View file File name : REQUEST-913-SCANNER-DETECTION.conf Content :# ------------------------------------------------------------------------ # OWASP CRS ver.4.7.0-dev # 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:913011,phase:1,pass,nolog,tag:'OWASP_CRS',ver:'OWASP_CRS/4.7.0-dev',skipAfter:END-REQUEST-913-SCANNER-DETECTION" SecRule TX:DETECTION_PARANOIA_LEVEL "@lt 1" "id:913012,phase:2,pass,nolog,tag:'OWASP_CRS',ver:'OWASP_CRS/4.7.0-dev',skipAfter:END-REQUEST-913-SCANNER-DETECTION" # # -= Paranoia Level 1 (default) =- (apply only when tx.detection_paranoia_level is sufficiently high: 1 or higher) # # # -=[ Security Scanner Checks ]=- # # This rule inspects the default User-Agent and Header values sent by # various commercial and open source scanners, mostly # security / vulnerability scanners. # # It is based on a curated list of known malicious scanners in widespread use. # This list is maintained in scanners-user-agents.data. # # With CRSv4, the project has given up on keeping track of different categories # of scanners and scripting agents, mostly because it's very hard to draw # a line between benign, mostly benign and malicious. And because dedicated # attackers will change the user agent anyways. SecRule REQUEST_HEADERS:User-Agent "@pmFromFile scanners-user-agents.data" \ "id:913100,\ phase:1,\ block,\ capture,\ t:none,\ msg:'Found User-Agent associated with security scanner',\ logdata:'Matched Data: %{TX.0} found within %{MATCHED_VAR_NAME}: %{MATCHED_VAR}',\ tag:'application-multi',\ tag:'language-multi',\ tag:'platform-multi',\ tag:'attack-reputation-scanner',\ tag:'paranoia-level/1',\ tag:'OWASP_CRS',\ tag:'capec/1000/118/224/541/310',\ tag:'PCI/6.5.10',\ ver:'OWASP_CRS/4.7.0-dev',\ severity:'CRITICAL',\ setvar:'tx.inbound_anomaly_score_pl1=+%{tx.critical_anomaly_score}'" SecRule TX:DETECTION_PARANOIA_LEVEL "@lt 2" "id:913013,phase:1,pass,nolog,tag:'OWASP_CRS',ver:'OWASP_CRS/4.7.0-dev',skipAfter:END-REQUEST-913-SCANNER-DETECTION" SecRule TX:DETECTION_PARANOIA_LEVEL "@lt 2" "id:913014,phase:2,pass,nolog,tag:'OWASP_CRS',ver:'OWASP_CRS/4.7.0-dev',skipAfter:END-REQUEST-913-SCANNER-DETECTION" # # -= Paranoia Level 2 =- (apply only when tx.detection_paranoia_level is sufficiently high: 2 or higher) # SecRule TX:DETECTION_PARANOIA_LEVEL "@lt 3" "id:913015,phase:1,pass,nolog,tag:'OWASP_CRS',ver:'OWASP_CRS/4.7.0-dev',skipAfter:END-REQUEST-913-SCANNER-DETECTION" SecRule TX:DETECTION_PARANOIA_LEVEL "@lt 3" "id:913016,phase:2,pass,nolog,tag:'OWASP_CRS',ver:'OWASP_CRS/4.7.0-dev',skipAfter:END-REQUEST-913-SCANNER-DETECTION" # # -= Paranoia Level 3 =- (apply only when tx.detection_paranoia_level is sufficiently high: 3 or higher) # SecRule TX:DETECTION_PARANOIA_LEVEL "@lt 4" "id:913017,phase:1,pass,nolog,tag:'OWASP_CRS',ver:'OWASP_CRS/4.7.0-dev',skipAfter:END-REQUEST-913-SCANNER-DETECTION" SecRule TX:DETECTION_PARANOIA_LEVEL "@lt 4" "id:913018,phase:2,pass,nolog,tag:'OWASP_CRS',ver:'OWASP_CRS/4.7.0-dev',skipAfter:END-REQUEST-913-SCANNER-DETECTION" # # -= Paranoia Level 4 =- (apply only when tx.detection_paranoia_level is sufficiently high: 4 or higher) # # # -= Paranoia Levels Finished =- # SecMarker "END-REQUEST-913-SCANNER-DETECTION"