. * Copyright (C) 2003-2004 Manuel Kasper . * Copyright (C) 2006 Scott Ullrich * Copyright (C) 2009 Robert Zelaya Sr. Developer * Copyright (C) 2012 Ermal Luci * All rights reserved. * * Adapted for Suricata by: * Copyright (C) 2014 Bill Meeks * 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. */ require_once("guiconfig.inc"); require_once("/usr/local/pkg/suricata/suricata.inc"); global $g, $rebuild_rules; $suricatadir = SURICATADIR; $flowbit_rules_file = FLOWBITS_FILENAME; // Array of default events rules for Suricata $default_rules = array( "decoder-events.rules", "files.rules", "http-events.rules", "smtp-events.rules", "stream-events.rules", "tls-events.rules" ); if (!is_array($config['installedpackages']['suricata']['rule'])) { $config['installedpackages']['suricata']['rule'] = array(); } $a_nat = &$config['installedpackages']['suricata']['rule']; if (isset($_POST['id']) && is_numericint($_POST['id'])) $id = $_POST['id']; elseif (isset($_GET['id']) && is_numericint($_GET['id'])) $id = htmlspecialchars($_GET['id']); if (is_null($id)) $id = 0; if (isset($id) && $a_nat[$id]) { $pconfig['enable'] = $a_nat[$id]['enable']; $pconfig['interface'] = $a_nat[$id]['interface']; $pconfig['rulesets'] = $a_nat[$id]['rulesets']; $pconfig['autoflowbitrules'] = $a_nat[$id]['autoflowbitrules']; $pconfig['ips_policy_enable'] = $a_nat[$id]['ips_policy_enable']; $pconfig['ips_policy'] = $a_nat[$id]['ips_policy']; } $if_real = get_real_interface($pconfig['interface']); $suricata_uuid = $a_nat[$id]['uuid']; $snortdownload = $config['installedpackages']['suricata']['config'][0]['enable_vrt_rules'] == 'on' ? 'on' : 'off'; $emergingdownload = $config['installedpackages']['suricata']['config'][0]['enable_etopen_rules'] == 'on' ? 'on' : 'off'; $etpro = $config['installedpackages']['suricata']['config'][0]['enable_etpro_rules'] == 'on' ? 'on' : 'off'; $snortcommunitydownload = $config['installedpackages']['suricata']['config'][0]['snortcommunityrules'] == 'on' ? 'on' : 'off'; $no_emerging_files = false; $no_snort_files = false; /* Test rule categories currently downloaded to $SURICATADIR/rules and set appropriate flags */ if ($emergingdownload == 'on') { $test = glob("{$suricatadir}rules/" . ET_OPEN_FILE_PREFIX . "*.rules"); $et_type = "ET Open"; } elseif ($etpro == 'on') { $test = glob("{$suricatadir}rules/" . ET_PRO_FILE_PREFIX . "*.rules"); $et_type = "ET Pro"; } else $et_type = "Emerging Threats"; if (empty($test)) $no_emerging_files = true; $test = glob("{$suricatadir}rules/" . VRT_FILE_PREFIX . "*.rules"); if (empty($test)) $no_snort_files = true; if (!file_exists("{$suricatadir}rules/" . GPL_FILE_PREFIX . "community.rules")) $no_community_files = true; if (($snortdownload != 'on') || ($a_nat[$id]['ips_policy_enable'] != 'on')) $policy_select_disable = "disabled"; // If a Snort VRT policy is enabled and selected, remove all Snort VRT // rules from the configured rule sets to allow automatic selection. if ($a_nat[$id]['ips_policy_enable'] == 'on') { if (isset($a_nat[$id]['ips_policy'])) { $disable_vrt_rules = "disabled"; $enabled_sets = explode("||", $a_nat[$id]['rulesets']); foreach ($enabled_sets as $k => $v) { if (substr($v, 0, 6) == "suricata_") unset($enabled_sets[$k]); } $a_nat[$id]['rulesets'] = implode("||", $enabled_sets); } } else $disable_vrt_rules = ""; if ($_POST["save"]) { if ($_POST['ips_policy_enable'] == "on") { $a_nat[$id]['ips_policy_enable'] = 'on'; $a_nat[$id]['ips_policy'] = $_POST['ips_policy']; } else { $a_nat[$id]['ips_policy_enable'] = 'off'; unset($a_nat[$id]['ips_policy']); } // Always start with the default events and files rules $enabled_items = implode("||", $default_rules); if (is_array($_POST['toenable'])) $enabled_items .= "||" . implode("||", $_POST['toenable']); else $enabled_items .= "||{$_POST['toenable']}"; $a_nat[$id]['rulesets'] = $enabled_items; if ($_POST['autoflowbits'] == "on") $a_nat[$id]['autoflowbitrules'] = 'on'; else { $a_nat[$id]['autoflowbitrules'] = 'off'; if (file_exists("{$suricatadir}suricata_{$suricata_uuid}_{$if_real}/rules/{$flowbit_rules_file}")) @unlink("{$suricatadir}suricata_{$suricata_uuid}_{$if_real}/rules/{$flowbit_rules_file}"); } write_config(); /*************************************************/ /* Update the suricata.yaml file and rebuild the */ /* rules for this interface. */ /*************************************************/ $rebuild_rules = true; suricata_generate_yaml($a_nat[$id]); $rebuild_rules = false; /* Signal Suricata to "live reload" the rules */ suricata_reload_config($a_nat[$id]); } elseif ($_POST['unselectall']) { // Remove all but the default events and files rules $a_nat[$id]['rulesets'] = implode("||", $default_rules); if ($_POST['ips_policy_enable'] == "on") { $a_nat[$id]['ips_policy_enable'] = 'on'; $a_nat[$id]['ips_policy'] = $_POST['ips_policy']; } else { $a_nat[$id]['ips_policy_enable'] = 'off'; unset($a_nat[$id]['ips_policy']); } write_config(); sync_suricata_package_config(); } elseif ($_POST['selectall']) { // Start with the required default events and files rules $rulesets = $default_rules; if ($_POST['ips_policy_enable'] == "on") { $a_nat[$id]['ips_policy_enable'] = 'on'; $a_nat[$id]['ips_policy'] = $_POST['ips_policy']; } else { $a_nat[$id]['ips_policy_enable'] = 'off'; unset($a_nat[$id]['ips_policy']); } if ($emergingdownload == 'on') { $files = glob("{$suricatadir}rules/" . ET_OPEN_FILE_PREFIX . "*.rules"); foreach ($files as $file) $rulesets[] = basename($file); } elseif ($etpro == 'on') { $files = glob("{$suricatadir}rules/" . ET_PRO_FILE_PREFIX . "*.rules"); foreach ($files as $file) $rulesets[] = basename($file); } if ($snortcommunitydownload == 'on') { $files = glob("{$suricatadir}rules/" . GPL_FILE_PREFIX . "community.rules"); foreach ($files as $file) $rulesets[] = basename($file); } /* Include the Snort VRT rules only if enabled and no IPS policy is set */ if ($snortdownload == 'on' && $a_nat[$id]['ips_policy_enable'] == 'off') { $files = glob("{$suricatadir}rules/" . VRT_FILE_PREFIX . "*.rules"); foreach ($files as $file) $rulesets[] = basename($file); } $a_nat[$id]['rulesets'] = implode("||", $rulesets); write_config(); sync_suricata_package_config(); } // See if we have any Auto-Flowbit rules and enable // the VIEW button if we do. if ($a_nat[$id]['autoflowbitrules'] == 'on') { if (file_exists("{$suricatadir}suricata_{$suricata_uuid}_{$if_real}/rules/{$flowbit_rules_file}") && filesize("{$suricatadir}suricata_{$suricata_uuid}_{$if_real}/rules/{$flowbit_rules_file}") > 0) { $btn_view_flowb_rules = " title=\"" . gettext("View flowbit-required rules") . "\""; } else $btn_view_flowb_rules = " disabled"; } else $btn_view_flowb_rules = " disabled"; $enabled_rulesets_array = explode("||", $a_nat[$id]['rulesets']); $if_friendly = convert_friendly_interface_to_friendly_descr($pconfig['interface']); $pgtitle = gettext("Suricata IDS: Interface {$if_friendly} - Categories"); include_once("head.inc"); ?>
'; echo '
'; $menu_iface=($if_friendly?substr($if_friendly,0,5)." ":"Iface "); $tab_array = array(); $tab_array[] = array($menu_iface . gettext("Settings"), false, "/suricata/suricata_interfaces_edit.php?id={$id}"); $tab_array[] = array($menu_iface . gettext("Categories"), true, "/suricata/suricata_rulesets.php?id={$id}"); $tab_array[] = array($menu_iface . gettext("Rules"), false, "/suricata/suricata_rules.php?id={$id}"); $tab_array[] = array($menu_iface . gettext("Flow/Stream"), false, "/suricata/suricata_flow_stream.php?id={$id}"); $tab_array[] = array($menu_iface . gettext("App Parsers"), false, "/suricata/suricata_app_parsers.php?id={$id}"); $tab_array[] = array($menu_iface . gettext("Variables"), false, "/suricata/suricata_define_vars.php?id={$id}"); $tab_array[] = array($menu_iface . gettext("Barnyard2"), false, "/suricata/suricata_barnyard.php?id={$id}"); display_top_tabs($tab_array, true); ?>

