights reserved. + */ +/* ========================================================================== */ +/* + Redistribution and use in source and binary forms, with or without + modification, are permitted provided that the following conditions are met: + + 1. Redistributions of source code must retain the above copyright notice, + this list of conditions and the following disclaimer. + + 2. Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in the + documentation and/or other materials provided with the distribution. + + THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, + INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY + AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, + OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + POSSIBILITY OF SUCH DAMAGE. + */ +/* ========================================================================== */ + ]]> + + Describe your package here + Describe your package requirements here + Currently there are no FAQ items provided. + barnyard2{$snortIf} + none + Services: Barnyard2 {$snortIf} + /usr/local/pkg/snort.inc + + + Snort Interfaces + /snort_interfaces.php + + + Settings + /pkg_edit.php?xml=snort/snort_{$snortIf}/snort_{$snortIf}.xml&id=0 + + + Categories + snort/snort_{$snortIf}/snort_rulesets_{$snortIf}.php + + + Rules + snort/snort_{$snortIf}/snort_rules_{$snortIf}.php + + + Servers + /pkg_edit.php?xml=snort/snort_{$snortIf}/snort_define_servers_{$snortIf}.xml&id=0 + + + Threshold + /pkg.php?xml=snort/snort_{$snortIf}/snort_threshold_{$snortIf}.xml + + + Barnyard2 + /pkg_edit.php?xml=snort/snort_{$snortIf}/snort_barnyard2_{$snortIf}.xml&id=0 + + + + + + Enable Barnyard2. + snortbarnyardlog + This will enable barnyard2 in the snort package. You will also have to set the database credentials. + checkbox + + + Barnyard2 Log Mysql Database. + snortbarnyardlog_database + Example: output database: log, mysql, dbname=snort user=snort host=localhost password=xyz + input + 101 + + + + Barnyard2 Configure Hostname ID. + snortbarnyardlog_hostname + Example: pfsense.local + input + 25 + + + + Barnyard2 Configure Interface ID + snortbarnyardlog_interface + Example: vr0 + input + 25 + + + + Log Alerts to a snort unified2 file. + snortunifiedlog + Snort will log Alerts to a file in the UNIFIED2 format. This is a requirement for barnyard2. + checkbox + + + + snort_advanced(); + + + +EOD; + +/* write out snort_barnyard2_xml */ +$bconf = fopen("/usr/local/pkg/snort/snort_{$snortIf}/snort_barnyard2_{$snortIf}.xml", "w"); +if(!$bconf) +{ + log_error("Could not open /usr/local/pkg/snort/snort_{$snortIf}/snort_barnyard2_{$snortIf}.xml for writing."); + exit; + } + fwrite($bconf, $snort_barnyard2_text); + fclose($bconf); + + conf_mount_ro(); + + } +} + + +/* create snort_define_servers.xml for every interface selected */ +function create_snort_define_servers_xml() +{ +include("filter.inc"); +include("config.inc"); + + global $bconfig, $bg; + + conf_mount_rw(); + + $first = 0; + $snortInterfaces = array(); /* -gtm */ + + $if_list = $config['installedpackages']['snort']['config'][0]['iface_array']; + $if_array = split(',', $if_list); + //print_r($if_array); + if($if_array) { + foreach($if_array as $iface) { + $if = convert_friendly_interface_to_real_interface_name($iface); + + if($config['interfaces'][$iface]['ipaddr'] == "pppoe") { + $if = "ng0"; + } + + /* build a list of user specified interfaces -gtm */ + if($if){ + array_push($snortInterfaces, $if); + $first = 1; + } + } + + if (count($snortInterfaces) < 1) { + log_error("Snort will not start. You must select an interface for it to listen on."); + return; + } + } + + + foreach($snortInterfaces as $snortIf) + { + +$snort_define_servers_xml_text = << + + + + + . + All rights reserved. + */ +/* ========================================================================== */ +/* + Redistribution and use in source and binary forms, with or without + modification, are permitted provided that the following conditions are met: + + 1. Redistributions of source code must retain the above copyright notice, + this list of conditions and the following disclaimer. + + 2. Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in the + documentation and/or other materials provided with the distribution. + + THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, + INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY + AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, + OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + POSSIBILITY OF SUCH DAMAGE. + */ +/* ========================================================================== */ + ]]> + + Describe your package here + Describe your package requirements here + Currently there are no FAQ items provided. + SnortDefServers{$snortIf} + none + Services: Snort Define Servers {$snortIf} + /usr/local/pkg/snort.inc + + + Snort Interfaces + /snort_interfaces.php + + + Settings + /pkg_edit.php?xml=snort/snort_{$snortIf}/snort_{$snortIf}.xml&id=0 + + + Categories + snort/snort_{$snortIf}/snort_rulesets_{$snortIf}.php + + + Rules + snort/snort_{$snortIf}/snort_rules_{$snortIf}.php + + + Servers + /pkg_edit.php?xml=snort/snort_{$snortIf}/snort_define_servers_{$snortIf}.xml&id=0 + + + + Threshold + /pkg.php?xml=snort/snort_{$snortIf}/snort_threshold_{$snortIf}.xml + + + Barnyard2 + /pkg_edit.php?xml=snort/snort_{$snortIf}/snort_barnyard2_{$snortIf}.xml&id=0 + + + + + Define DNS_SERVERS + def_dns_servers + Example: "192.168.1.3/24,192.168.1.4/24". Leave blank to scan all networks. + input + 101 + + + + Define DNS_PORTS + def_dns_ports + Example: Specific ports "25,443" or All ports betwen "5060:5090". Default is 53. + input + 43 + + + + Define SMTP_SERVERS + def_smtp_servers + Example: "192.168.1.3/24,192.168.1.4/24". Leave blank to scan all networks. + input + 101 + + + + Define SMTP_PORTS + def_smtp_ports + Example: Specific ports "25,443" or All ports betwen "5060:5090". Default is 25. + input + 43 + + + + Define Mail_Ports + def_mail_ports + Example: Specific ports "25,443" or All ports betwen "5060:5090". Default is 25,143,465,691. + input + 43 + + + + Define HTTP_SERVERS + def_http_servers + Example: "192.168.1.3/24,192.168.1.4/24". Leave blank to scan all networks. + input + 101 + + + + Define WWW_SERVERS + def_www_servers + Example: "192.168.1.3/24,192.168.1.4/24". Leave blank to scan all networks. + input + 101 + + + + Define HTTP_PORTS + def_http_ports + Example: Specific ports "25,443" or All ports betwen "5060:5090". Default is 80. + input + 43 + + + + Define SQL_SERVERS + def_sql_servers + Example: "192.168.1.3/24,192.168.1.4/24". Leave blank to scan all networks. + input + 101 + + + + Define ORACLE_PORTS + def_oracle_ports + Example: Specific ports "25,443" or All ports betwen "5060:5090". Default is 1521. + input + 43 + + + + Define MSSQL_PORTS + def_mssql_ports + Example: Specific ports "25,443" or All ports betwen "5060:5090". Default is 1433. + input + 43 + + + + Define TELNET_SERVERS + def_telnet_servers + Example: "192.168.1.3/24,192.168.1.4/24". Leave blank to scan all networks. + input + 101 + + + + Define TELNET_PORTS + def_telnet_ports + Example: Specific ports "25,443" or All ports betwen "5060:5090". Default is 23. + input + 43 + + + + Define SNMP_SERVERS + def_snmp_servers + Example: "192.168.1.3/24,192.168.1.4/24". Leave blank to scan all networks. + input + 101 + + + + Define SNMP_PORTS + def_snmp_ports + Example: Specific ports "25,443" or All ports betwen "5060:5090". Default is 161. + input + 43 + + + + Define FTP_SERVERS + def_ftp_servers + Example: "192.168.1.3/24,192.168.1.4/24". Leave blank to scan all networks. + input + 101 + + + + Define FTP_PORTS + def_ftp_ports + Example: Specific ports "25,443" or All ports betwen "5060:5090". Default is 21. + input + 43 + + + + Define SSH_SERVERS + def_ssh_servers + Example: "192.168.1.3/24,192.168.1.4/24". Leave blank to scan all networks. + input + 101 + + + + Define SSH_PORTS + def_ssh_ports + Example: Specific ports "25,443" or All ports betwen "5060:5090". Default is Pfsense SSH port. + input + 43 + + + + Define POP_SERVERS + def_pop_servers + Example: "192.168.1.3/24,192.168.1.4/24". Leave blank to scan all networks. + input + 101 + + + + Define POP2_PORTS + def_pop2_ports + Example: Specific ports "25,443" or All ports betwen "5060:5090". Default is 109. + input + 43 + + + + Define POP3_PORTS + def_pop3_ports + Example: Specific ports "25,443" or All ports betwen "5060:5090". Default is 110. + input + 43 + + + + Define IMAP_SERVERS + def_imap_servers + Example: "192.168.1.3/24,192.168.1.4/24". Leave blank to scan all networks. + input + 101 + + + + Define IMAP_PORTS + def_imap_ports + Example: Specific ports "25,443" or All ports betwen "5060:5090". Default is 143. + input + 43 + + + + Define SIP_PROXY_IP + def_sip_proxy_ip + Example: "192.168.1.3/24,192.168.1.4/24". Leave blank to scan all networks. + input + 101 + + + + Define SIP_PROXY_PORTS + def_sip_proxy_ports + Example: Specific ports "25,443" or All ports betwen "5060:5090". Default is 5060:5090,16384:32768. + input + 43 + + + + Define AUTH_PORTS + def_auth_ports + Example: Specific ports "25,443" or All ports betwen "5060:5090". Default is 113. + input + 43 + + + + Define FINGER_PORTS + def_finger_ports + Example: Specific ports "25,443" or All ports betwen "5060:5090". Default is 79. + input + 43 + + + + Define IRC_PORTS + def_irc_ports + Example: Specific ports "25,443" or All ports betwen "5060:5090". Default is 6665,6666,6667,6668,6669,7000. + input + 43 + + + + Define NNTP_PORTS + def_nntp_ports + Example: Specific ports "25,443" or All ports betwen "5060:5090". Default is 119. + input + 43 + + + + Define RLOGIN_PORTS + def_rlogin_ports + Example: Specific ports "25,443" or All ports betwen "5060:5090". Default is 513. + input + 43 + + + + Define RSH_PORTS + def_rsh_ports + Example: Specific ports "25,443" or All ports betwen "5060:5090". Default is 514. + input + 43 + + + + Define SSL_PORTS + def_ssl_ports + Example: Specific ports "25,443" or All ports betwen "5060:5090". Default is 25,443,465,636,993,995. + input + 43 + + + + + snort_define_servers(); + + + +EOD; + +/* write out snort_define_servers_xml */ +$bconf = fopen("/usr/local/pkg/snort/snort_{$snortIf}/snort_define_servers_{$snortIf}.xml", "w"); +if(!$bconf) +{ + log_error("Could not open /usr/local/pkg/snort/snort_{$snortIf}/snort_define_servers_{$snortIf}.xml for writing."); + exit; + } + fwrite($bconf, $snort_define_servers_xml_text); + fclose($bconf); + + conf_mount_ro(); + + } +} + +/* create snort_threshold.xml for every interface selected */ +function create_snort_threshold_xml() +{ +include("filter.inc"); +include("config.inc"); + + global $bconfig, $bg; + + conf_mount_rw(); + + $first = 0; + $snortInterfaces = array(); /* -gtm */ + + $if_list = $config['installedpackages']['snort']['config'][0]['iface_array']; + $if_array = split(',', $if_list); + //print_r($if_array); + if($if_array) { + foreach($if_array as $iface) { + $if = convert_friendly_interface_to_real_interface_name($iface); + + if($config['interfaces'][$iface]['ipaddr'] == "pppoe") { + $if = "ng0"; + } + + /* build a list of user specified interfaces -gtm */ + if($if){ + array_push($snortInterfaces, $if); + $first = 1; + } + } + + if (count($snortInterfaces) < 1) { + log_error("Snort will not start. You must select an interface for it to listen on."); + return; + } + } + + + foreach($snortInterfaces as $snortIf) + { + +$snort_threshold_xml_text = << + + + + + . + All rights reserved. + */ +/* ========================================================================== */ +/* + Redistribution and use in source and binary forms, with or without + modification, are permitted provided that the following conditions are met: + + 1. Redistributions of source code must retain the above copyright notice, + this list of conditions and the following disclaimer. + + 2. Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in the + documentation and/or other materials provided with the distribution. + + THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, + INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY + AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, + OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + POSSIBILITY OF SUCH DAMAGE. + */ +/* ========================================================================== */ + ]]> + + Describe your package here + Describe your package requirements here + Currently there are no FAQ items provided. + snort-threshold{$snortIf} + 0.1.0 + Snort: Alert Thresholding and Suppression {$snortIf} + /usr/local/pkg/snort.inc + + + + Snort Interfaces + /snort_interfaces.php + + + Settings + /pkg_edit.php?xml=snort/snort_{$snortIf}/snort_{$snortIf}.xml&id=0 + + + Categories + snort/snort_{$snortIf}/snort_rulesets_{$snortIf}.php + + + Rules + snort/snort_{$snortIf}/snort_rules_{$snortIf}.php + + + Servers + /pkg_edit.php?xml=snort/snort_{$snortIf}/snort_define_servers_{$snortIf}.xml&id=0 + + + Threshold + /pkg.php?xml=snort/snort_{$snortIf}/snort_threshold_{$snortIf}.xml + + + + Barnyard2 + /pkg_edit.php?xml=snort/snort_{$snortIf}/snort_barnyard2_{$snortIf}.xml&id=0 + + + + + Thresholding or Suppression Rule + threshrule + + + Description + description + + + + + Thresholding or Suppression Rule + threshrule + Enter the Rule. Example; "suppress gen_id 125, sig_id 4" or "threshold gen_id 1, sig_id 1851, type limit, track by_src, count 1, seconds 60" + input + 40 + + + Description + description + Enter the description for this item + input + 60 + + + + + + + + create_snort_conf(); + + + +EOD; + +/* write out snort_threshold_xml */ +$bconf = fopen("/usr/local/pkg/snort/snort_{$snortIf}/snort_threshold_{$snortIf}.xml", "w"); +if(!$bconf) +{ + log_error("Could not open /usr/local/pkg/snort/snort_{$snortIf}/snort_threshold_{$snortIf}.xml for writing."); + exit; + } + fwrite($bconf, $snort_threshold_xml_text); + fclose($bconf); + + conf_mount_ro(); + + } +} + +/* create snort_rules.php for every interface selected */ +function create_snort_rules_php() +{ +include("filter.inc"); +include("config.inc"); + + global $bconfig, $bg; + + conf_mount_rw(); + + $first = 0; + $snortInterfaces = array(); /* -gtm */ + + $if_list = $config['installedpackages']['snort']['config'][0]['iface_array']; + $if_array = split(',', $if_list); + //print_r($if_array); + if($if_array) { + foreach($if_array as $iface) { + $if = convert_friendly_interface_to_real_interface_name($iface); + + if($config['interfaces'][$iface]['ipaddr'] == "pppoe") { + $if = "ng0"; + } + + /* build a list of user specified interfaces -gtm */ + if($if){ + array_push($snortInterfaces, $if); + $first = 1; + } + } + + if (count($snortInterfaces) < 1) { + log_error("Snort will not start. You must select an interface for it to listen on."); + return; + } + } + + + foreach($snortInterfaces as $snortIf) + { + +$snort_rules_php_text = <<"; + +echo "\n +\n +\n + \n + \n + \n + \n + \n + \n +
\n"; + + \$tab_array = array(); + \$tab_array[] = array(gettext("Settings"), false, "/pkg_edit.php?xml=snort/snort_{$snortIf}/snort_{$snortIf}.xml&id=0"); + \$tab_array[] = array(gettext("Categories"), false, "snort/snort_{$snortIf}/snort_rulesets_{$snortIf}.php"); + \$tab_array[] = array(gettext("Rules"), true, "snort/snort_{$snortIf}/snort_rules_{$snortIf}.php"); + \$tab_array[] = array(gettext("Servers"), false, "/pkg_edit.php?xml=snort/snort_{$snortIf}/snort_define_servers_{$snortIf}.xml&id=0"); + \$tab_array[] = array(gettext("Threshold"), false, "/pkg.php?xml=snort/snort_{$snortIf}/snort_threshold_{$snortIf}.xml"); + \$tab_array[] = array(gettext("Barnyard2"), false, "/pkg_edit.php?xml=snort/snort_{$snortIf}/snort_barnyard2_{$snortIf}.xml&id=0"); + display_top_tabs(\$tab_array); + +echo "
\n +
\n + \n + \n + \n + \n +
\n +# The rules directory is empty.\n +
\n +
\n +
\n +\n +\n +\n +

