File: REQUEST-931-APPLICATION-ATTACK-RFI.conf

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# ------------------------------------------------------------------------
# OWASP ModSecurity Core Rule Set ver.3.0.2
# Copyright (c) 2006-2016 Trustwave and contributors. All rights reserved.
#
# The OWASP ModSecurity Core Rule Set is distributed under
# Apache Software License (ASL) version 2
# Please see the enclosed LICENSE file for full details.
# ------------------------------------------------------------------------
#
# RFI Attacks
#

#
# -= Paranoia Level 0 (empty) =- (apply unconditionally)
#



SecRule TX:PARANOIA_LEVEL "@lt 1" "phase:1,id:931011,nolog,pass,skipAfter:END-REQUEST-931-APPLICATION-ATTACK-RFI"
SecRule TX:PARANOIA_LEVEL "@lt 1" "phase:2,id:931012,nolog,pass,skipAfter:END-REQUEST-931-APPLICATION-ATTACK-RFI"
#
# -= Paranoia Level 1 (default) =- (apply only when tx.paranoia_level is sufficiently high: 1 or higher)
#

# -=[ Rule Logic ]=-
# These rules look for common types of Remote File Inclusion (RFI) attack methods.
#	- URL Contains an IP Address
#	- The PHP "include()" Function
#	- RFI Data Ends with Question Mark(s) (?)
#	- RFI Host Doesn't Match Local Host
#
# -=[ References ]=-
# http://projects.webappsec.org/Remote-File-Inclusion
# http://tacticalwebappsec.blogspot.com/2009/06/generic-remote-file-inclusion-attack.html
#
SecRule ARGS "^(?i)(?:file|ftps?|https?):\/\/(\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3})" \
	"msg:'Possible Remote File Inclusion (RFI) Attack: URL Parameter using IP Address',\
	severity:CRITICAL,\
	phase:request,\
	id:931100, \
	rev:'2',\
	ver:'OWASP_CRS/3.0.0',\
	maturity:'9',\
	accuracy:'9',\
	t:none,\
	capture,\
	ctl:auditLogParts=+E,\
	block,\
	logdata:'Matched Data: %{TX.0} found within %{MATCHED_VAR_NAME}: %{MATCHED_VAR}',\
	tag:'application-multi',\
	tag:'language-multi',\
	tag:'platform-multi',\
	tag:'attack-rfi',\
	tag:'OWASP_CRS/WEB_ATTACK/RFI',\
	setvar:'tx.msg=%{rule.msg}',\
	setvar:tx.rfi_score=+%{tx.critical_anomaly_score},\
	setvar:tx.anomaly_score=+%{tx.critical_anomaly_score},\
	setvar:tx.%{rule.id}-OWASP_CRS/WEB_ATTACK/RFI-%{matched_var_name}=%{tx.0}"

SecRule QUERY_STRING|REQUEST_BODY "(?i:(\binclude\s*\([^)]*|mosConfig_absolute_path|_CONF\[path\]|_SERVER\[DOCUMENT_ROOT\]|GALLERY_BASEDIR|path\[docroot\]|appserv_root|config\[root_dir\])=(file|ftps?|https?):\/\/)" \
	"phase:request,\
	rev:'3',\
	ver:'OWASP_CRS/3.0.0',\
	maturity:'9',\
	accuracy:'9',\
	t:none,t:urlDecodeUni,\
	capture,\
	ctl:auditLogParts=+E,\
	block,\
	msg:'Possible Remote File Inclusion (RFI) Attack: Common RFI Vulnerable Parameter Name used w/URL Payload',\
	logdata:'Matched Data: %{TX.0} found within %{MATCHED_VAR_NAME}: %{MATCHED_VAR}',\
	id:931110,\
	severity:'CRITICAL',\
        tag:'application-multi',\
        tag:'language-multi',\
        tag:'platform-multi',\
        tag:'attack-rfi',\
	tag:'OWASP_CRS/WEB_ATTACK/RFI',\
	setvar:'tx.msg=%{rule.msg}',\
	setvar:tx.rfi_score=+%{tx.critical_anomaly_score},\
	setvar:tx.anomaly_score=+%{tx.critical_anomaly_score},\
	setvar:tx.%{rule.id}-OWASP_CRS/WEB_ATTACK/RFI-%{matched_var_name}=%{tx.0}"

