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222 lines
6.7 KiB
Plaintext
222 lines
6.7 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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# -= Paranoia Level 0 (empty) =- (apply unconditionally)
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#
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# Summing up the blocking and detection anomaly scores in phase 1
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# even when early blocking is disabled, we need to sum up the scores in phase 1
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# this prevents bugs in phase 5 if Apache skips phases because of error handling
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# See: https://github.com/coreruleset/coreruleset/issues/2319#issuecomment-1047503932
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SecRule TX:BLOCKING_PARANOIA_LEVEL "@ge 1" \
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"id:949052,\
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phase:1,\
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pass,\
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t:none,\
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nolog,\
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setvar:'tx.blocking_inbound_anomaly_score=+%{tx.inbound_anomaly_score_pl1}'"
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SecRule TX:DETECTION_PARANOIA_LEVEL "@ge 1" \
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"id:949152,\
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phase:1,\
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pass,\
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t:none,\
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nolog,\
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setvar:'tx.detection_inbound_anomaly_score=+%{tx.inbound_anomaly_score_pl1}'"
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SecRule TX:BLOCKING_PARANOIA_LEVEL "@ge 2" \
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"id:949053,\
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phase:1,\
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pass,\
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t:none,\
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nolog,\
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setvar:'tx.blocking_inbound_anomaly_score=+%{tx.inbound_anomaly_score_pl2}'"
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SecRule TX:DETECTION_PARANOIA_LEVEL "@ge 2" \
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"id:949153,\
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phase:1,\
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pass,\
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t:none,\
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nolog,\
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setvar:'tx.detection_inbound_anomaly_score=+%{tx.inbound_anomaly_score_pl2}'"
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SecRule TX:BLOCKING_PARANOIA_LEVEL "@ge 3" \
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"id:949054,\
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phase:1,\
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pass,\
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t:none,\
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nolog,\
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setvar:'tx.blocking_inbound_anomaly_score=+%{tx.inbound_anomaly_score_pl3}'"
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SecRule TX:DETECTION_PARANOIA_LEVEL "@ge 3" \
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"id:949154,\
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phase:1,\
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pass,\
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t:none,\
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nolog,\
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setvar:'tx.detection_inbound_anomaly_score=+%{tx.inbound_anomaly_score_pl3}'"
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SecRule TX:BLOCKING_PARANOIA_LEVEL "@ge 4" \
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"id:949055,\
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phase:1,\
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pass,\
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t:none,\
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nolog,\
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setvar:'tx.blocking_inbound_anomaly_score=+%{tx.inbound_anomaly_score_pl4}'"
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SecRule TX:DETECTION_PARANOIA_LEVEL "@ge 4" \
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"id:949155,\
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phase:1,\
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pass,\
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t:none,\
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nolog,\
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setvar:'tx.detection_inbound_anomaly_score=+%{tx.inbound_anomaly_score_pl4}'"
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# at start of phase 2, we reset the aggregate scores to 0 to prevent duplicate counting of per-PL scores
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# this is necessary because the per-PL scores are counted across phases
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SecAction "id:949059,\
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phase:2,\
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pass,\
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t:none,\
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nolog,\
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setvar:'tx.blocking_inbound_anomaly_score=0'"
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SecAction "id:949159,\
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phase:2,\
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pass,\
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t:none,\
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nolog,\
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setvar:'tx.detection_inbound_anomaly_score=0'"
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# Summing up the blocking and detection anomaly scores in phase 2
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SecRule TX:BLOCKING_PARANOIA_LEVEL "@ge 1" \
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"id:949060,\
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phase:2,\
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pass,\
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t:none,\
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nolog,\
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setvar:'tx.blocking_inbound_anomaly_score=+%{tx.inbound_anomaly_score_pl1}'"
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SecRule TX:DETECTION_PARANOIA_LEVEL "@ge 1" \
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"id:949160,\
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phase:2,\
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pass,\
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t:none,\