\n\n"; + +echo "Please click on the Update Rules tab to install your selected rule sets."; +include("fend.inc"); + +echo ""; +echo ""; + +exit(0); + +} + +function get_middle(\$source, \$beginning, \$ending, \$init_pos) { + \$beginning_pos = strpos(\$source, \$beginning, \$init_pos); + \$middle_pos = \$beginning_pos + strlen(\$beginning); + \$ending_pos = strpos(\$source, \$ending, \$beginning_pos); + \$middle = substr(\$source, \$middle_pos, \$ending_pos - \$middle_pos); + return \$middle; +} + +function write_rule_file(\$content_changed, \$received_file) +{ + conf_mount_rw(); + + //read snort file with writing enabled + \$filehandle = fopen(\$received_file, "w"); + + //delimiter for each new rule is a new line + \$delimiter = "\n"; + + //implode the array back into a string for writing purposes + \$fullfile = implode(\$delimiter, \$content_changed); + + //write data to file + fwrite(\$filehandle, \$fullfile); + + //close file handle + fclose(\$filehandle); + + conf_mount_rw(); +} + +function load_rule_file(\$incoming_file) +{ + + //read snort file + \$filehandle = fopen(\$incoming_file, "r"); + + //read file into string, and get filesize + \$contents = fread(\$filehandle, filesize(\$incoming_file)); + + //close handler + fclose (\$filehandle); + + //string for populating category select + \$currentruleset = substr(\$file, 27); + + //delimiter for each new rule is a new line + \$delimiter = "\n"; + + //split the contents of the string file into an array using the delimiter + \$splitcontents = explode(\$delimiter, \$contents); + + return \$splitcontents; + +} + +\$ruledir = "/usr/local/etc/snort_{$snortIf}/rules_{$snortIf}/"; +\$dh = opendir(\$ruledir); + +\$message_reload = "The Snort rule configuration has been changed.
You must apply the changes in order for them to take effect."; + +while (false !== (\$filename = readdir(\$dh))) +{ + //only populate this array if its a rule file + \$isrulefile = strstr(\$filename, ".rules"); + if (\$isrulefile !== false) + { + \$files[] = \$filename; + } +} + +sort(\$files); + +if (\$_GET['openruleset']) +{ + \$file = \$_GET['openruleset']; +} +else +{ + \$file = \$ruledir.\$files[0]; + +} + +//Load the rule file +\$splitcontents = load_rule_file(\$file); + +if (\$_POST) +{ + if (!\$_POST['apply']) { + //retrieve POST data + \$post_lineid = \$_POST['lineid']; + \$post_enabled = \$_POST['enabled']; + \$post_src = \$_POST['src']; + \$post_srcport = \$_POST['srcport']; + \$post_dest = \$_POST['dest']; + \$post_destport = \$_POST['destport']; + + //clean up any white spaces insert by accident + \$post_src = str_replace(" ", "", \$post_src); + \$post_srcport = str_replace(" ", "", \$post_srcport); + \$post_dest = str_replace(" ", "", \$post_dest); + \$post_destport = str_replace(" ", "", \$post_destport); + + //copy rule contents from array into string + \$tempstring = \$splitcontents[\$post_lineid]; + + //search string + \$findme = "# alert"; //find string for disabled alerts + + //find if alert is disabled + \$disabled = strstr(\$tempstring, \$findme); + + //if find alert is false, then rule is disabled + if (\$disabled !== false) + { + //has rule been enabled + if (\$post_enabled == "yes") + { + //move counter up 1, so we do not retrieve the # in the rule_content array + \$tempstring = str_replace("# alert", "alert", \$tempstring); + \$counter2 = 1; + } + else + { + //rule is staying disabled + \$counter2 = 2; + } + } + else + { + //has rule been disabled + if (\$post_enabled != "yes") + { + //move counter up 1, so we do not retrieve the # in the rule_content array + \$tempstring = str_replace("alert", "# alert", \$tempstring); + \$counter2 = 2; + } + else + { + //rule is staying enabled + \$counter2 = 1; + } + } + + //explode rule contents into an array, (delimiter is space) + \$rule_content = explode(' ', \$tempstring); + + //insert new values + \$counter2++; + \$rule_content[\$counter2] = \$post_src;//source location + \$counter2++; + \$rule_content[\$counter2] = \$post_srcport;//source port location + \$counter2 = \$counter2+2; + \$rule_content[\$counter2] = \$post_dest;//destination location + \$counter2++; + \$rule_content[\$counter2] = \$post_destport;//destination port location + + //implode the array back into string + \$tempstring = implode(' ', \$rule_content); + + //copy string into file array for writing + \$splitcontents[\$post_lineid] = \$tempstring; + + //write the new .rules file + write_rule_file(\$splitcontents, \$file); + + //once file has been written, reload file + \$splitcontents = load_rule_file(\$file); + + \$stopMsg = true; + } + + if (\$_POST['apply']) { +// stop_service("snort"); +// sleep(2); +// start_service("snort"); + \$savemsg = "The snort rules selections have been saved. Please restart snort by clicking save on the settings tab."; + \$stopMsg = false; + } + +} +else if (\$_GET['act'] == "toggle") +{ + \$toggleid = \$_GET['id']; + + //copy rule contents from array into string + \$tempstring = \$splitcontents[\$toggleid]; + + //explode rule contents into an array, (delimiter is space) + \$rule_content = explode(' ', \$tempstring); + + //search string + \$findme = "# alert"; //find string for disabled alerts + + //find if alert is disabled + \$disabled = strstr(\$tempstring, \$findme); + + //if find alert is false, then rule is disabled + if (\$disabled !== false) + { + //rule has been enabled + //move counter up 1, so we do not retrieve the # in the rule_content array + \$tempstring = str_replace("# alert", "alert", \$tempstring); + + } + else + { + //has rule been disabled + //move counter up 1, so we do not retrieve the # in the rule_content array + \$tempstring = str_replace("alert", "# alert", \$tempstring); + + } + + //copy string into array for writing + \$splitcontents[\$toggleid] = \$tempstring; + + //write the new .rules file + write_rule_file(\$splitcontents, \$file); + + //once file has been written, reload file + \$splitcontents = load_rule_file(\$file); + + \$stopMsg = true; + + //write disable/enable sid to config.xml + if (\$disabled == false) { + \$string_sid = strstr(\$tempstring, 'sid:'); + \$sid_pieces = explode(";", \$string_sid); + \$sid_off_cut = \$sid_pieces[0]; + // sid being turned off + \$sid_off = str_replace("sid:", "", \$sid_off_cut); + // rule_sid_on registers + \$sid_on_pieces = \$config['installedpackages']['snort']['rule_sid_on']; + // if off sid is the same as on sid remove it + \$sid_on_old = str_replace("||enablesid \$sid_off", "", "\$sid_on_pieces"); + // write the replace sid back as empty + \$config['installedpackages']['snort']['rule_sid_on'] = \$sid_on_old; + // rule sid off registers + \$sid_off_pieces = \$config['installedpackages']['snort']['rule_sid_off']; + // if off sid is the same as off sid remove it + \$sid_off_old = str_replace("||disablesid \$sid_off", "", "\$sid_off_pieces"); + // write the replace sid back as empty + \$config['installedpackages']['snort']['rule_sid_off'] = \$sid_off_old; + // add sid off registers to new off sid + \$config['installedpackages']['snort']['rule_sid_off'] = "||disablesid \$sid_off" . \$config['installedpackages']['snort']['rule_sid_off']; + write_config(); + } + else + { + \$string_sid = strstr(\$tempstring, 'sid:'); + \$sid_pieces = explode(";", \$string_sid); + \$sid_on_cut = \$sid_pieces[0]; + // sid being turned off + \$sid_on = str_replace("sid:", "", \$sid_on_cut); + // rule_sid_off registers + \$sid_off_pieces = \$config['installedpackages']['snort']['rule_sid_off']; + // if off sid is the same as on sid remove it + \$sid_off_old = str_replace("||disablesid \$sid_on", "", "\$sid_off_pieces"); + // write the replace sid back as empty + \$config['installedpackages']['snort']['rule_sid_off'] = \$sid_off_old; + // rule sid on registers + \$sid_on_pieces = \$config['installedpackages']['snort']['rule_sid_on']; + // if on sid is the same as on sid remove it + \$sid_on_old = str_replace("||enablesid \$sid_on", "", "\$sid_on_pieces"); + // write the replace sid back as empty + \$config['installedpackages']['snort']['rule_sid_on'] = \$sid_on_old; + // add sid on registers to new on sid + \$config['installedpackages']['snort']['rule_sid_on'] = "||enablesid \$sid_on" . \$config['installedpackages']['snort']['rule_sid_on']; + write_config(); + } + +} + + +\$pgtitle = "Snort: Rules"; +require("guiconfig.inc"); +include("head.inc"); +?> + + + +

