# ------------------------------------------------------------------------
# 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"