File: RESPONSE-953-DATA-LEAKAGES-PHP.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.
# ------------------------------------------------------------------------

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



SecRule TX:PARANOIA_LEVEL "@lt 1" "phase:3,id:953011,nolog,pass,skipAfter:END-RESPONSE-953-DATA-LEAKAGES-PHP"
SecRule TX:PARANOIA_LEVEL "@lt 1" "phase:4,id:953012,nolog,pass,skipAfter:END-RESPONSE-953-DATA-LEAKAGES-PHP"
#
# -= Paranoia Level 1 (default) =- (apply only when tx.paranoia_level is sufficiently high: 1 or higher)
#

#
# -=[ PHP Error Message Leakage ]=-
#
SecRule RESPONSE_BODY "@pmf php-errors.data" \
	"msg:'PHP Information Leakage',\
	id:953100,\
	phase:response,\
	ver:'OWASP_CRS/3.0.0',\
	rev:'3',\
	maturity:'9',\
	accuracy:'9',\
	t:none,\
	capture,\
	ctl:auditLogParts=+E,\
	block,\
	severity:'ERROR',\
	logdata:'Matched Data: %{TX.0} found within %{MATCHED_VAR_NAME}: %{MATCHED_VAR}',\
        tag:'application-multi',\
        tag:'language-php',\
        tag:'platform-multi',\
        tag:'attack-disclosure',\
	tag:'OWASP_CRS/LEAKAGE/ERRORS_PHP',\
	tag:'WASCTC/WASC-13',\
	tag:'OWASP_TOP_10/A6',\
	tag:'PCI/6.5.6',\
	setvar:'tx.msg=%{rule.msg}',\
	setvar:tx.outbound_anomaly_score=+%{tx.error_anomaly_score},\
	setvar:tx.anomaly_score=+%{tx.error_anomaly_score},setvar:tx.%{rule.id}-OWASP_CRS/LEAKAGE/ERRORS-%{matched_var_name}=%{tx.0}"

#
# -=[ PHP source code leakage ]=-
#
# Detect some common PHP keywords in output.
#
SecRule RESPONSE_BODY "(?:\b(?:f(?:tp_(?:nb_)?f?(?:ge|pu)t|get(?:s?s|c)|scanf|write|open|read)|gz(?:(?:encod|writ)e|compress|open|read)|s(?:ession_start|candir)|read(?:(?:gz)?file|dir)|move_uploaded_file|(?:proc_|bz)open|call_user_func)|\$_(?:(?:pos|ge)t|session))\b" \
	"phase:response,\
	rev:'2',\
	ver:'OWASP_CRS/3.0.0',\
	maturity:'9',\
	accuracy:'9',\
	t:none,\
	capture,\
	ctl:auditLogParts=+E,\
	block,\
	msg:'PHP source code leakage',\
	logdata:'Matched Data: %{TX.0} found within %{MATCHED_VAR_NAME}: %{MATCHED_VAR}',\
	id:953110,\
        tag:'application-multi',\
        tag:'language-php',\
        tag:'platform-multi',\
        tag:'attack-disclosure',\
	tag:'OWASP_CRS/LEAKAGE/SOURCE_CODE_PHP',\
	tag:'WASCTC/WASC-13',\
	tag:'OWASP_TOP_10/A6',\
	tag:'PCI/6.5.6',\
	severity:'ERROR',\
	setvar:'tx.msg=%{rule.msg}',\
	setvar:tx.outbound_anomaly_score=+%{tx.error_anomaly_score},\
	setvar:tx.anomaly_score=+%{tx.error_anomaly_score},\
	setvar:tx.%{rule.id}-OWASP_CRS/LEAKAGE/SOURCE_CODE-%{matched_var_name}=%{tx.0}"

# Detect the presence of the PHP open tag "<?" or "<?php" in output.
#
# To prevent false positives due to the short "<?" sequence, an attempt
# is made to stop alerts in binary output. This is done by detecting
# some common binary file format headers, such as gzip (\x1f\x8b\x08),
# png (IHDR), mp3 (ID3), movie formats et cetera.
#
SecRule RESPONSE_BODY "<\?(?!xml)" \
	"phase:response,\
	rev:'2',\
	ver:'OWASP_CRS/3.0.0',\
	maturity:'9',\
	accuracy:'9',\
	chain,\
	t:none,\
	capture,\
	ctl:auditLogParts=+E,\
	block,\
	msg:'PHP source code leakage',\
	logdata:'Matched Data: %{TX.0} found within %{MATCHED_VAR_NAME}: %{MATCHED_VAR}',\
	id:953120,\
        tag:'application-multi',\
        tag:'language-php',\
        tag:'platform-multi',\
        tag:'attack-disclosure',\
	tag:'OWASP_CRS/LEAKAGE/SOURCE_CODE_PHP',\
	tag:'WASCTC/WASC-13',\
	tag:'OWASP_TOP_10/A6',\
	tag:'PCI/6.5.6',severity:'ERROR'"
		SecRule RESPONSE_BODY "!(?:\x1f\x8b\x08|\b(?:(?:i(?:nterplay|hdr|d3)|m(?:ovi|thd)|r(?:ar!|iff)|(?:ex|jf)if|f(?:lv|ws)|varg|cws)\b|gif)|B(?:%pdf|\.ra)\b)" \
			"t:none,\
			capture,\
			setvar:'tx.msg=%{rule.msg}',\
			setvar:tx.outbound_anomaly_score=+%{tx.error_anomaly_score},\
			setvar:tx.anomaly_score=+%{tx.error_anomaly_score},\
			setvar:tx.%{rule.id}-OWASP_CRS/LEAKAGE/SOURCE_CODE-%{matched_var_name}=%{tx.0}"


SecRule TX:PARANOIA_LEVEL "@lt 2" "phase:3,id:953013,nolog,pass,skipAfter:END-RESPONSE-953-DATA-LEAKAGES-PHP"
SecRule TX:PARANOIA_LEVEL "@lt 2" "phase:4,id:953014,nolog,pass,skipAfter:END-RESPONSE-953-DATA-LEAKAGES-PHP"
#
# -= Paranoia Level 2 =- (apply only when tx.paranoia_level is sufficiently high: 2 or higher)
#



SecRule TX:PARANOIA_LEVEL "@lt 3" "phase:3,id:953015,nolog,pass,skipAfter:END-RESPONSE-953-DATA-LEAKAGES-PHP"
SecRule TX:PARANOIA_LEVEL "@lt 3" "phase:4,id:953016,nolog,pass,skipAfter:END-RESPONSE-953-DATA-LEAKAGES-PHP"
#
# -= Paranoia Level 3 =- (apply only when tx.paranoia_level is sufficiently high: 3 or higher)
#



SecRule TX:PARANOIA_LEVEL "@lt 4" "phase:3,id:953017,nolog,pass,skipAfter:END-RESPONSE-953-DATA-LEAKAGES-PHP"
SecRule TX:PARANOIA_LEVEL "@lt 4" "phase:4,id:953018,nolog,pass,skipAfter:END-RESPONSE-953-DATA-LEAKAGES-PHP"
#
# -= Paranoia Level 4 =- (apply only when tx.paranoia_level is sufficiently high: 4 or higher)
#



#
# -= Paranoia Levels Finished =-
#
SecMarker "END-RESPONSE-953-DATA-LEAKAGES-PHP"