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Filename :
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"