"; +?> +
+ +
+
+ + + + + + + + + +
+ +
+
+ + + + +
+ + + + + + + + + + + + + + Category: "; + + //string for populating category select + \$currentruleset = substr(\$file, 27); + ?> + + + + + "; + \$textse = ""; + \$iconb = "icon_block_d.gif"; + } + else + { + \$textss = \$textse = ""; + \$iconb = "icon_block.gif"; + } + + \$rule_content = explode(' ', \$tempstring); + + \$protocol = \$rule_content[\$counter2];//protocol location + \$counter2++; + \$source = \$rule_content[\$counter2];//source location + \$counter2++; + \$source_port = \$rule_content[\$counter2];//source port location + \$counter2 = \$counter2+2; + \$destination = \$rule_content[\$counter2];//destination location + \$counter2++; + \$destination_port = \$rule_content[\$counter2];//destination port location + + \$message = get_middle(\$tempstring, 'msg:"', '";', 0); + + echo ""; + echo ""; + + echo ""; + echo ""; + echo ""; + echo ""; + echo ""; + ?> + +
"; + ?> +
 SIDProtoSourcePortDestinationPortMessage
"; + echo \$textss; + ?> + + "; + + + echo ""; + echo \$textss; + echo \$sid; + echo \$textse; + echo ""; + echo \$textss; + echo \$protocol; + \$printcounter++; + echo \$textse; + echo ""; + echo \$textss; + echo \$source; + echo \$textse; + echo ""; + echo \$textss; + echo \$source_port; + echo \$textse; + echo ""; + echo \$textss; + echo \$destination; + echo \$textse; + echo ""; + echo \$textss; + echo \$destination_port; + echo \$textse; + echo " + "; + ?> + + + + + +
+
+
+ + + + + + + + + + + + + +
Rule Enabled
Rule Disabled
+

+ +

+
+ + + + + + + + + + +EOD; + +/* write out snort_rules_php */ +$bconf = fopen("/usr/local/pkg/snort/snort_{$snortIf}/snort_rules_{$snortIf}.php", "w"); +if(!$bconf) +{ + log_error("Could not open /usr/local/pkg/snort/snort_{$snortIf}/snort_rules_{$snortIf}.php for writing."); + exit; + } + fwrite($bconf, $snort_rules_php_text); + fclose($bconf); + + conf_mount_ro(); + + } +} + +/* create snort_rules_edit.php for every interface selected */ +function create_snort_rules_edit_php() +{ +include("filter.inc"); +include("config.inc"); + + global $bconfig, $bg; + + conf_mount_rw(); + + $first = 0; + $snortInterfaces = array(); /* -gtm */ + + $if_list = $config['installedpackages']['snort']['config'][0]['iface_array']; + $if_array = split(',', $if_list); + //print_r($if_array); + if($if_array) { + foreach($if_array as $iface) { + $if = convert_friendly_interface_to_real_interface_name($iface); + + if($config['interfaces'][$iface]['ipaddr'] == "pppoe") { + $if = "ng0"; + } + + /* build a list of user specified interfaces -gtm */ + if($if){ + array_push($snortInterfaces, $if); + $first = 1; + } + } + + if (count($snortInterfaces) < 1) { + log_error("Snort will not start. You must select an interface for it to listen on."); + return; + } + } + + + foreach($snortInterfaces as $snortIf) + { + +$snort_rules_edit_php_text = << + + + + +

"; +?> + + + + + + + +
+ +
+
+ + + + +
+
+ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
Enabled: >
SID:
Protocol:
Source:
Source Port:
Direction:
Destination:
Destination Port:
Message:
Content:
Classtype:
Revision:
 
