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-rw-r--r--config/snort/pfsense_rules/pfsense-voip.rules3
-rw-r--r--config/snort/pfsense_rules/pfsense_rules.tar.gz.md51
-rw-r--r--config/snort/pfsense_rules/rules/pfsense-voip.rules11
-rwxr-xr-xconfig/snort/snort.inc2
-rw-r--r--config/snort/snort_download_rules.php89
5 files changed, 96 insertions, 10 deletions
diff --git a/config/snort/pfsense_rules/pfsense-voip.rules b/config/snort/pfsense_rules/pfsense-voip.rules
deleted file mode 100644
index f168403d..00000000
--- a/config/snort/pfsense_rules/pfsense-voip.rules
+++ /dev/null
@@ -1,3 +0,0 @@
-alert ip any any -> $HOME_NET $SIP_PROXY_PORTS (msg:"OPTIONS SIP scan"; content:"OPTIONS"; depth:7; threshold: type both , track by_src, count 30, seconds 3; sid:5000004; rev:1;)
-alert ip any any -> $SIP_PROXY_IP $SIP_PROXY_PORTS (msg:"Excessive number of SIP 4xx Responses - possible user or password guessing attack"; pcre:"/^SIP\/2.0 4\d{2}"; threshold: type both, track by_src, count 100, seconds 60; sid:5000009; rev:1;)
-alert ip any any -> $SIP_PROXY_IP $SIP_PROXY_PORTS (msg:"Ghost call attack"; content:"SIP/2.0 180"; depth:11; threshold: type both, track by_src, count 100, seconds 60; sid:5000009; rev:1;)
diff --git a/config/snort/pfsense_rules/pfsense_rules.tar.gz.md5 b/config/snort/pfsense_rules/pfsense_rules.tar.gz.md5
new file mode 100644
index 00000000..97a55e1d
--- /dev/null
+++ b/config/snort/pfsense_rules/pfsense_rules.tar.gz.md5
@@ -0,0 +1 @@
+101 \ No newline at end of file
diff --git a/config/snort/pfsense_rules/rules/pfsense-voip.rules b/config/snort/pfsense_rules/rules/pfsense-voip.rules
new file mode 100644
index 00000000..3142c0b6
--- /dev/null
+++ b/config/snort/pfsense_rules/rules/pfsense-voip.rules
@@ -0,0 +1,11 @@
+alert ip any any -> $HOME_NET $SIP_PROXY_PORTS (msg:"OPTIONS SIP scan"; content:"OPTIONS"; depth:7; threshold: type both , track by_src, count 30, seconds 3; sid:5000004; rev:1;)
+# Excessive number of SIP 4xx Responses Does not work
+#### alert ip any any -> $SIP_PROXY_IP $SIP_PROXY_PORTS (msg:"Excessive number of SIP 4xx Responses - possible user or password guessing attack"; pcre:"/^SIP\/2.0 4\d{2}"; threshold: type both, track by_src, count 100, seconds 60; sid:5000008; rev:1;)
+alert ip any any -> $SIP_PROXY_IP $SIP_PROXY_PORTS (msg:"Ghost call attack"; content:"SIP/2.0 180"; depth:11; threshold: type both, track by_src, count 100, seconds 60; sid:5000009; rev:1;)
+
+# Rule for alerting of INVITE flood attack:
+alert ip any any -> $SIP_PROXY_IP $SIP_PROXY_PORTS (msg:"INVITE message flooding"; content:"INVITE"; depth:6; threshold: type both , track by_src, count 100, seconds 60; sid:5000002; rev:1;)
+# Rule for alerting of REGISTER flood attack:
+alert ip any any -> $SIP_PROXY_IP $SIP_PROXY_PORTS (msg:"REGISTER message flooding"; content:"REGISTER"; depth:8; threshold: type both , track by_src, count 100, seconds 60; sid:5000005; rev:1;)
+# Threshold rule for unauthorized responses:
+alert ip any any -> $SIP_PROXY_IP $SIP_PROXY_PORTS (msg:"INVITE message flooding"; content:"SIP/2.0 401 Unauthorized"; depth:24; threshold: type both, track by_src, count 100, seconds 60; sid:5000008; rev:1;)
