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190 lines
8.4 KiB
Plaintext
190 lines
8.4 KiB
Plaintext
# ------------------------------------------------------------------------
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# OWASP ModSecurity Core Rule Set ver.4.0.0-rc1
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# Copyright (c) 2006-2020 Trustwave and contributors. All rights reserved.
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# Copyright (c) 2021-2022 Core Rule Set project. All rights reserved.
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#
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# The OWASP ModSecurity Core Rule Set is distributed under
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# Apache Software License (ASL) version 2
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# Please see the enclosed LICENSE file for full details.
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# ------------------------------------------------------------------------
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#
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# RFI Attacks
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#
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#
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# -= Paranoia Level 0 (empty) =- (apply unconditionally)
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#
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SecRule TX:DETECTION_PARANOIA_LEVEL "@lt 1" "id:931011,phase:1,pass,nolog,skipAfter:END-REQUEST-931-APPLICATION-ATTACK-RFI"
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SecRule TX:DETECTION_PARANOIA_LEVEL "@lt 1" "id:931012,phase:2,pass,nolog,skipAfter:END-REQUEST-931-APPLICATION-ATTACK-RFI"
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#
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# -= Paranoia Level 1 (default) =- (apply only when tx.detection_paranoia_level is sufficiently high: 1 or higher)
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#
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# -=[ Rule Logic ]=-
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# These rules look for common types of Remote File Inclusion (RFI) attack methods.
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# - URL Contains an IP Address
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# - The PHP "include()" Function
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# - RFI Data Ends with Question Mark(s) (?)
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# - RFI Host Doesn't Match Local Host
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#
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# -=[ References ]=-
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# http://projects.webappsec.org/Remote-File-Inclusion
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# http://tacticalwebappsec.blogspot.com/2009/06/generic-remote-file-inclusion-attack.html
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#
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SecRule ARGS "@rx ^(?i:file|ftps?|https?)://(?:\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3})" \
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"id:931100,\
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phase:2,\
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block,\
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capture,\
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t:none,\
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msg:'Possible Remote File Inclusion (RFI) Attack: URL Parameter using IP Address',\
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logdata:'Matched Data: %{TX.0} found within %{MATCHED_VAR_NAME}: %{MATCHED_VAR}',\
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tag:'application-multi',\
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tag:'language-multi',\
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tag:'platform-multi',\
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tag:'attack-rfi',\
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tag:'paranoia-level/1',\
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tag:'OWASP_CRS',\
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tag:'capec/1000/152/175/253',\
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ver:'OWASP_CRS/4.0.0-rc1',\
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severity:'CRITICAL',\
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setvar:'tx.rfi_score=+%{tx.critical_anomaly_score}',\
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setvar:'tx.inbound_anomaly_score_pl1=+%{tx.critical_anomaly_score}'"
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SecRule QUERY_STRING|REQUEST_BODY "@rx (?i)(?:\binclude\s*\([^)]*|mosConfig_absolute_path|_CONF\[path\]|_SERVER\[DOCUMENT_ROOT\]|GALLERY_BASEDIR|path\[docroot\]|appserv_root|config\[root_dir\])=(?:file|ftps?|https?)://" \
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"id:931110,\
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phase:2,\
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block,\
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capture,\
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t:none,t:urlDecodeUni,\
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msg:'Possible Remote File Inclusion (RFI) Attack: Common RFI Vulnerable Parameter Name used w/URL Payload',\
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logdata:'Matched Data: %{TX.0} found within %{MATCHED_VAR_NAME}: %{MATCHED_VAR}',\
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tag:'application-multi',\
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tag:'language-multi',\
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tag:'platform-multi',\
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tag:'attack-rfi',\
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tag:'paranoia-level/1',\
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tag:'OWASP_CRS',\
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tag:'capec/1000/152/175/253',\
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ver:'OWASP_CRS/4.0.0-rc1',\