   
+
+
+
+ + + + + +EOD; + +/* write out snort_rules_edit_php */ +$bconf = fopen("/usr/local/pkg/snort/snort_{$snortIf}/snort_rules_edit_{$snortIf}.php", "w"); +if(!$bconf) +{ + log_error("Could not open /usr/local/pkg/snort/snort_{$snortIf}/snort_rules_edit_{$snortIf}.php for writing."); + exit; + } + fwrite($bconf, $snort_rules_edit_php_text); + fclose($bconf); + + conf_mount_ro(); + + } +} + + +create_snort_xml(); + +create_snort_barnyard2_xml(); + +create_snort_define_servers_xml(); + +create_snort_threshold_xml(); + +create_snort_rules_php(); + +create_snort_rules_edit_php(); + +?> diff --git a/config/snort-dev/snort_base_files.php b/config/snort-dev/snort_base_files.php deleted file mode 100644 index 1bc9cea0..00000000 --- a/config/snort-dev/snort_base_files.php +++ /dev/null @@ -1,2025 +0,0 @@ - - - - - - . - All rights reserved. - */ -/* ========================================================================== */ -/* - Redistribution and use in source and binary forms, with or without - modification, are permitted provided that the following conditions are met: - - 1. Redistributions of source code must retain the above copyright notice, - this list of conditions and the following disclaimer. - - 2. Redistributions in binary form must reproduce the above copyright - notice, this list of conditions and the following disclaimer in the - documentation and/or other materials provided with the distribution. - - THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, - INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY - AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE - AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, - OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF - SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) - ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - POSSIBILITY OF SUCH DAMAGE. - */ -/* ========================================================================== */ - ]]> - - Describe your package here - Describe your package requirements here - Currently there are no FAQ items provided. - Snort{$snortIf} - 2.8.4.1_5 - Services: Snort 2.8.4.1_5 pkg v. 1.6 {$snortIf} - /usr/local/pkg/snort.inc - - - Snort Interfaces - /snort_interfaces.php - - - Settings - /pkg_edit.php?xml=snort/snort_{$snortIf}/snort_{$snortIf}.xml&id=0 - - - - Categories - snort/snort_{$snortIf}/snort_rulesets_{$snortIf}.php - - - Rules - snort/snort_{$snortIf}/snort_rules_{$snortIf}.php - - - Servers - /pkg_edit.php?xml=snort/snort_{$snortIf}/snort_define_servers_{$snortIf}.xml&id=0 - - - Threshold - /pkg.php?xml=snort/snort_{$snortIf}/snort_threshold_{$snortIf}.xml - - - Barnyard2 - /pkg_edit.php?xml=snort/snort_{$snortIf}/snort_barnyard2_{$snortIf}.xml&id=0 - - - - - Interface - iface_array - Select the interface(s) Snort will listen on. - interfaces_selection - 3 - lan - true - - - Memory Performance - performance - Lowmem and ac-bnfa are recommended for low end systems, Ac: high memory, best performance, ac-std: moderate memory,high performance, acs: small memory, moderateperformance, ac-banded: small -memory,moderate performance, ac-sparsebands: small memory, high performance. - select - - - - - - - - - - - - BPF Buffer size - bpfbufsize - Changing this option adjusts the system BPF buffer size. Leave blank if you do not know what this does. Default is 1024. - input - - - Maximum BPF buffer size - bpfmaxbufsize - Changing this option adjusts the system maximum BPF buffer size. Leave blank if you do not know what this does. Default is 524288. This value should never be set above hardware cache size. The -best (optimal size) is 50% - 80% of the hardware cache size. - input - - - Maximum BPF inserts - bpfmaxinsns - Changing this option adjusts the system maximum BPF insert size. Leave blank if you do not know what this does. Default is 512. - input - - - Advanced configuration pass through - configpassthru - Add items to here will be automatically inserted into the running snort configuration - textarea - 40 - 5 - - - Snort signature info files. - signatureinfo - Snort signature info files will be installed during updates. At leats 500 mb of memory is needed. - checkbox - - - Alerts Tab logging type. - snortalertlogtype - Please choose the type of Alert logging you will like see in the Alerts Tab. The options are Full descriptions or Fast short descriptions - select - - - - - - - Send alerts to main System logs. - alertsystemlog - Snort will send Alerts to the Pfsense system logs. - checkbox - - - Log to a Tcpdump file. - tcpdumplog - Snort will log packets to a tcpdump-formatted file. The file then can be analyzed by a wireshark type of application. WARNING: File may become large. - checkbox - - - - snort_deinstall(); - - - -EOD; - -/* write out snort_xml */ -$bconf = fopen("/usr/local/pkg/snort/snort_{$snortIf}/snort_{$snortIf}.xml", "w"); -if(!$bconf) -{ - log_error("Could not open /usr/local/pkg/snort/snort_{$snortIf}/snort_{$snortIf}.xml for writing."); - exit; - } - fwrite($bconf, $snort_xml_text); - fclose($bconf); - - conf_mount_ro(); - - } -} - -/* create barnyard2.xml for every interface selected */ -function create_snort_barnyard2_xml() -{ -include("filter.inc"); -include("config.inc"); - - global $bconfig, $bg; - - conf_mount_rw(); - - $first = 0; - $snortInterfaces = array(); /* -gtm */ - - $if_list = $config['installedpackages']['snort']['config'][0]['iface_array']; - $if_array = split(',', $if_list); - //print_r($if_array); - if($if_array) { - foreach($if_array as $iface) { - $if = convert_friendly_interface_to_real_interface_name($iface); - - if($config['interfaces'][$iface]['ipaddr'] == "pppoe") { - $if = "ng0"; - } - - /* build a list of user specified interfaces -gtm */ - if($if){ - array_push($snortInterfaces, $if); - $first = 1; - } - } - - if (count($snortInterfaces) < 1) { - log_error("Snort will not start. You must select an interface for it to listen on."); - return; - } - } - - - foreach($snortInterfaces as $snortIf) - { - -$snort_barnyard2_text = << - - - - - . - All rights reserved. - */ -/* ========================================================================== */ -/* - Redistribution and use in source and binary forms, with or without - modification, are permitted provided that the following conditions are met: - - 1. Redistributions of source code must retain the above copyright notice, - this list of conditions and the following disclaimer. - - 2. Redistributions in binary form must reproduce the above copyright - notice, this list of conditions and the following disclaimer in the - documentation and/or other materials provided with the distribution. - - THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, - INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY - AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE - AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, - OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF - SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) - ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - POSSIBILITY OF SUCH DAMAGE. - */ -/* ========================================================================== */ - ]]> - - Describe your package here - Describe your package requirements here - Currently there are no FAQ items provided. - barnyard2{$snortIf} - none - Services: Barnyard2 {$snortIf} - /usr/local/pkg/snort.inc - - - Snort Interfaces - /snort_interfaces.php - - - Settings - /pkg_edit.php?xml=snort/snort_{$snortIf}/snort_{$snortIf}.xml&id=0 - - - Categories - snort/snort_{$snortIf}/snort_rulesets_{$snortIf}.php - - - Rules - snort/snort_{$snortIf}/snort_rules_{$snortIf}.php - - - Servers - /pkg_edit.php?xml=snort/snort_{$snortIf}/snort_define_servers_{$snortIf}.xml&id=0 - - - Threshold - /pkg.php?xml=snort/snort_{$snortIf}/snort_threshold_{$snortIf}.xml - - - Barnyard2 - /pkg_edit.php?xml=snort/snort_{$snortIf}/snort_barnyard2_{$snortIf}.xml&id=0 - - - - - - Enable Barnyard2. - snortbarnyardlog - This will enable barnyard2 in the snort package. You will also have to set the database credentials. - checkbox - - - Barnyard2 Log Mysql Database. - snortbarnyardlog_database - Example: output database: log, mysql, dbname=snort user=snort host=localhost password=xyz - input - 101 - - - - Barnyard2 Configure Hostname ID. - snortbarnyardlog_hostname - Example: pfsense.local - input - 25 - - - - Barnyard2 Configure Interface ID - snortbarnyardlog_interface - Example: vr0 - input - 25 - - - - Log Alerts to a snort unified2 file. - snortunifiedlog - Snort will log Alerts to a file in the UNIFIED2 format. This is a requirement for barnyard2. - checkbox - - - - snort_advanced(); - - - -EOD; - -/* write out snort_barnyard2_xml */ -$bconf = fopen("/usr/local/pkg/snort/snort_{$snortIf}/snort_barnyard2_{$snortIf}.xml", "w"); -if(!$bconf) -{ - log_error("Could not open /usr/local/pkg/snort/snort_{$snortIf}/snort_barnyard2_{$snortIf}.xml for writing."); - exit; - } - fwrite($bconf, $snort_barnyard2_text); - fclose($bconf); - - conf_mount_ro(); - - } -} - - -/* create snort_define_servers.xml for every interface selected */ -function create_snort_define_servers_xml() -{ -include("filter.inc"); -include("config.inc"); - - global $bconfig, $bg; - - conf_mount_rw(); - - $first = 0; - $snortInterfaces = array(); /* -gtm */ - - $if_list = $config['installedpackages']['snort']['config'][0]['iface_array']; - $if_array = split(',', $if_list); - //print_r($if_array); - if($if_array) { - foreach($if_array as $iface) { - $if = convert_friendly_interface_to_real_interface_name($iface); - - if($config['interfaces'][$iface]['ipaddr'] == "pppoe") { - $if = "ng0"; - } - - /* build a list of user specified interfaces -gtm */ - if($if){ - array_push($snortInterfaces, $if); - $first = 1; - } - } - - if (count($snortInterfaces) < 1) { - log_error("Snort will not start. You must select an interface for it to listen on."); - return; - } - } - - - foreach($snortInterfaces as $snortIf) - { - -$snort_define_servers_xml_text = << - - - - - . - All rights reserved. - */ -/* ========================================================================== */ -/* - Redistribution and use in source and binary forms, with or without - modification, are permitted provided that the following conditions are met: - - 1. Redistributions of source code must retain the above copyright notice, - this list of conditions and the following disclaimer. - - 2. Redistributions in binary form must reproduce the above copyright - notice, this list of conditions and the following disclaimer in the - documentation and/or other materials provided with the distribution. - - THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, - INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY - AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE - AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, - OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF - SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) - ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - POSSIBILITY OF SUCH DAMAGE. - */ -/* ========================================================================== */ - ]]> - - Describe your package here - Describe your package requirements here - Currently there are no FAQ items provided. - SnortDefServers{$snortIf} - none - Services: Snort Define Servers {$snortIf} - /usr/local/pkg/snort.inc - - - Snort Interfaces - /snort_interfaces.php - - - Settings - /pkg_edit.php?xml=snort/snort_{$snortIf}/snort_{$snortIf}.xml&id=0 - - - Categories - snort/snort_{$snortIf}/snort_rulesets_{$snortIf}.php - - - Rules - snort/snort_{$snortIf}/snort_rules_{$snortIf}.php - - - Servers - /pkg_edit.php?xml=snort/snort_{$snortIf}/snort_define_servers_{$snortIf}.xml&id=0 - - - - Threshold - /pkg.php?xml=snort/snort_{$snortIf}/snort_threshold_{$snortIf}.xml - - - Barnyard2 - /pkg_edit.php?xml=snort/snort_{$snortIf}/snort_barnyard2_{$snortIf}.xml&id=0 - - - - - Define DNS_SERVERS - def_dns_servers - Example: "192.168.1.3/24,192.168.1.4/24". Leave blank to scan all networks. - input - 101 - - - - Define DNS_PORTS - def_dns_ports - Example: Specific ports "25,443" or All ports betwen "5060:5090". Default is 53. - input - 43 - - - - Define SMTP_SERVERS - def_smtp_servers - Example: "192.168.1.3/24,192.168.1.4/24". Leave blank to scan all networks. - input - 101 - - - - Define SMTP_PORTS - def_smtp_ports - Example: Specific ports "25,443" or All ports betwen "5060:5090". Default is 25. - input - 43 - - - - Define Mail_Ports - def_mail_ports - Example: Specific ports "25,443" or All ports betwen "5060:5090". Default is 25,143,465,691. - input - 43 - - - - Define HTTP_SERVERS - def_http_servers - Example: "192.168.1.3/24,192.168.1.4/24". Leave blank to scan all networks. - input - 101 - - - - Define WWW_SERVERS - def_www_servers - Example: "192.168.1.3/24,192.168.1.4/24". Leave blank to scan all networks. - input - 101 - - - - Define HTTP_PORTS - def_http_ports - Example: Specific ports "25,443" or All ports betwen "5060:5090". Default is 80. - input - 43 - - - - Define SQL_SERVERS - def_sql_servers - Example: "192.168.1.3/24,192.168.1.4/24". Leave blank to scan all networks. - input - 101 - - - - Define ORACLE_PORTS - def_oracle_ports - Example: Specific ports "25,443" or All ports betwen "5060:5090". Default is 1521. - input - 43 - - - - Define MSSQL_PORTS - def_mssql_ports - Example: Specific ports "25,443" or All ports betwen "5060:5090". Default is 1433. - input - 43 - - - - Define TELNET_SERVERS - def_telnet_servers - Example: "192.168.1.3/24,192.168.1.4/24". Leave blank to scan all networks. - input - 101 - - - - Define TELNET_PORTS - def_telnet_ports - Example: Specific ports "25,443" or All ports betwen "5060:5090". Default is 23. - input - 43 - - - - Define SNMP_SERVERS - def_snmp_servers - Example: "192.168.1.3/24,192.168.1.4/24". Leave blank to scan all networks. - input - 101 - - - - Define SNMP_PORTS - def_snmp_ports - Example: Specific ports "25,443" or All ports betwen "5060:5090". Default is 161. - input - 43 - - - - Define FTP_SERVERS - def_ftp_servers - Example: "192.168.1.3/24,192.168.1.4/24". Leave blank to scan all networks. - input - 101 - - - - Define FTP_PORTS - def_ftp_ports - Example: Specific ports "25,443" or All ports betwen "5060:5090". Default is 21. - input - 43 - - - - Define SSH_SERVERS - def_ssh_servers - Example: "192.168.1.3/24,192.168.1.4/24". Leave blank to scan all networks. - input - 101 - - - - Define SSH_PORTS - def_ssh_ports - Example: Specific ports "25,443" or All ports betwen "5060:5090". Default is Pfsense SSH port. - input - 43 - - - - Define POP_SERVERS - def_pop_servers - Example: "192.168.1.3/24,192.168.1.4/24". Leave blank to scan all networks. - input - 101 - - - - Define POP2_PORTS - def_pop2_ports - Example: Specific ports "25,443" or All ports betwen "5060:5090". Default is 109. - input - 43 - - - - Define POP3_PORTS - def_pop3_ports - Example: Specific ports "25,443" or All ports betwen "5060:5090". Default is 110. - input - 43 - - - - Define IMAP_SERVERS - def_imap_servers - Example: "192.168.1.3/24,192.168.1.4/24". Leave blank to scan all networks. - input - 101 - - - - Define IMAP_PORTS - def_imap_ports - Example: Specific ports "25,443" or All ports betwen "5060:5090". Default is 143. - input - 43 - - - - Define SIP_PROXY_IP - def_sip_proxy_ip - Example: "192.168.1.3/24,192.168.1.4/24". Leave blank to scan all networks. - input - 101 - - - - Define SIP_PROXY_PORTS - def_sip_proxy_ports - Example: Specific ports "25,443" or All ports betwen "5060:5090". Default is 5060:5090,16384:32768. - input - 43 - - - - Define AUTH_PORTS - def_auth_ports - Example: Specific ports "25,443" or All ports betwen "5060:5090". Default is 113. - input - 43 - - - - Define FINGER_PORTS - def_finger_ports - Example: Specific ports "25,443" or All ports betwen "5060:5090". Default is 79. - input - 43 - - - - Define IRC_PORTS - def_irc_ports - Example: Specific ports "25,443" or All ports betwen "5060:5090". Default is 6665,6666,6667,6668,6669,7000. - input - 43 - - - - Define NNTP_PORTS - def_nntp_ports - Example: Specific ports "25,443" or All ports betwen "5060:5090". Default is 119. - input - 43 - - - - Define RLOGIN_PORTS - def_rlogin_ports - Example: Specific ports "25,443" or All ports betwen "5060:5090". Default is 513. - input - 43 - - - - Define RSH_PORTS - def_rsh_ports - Example: Specific ports "25,443" or All ports betwen "5060:5090". Default is 514. - input - 43 - - - - Define SSL_PORTS - def_ssl_ports - Example: Specific ports "25,443" or All ports betwen "5060:5090". Default is 25,443,465,636,993,995. - input - 43 - - - - - snort_define_servers(); - - - -EOD; - -/* write out snort_define_servers_xml */ -$bconf = fopen("/usr/local/pkg/snort/snort_{$snortIf}/snort_define_servers_{$snortIf}.xml", "w"); -if(!$bconf) -{ - log_error("Could not open /usr/local/pkg/snort/snort_{$snortIf}/snort_define_servers_{$snortIf}.xml for writing."); - exit; - } - fwrite($bconf, $snort_define_servers_xml_text); - fclose($bconf); - - conf_mount_ro(); - - } -} - -/* create snort_threshold.xml for every interface selected */ -function create_snort_threshold_xml() -{ -include("filter.inc"); -include("config.inc"); - - global $bconfig, $bg; - - conf_mount_rw(); - - $first = 0; - $snortInterfaces = array(); /* -gtm */ - - $if_list = $config['installedpackages']['snort']['config'][0]['iface_array']; - $if_array = split(',', $if_list); - //print_r($if_array); - if($if_array) { - foreach($if_array as $iface) { - $if = convert_friendly_interface_to_real_interface_name($iface); - - if($config['interfaces'][$iface]['ipaddr'] == "pppoe") { - $if = "ng0"; - } - - /* build a list of user specified interfaces -gtm */ - if($if){ - array_push($snortInterfaces, $if); - $first = 1; - } - } - - if (count($snortInterfaces) < 1) { - log_error("Snort will not start. You must select an interface for it to listen on."); - return; - } - } - - - foreach($snortInterfaces as $snortIf) - { - -$snort_threshold_xml_text = << - - - - - . - All rights reserved. - */ -/* ========================================================================== */ -/* - Redistribution and use in source and binary forms, with or without - modification, are permitted provided that the following conditions are met: - - 1. Redistributions of source code must retain the above copyright notice, - this list of conditions and the following disclaimer. - - 2. Redistributions in binary form must reproduce the above copyright - notice, this list of conditions and the following disclaimer in the - documentation and/or other materials provided with the distribution. - - THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, - INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY - AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE - AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, - OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF - SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) - ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - POSSIBILITY OF SUCH DAMAGE. - */ -/* ========================================================================== */ - ]]> - - Describe your package here - Describe your package requirements here - Currently there are no FAQ items provided. - snort-threshold{$snortIf} - 0.1.0 - Snort: Alert Thresholding and Suppression {$snortIf} - /usr/local/pkg/snort.inc - - - - Snort Interfaces - /snort_interfaces.php - - - Settings - /pkg_edit.php?xml=snort/snort_{$snortIf}/snort_{$snortIf}.xml&id=0 - - - Categories - snort/snort_{$snortIf}/snort_rulesets_{$snortIf}.php - - - Rules - snort/snort_{$snortIf}/snort_rules_{$snortIf}.php - - - Servers - /pkg_edit.php?xml=snort/snort_{$snortIf}/snort_define_servers_{$snortIf}.xml&id=0 - - - Threshold - /pkg.php?xml=snort/snort_{$snortIf}/snort_threshold_{$snortIf}.xml - - - - Barnyard2 - /pkg_edit.php?xml=snort/snort_{$snortIf}/snort_barnyard2_{$snortIf}.xml&id=0 - - - - - Thresholding or Suppression Rule - threshrule - - - Description - description - - - - - Thresholding or Suppression Rule - threshrule - Enter the Rule. Example; "suppress gen_id 125, sig_id 4" or "threshold gen_id 1, sig_id 1851, type limit, track by_src, count 1, seconds 60" - input - 40 - - - Description - description - Enter the description for this item - input - 60 - - - - - - - - create_snort_conf(); - - - -EOD; - -/* write out snort_threshold_xml */ -$bconf = fopen("/usr/local/pkg/snort/snort_{$snortIf}/snort_threshold_{$snortIf}.xml", "w"); -if(!$bconf) -{ - log_error("Could not open /usr/local/pkg/snort/snort_{$snortIf}/snort_threshold_{$snortIf}.xml for writing."); - exit; - } - fwrite($bconf, $snort_threshold_xml_text); - fclose($bconf); - - conf_mount_ro(); - - } -} - -/* create snort_rules.php for every interface selected */ -function create_snort_rules_php() -{ -include("filter.inc"); -include("config.inc"); - - global $bconfig, $bg; - - conf_mount_rw(); - - $first = 0; - $snortInterfaces = array(); /* -gtm */ - - $if_list = $config['installedpackages']['snort']['config'][0]['iface_array']; - $if_array = split(',', $if_list); - //print_r($if_array); - if($if_array) { - foreach($if_array as $iface) { - $if = convert_friendly_interface_to_real_interface_name($iface); - - if($config['interfaces'][$iface]['ipaddr'] == "pppoe") { - $if = "ng0"; - } - - /* build a list of user specified interfaces -gtm */ - if($if){ - array_push($snortInterfaces, $if); - $first = 1; - } - } - - if (count($snortInterfaces) < 1) { - log_error("Snort will not start. You must select an interface for it to listen on."); - return; - } - } - - - foreach($snortInterfaces as $snortIf) - { - -$snort_rules_php_text = <<"; - -echo "\n -\n -\n - \n - \n - \n - \n - \n - \n -
\n"; - - \$tab_array = array(); - \$tab_array[] = array(gettext("Settings"), false, "/pkg_edit.php?xml=snort/snort_{$snortIf}/snort_{$snortIf}.xml&id=0"); - \$tab_array[] = array(gettext("Categories"), false, "snort/snort_{$snortIf}/snort_rulesets_{$snortIf}.php"); - \$tab_array[] = array(gettext("Rules"), true, "snort/snort_{$snortIf}/snort_rules_{$snortIf}.php"); - \$tab_array[] = array(gettext("Servers"), false, "/pkg_edit.php?xml=snort/snort_{$snortIf}/snort_define_servers_{$snortIf}.xml&id=0"); - \$tab_array[] = array(gettext("Threshold"), false, "/pkg.php?xml=snort/snort_{$snortIf}/snort_threshold_{$snortIf}.xml"); - \$tab_array[] = array(gettext("Barnyard2"), false, "/pkg_edit.php?xml=snort/snort_{$snortIf}/snort_barnyard2_{$snortIf}.xml&id=0"); - display_top_tabs(\$tab_array); - -echo "
\n -
\n - \n - \n - \n - \n -
\n -# The rules directory is empty.\n -
\n -
\n -
\n -\n -\n -\n -