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nolog,\
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setvar:'tx.detection_inbound_anomaly_score=+%{tx.inbound_anomaly_score_pl1}'"
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SecRule TX:BLOCKING_PARANOIA_LEVEL "@ge 2" \
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"id:949061,\
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phase:2,\
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pass,\
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t:none,\
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nolog,\
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setvar:'tx.blocking_inbound_anomaly_score=+%{tx.inbound_anomaly_score_pl2}'"
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SecRule TX:DETECTION_PARANOIA_LEVEL "@ge 2" \
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"id:949161,\
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phase:2,\
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pass,\
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t:none,\
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nolog,\
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setvar:'tx.detection_inbound_anomaly_score=+%{tx.inbound_anomaly_score_pl2}'"
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SecRule TX:BLOCKING_PARANOIA_LEVEL "@ge 3" \
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"id:949062,\
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phase:2,\
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pass,\
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t:none,\
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nolog,\
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setvar:'tx.blocking_inbound_anomaly_score=+%{tx.inbound_anomaly_score_pl3}'"
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SecRule TX:DETECTION_PARANOIA_LEVEL "@ge 3" \
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"id:949162,\
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phase:2,\
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pass,\
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t:none,\
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nolog,\
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setvar:'tx.detection_inbound_anomaly_score=+%{tx.inbound_anomaly_score_pl3}'"
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SecRule TX:BLOCKING_PARANOIA_LEVEL "@ge 4" \
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"id:949063,\
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phase:2,\
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pass,\
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t:none,\
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nolog,\
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setvar:'tx.blocking_inbound_anomaly_score=+%{tx.inbound_anomaly_score_pl4}'"
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SecRule TX:DETECTION_PARANOIA_LEVEL "@ge 4" \
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"id:949163,\
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phase:2,\
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pass,\
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t:none,\
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nolog,\
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setvar:'tx.detection_inbound_anomaly_score=+%{tx.inbound_anomaly_score_pl4}'"
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SecMarker "BEGIN-REQUEST-BLOCKING-EVAL"
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#
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# -=[ Anomaly Mode: Overall Transaction Anomaly Score ]=-
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#
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# if early blocking is active, check threshold in phase 1
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SecRule TX:BLOCKING_INBOUND_ANOMALY_SCORE "@ge %{tx.inbound_anomaly_score_threshold}" \
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"id:949111,\
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phase:1,\
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deny,\
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t:none,\
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msg:'Inbound Anomaly Score Exceeded in phase 1 (Total Score: %{TX.BLOCKING_INBOUND_ANOMALY_SCORE})',\
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tag:'anomaly-evaluation',\
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ver:'OWASP_CRS/4.0.0-rc1',\
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chain"
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SecRule TX:EARLY_BLOCKING "@eq 1"
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# always check threshold in phase 2
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SecRule TX:BLOCKING_INBOUND_ANOMALY_SCORE "@ge %{tx.inbound_anomaly_score_threshold}" \
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"id:949110,\
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phase:2,\
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deny,\
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t:none,\
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msg:'Inbound Anomaly Score Exceeded (Total Score: %{TX.BLOCKING_INBOUND_ANOMALY_SCORE})',\
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tag:'anomaly-evaluation',\
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ver:'OWASP_CRS/4.0.0-rc1'"
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SecRule TX:DETECTION_PARANOIA_LEVEL "@lt 1" "id:949011,phase:1,pass,nolog,skipAfter:END-REQUEST-949-BLOCKING-EVALUATION"
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SecRule TX:DETECTION_PARANOIA_LEVEL "@lt 1" "id:949012,phase:2,pass,nolog,skipAfter:END-REQUEST-949-BLOCKING-EVALUATION"
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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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SecRule TX:DETECTION_PARANOIA_LEVEL "@lt 2" "id:949013,phase:1,pass,nolog,skipAfter:END-REQUEST-949-BLOCKING-EVALUATION"
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SecRule TX:DETECTION_PARANOIA_LEVEL "@lt 2" "id:949014,phase:2,pass,nolog,skipAfter:END-REQUEST-949-BLOCKING-EVALUATION"
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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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SecRule TX:DETECTION_PARANOIA_LEVEL "@lt 3" "id:949015,phase:1,pass,nolog,skipAfter:END-REQUEST-949-BLOCKING-EVALUATION"
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SecRule TX:DETECTION_PARANOIA_LEVEL "@lt 3" "id:949016,phase:2,pass,nolog,skipAfter:END-REQUEST-949-BLOCKING-EVALUATION"
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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:949017,phase:1,pass,nolog,skipAfter:END-REQUEST-949-BLOCKING-EVALUATION"
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SecRule TX:DETECTION_PARANOIA_LEVEL "@lt 4" "id:949018,phase:2,pass,nolog,skipAfter:END-REQUEST-949-BLOCKING-EVALUATION"
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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-949-BLOCKING-EVALUATION"
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