diff --git a/config/snort/snort.inc b/config/snort/snort.inc
index 7c3b3622..750e1a7c 100755
--- a/config/snort/snort.inc
+++ b/config/snort/snort.inc
@@ -412,6 +412,7 @@ var POP_SERVERS \$HOME_NET
var IMAP_SERVERS \$HOME_NET
var RPC_SERVERS \$HOME_NET
var WWW_SERVERS \$HOME_NET
+var SIP_PROXY_IP \$HOME_NET
var AIM_SERVERS \
[64.12.24.0/23,64.12.28.0/23,64.12.161.0/24,64.12.163.0/24,64.12.200.0/24,205.188.3.0/24,205.188.5.0/24,205.188.7.0/24,205.188.9.0/24,205.188.153.0/24,205.188.179.0/24,205.188.248.0/24]
@@ -444,6 +445,7 @@ portvar SSH_PORTS {$ssh_port}
portvar TELNET_PORTS 23
portvar MAIL_PORTS [25,143,465,691]
portvar SSL_PORTS [25,443,465,636,993,995]
+portvar SIP_PROXY_PORTS [5060]
# DCERPC NCACN-IP-TCP
portvar DCERPC_NCACN_IP_TCP [139,445]
diff --git a/config/snort/snort_download_rules.php b/config/snort/snort_download_rules.php
index 077e8d72..cb3fdd87 100644
--- a/config/snort/snort_download_rules.php
+++ b/config/snort/snort_download_rules.php
@@ -34,6 +34,8 @@ $snort_filename_md5 = "snortrules-snapshot-2.8.tar.gz.md5";
$snort_filename = "snortrules-snapshot-2.8.tar.gz";
$emergingthreats_filename_md5 = "version.txt";
$emergingthreats_filename = "emerging.rules.tar.gz";
+$pfsense_rules_filename_md5 = "pfsense_rules.tar.gz.md5";
+$pfsense_rules_filename = "pfsense_rules.tar.gz";
require_once("guiconfig.inc");
require_once("functions.inc");
@@ -204,6 +206,20 @@ if ($emergingthreats_url_chk == on) {
update_status(gettext("Done. downloading md5"));
}
+/* download md5 sig from pfsense.org */
+if (file_exists("{$tmpfname}/{$pfsense_rules_filename_md5}")) {
+ update_status(gettext("md5 temp file exists..."));
+} else {
+ update_status(gettext("Downloading pfsense md5 file..."));
+ ini_set('user_agent','Mozilla/4.0 (compatible; MSIE 6.0)');
+ $image = @file_get_contents("http://www.pfsense.com/packages/config/snort/pfsense_rules/pfsense_rules.tar.gz.md5");
+// $image = @file_get_contents("http://www.mtest.local/pub-bin/oinkmaster.cgi/{$oinkid}/pfsense_rules.tar.gz.md5");
+ $f = fopen("{$tmpfname}/pfsense_rules.tar.gz.md5", 'w');
+ fwrite($f, $image);
+ fclose($f);
+ update_status(gettext("Done. downloading md5"));
+}
+
/* Time stamps define */
$last_md5_download = $config['installedpackages']['snort']['last_md5_download'];
$last_rules_install = $config['installedpackages']['snort']['last_rules_install'];
@@ -235,6 +251,18 @@ if (0 == filesize("{$tmpfname}/version.txt")){
}
}
+/* If pfsense md5 file is empty wait 15min exit */
+if (0 == filesize("{$tmpfname}/$pfsense_rules_filename_md5")){
+ update_status(gettext("Please wait... You may only check for New Pfsense Rules every 15 minutes..."));
+ update_output_window(gettext("Rules are released to support Pfsense packages."));
+ hide_progress_bar_status();
+ /* Display last time of sucsessful md5 check from cache */
+ echo "\n<p align=center><b>You last checked for updates: </b>{$last_md5_download}</p>\n";
+ echo "\n<p align=center><b>You last installed for rules: </b>{$last_rules_install}</p>\n";