\n\n"; - -echo "Please click on the Update Rules tab to install your selected rule sets."; -include("fend.inc"); - -echo ""; -echo ""; - -exit(0); - -} - -function get_middle(\$source, \$beginning, \$ending, \$init_pos) { - \$beginning_pos = strpos(\$source, \$beginning, \$init_pos); - \$middle_pos = \$beginning_pos + strlen(\$beginning); - \$ending_pos = strpos(\$source, \$ending, \$beginning_pos); - \$middle = substr(\$source, \$middle_pos, \$ending_pos - \$middle_pos); - return \$middle; -} - -function write_rule_file(\$content_changed, \$received_file) -{ - conf_mount_rw(); - - //read snort file with writing enabled - \$filehandle = fopen(\$received_file, "w"); - - //delimiter for each new rule is a new line - \$delimiter = "\n"; - - //implode the array back into a string for writing purposes - \$fullfile = implode(\$delimiter, \$content_changed); - - //write data to file - fwrite(\$filehandle, \$fullfile); - - //close file handle - fclose(\$filehandle); - - conf_mount_rw(); -} - -function load_rule_file(\$incoming_file) -{ - - //read snort file - \$filehandle = fopen(\$incoming_file, "r"); - - //read file into string, and get filesize - \$contents = fread(\$filehandle, filesize(\$incoming_file)); - - //close handler - fclose (\$filehandle); - - //string for populating category select - \$currentruleset = substr(\$file, 27); - - //delimiter for each new rule is a new line - \$delimiter = "\n"; - - //split the contents of the string file into an array using the delimiter - \$splitcontents = explode(\$delimiter, \$contents); - - return \$splitcontents; - -} - -\$ruledir = "/usr/local/etc/snort_{$snortIf}/rules_{$snortIf}/"; -\$dh = opendir(\$ruledir); - -\$message_reload = "The Snort rule configuration has been changed.
You must apply the changes in order for them to take effect."; - -while (false !== (\$filename = readdir(\$dh))) -{ - //only populate this array if its a rule file - \$isrulefile = strstr(\$filename, ".rules"); - if (\$isrulefile !== false) - { - \$files[] = \$filename; - } -} - -sort(\$files); - -if (\$_GET['openruleset']) -{ - \$file = \$_GET['openruleset']; -} -else -{ - \$file = \$ruledir.\$files[0]; - -} - -//Load the rule file -\$splitcontents = load_rule_file(\$file); - -if (\$_POST) -{ - if (!\$_POST['apply']) { - //retrieve POST data - \$post_lineid = \$_POST['lineid']; - \$post_enabled = \$_POST['enabled']; - \$post_src = \$_POST['src']; - \$post_srcport = \$_POST['srcport']; - \$post_dest = \$_POST['dest']; - \$post_destport = \$_POST['destport']; - - //clean up any white spaces insert by accident - \$post_src = str_replace(" ", "", \$post_src); - \$post_srcport = str_replace(" ", "", \$post_srcport); - \$post_dest = str_replace(" ", "", \$post_dest); - \$post_destport = str_replace(" ", "", \$post_destport); - - //copy rule contents from array into string - \$tempstring = \$splitcontents[\$post_lineid]; - - //search string - \$findme = "# alert"; //find string for disabled alerts - - //find if alert is disabled - \$disabled = strstr(\$tempstring, \$findme); - - //if find alert is false, then rule is disabled - if (\$disabled !== false) - { - //has rule been enabled - if (\$post_enabled == "yes") - { - //move counter up 1, so we do not retrieve the # in the rule_content array - \$tempstring = str_replace("# alert", "alert", \$tempstring); - \$counter2 = 1; - } - else - { - //rule is staying disabled - \$counter2 = 2; - } - } - else - { - //has rule been disabled - if (\$post_enabled != "yes") - { - //move counter up 1, so we do not retrieve the # in the rule_content array - \$tempstring = str_replace("alert", "# alert", \$tempstring); - \$counter2 = 2; - } - else - { - //rule is staying enabled - \$counter2 = 1; - } - } - - //explode rule contents into an array, (delimiter is space) - \$rule_content = explode(' ', \$tempstring); - - //insert new values - \$counter2++; - \$rule_content[\$counter2] = \$post_src;//source location - \$counter2++; - \$rule_content[\$counter2] = \$post_srcport;//source port location - \$counter2 = \$counter2+2; - \$rule_content[\$counter2] = \$post_dest;//destination location - \$counter2++; - \$rule_content[\$counter2] = \$post_destport;//destination port location - - //implode the array back into string - \$tempstring = implode(' ', \$rule_content); - - //copy string into file array for writing - \$splitcontents[\$post_lineid] = \$tempstring; - - //write the new .rules file - write_rule_file(\$splitcontents, \$file); - - //once file has been written, reload file - \$splitcontents = load_rule_file(\$file); - - \$stopMsg = true; - } - - if (\$_POST['apply']) { -// stop_service("snort"); -// sleep(2); -// start_service("snort"); - \$savemsg = "The snort rules selections have been saved. Please restart snort by clicking save on the settings tab."; - \$stopMsg = false; - } - -} -else if (\$_GET['act'] == "toggle") -{ - \$toggleid = \$_GET['id']; - - //copy rule contents from array into string - \$tempstring = \$splitcontents[\$toggleid]; - - //explode rule contents into an array, (delimiter is space) - \$rule_content = explode(' ', \$tempstring); - - //search string - \$findme = "# alert"; //find string for disabled alerts - - //find if alert is disabled - \$disabled = strstr(\$tempstring, \$findme); - - //if find alert is false, then rule is disabled - if (\$disabled !== false) - { - //rule has been enabled - //move counter up 1, so we do not retrieve the # in the rule_content array - \$tempstring = str_replace("# alert", "alert", \$tempstring); - - } - else - { - //has rule been disabled - //move counter up 1, so we do not retrieve the # in the rule_content array - \$tempstring = str_replace("alert", "# alert", \$tempstring); - - } - - //copy string into array for writing - \$splitcontents[\$toggleid] = \$tempstring; - - //write the new .rules file - write_rule_file(\$splitcontents, \$file); - - //once file has been written, reload file - \$splitcontents = load_rule_file(\$file); - - \$stopMsg = true; - - //write disable/enable sid to config.xml - if (\$disabled == false) { - \$string_sid = strstr(\$tempstring, 'sid:'); - \$sid_pieces = explode(";", \$string_sid); - \$sid_off_cut = \$sid_pieces[0]; - // sid being turned off - \$sid_off = str_replace("sid:", "", \$sid_off_cut); - // rule_sid_on registers - \$sid_on_pieces = \$config['installedpackages']['snort']['rule_sid_on']; - // if off sid is the same as on sid remove it - \$sid_on_old = str_replace("||enablesid \$sid_off", "", "\$sid_on_pieces"); - // write the replace sid back as empty - \$config['installedpackages']['snort']['rule_sid_on'] = \$sid_on_old; - // rule sid off registers - \$sid_off_pieces = \$config['installedpackages']['snort']['rule_sid_off']; - // if off sid is the same as off sid remove it - \$sid_off_old = str_replace("||disablesid \$sid_off", "", "\$sid_off_pieces"); - // write the replace sid back as empty - \$config['installedpackages']['snort']['rule_sid_off'] = \$sid_off_old; - // add sid off registers to new off sid - \$config['installedpackages']['snort']['rule_sid_off'] = "||disablesid \$sid_off" . \$config['installedpackages']['snort']['rule_sid_off']; - write_config(); - } - else - { - \$string_sid = strstr(\$tempstring, 'sid:'); - \$sid_pieces = explode(";", \$string_sid); - \$sid_on_cut = \$sid_pieces[0]; - // sid being turned off - \$sid_on = str_replace("sid:", "", \$sid_on_cut); - // rule_sid_off registers - \$sid_off_pieces = \$config['installedpackages']['snort']['rule_sid_off']; - // if off sid is the same as on sid remove it - \$sid_off_old = str_replace("||disablesid \$sid_on", "", "\$sid_off_pieces"); - // write the replace sid back as empty - \$config['installedpackages']['snort']['rule_sid_off'] = \$sid_off_old; - // rule sid on registers - \$sid_on_pieces = \$config['installedpackages']['snort']['rule_sid_on']; - // if on sid is the same as on sid remove it - \$sid_on_old = str_replace("||enablesid \$sid_on", "", "\$sid_on_pieces"); - // write the replace sid back as empty - \$config['installedpackages']['snort']['rule_sid_on'] = \$sid_on_old; - // add sid on registers to new on sid - \$config['installedpackages']['snort']['rule_sid_on'] = "||enablesid \$sid_on" . \$config['installedpackages']['snort']['rule_sid_on']; - write_config(); - } - -} - - -\$pgtitle = "Snort: Rules"; -require("guiconfig.inc"); -include("head.inc"); -?> - - - -

