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RESPONSE-953-DATA-LEAKAGES-PHP.conf
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RESPONSE-953-DATA-LEAKAGES-PHP.conf
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# ------------------------------------------------------------------------
# OWASP CRS ver.4.0.0
# Copyright (c) 2006-2020 Trustwave and contributors. All rights reserved.
# Copyright (c) 2021-2024 CRS project. All rights reserved.
#
# The OWASP CRS 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:DETECTION_PARANOIA_LEVEL "@lt 1" "id:953011,phase:3,pass,nolog,skipAfter:END-RESPONSE-953-DATA-LEAKAGES-PHP"
SecRule TX:DETECTION_PARANOIA_LEVEL "@lt 1" "id:953012,phase:4,pass,nolog,skipAfter:END-RESPONSE-953-DATA-LEAKAGES-PHP"
#
# -= Paranoia Level 1 (default) =- (apply only when tx.detection_paranoia_level is sufficiently high: 1 or higher)
#
#
# -=[ PHP Error Message Leakage ]=-
#
SecRule RESPONSE_BODY "@pmFromFile php-errors.data" \
"id:953100,\
phase:4,\
block,\
capture,\
t:none,\
msg:'PHP Information Leakage',\
logdata:'Matched Data: %{TX.0} found within %{MATCHED_VAR_NAME}',\
tag:'application-multi',\
tag:'language-php',\
tag:'platform-multi',\
tag:'attack-disclosure',\
tag:'paranoia-level/1',\
tag:'OWASP_CRS',\
tag:'capec/1000/118/116',\
tag:'PCI/6.5.6',\
ver:'OWASP_CRS/4.0.0',\
severity:'ERROR',\
setvar:'tx.outbound_anomaly_score_pl1=+%{tx.error_anomaly_score}'"
#
# -=[ PHP source code leakage ]=-
#
# Detect some common PHP keywords in output.
#
SecRule RESPONSE_BODY "@rx (?:\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" \
"id:953110,\
phase:4,\
block,\
capture,\
t:none,\
msg:'PHP source code leakage',\
logdata:'Matched Data: %{TX.0} found within %{MATCHED_VAR_NAME}',\
tag:'application-multi',\
tag:'language-php',\
tag:'platform-multi',\
tag:'attack-disclosure',\
tag:'paranoia-level/1',\
tag:'OWASP_CRS',\
tag:'capec/1000/118/116',\
tag:'PCI/6.5.6',\
ver:'OWASP_CRS/4.0.0',\
severity:'ERROR',\
setvar:'tx.outbound_anomaly_score_pl1=+%{tx.error_anomaly_score}'"
# Detect the presence of the PHP open tag "<? ", "<?= " or "<?php " in output.
#
# To prevent false positives (due to the short "<?" sequences), we also include,
# the space after it in an attempt to stop alerts in binary output.
# And we make it case insensitive.
#
SecRule RESPONSE_BODY "@rx (?i)<\?(?:=|php)?\s+" \
"id:953120,\
phase:4,\
block,\
capture,\
t:none,\
msg:'PHP source code leakage',\
logdata:'Matched Data: %{TX.0} found within %{MATCHED_VAR_NAME}',\
tag:'application-multi',\
tag:'language-php',\
tag:'platform-multi',\
tag:'attack-disclosure',\
tag:'paranoia-level/1',\
tag:'OWASP_CRS',\
tag:'capec/1000/118/116',\
tag:'PCI/6.5.6',\
ver:'OWASP_CRS/4.0.0',\
severity:'ERROR',\
setvar:'tx.outbound_anomaly_score_pl1=+%{tx.error_anomaly_score}'"
SecRule TX:DETECTION_PARANOIA_LEVEL "@lt 2" "id:953013,phase:3,pass,nolog,skipAfter:END-RESPONSE-953-DATA-LEAKAGES-PHP"
SecRule TX:DETECTION_PARANOIA_LEVEL "@lt 2" "id:953014,phase:4,pass,nolog,skipAfter:END-RESPONSE-953-DATA-LEAKAGES-PHP"
#
# -= Paranoia Level 2 =- (apply only when tx.detection_paranoia_level is sufficiently high: 2 or higher)
#
#
# -=[ PHP Error Message Leakage ]=-
#
# This is a stricter sibling of rule 953100.
# This stricter sibling checks for additional error messages which has a higher chance to appear in common language.
#
SecRule RESPONSE_BODY "@pmFromFile php-errors-pl2.data" \
"id:953101,\
phase:4,\
block,\
capture,\
t:none,\
msg:'PHP Information Leakage',\
logdata:'Matched Data: %{TX.0} found within %{MATCHED_VAR_NAME}',\
tag:'application-multi',\
tag:'language-php',\
tag:'platform-multi',\
tag:'attack-disclosure',\
tag:'paranoia-level/2',\
tag:'OWASP_CRS',\
tag:'capec/1000/118/116',\
tag:'PCI/6.5.6',\
ver:'OWASP_CRS/4.0.0',\
severity:'ERROR',\
setvar:'tx.outbound_anomaly_score_pl2=+%{tx.error_anomaly_score}'"
SecRule TX:DETECTION_PARANOIA_LEVEL "@lt 3" "id:953015,phase:3,pass,nolog,skipAfter:END-RESPONSE-953-DATA-LEAKAGES-PHP"
SecRule TX:DETECTION_PARANOIA_LEVEL "@lt 3" "id:953016,phase:4,pass,nolog,skipAfter:END-RESPONSE-953-DATA-LEAKAGES-PHP"
#
# -= Paranoia Level 3 =- (apply only when tx.detection_paranoia_level is sufficiently high: 3 or higher)
#
SecRule TX:DETECTION_PARANOIA_LEVEL "@lt 4" "id:953017,phase:3,pass,nolog,skipAfter:END-RESPONSE-953-DATA-LEAKAGES-PHP"
SecRule TX:DETECTION_PARANOIA_LEVEL "@lt 4" "id:953018,phase:4,pass,nolog,skipAfter:END-RESPONSE-953-DATA-LEAKAGES-PHP"
#
# -= Paranoia Level 4 =- (apply only when tx.detection_paranoia_level is sufficiently high: 4 or higher)
#
#
# -= Paranoia Levels Finished =-
#
SecMarker "END-RESPONSE-953-DATA-LEAKAGES-PHP"