+ echo "\n\n</body>\n</html>\n";
+ exit(0);
+}
+
/* Check if were up to date snort.org */
if (file_exists("{$snortdir}/snortrules-snapshot-2.8.tar.gz.md5")){
$md5_check_new_parse = file_get_contents("{$tmpfname}/{$snort_filename_md5}");
@@ -280,6 +308,17 @@ if ($emerg_md5_check_new == $emerg_md5_check_old) {
}
}
+/* Check if were up to date pfsense.org */
+if (file_exists("{$snortdir}/$pfsense_rules_filename_md5")){
+$pfsense_md5_check_new_parse = file_get_contents("{$tmpfname}/{$snort_filename_md5}");
+$pfsense_md5_check_new = `/bin/echo "{$pfsense_md5_check_new_parse}" | /usr/bin/awk '{ print $1 }'`;
+$pfsense_md5_check_old_parse = file_get_contents("{$snortdir}/{$snort_filename_md5}");
+$pfsense_md5_check_old = `/bin/echo "{$md5_check_old_parse}" | /usr/bin/awk '{ print $1 }'`;
+if ($pfsense_md5_check_new == $pfsense_md5_check_old) {
+ $pfsense_md5_check_ok = on;
+ }
+}
+
/* Make Clean Snort Directory emergingthreats not checked */
if ($snort_md5_check_ok == on && $emergingthreats_url_chk != on) {
update_status(gettext("Cleaning the snort Directory..."));
@@ -290,13 +329,13 @@ if ($snort_md5_check_ok == on && $emergingthreats_url_chk != on) {
}
/* Check if were up to date exits */
-if ($snort_md5_check_ok == on && $emerg_md5_check_chk_ok == on) {
+if ($snort_md5_check_ok == on && $emerg_md5_check_chk_ok == on && $pfsense_md5_check_ok == on) {
update_status(gettext("Your rules are up to date..."));
update_output_window(gettext("You may start Snort now..."));
exit(0);
}
-if ($snort_md5_check_ok == on && $emergingthreats_url_chk != on) {
+if ($snort_md5_check_ok == on && $pfsense_md5_check_ok == on && $emergingthreats_url_chk != on) {
update_status(gettext("Your rules are up to date..."));
update_output_window(gettext("You may start Snort now..."));
exit(0);
@@ -318,7 +357,7 @@ if (file_exists("{$tmpfname}/{$snort_filename}")) {
update_status(gettext("There is a new set of Snort rules posted. Downloading..."));
update_output_window(gettext("May take 4 to 10 min..."));
// download_file_with_progress_bar("http://www.mtest.local/pub-bin/oinkmaster.cgi/{$oinkid}/snortrules-snapshot-2.8{$premium_subscriber}.tar.gz", $tmpfname . "/{$snort_filename}", "read_body_firmware");
- download_file_with_progress_bar("http://dl.snort.org/{$premium_url}/snortrules-snapshot-2.8{$premium_subscriber}.tar.gz?oink_code={$oinkid}", $tmpfname . "/{$snort_filename}", "read_body_firmware");
+ download_file_with_progress_bar("http://dl.snort.org/{$premium_url}/snortrules-snapshot-2.8{$premium_subscriber}.tar.gz?oink_code={$oinkid}", $tmpfname . "/{$snort_filename}", "read_body_firmware");
update_all_status($static_output);
update_status(gettext("Done downloading rules file."));
}
@@ -340,6 +379,21 @@ if (file_exists("{$tmpfname}/{$emergingthreats_filename}")) {
}
}
+/* download pfsense rules file */
+if ($pfsense_md5_check_ok != on) {
+if (file_exists("{$tmpfname}/{$pfsense_rules_filename}")) {
+ update_status(gettext("Snortrule tar file exists..."));
+} else {
+ unhide_progress_bar_status();
+ update_status(gettext("There is a new set of Pfsense rules posted. Downloading..."));