"; -?> -
- -
-
- - - - - - - - - -
- -
-
- - - - -
- - - - - - - - - - - - - - Category: "; - - //string for populating category select - \$currentruleset = substr(\$file, 27); - ?> - - - - - "; - \$textse = ""; - \$iconb = "icon_block_d.gif"; - } - else - { - \$textss = \$textse = ""; - \$iconb = "icon_block.gif"; - } - - \$rule_content = explode(' ', \$tempstring); - - \$protocol = \$rule_content[\$counter2];//protocol location - \$counter2++; - \$source = \$rule_content[\$counter2];//source location - \$counter2++; - \$source_port = \$rule_content[\$counter2];//source port location - \$counter2 = \$counter2+2; - \$destination = \$rule_content[\$counter2];//destination location - \$counter2++; - \$destination_port = \$rule_content[\$counter2];//destination port location - - \$message = get_middle(\$tempstring, 'msg:"', '";', 0); - - echo ""; - echo ""; - - echo ""; - echo ""; - echo ""; - echo ""; - echo ""; - ?> - -
"; - ?> -
 SIDProtoSourcePortDestinationPortMessage
"; - echo \$textss; - ?> - - "; - - - echo ""; - echo \$textss; - echo \$sid; - echo \$textse; - echo ""; - echo \$textss; - echo \$protocol; - \$printcounter++; - echo \$textse; - echo ""; - echo \$textss; - echo \$source; - echo \$textse; - echo ""; - echo \$textss; - echo \$source_port; - echo \$textse; - echo ""; - echo \$textss; - echo \$destination; - echo \$textse; - echo ""; - echo \$textss; - echo \$destination_port; - echo \$textse; - echo " - "; - ?> - - - - - -
-
-
- - - - - - - - - - - - - -
Rule Enabled
Rule Disabled
-

- -

-
- - - - - - - - - - -EOD; - -/* write out snort_rules_php */ -$bconf = fopen("/usr/local/pkg/snort/snort_{$snortIf}/snort_rules_{$snortIf}.php", "w"); -if(!$bconf) -{ - log_error("Could not open /usr/local/pkg/snort/snort_{$snortIf}/snort_rules_{$snortIf}.php for writing."); - exit; - } - fwrite($bconf, $snort_rules_php_text); - fclose($bconf); - - conf_mount_ro(); - - } -} - -/* create snort_rules_edit.php for every interface selected */ -function create_snort_rules_edit_php() -{ -include("filter.inc"); -include("config.inc"); - - global $bconfig, $bg; - - conf_mount_rw(); - - $first = 0; - $snortInterfaces = array(); /* -gtm */ - - $if_list = $config['installedpackages']['snort']['config'][0]['iface_array']; - $if_array = split(',', $if_list); - //print_r($if_array); - if($if_array) { - foreach($if_array as $iface) { - $if = convert_friendly_interface_to_real_interface_name($iface); - - if($config['interfaces'][$iface]['ipaddr'] == "pppoe") { - $if = "ng0"; - } - - /* build a list of user specified interfaces -gtm */ - if($if){ - array_push($snortInterfaces, $if); - $first = 1; - } - } - - if (count($snortInterfaces) < 1) { - log_error("Snort will not start. You must select an interface for it to listen on."); - return; - } - } - - - foreach($snortInterfaces as $snortIf) - { - -$snort_rules_edit_php_text = << - - - - -

"; -?> - - - - - - - -
- -
-
- - - - -
-
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Enabled: >
SID:
Protocol:
Source:
Source Port:
Direction:
Destination:
Destination Port:
Message:
Content:
Classtype:
Revision:
 
   
-
-
-
- - - - - -EOD; - -/* write out snort_rules_edit_php */ -$bconf = fopen("/usr/local/pkg/snort/snort_{$snortIf}/snort_rules_edit_{$snortIf}.php", "w"); -if(!$bconf) -{ - log_error("Could not open /usr/local/pkg/snort/snort_{$snortIf}/snort_rules_edit_{$snortIf}.php for writing."); - exit; - } - fwrite($bconf, $snort_rules_edit_php_text); - fclose($bconf); - - conf_mount_ro(); - - } -} - - -create_snort_xml(); - -create_snort_barnyard2_xml(); - -create_snort_define_servers_xml(); - -create_snort_threshold_xml(); - -create_snort_rules_php(); - -create_snort_rules_edit_php(); - -?> diff --git a/config/snort-dev/snort_interfaces.php b/config/snort-dev/snort_interfaces.php index 065ec0dc..773b6f9a 100644 --- a/config/snort-dev/snort_interfaces.php +++ b/config/snort-dev/snort_interfaces.php @@ -3,7 +3,6 @@ /* snort_interfaces.php Copyright (C) 2004 Scott Ullrich - Copyright (C) 2004 Robert Zelaya All rights reserved. originally part of m0n0wall (http://m0n0.ch/wall) @@ -33,11 +32,12 @@ */ require("guiconfig.inc"); +require("/usr/local/pkg/snort_misc.inc"); -if (!is_array($config['installedpackages']['snortglobal'])) - $config['installedpackages']['snortglobal'] = array(); +if (!is_array($config['installedpackages']['snortglobal']['rule'])) + $config['installedpackages']['snortglobal']['rule'] = array(); -$a_nat = &$config['installedpackages']['snortglobal']; +$a_nat = &$config['installedpackages']['snortglobal']['rule']; /* if a custom message has been passed along, lets process it */ if ($_GET['savemsg']) @@ -85,7 +85,7 @@ if (isset($_POST['del_x'])) { } write_config(); touch($d_natconfdirty_path); - header("Services: snort_interfaces.php"); + header("Location: snort_interfaces.php"); exit; } @@ -128,38 +128,54 @@ if (isset($_POST['del_x'])) { $a_nat = $a_nat_new; write_config(); touch($d_natconfdirty_path); - header("Services: snort_interfaces.php"); + header("Location: snort_interfaces.php"); exit; } } -$pgtitle = "Services: Snort 2.8.4.1_5 pkg v. 1.7"; +$pgtitle = "Services: Snort Interfaces"; include("head.inc"); ?>

+ + +

The NAT configuration has been changed.
You must apply the changes in order for them to take effect."); + print_info_box_np2("{$savemsg}
The Snort configuration has been changed.
You must apply the changes in order for them to take effect."); else - print_info_box_np("The NAT configuration has been changed.
You must apply the changes in order for them to take effect."); + print_info_box_np2("The Snort configuration has been changed.
You must apply the changes in order for them to take effect."); ?> @@ -265,25 +285,31 @@ include("head.inc"); +
@@ -170,19 +186,18 @@ include("head.inc"); - - - - - - - - - + + + + + + + @@ -206,43 +221,52 @@ include("head.inc"); ?> - - - - -
  IfInlineInline portInline port rangeBlock HostsBarnyard2Description +  IfSnortSnortBlock HostsBarnyard2Description - +
- - - + - - (ext.: " . $natent['external-address'] . ")"; - else - echo "
(ext.: " . find_interface_ip(convert_friendly_interface_to_real_interface_name($natent['interface'])) . ")"; - ?> + + 		- + - + + @@ -253,10 +277,6 @@ include("head.inc");
- - + - - -
-
- -

Note:
Snort Inline mode is disabled and in private testing. Snort Inline release target is pfSense 2.0.