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severity:'CRITICAL',\
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setvar:'tx.rfi_score=+%{tx.critical_anomaly_score}',\
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setvar:'tx.inbound_anomaly_score_pl1=+%{tx.critical_anomaly_score}'"
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SecRule ARGS "@rx ^(?i:file|ftps?|https?).*?\?+$" \
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"id:931120,\
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phase:2,\
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block,\
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capture,\
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t:none,\
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msg:'Possible Remote File Inclusion (RFI) Attack: URL Payload Used w/Trailing Question Mark Character (?)',\
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logdata:'Matched Data: %{TX.0} found within %{MATCHED_VAR_NAME}: %{MATCHED_VAR}',\
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tag:'application-multi',\
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tag:'language-multi',\
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tag:'platform-multi',\
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tag:'attack-rfi',\
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tag:'paranoia-level/1',\
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tag:'OWASP_CRS',\
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tag:'capec/1000/152/175/253',\
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ver:'OWASP_CRS/4.0.0-rc1',\
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severity:'CRITICAL',\
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setvar:'tx.rfi_score=+%{tx.critical_anomaly_score}',\
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setvar:'tx.inbound_anomaly_score_pl1=+%{tx.critical_anomaly_score}'"
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SecRule TX:DETECTION_PARANOIA_LEVEL "@lt 2" "id:931013,phase:1,pass,nolog,skipAfter:END-REQUEST-931-APPLICATION-ATTACK-RFI"
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SecRule TX:DETECTION_PARANOIA_LEVEL "@lt 2" "id:931014,phase:2,pass,nolog,skipAfter:END-REQUEST-931-APPLICATION-ATTACK-RFI"
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#
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# -= Paranoia Level 2 =- (apply only when tx.detection_paranoia_level is sufficiently high: 2 or higher)
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#
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# url:file:// can be used by Java applications using
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# org.apache.commons.io.IOUtils to access internal files, so this has been added
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#
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# This rule has one (stricter) sibling: 931131.
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# That rule applies the same regular expression to the request filename in phase 1.
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#
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# Regular expression generated from regex-assembly/931130.ra.
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# To update the regular expression run the following shell script
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# (consult https://coreruleset.org/docs/development/regex_assembly/ for details):
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# crs-toolchain regex update 931130
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#
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SecRule ARGS "@rx (?i)(?:(?:url|jar):)?(?:a(?:cap|f[ps]|ttachment)|b(?:eshare|itcoin|lob)|c(?:a(?:llto|p)|id|vs|ompress.(?:zlib|bzip2))|d(?:a(?:v|ta)|ict|n(?:s|tp))|e(?:d2k|xpect)|f(?:(?:ee)?d|i(?:le|nger|sh)|tps?)|g(?:it|o(?:pher)?|lob)|h(?:323|ttps?)|i(?:ax|cap|(?:ma|p)ps?|rc[6s]?)|ja(?:bbe)?r|l(?:dap[is]?|ocal_file)|m(?:a(?:ilto|ven)|ms|umble)|n(?:e(?:tdoc|ws)|fs|ntps?)|ogg|p(?:aparazzi|h(?:ar|p)|op(?:2|3s?)|r(?:es|oxy)|syc)|r(?:mi|sync|tm(?:f?p)?|ar)|s(?:3|ftp|ips?|m(?:[bs]|tps?)|n(?:ews|mp)|sh(?:2(?:.(?:s(?:hell|(?:ft|c)p)|exec|tunnel))?)?|vn(?:\+ssh)?)|t(?:e(?:amspeak|lnet)|ftp|urns?)|u(?:dp|nreal|t2004)|v(?:entrilo|iew-source|nc)|w(?:ebcal|ss?)|x(?:mpp|ri)|zip)://(?:[^@]+@)?([^/]*)" \
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"id:931130,\
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phase:2,\
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block,\
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capture,\
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t:none,\
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msg:'Possible Remote File Inclusion (RFI) Attack: Off-Domain Reference/Link',\
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logdata:'Matched Data: %{TX.0} found within %{MATCHED_VAR_NAME}: %{MATCHED_VAR}',\
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tag:'application-multi',\
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tag:'language-multi',\
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tag:'platform-multi',\
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tag:'attack-rfi',\
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tag:'OWASP_CRS',\
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tag:'capec/1000/152/175/253',\
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tag:'paranoia-level/2',\
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ver:'OWASP_CRS/4.0.0-rc1',\
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severity:'CRITICAL',\
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setvar:'tx.rfi_parameter_%{MATCHED_VAR_NAME}=.%{tx.1}',\
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chain"
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SecRule TX:/rfi_parameter_.*/ "!@endsWith .%{request_headers.host}" \
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"setvar:'tx.rfi_score=+%{tx.critical_anomaly_score}',\
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setvar:'tx.inbound_anomaly_score_pl2=+%{tx.critical_anomaly_score}'"
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# This is a (stricter) sibling of 931130.