+ update_output_window(gettext("May take 4 to 10 min..."));
+// download_file_with_progress_bar("http://www.mtest.local/pub-bin/oinkmaster.cgi/{$oinkid}/pfsense_rules.tar.gz", $tmpfname . "/{$pfsense_rules_filename}", "read_body_firmware");
+ download_file_with_progress_bar("http://www.pfsense.com/packages/config/snort/pfsense_rules/pfsense_rules.tar.gz", $tmpfname . "/{$pfsense_rules_filename}", "read_body_firmware");
+ update_all_status($static_output);
+ update_status(gettext("Done downloading rules file."));
+ }
+}
+
/* Compair md5 sig to file sig */
//$premium_url_chk = $config['installedpackages']['snort']['config'][0]['subscriber'];
@@ -409,10 +463,19 @@ if (file_exists("{$tmpfname}/{$emergingthreats_filename}")) {
}
}
+/* Untar Pfsense rules to tmp */
+if ($pfsense_md5_check_ok != on) {
+if (file_exists("{$tmpfname}/{$pfsense_rules_filename}")) {
+ update_status(gettext("Extracting Pfsense rules..."));
+ update_output_window(gettext("May take a while..."));
+ exec("/usr/bin/tar xzf {$tmpfname}/{$pfsense_rules_filename} -C {$tmpfname} rules/");
+ }
+}
+
/* Untar snort signatures */
if ($snort_md5_check_ok != on) {
if (file_exists("{$tmpfname}/{$snort_filename}")) {
-$signature_info_chk = $config['installedpackages']['snort']['config'][0]['signatureinfo'];
+$signature_info_chk = $config['installedpackages']['snortadvanced']['config'][0]['signatureinfo'];
if ($premium_url_chk == on) {
update_status(gettext("Extracting Signatures..."));
update_output_window(gettext("May take a while..."));
@@ -423,7 +486,7 @@ if ($premium_url_chk == on) {
}
/* Make Clean Snort Directory */
-if ($snort_md5_check_ok != on && $emerg_md5_check_chk_ok != on) {
+if ($snort_md5_check_ok != on && $emerg_md5_check_chk_ok != on && $pfsense_md5_check_ok != on) {
if (file_exists("{$snortdir}/rules")) {
update_status(gettext("Cleaning the snort Directory..."));
update_output_window(gettext("removing..."));
@@ -440,8 +503,8 @@ if (file_exists("{$snortdir}/rules")) {
}
}
-/* Copy snort rules and emergingthreats dir to snort dir */
-if ($snort_md5_check_ok != on || $emerg_md5_check_chk_ok != on) {
+/* Copy snort rules and emergingthreats and pfsense dir to snort dir */
+if ($snort_md5_check_ok != on || $emerg_md5_check_chk_ok != on || $pfsense_md5_check_ok != on) {
if (file_exists("{$tmpfname}/rules")) {
update_status(gettext("Copying rules..."));
update_output_window(gettext("May take a while..."));
@@ -483,6 +546,18 @@ if (file_exists("{$tmpfname}/$emergingthreats_filename_md5")) {
}
}
+/* Copy Pfsense md5 sig to snort dir */
+if ($pfsense_md5_check_ok != on) {
+if (file_exists("{$tmpfname}/$pfsense_rules_filename_md5")) {
+ update_status(gettext("Copying Pfsense md5 sig to snort directory..."));
+ exec("/bin/cp {$tmpfname}/$pfsense_rules_filename_md5 {$snortdir}/$pfsense_rules_filename_md5");
+} else {
+ update_status(gettext("The Pfsense md5 file does not exist..."));
+ update_output_window(gettext("Error copping config..."));
+ exit(0);
+ }
+}
+
/* Copy configs to snort dir */
if ($snort_md5_check_ok != on) {
if (file_exists("{$tmpfname}/etc/Makefile.am")) {