- - +
+ + +
Note: +
+ This is the Snort Interfaces Menu where you can see an over view of all your interface settings. +
+ Please edit the Global Settings tab befor adding an interface. +

+ Click on the Plus Icon to add a interface. +
+ Click on the Edit Icon to edit interface settings. +
+ "") { echo ""; diff --git a/config/snort-dev/snort_interfaces_edit.php b/config/snort-dev/snort_interfaces_edit.php index 4ee9203e..49f40638 100644 --- a/config/snort-dev/snort_interfaces_edit.php +++ b/config/snort-dev/snort_interfaces_edit.php @@ -1,11 +1,11 @@ . - Copyright (C) 2003-2004 Robert Zelaya + Copyright (C) 2008-2009 Robert Zelaya. All rights reserved. Redistribution and use in source and binary forms, with or without @@ -48,14 +48,17 @@ if (isset($_GET['dup'])) { } if (isset($id) && $a_nat[$id]) { - $pconfig['proto'] = $a_nat[$id]['protocol']; - list($pconfig['beginport'],$pconfig['endport']) = explode("-", $a_nat[$id]['external-port']); - $pconfig['localip'] = $a_nat[$id]['target']; - $pconfig['localbeginport'] = $a_nat[$id]['local-port']; - $pconfig['descr'] = $a_nat[$id]['descr']; + + $pconfig['enable'] = $a_nat[$id]['enable']; $pconfig['interface'] = $a_nat[$id]['interface']; - $pconfig['block'] = isset($a_nat[$id]['block']); - $pconfig['inline'] = isset($a_nat[$id]['inline']); + $pconfig['descr'] = $a_nat[$id]['descr']; + $pconfig['performance'] = $a_nat[$id]['performance']; + $pconfig['blockoffenders7'] = $a_nat[$id]['blockoffenders7']; + $pconfig['snortalertlogtype'] = $a_nat[$id]['snortalertlogtype']; + $pconfig['alertsystemlog'] = $a_nat[$id]['alertsystemlog']; + $pconfig['tcpdumplog'] = $a_nat[$id]['tcpdumplog']; + $pconfig['flow_depth'] = $a_nat[$id]['flow_depth']; + if (!$pconfig['interface']) $pconfig['interface'] = "wan"; } else { @@ -67,65 +70,49 @@ if (isset($_GET['dup'])) if ($_POST) { - if ($_POST['beginport_cust'] && !$_POST['beginport']) - $_POST['beginport'] = $_POST['beginport_cust']; - if ($_POST['endport_cust'] && !$_POST['endport']) - $_POST['endport'] = $_POST['endport_cust']; - if ($_POST['localbeginport_cust'] && !$_POST['localbeginport']) - $_POST['localbeginport'] = $_POST['localbeginport_cust']; - - if (!$_POST['endport']) - $_POST['endport'] = $_POST['beginport']; - /* Make beginning port end port if not defined and endport is */ - if (!$_POST['beginport'] && $_POST['endport']) - $_POST['beginport'] = $_POST['endport']; - - unset($input_errors); - $pconfig = $_POST; - /* input validation */ - if(strtoupper($_POST['proto']) == "TCP" or strtoupper($_POST['proto']) == "UDP" or strtoupper($_POST['proto']) == "TCP/UDP") { - $reqdfields = explode(" ", "interface proto beginport endport localip localbeginport"); - $reqdfieldsn = explode(",", "Interface,Protocol,External port from,External port to,NAT IP,Local port"); - } else { - $reqdfields = explode(" ", "interface proto localip"); - $reqdfieldsn = explode(",", "Interface,Protocol,NAT IP"); - } +// if(strtoupper($_POST['proto']) == "TCP" or strtoupper($_POST['proto']) == "UDP" or strtoupper($_POST['proto']) == "TCP/UDP") { +// $reqdfields = explode(" ", "interface proto beginport endport localip localbeginport"); +// $reqdfieldsn = explode(",", "Interface,Protocol,External port from,External port to,NAT IP,Local port"); +// } else { +// $reqdfields = explode(" ", "interface proto localip"); +// $reqdfieldsn = explode(",", "Interface,Protocol,NAT IP"); +// } - do_input_validation($_POST, $reqdfields, $reqdfieldsn, &$input_errors); +// do_input_validation($_POST, $reqdfields, $reqdfieldsn, &$input_errors); // if (($_POST['localip'] && !is_ipaddroralias($_POST['localip']))) { -// $input_errors[] = "\"{$_POST['localip']}\" is not valid subnet address."; +// $input_errors[] = "\"{$_POST['localip']}\" is not valid NAT IP address or host alias."; // } /* only validate the ports if the protocol is TCP, UDP or TCP/UDP */ - if(strtoupper($_POST['proto']) == "TCP" or strtoupper($_POST['proto']) == "UDP" or strtoupper($_POST['proto']) == "TCP/UDP") { +// if(strtoupper($_POST['proto']) == "TCP" or strtoupper($_POST['proto']) == "UDP" or strtoupper($_POST['proto']) == "TCP/UDP") { - if (($_POST['beginport'] && !is_ipaddroralias($_POST['beginport']) && !is_port($_POST['beginport']))) { - $input_errors[] = "The start port must be an integer between 1 and 65535."; - } +// if (($_POST['beginport'] && !is_ipaddroralias($_POST['beginport']) && !is_port($_POST['beginport']))) { +// $input_errors[] = "The start port must be an integer between 1 and 65535."; +// } - if (($_POST['endport'] && !is_ipaddroralias($_POST['endport']) && !is_port($_POST['endport']))) { - $input_errors[] = "The end port must be an integer between 1 and 65535."; - } +// if (($_POST['endport'] && !is_ipaddroralias($_POST['endport']) && !is_port($_POST['endport']))) { +// $input_errors[] = "The end port must be an integer between 1 and 65535."; +// } - if (($_POST['localbeginport'] && !is_ipaddroralias($_POST['localbeginport']) && !is_port($_POST['localbeginport']))) { - $input_errors[] = "The local port must be an integer between 1 and 65535."; - } +// if (($_POST['localbeginport'] && !is_ipaddroralias($_POST['localbeginport']) && !is_port($_POST['localbeginport']))) { +// $input_errors[] = "The local port must be an integer between 1 and 65535."; +// } - if ($_POST['beginport'] > $_POST['endport']) { +// if ($_POST['beginport'] > $_POST['endport']) { /* swap */ - $tmp = $_POST['endport']; - $_POST['endport'] = $_POST['beginport']; - $_POST['beginport'] = $tmp; - } +// $tmp = $_POST['endport']; +// $_POST['endport'] = $_POST['beginport']; +// $_POST['beginport'] = $tmp; +// } - if (!$input_errors) { - if (($_POST['endport'] - $_POST['beginport'] + $_POST['localbeginport']) > 65535) - $input_errors[] = "The target port range must be an integer between 1 and 65535."; - } +// if (!$input_errors) { +// if (($_POST['endport'] - $_POST['beginport'] + $_POST['localbeginport']) > 65535) +// $input_errors[] = "The target port range must be an integer between 1 and 65535."; +// } - } +// } /* check for overlaps */ foreach ($a_nat as $natent) { @@ -133,48 +120,21 @@ if ($_POST) { continue; if ($natent['interface'] != $_POST['interface']) continue; - if ($natent['external-address'] != $_POST['extaddr']) - continue; - if (($natent['proto'] != $_POST['proto']) && ($natent['proto'] != "tcp/udp") && ($_POST['proto'] != "tcp/udp")) - continue; - - list($begp,$endp) = explode("-", $natent['external-port']); - if (!$endp) - $endp = $begp; - - if (!( (($_POST['beginport'] < $begp) && ($_POST['endport'] < $begp)) - || (($_POST['beginport'] > $endp) && ($_POST['endport'] > $endp)))) { - - $input_errors[] = "The external port range overlaps with an existing entry."; - break; - } } +/* if no errors write to conf */ if (!$input_errors) { $natent = array(); - if ($_POST['extaddr']) - $natent['external-address'] = $_POST['extaddr']; - $natent['protocol'] = $_POST['proto']; - - if ($_POST['beginport'] == $_POST['endport']) - $natent['external-port'] = $_POST['beginport']; - else - $natent['external-port'] = $_POST['beginport'] . "-" . $_POST['endport']; - - $natent['target'] = $_POST['localip']; - $natent['local-port'] = $_POST['localbeginport']; - $natent['interface'] = $_POST['interface']; + $natent['enable'] = $_POST['enable'] ? on : off; + /* if option is diabled add a default answer */ + $natent['interface'] = $_POST['interface'] ? $_POST['interface'] : $pconfig['interface']; $natent['descr'] = $_POST['descr']; - - if($_POST['block'] == "yes") - $natent['block'] = true; - else - unset($natent['block']); - - if($_POST['inline'] == "yes") - $natent['inline'] = true; - else - unset($natent['inline']); + $natent['performance'] = $_POST['performance']; + $natent['blockoffenders7'] = $_POST['blockoffenders7'] ? on : off; + $natent['snortalertlogtype'] = $_POST['snortalertlogtype']; + $natent['alertsystemlog'] = $_POST['alertsystemlog'] ? on : off; + $natent['tcpdumplog'] = $_POST['tcpdumplog'] ? on : off; + $natent['flow_depth'] = $_POST['flow_depth']; if (isset($id) && $a_nat[$id]) $a_nat[$id] = $natent; @@ -183,7 +143,9 @@ if ($_POST) { array_splice($a_nat, $after+1, 0, array($natent)); else $a_nat[] = $natent; - } + } + + touch($d_natconfdirty_path); write_config(); @@ -192,21 +154,66 @@ if ($_POST) { } } -$pgtitle = "Services: Snort Interfaces"; +$pgtitle = "Services: Snort Interfaces Edit"; include("head.inc"); ?> - + + + +

+ - - + + + + -
return; } } + + /* do for the selected interface */ foreach($snortInterfaces as $snortIf) - - $tab_array = array(); - $tab_array[] = array("Interfaces", false, "snort_interfaces.php"); - $tab_array[] = array("Settings", false, "/pkg_edit.php?xml=snort/snort_{$snortIf}/snort_{$snortIf}.xml&id=0"); - $tab_array[] = array("Categories", false, "snort/snort_{$snortIf}/snort_rulesets_{$snortIf}.php"); - $tab_array[] = array("Rules", false, "snort/snort_{$snortIf}/snort_rules_{$snortIf}.php"); - $tab_array[] = array("Servers", false, "/pkg_edit.php?xml=snort/snort_{$snortIf}/snort_define_servers_{$snortIf}.xml&id=0"); - $tab_array[] = array("Threshold", false, "/pkg.php?xml=snort/snort_{$snortIf}/snort_threshold_{$snortIf}.xml"); - $tab_array[] = array("Barnyard2", false, "/pkg_edit.php?xml=snort/snort_{$snortIf}/snort_barnyard2_{$snortIf}.xml&id=0"); - display_top_tabs($tab_array); - - } + { + + /* if base directories dont exist create them */ + if(!file_exists("/usr/local/pkg/snort/snort_{$snortIf}_{$id}/")) + { + exec("/bin/mkdir -p /usr/local/pkg/snort/snort_{$snortIf}_{$id}/"); + if(!file_exists("/usr/local/www/snort/snort_{$snortIf}_{$id}/")) + exec("/bin/mkdir -p /usr/local/www/snort/snort_{$snortIf}_{$id}/"); + } + + $tab_array = array(); + $tab_array[] = array("Snort Interfaces", false, "/snort_interfaces.php"); + $tab_array[] = array("If Settings", true, "/snort_interfaces_edit.php"); + $tab_array[] = array("Categories", false, "/snort/snort_{$snortIf}_{$id}/snort_rulesets_{$snortIf}_{$id}.php"); + $tab_array[] = array("Rules", false, "/snort/snort_{$snortIf}_{$id}/snort_rules_{$snortIf}_{$id}.php"); + $tab_array[] = array("Servers", false, "/pkg_edit.php?xml=snort/snort_{$snortIf}_{$id}/snort_define_servers_{$snortIf}_{$id}.xml&id=0"); + $tab_array[] = array("Barnyard2", false, "/pkg_edit.php?xml=snort/snort_{$snortIf}_{$id}/snort_barnyard2_{$snortIf}_{$id}.xml&id=0"); + $tab_array[] = array("Barnyard2", false, "/pkg_edit.php?xml=snort/snort_{$snortIf}_{$id}/snort_barnyard2_{$snortIf}_{$id}.xml&id=0"); + $tab_array[] = array("Barnyard2", false, "/pkg_edit.php?xml=snort/snort_{$snortIf}_{$id}/snort_barnyard2_{$snortIf}_{$id}.xml&id=0"); + display_top_tabs($tab_array); + } +} ?> -
- + + + + + + + +
+ + + + + \n"; + } + ?> + + + \n\n"; + ?> + + - - - - - - - - - - - - - - - - - - - - - - - - - + - - + + + + + + + + + + + + + + + + + + + + + + + + -
 Note:
+ You will be redirected to the Snort Interfaces Menu to aprove changes.
+ After approval, interface options will be made available. +