SecRule ARGS "^(?i)(?:file|ftps?|https?)(.*?)\?+$" \
	"phase:request,\
	rev:'2',\
	ver:'OWASP_CRS/3.0.0',\
	maturity:'9',\
	accuracy:'9',\
	t:none,\
	capture,\
	ctl:auditLogParts=+E,\
	block,\
	msg:'Possible Remote File Inclusion (RFI) Attack: URL Payload Used w/Trailing Question Mark Character (?)',\
	logdata:'Matched Data: %{TX.0} found within %{MATCHED_VAR_NAME}: %{MATCHED_VAR}',\
	id:931120,\
	severity:'CRITICAL',\
        tag:'application-multi',\
        tag:'language-multi',\
        tag:'platform-multi',\
        tag:'attack-rfi',\
	tag:'OWASP_CRS/WEB_ATTACK/RFI',\
	setvar:'tx.msg=%{rule.msg}',\
	setvar:tx.rfi_score=+%{tx.critical_anomaly_score},\
	setvar:tx.anomaly_score=+%{tx.critical_anomaly_score},\
	setvar:tx.%{rule.id}-OWASP_CRS/WEB_ATTACK/RFI-%{matched_var_name}=%{tx.0}"



SecRule TX:PARANOIA_LEVEL "@lt 2" "phase:1,id:931013,nolog,pass,skipAfter:END-REQUEST-931-APPLICATION-ATTACK-RFI"
SecRule TX:PARANOIA_LEVEL "@lt 2" "phase:2,id:931014,nolog,pass,skipAfter:END-REQUEST-931-APPLICATION-ATTACK-RFI"
#
# -= Paranoia Level 2 =- (apply only when tx.paranoia_level is sufficiently high: 2 or higher)
#

SecRule ARGS "^(?i)(?:file|ftps?|https?)://(.*)$" \
	"chain,\
	phase:request,\
	rev:'3',\
	ver:'OWASP_CRS/3.0.0',\
	maturity:'9',\
	accuracy:'9',\
	t:none,\
	capture,\
	ctl:auditLogParts=+E,\
	block,\
	msg:'Possible Remote File Inclusion (RFI) Attack: Off-Domain Reference/Link',\
	logdata:'Matched Data: %{TX.0} found within %{MATCHED_VAR_NAME}: %{MATCHED_VAR}',\
	id:931130,\
	severity:'CRITICAL',\
        tag:'application-multi',\
        tag:'language-multi',\
        tag:'platform-multi',\
        tag:'attack-rfi',\
	tag:'OWASP_CRS/WEB_ATTACK/RFI',\
	tag:'paranoia-level/2'"
        	SecRule TX:1 "!@beginsWith %{request_headers.host}" \
			"setvar:'tx.msg=%{rule.msg}',\
			setvar:tx.rfi_score=+%{tx.critical_anomaly_score},\
			setvar:tx.anomaly_score=+%{tx.critical_anomaly_score},\
			setvar:tx.%{rule.id}-OWASP_CRS/WEB_ATTACK/RFI-%{matched_var_name}=%{tx.1}"



SecRule TX:PARANOIA_LEVEL "@lt 3" "phase:1,id:931015,nolog,pass,skipAfter:END-REQUEST-931-APPLICATION-ATTACK-RFI"
SecRule TX:PARANOIA_LEVEL "@lt 3" "phase:2,id:931016,nolog,pass,skipAfter:END-REQUEST-931-APPLICATION-ATTACK-RFI"
#
# -= Paranoia Level 3 =- (apply only when tx.paranoia_level is sufficiently high: 3 or higher)
#



SecRule TX:PARANOIA_LEVEL "@lt 4" "phase:1,id:931017,nolog,pass,skipAfter:END-REQUEST-931-APPLICATION-ATTACK-RFI"
SecRule TX:PARANOIA_LEVEL "@lt 4" "phase:2,id:931018,nolog,pass,skipAfter:END-REQUEST-931-APPLICATION-ATTACK-RFI"
#
# -= Paranoia Level 4 =- (apply only when tx.paranoia_level is sufficiently high: 4 or higher)
#



#
# -= Paranoia Levels Finished =-
#
SecMarker "END-REQUEST-931-APPLICATION-ATTACK-RFI"