# ---------------------------------------------------------------
# Core ModSecurity Rule Set ver.2.2.8
# Copyright (C) 2006-2012 Trustwave All rights reserved.
#
# The OWASP ModSecurity Core Rule Set is distributed under 
# Apache Software License (ASL) version 2
# Please see the enclosed LICENCE file for full details.
# ---------------------------------------------------------------


# 
#      This ruleset file contains rules that are highly prone to FPs
#      Enable PARANOID_MODE in the 10 config file if you want to activate this rule	
#
 
#
# Directory Traversal
#
SecRule REQUEST_URI|REQUEST_BODY|REQUEST_HEADERS|XML:/*|!REQUEST_HEADERS:Referer "(?i)(?:\x5c|(?:%(?:2(?:5(?:2f|5c)|%46|f)|c(?:0%(?:9v|af)|1%1c)|u(?:221[56]|002f)|%32(?:%46|F)|e0%80%af|1u|5c)|\/))(?:%(?:2(?:(?:52)?e|%45)|(?:e0%8|c)0%ae|u(?:002e|2024)|%32(?:%45|E))|\.){2}(?:\x5c|(?:%(?:2(?:5(?:2f|5c)|%46|f)|c(?:0%(?:9v|af)|1%1c)|u(?:221[56]|002f)|%32(?:%46|F)|e0%80%af|1u|5c)|\/))" \
        	"phase:2,rev:'2',ver:'OWASP_CRS/2.2.8',maturity:'9',accuracy:'7',t:none,ctl:auditLogParts=+E,block,msg:'Path Traversal Attack',id:'950103',severity:'2',logdata:'Matched Data: %{TX.0} found within %{MATCHED_VAR_NAME}: %{MATCHED_VAR}',t:none,capture,tag:'OWASP_CRS/WEB_ATTACK/DIR_TRAVERSAL',setvar:'tx.msg=%{rule.msg}',setvar:tx.anomaly_score=+%{tx.critical_anomaly_score},setvar:'tx.%{rule.id}-OWASP_CRS/WEB_ATTACK/DIR_TRAVERSAL-%{matched_var_name}=%{matched_var}'"

# Weaker signature
#SecRule REQUEST_FILENAME "\.\.[/\x5c]" "phase:1,rev:'2.2.8',t:none,t:urlDecodeUni,capture,ctl:auditLogParts=+E,block,msg:'Path Traversal Attack',id:'950103',severity:'2',setvar:'tx.msg=%{rule.msg}',setvar:tx.anomaly_score=+%{tx.critical_anomaly_score},setvar:'tx.%{rule.id}-WEB_ATTACK/DIR_TRAVERSAL-%{matched_var_name}=%{matched_var}'"