+ Please select a interface and a description. +
  + + // care with spaces + if ($pconfig['enable'] == "on") + $checked = checked; + if($id != "") + { + $onclick_enable = "onClick=\"enable_change(false)\">"; + } + echo " + Enable Interface
Interface
Choose which interface this rule applies to.
Hint: in most cases, you'll want to use WAN here.
Block all offenders - >
- HINT: Block all offenders that trigger an alert on the selected interface. -
Enable Inline Mode - >
- HINT: This will enable Snort Inline mode on the selected interafce. -
Inline listening port - -
- Specify the port Snort Inline should lissten on.
- Hint: Never enter a port that is already being used by the system.
Inline Divert Protocol -
Choose which IP protocol Snort Inline should divert.
- Hint: in most cases, you should specify All  here.
Inline Divert External port range - - - - - - - - - -
from:  
to:
-
Specify the port or port range Snort Inline should divert on the firewall's external address.
- Hint: you can leave the 'to' field empty if you only want to divert a single port
- Hint: you can leave from and to empty to divert all ports.
Inline IP Subnet - -
Enter the internal IP subnet address you wish to sniff. Leave blank for all.
- e.g. 192.168.1.0/24
DescriptionDescription
You may enter a description here for your reference (not parsed).
Memory Performance +
+ Lowmem and ac-bnfa are recommended for low end systems, Ac: high memory, best performance, ac-std: moderate memory,high performance, acs: small memory, moderateperformance, ac-banded: small memory,moderate performance, ac-sparsebands: small memory, high performance.
+ Hint: in most cases, you'll want to use WAN here.
Block offenders + onClick="enable_change(false)">
+ Checking this option will automatically block hosts that generate a snort alert.
Alerts Tab description type +
+ Please choose the type of Alert logging you will like see in the Alerts Tab.
+ Hint: in most cases, short descriptions are best.
Send alerts to main System logs + onClick="enable_change(false)">
+ Snort will send Alerts to the Pfsense system logs.
Log to a Tcpdump file + onClick="enable_change(false)">
+ Snort will log packets to a tcpdump-formatted file. The file then can be analyzed by a wireshark type of application. WARNING: File may become large.
HTTP server flow depth + + + + +
-1 to 1460 (-1 disables HTTP inspect, 0 enables all HTTP inspect)
+ Amount of HTTP server response payload to inspect. Snort's performance may increase by ajusting this value.
+ Setting this value too low may cause false negatives. Value above 0 is in bytes.
+ Default value is 0
  - +
+
 Note: +
+ Please save your settings befor you click start.
+ + - "") - foreach($config['aliases']['alias'] as $alias_name) { - if(!stristr($alias_name['address'], ".")) { - if($isfirst == 1) $aliases .= ","; - $aliases .= "'" . $alias_name['name'] . "'"; - $isfirst = 1; - } else { - if($addrisfirst == 1) $aliasesaddr .= ","; - $aliasesaddr .= "'" . $alias_name['name'] . "'"; - $addrisfirst = 1; - } - } -?> - diff --git a/config/snort-dev/snort_interfaces_global.php b/config/snort-dev/snort_interfaces_global.php new file mode 100644 index 00000000..43c5cf6c --- /dev/null +++ b/config/snort-dev/snort_interfaces_global.php @@ -0,0 +1,279 @@ +. + Copyright (C) 2003-2006 Robert Zelaya + All rights reserved. + + Redistribution and use in source and binary forms, with or without + modification, are permitted provided that the following conditions are met: + + 1. Redistributions of source code must retain the above copyright notice, + this list of conditions and the following disclaimer. + + 2. Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in the + documentation and/or other materials provided with the distribution. + + THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, + INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY + AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, + OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + POSSIBILITY OF SUCH DAMAGE. +*/ + +$pgtitle = "Services:[Snort][Global Settings]"; +require("guiconfig.inc"); + +/* make things short */ +$pconfig['snortdownload'] = $config['installedpackages']['snortglobal']['snortdownload']; +$pconfig['oinkmastercode'] = $config['installedpackages']['snortglobal']['oinkmastercode']; +$pconfig['emergingthreats'] = $config['installedpackages']['snortglobal']['emergingthreats']; +$pconfig['rm_blocked'] = $config['installedpackages']['snortglobal']['rm_blocked']; +$pconfig['autorulesupdate7'] = $config['installedpackages']['snortglobal']['autorulesupdate7']; +$pconfig['whitelistvpns'] = $config['installedpackages']['snortglobal']['whitelistvpns']; +$pconfig['clickablalerteurls'] = $config['installedpackages']['snortglobal']['clickablalerteurls']; +$pconfig['associatealertip'] = $config['installedpackages']['snortglobal']['associatealertip']; + +if ($_POST) { + + unset($input_errors); + $pconfig = $_POST; + + /* input validation */ + if ($_POST['enable']) { + $reqdfields = explode(" ", "interface"); + $reqdfieldsn = explode(",", "Interface"); + + do_input_validation($_POST, $reqdfields, $reqdfieldsn, &$input_errors); + + if ($_POST['httpslogin_enable']) { + if (!$_POST['cert'] || !$_POST['key']) { + $input_errors[] = "Certificate and key must be specified for HTTPS login."; + } else { + if (!strstr($_POST['cert'], "BEGIN CERTIFICATE") || !strstr($_POST['cert'], "END CERTIFICATE")) + $input_errors[] = "This certificate does not appear to be valid."; + if (!strstr($_POST['key'], "BEGIN RSA PRIVATE KEY") || !strstr($_POST['key'], "END RSA PRIVATE KEY")) + $input_errors[] = "This key does not appear to be valid."; + } + + if (!$_POST['httpsname'] || !is_domain($_POST['httpsname'])) { + $input_errors[] = "The HTTPS server name must be specified for HTTPS login."; + } + } + } + + if ($_POST['timeout'] && (!is_numeric($_POST['timeout']) || ($_POST['timeout'] < 1))) { + $input_errors[] = "The timeout must be at least 1 minute."; + } + if ($_POST['idletimeout'] && (!is_numeric($_POST['idletimeout']) || ($_POST['idletimeout'] < 1))) { + $input_errors[] = "The idle timeout must be at least 1 minute."; + } + if (($_POST['radiusip'] && !is_ipaddr($_POST['radiusip']))) { + $input_errors[] = "A valid IP address must be specified. [".$_POST['radiusip']."]"; + } + if (($_POST['radiusip2'] && !is_ipaddr($_POST['radiusip2']))) { + $input_errors[] = "A valid IP address must be specified. [".$_POST['radiusip2']."]"; + } + if (($_POST['radiusport'] && !is_port($_POST['radiusport']))) { + $input_errors[] = "A valid port number must be specified. [".$_POST['radiusport']."]"; + } + if (($_POST['radiusport2'] && !is_port($_POST['radiusport2']))) { + $input_errors[] = "A valid port number must be specified. [".$_POST['radiusport2']."]"; + } + if (($_POST['radiusacctport'] && !is_port($_POST['radiusacctport']))) { + $input_errors[] = "A valid port number must be specified. [".$_POST['radiusacctport']."]"; + } + if ($_POST['maxproc'] && (!is_numeric($_POST['maxproc']) || ($_POST['maxproc'] < 4) || ($_POST['maxproc'] > 100))) { + $input_errors[] = "The total maximum number of concurrent connections must be between 4 and 100."; + } + $mymaxproc = $_POST['maxproc'] ? $_POST['maxproc'] : 16; + if ($_POST['maxprocperip'] && (!is_numeric($_POST['maxprocperip']) || ($_POST['maxprocperip'] > $mymaxproc))) { + $input_errors[] = "The maximum number of concurrent connections per client IP address may not be larger than the global maximum."; + } + + if (!$input_errors) { + + $config['installedpackages']['snortglobal']['snortdownload'] = $_POST['snortdownload']; + $config['installedpackages']['snortglobal']['oinkmastercode'] = $_POST['oinkmastercode']; + $config['installedpackages']['snortglobal']['emergingthreats'] = $_POST['emergingthreats'] ? on : off; + $config['installedpackages']['snortglobal']['rm_blocked'] = $_POST['rm_blocked']; + $config['installedpackages']['snortglobal']['autorulesupdate7'] = $_POST['autorulesupdate7']; + $config['installedpackages']['snortglobal']['whitelistvpns'] = $_POST['whitelistvpns'] ? on : off; + $config['installedpackages']['snortglobal']['clickablalerteurls'] = $_POST['clickablalerteurls'] ? on : off; + $config['installedpackages']['snortglobal']['associatealertip'] = $_POST['associatealertip'] ? on : off; + + write_config(); + + $retval = 0; + + config_lock(); + $retval = captiveportal_configure(); + config_unlock(); + + $savemsg = get_std_save_message($retval); + } +} +include("head.inc"); +?> + + +

+ + + +
+ + + + + +
+
+ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
Install Snort.org rules + + + + + + + + + + + + + + +
> + Do NOT install
> + Premium rules HIGHLY RECOMMENDED
> + Basic Rules
  
+ + + + + + + + +
Oinkmaster code
Code
+ Obtain a snort.org Oinkmaster code and paste here.
+
Install Emergingthreats rules + onClick="enable_change(false)">
+ Emerging Threats is an open source community that produces fastest moving and diverse Snort Rules.
Remove blocked hosts every +
+ Please select the amount of time you would like hosts to be blocked for.
+ Hint: in most cases, 1 hour is a good choice.
Update rules automatically +
+ Please select the update times for rules.
+ Hint: in most cases, every 12 hours is a good choice.
Whitelist VPNs automatically + onClick="enable_change(false)">
+ Checking this option will install whitelists for all VPNs.
Convert Snort alerts urls to clickable links + onClick="enable_change(false)">
+ Checking this option will automatically convert URLs in the Snort alerts tab to clickable links.
Associate events on Blocked tab + onClick="enable_change(false)">
+ Checking this option will automatically associate the blocked reason from the snort alerts file.
  + +
 Note:
+ Changing any settings on this page will disconnect all clients! Don't forget to enable the DHCP server on your captive portal interface! Make sure that the default/maximum DHCP lease time is higher than the timeout entered on this page. Also, the DNS forwarder needs to be enabled for DNS lookups by unauthenticated clients to work.
+
+
+ + + + diff --git a/pkg_config.7.xml b/pkg_config.7.xml index efe733fa..a4889707 100755 --- a/pkg_config.7.xml +++ b/pkg_config.7.xml @@ -308,6 +308,25 @@ snort.xml Please visit the Snort settings tab and enter your oinkid code. Afterwards visit the update rules tab to download the snort rules. + + snort-dev + http://forum.pfsense.org/index.php/topic,16847.0.html + http://www.snort.org + Development branch, broken as of Oct. 28 2009. + Security + http://files.pfsense.org/packages/70/All/ + libdnet-1.11_3.tbz + pcre-7.9.tbz + perl-5.8.9_3.tbz + mysql-client-5.1.34.tbz + snort-2.8.4.1_1.tbz + http://www.pfsense.com/packages/config/snort-dev/snort.xml + 2.8.4.1_5 pkg v.1.7 + 1.2.2 + Alpha + snort.xml + Please visit the Snort settings tab and enter your oinkid code. Afterwards visit the update rules tab to download the snort rules. + spamd http://www.openbsd.org/spamd/ -- cgit v1.2.3