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#
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# Regular expression generated from regex-assembly/931131.ra.
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# To update the regular expression run the following shell script
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# (consult https://coreruleset.org/docs/development/regex_assembly/ for details):
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# crs-toolchain regex update 931131
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#
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SecRule REQUEST_FILENAME "@rx (?i)(?:(?:url|jar):)?(?:a(?:cap|f[ps]|ttachment)|b(?:eshare|itcoin|lob)|c(?:a(?:llto|p)|id|vs|ompress.(?:zlib|bzip2))|d(?:a(?:v|ta)|ict|n(?:s|tp))|e(?:d2k|xpect)|f(?:(?:ee)?d|i(?:le|nger|sh)|tps?)|g(?:it|o(?:pher)?|lob)|h(?:323|ttps?)|i(?:ax|cap|(?:ma|p)ps?|rc[6s]?)|ja(?:bbe)?r|l(?:dap[is]?|ocal_file)|m(?:a(?:ilto|ven)|ms|umble)|n(?:e(?:tdoc|ws)|fs|ntps?)|ogg|p(?:aparazzi|h(?:ar|p)|op(?:2|3s?)|r(?:es|oxy)|syc)|r(?:mi|sync|tm(?:f?p)?|ar)|s(?:3|ftp|ips?|m(?:[bs]|tps?)|n(?:ews|mp)|sh(?:2(?:.(?:s(?:hell|(?:ft|c)p)|exec|tunnel))?)?|vn(?:\+ssh)?)|t(?:e(?:amspeak|lnet)|ftp|urns?)|u(?:dp|nreal|t2004)|v(?:entrilo|iew-source|nc)|w(?:ebcal|ss?)|x(?:mpp|ri)|zip)://(?:[^@]+@)?([^/]*)" \
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"id:931131,\
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phase:1,\
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block,\
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capture,\
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t:none,t:urlDecodeUni,\
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msg:'Possible Remote File Inclusion (RFI) Attack: Off-Domain Reference/Link',\
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logdata:'Matched Data: %{TX.0} found within %{MATCHED_VAR_NAME}: %{MATCHED_VAR}',\
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tag:'application-multi',\
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tag:'language-multi',\
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tag:'platform-multi',\
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tag:'attack-rfi',\
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tag:'OWASP_CRS',\
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tag:'capec/1000/152/175/253',\
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tag:'paranoia-level/2',\
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ver:'OWASP_CRS/4.0.0-rc1',\
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severity:'CRITICAL',\
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setvar:'tx.rfi_parameter_%{MATCHED_VAR_NAME}=.%{tx.1}',\
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chain"
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SecRule TX:/rfi_parameter_.*/ "!@endsWith .%{request_headers.host}" \
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"setvar:'tx.rfi_score=+%{tx.critical_anomaly_score}',\
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setvar:'tx.inbound_anomaly_score_pl2=+%{tx.critical_anomaly_score}'"
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SecRule TX:DETECTION_PARANOIA_LEVEL "@lt 3" "id:931015,phase:1,pass,nolog,skipAfter:END-REQUEST-931-APPLICATION-ATTACK-RFI"
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SecRule TX:DETECTION_PARANOIA_LEVEL "@lt 3" "id:931016,phase:2,pass,nolog,skipAfter:END-REQUEST-931-APPLICATION-ATTACK-RFI"
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#
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# -= Paranoia Level 3 =- (apply only when tx.detection_paranoia_level is sufficiently high: 3 or higher)
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#
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SecRule TX:DETECTION_PARANOIA_LEVEL "@lt 4" "id:931017,phase:1,pass,nolog,skipAfter:END-REQUEST-931-APPLICATION-ATTACK-RFI"
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SecRule TX:DETECTION_PARANOIA_LEVEL "@lt 4" "id:931018,phase:2,pass,nolog,skipAfter:END-REQUEST-931-APPLICATION-ATTACK-RFI"
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#
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# -= Paranoia Level 4 =- (apply only when tx.detection_paranoia_level is sufficiently high: 4 or higher)
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#
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#
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# -= Paranoia Levels Finished =-
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#
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SecMarker "END-REQUEST-931-APPLICATION-ATTACK-RFI"
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