<!-- @(#) $Id: vpn_concentrator_rules.xml,v 1.5 2010/03/04 20:12:33 dcid Exp $
  -
  -  Official Cisco VPN Concentrator rules for OSSEC.
  -
  -  Copyright (C) 2009 Trend Micro Inc.
  -  All rights reserved.
  -
  -  This program is a free software; you can redistribute it
  -  and/or modify it under the terms of the GNU General Public
  -  License (version 2) as published by the FSF - Free Software
  -  Foundation.
  -
  -  License details: http://www.ossec.net/en/licensing.html
  -->
  

<!-- For more info:
  - http://www.ossec.net/wiki/index.php/Cisco_VPN_Concentrator
  -->


<group name="syslog,cisco_vpn,">
  <rule id="14200" level="0">
    <decoded_as>cisco-vpn-concentrator</decoded_as>
    <description>Grouping of Cisco VPN concentrator rules</description>
  </rule>

  <rule id="14201" level="3">
    <if_sid>14200</if_sid>
    <id>^IKE/52$</id>
    <description>VPN authentication successful.</description>
    <group>authentication_success,</group>
  </rule>

  <rule id="14202" level="5">
    <if_sid>14200</if_sid>
    <id>^AUTH/5$|^AUTH/9$|^IKE/167$|^PPP/9$|^SSH/33$|^PSH/23$</id>
    <description>VPN authentication failed.</description>
    <group>authentication_failed,</group>
  </rule>
  
  <rule id="14203" level="4">
    <if_sid>14200</if_sid>
    <id>^HTTP/47$|^SSH/16$</id>
    <options>alert_by_email</options>
    <description>VPN Admin authentication successful.</description>
    <group>authentication_success,</group>
  </rule>
  
  <rule id="14251" level="10" frequency="8" timeframe="240">
    <if_matched_sid>14202</if_matched_sid>
    <same_source_ip />
    <description>Multiple VPN authentication failures.</description>
    <group>authentication_failures,</group>
  </rule>
</group> <!-- SYSLOG,vpn_concentrator -->


<!-- EOF -->