',$suricatadir,''); ?>

' . gettext("Updates") . '' . gettext(" tab to download the rules configured on the ") . '' . gettext("Global") . '' . gettext(" tab."); ?>
\n"; if (!empty($emergingrules[$j])) { $file = $emergingrules[$j]; echo "\n"; echo "\n"; } else echo "\n"; if (!empty($snortrules[$j])) { $file = $snortrules[$j]; echo "\n"; echo "\n"; } else echo "\n"; echo "\n"; } ?>

/>   
 
/>   
  " . gettext("Note: ") . "" . gettext("Auto-enabled rules generating unwanted alerts should have their GID:SID added to the Suppression List for the interface."); ?>

onClick="enable_change()"/>  
  " . gettext("Note: ") . "" . gettext("You must be using the Snort VRT rules to use this option."); ?>
  
 

"/> "/> "/>
/>
"; if(is_array($enabled_rulesets_array)) { if(in_array($file, $enabled_rulesets_array)) $CHECKED = " checked=\"checked\""; else $CHECKED = ""; } else $CHECKED = ""; echo " \n\n"; echo "\n"; if (empty($CHECKED)) echo $file; else echo "{$file}\n"; echo "
"; if(is_array($enabled_rulesets_array)) { if (!empty($disable_vrt_rules)) $CHECKED = $disable_vrt_rules; elseif(in_array($file, $enabled_rulesets_array)) $CHECKED = " checked=\"checked\""; else $CHECKED = ""; } else $CHECKED = ""; echo " \n\n"; echo "\n"; if (empty($CHECKED) || $CHECKED == "disabled") echo $file; else echo "{$file}\n"; echo "
 
"/>