95 lines
3.8 KiB
Plaintext
95 lines
3.8 KiB
Plaintext
# ------------------------------------------------------------------------
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# OWASP ModSecurity Core Rule Set ver.3.2.0
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# Copyright (c) 2006-2019 Trustwave and contributors. 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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SecRule TX:EXECUTING_PARANOIA_LEVEL "@lt 1" "id:934011,phase:1,pass,nolog,skipAfter:END-REQUEST-934-APPLICATION-ATTACK-NODEJS"
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SecRule TX:EXECUTING_PARANOIA_LEVEL "@lt 1" "id:934012,phase:2,pass,nolog,skipAfter:END-REQUEST-934-APPLICATION-ATTACK-NODEJS"
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#
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# -= Paranoia Level 1 (default) =- (apply only when tx.executing_paranoia_level is sufficiently high: 1 or higher)
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#
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# [ Insecure unserialization / generic RCE signatures ]
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#
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# Libraries performing insecure unserialization:
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# - node-serialize: _$$ND_FUNC$$_ (CVE-2017-5941)
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# - funcster: __js_function
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#
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# See:
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# https://opsecx.com/index.php/2017/02/08/exploiting-node-js-deserialization-bug-for-remote-code-execution/
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# https://www.acunetix.com/blog/web-security-zone/deserialization-vulnerabilities-attacking-deserialization-in-js/
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#
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# Some generic snippets used:
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# - function() {
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# - new Function(
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# - eval(
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# - String.fromCharCode(
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#
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# Last two are used by nodejsshell.py,
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# https://github.com/ajinabraham/Node.Js-Security-Course/blob/master/nodejsshell.py
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#
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# As base64 is sometimes (but not always) used to encode serialized values,
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# use multiMatch and t:base64decode.
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#
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# Regexp generated from util/regexp-assemble/regexp-934100.data using Regexp::Assemble.
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# See https://coreruleset.org/20190826/optimizing-regular-expressions/ for usage.
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SecRule REQUEST_COOKIES|!REQUEST_COOKIES:/__utm/|REQUEST_COOKIES_NAMES|ARGS_NAMES|ARGS|XML:/* "@rx (?:(?:_(?:\$\$ND_FUNC\$\$_|_js_function)|(?:new\s+Function|\beval)\s*\(|String\s*\.\s*fromCharCode|function\s*\(\s*\)\s*{|this\.constructor)|module\.exports\s*=)" \
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"id:934100,\
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phase:2,\
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block,\
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capture,\
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t:none,t:urlDecodeUni,t:base64Decode,\
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msg:'Node.js Injection Attack',\
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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-javascript',\
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tag:'platform-multi',\
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tag:'attack-rce',\
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tag:'attack-injection-nodejs',\
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tag:'OWASP_CRS/WEB_ATTACK/NODEJS_INJECTION',\
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tag:'OWASP_TOP_10/A1',\
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ctl:auditLogParts=+E,\
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ver:'OWASP_CRS/3.2.0',\
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severity:'CRITICAL',\
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multiMatch,\
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setvar:'tx.rce_score=+%{tx.critical_anomaly_score}',\
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setvar:'tx.anomaly_score_pl1=+%{tx.critical_anomaly_score}'"
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SecRule TX:EXECUTING_PARANOIA_LEVEL "@lt 2" "id:934013,phase:1,pass,nolog,skipAfter:END-REQUEST-934-APPLICATION-ATTACK-NODEJS"
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SecRule TX:EXECUTING_PARANOIA_LEVEL "@lt 2" "id:934014,phase:2,pass,nolog,skipAfter:END-REQUEST-934-APPLICATION-ATTACK-NODEJS"
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#
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# -= Paranoia Level 2 =- (apply only when tx.executing_paranoia_level is sufficiently high: 2 or higher)
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#
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SecRule TX:EXECUTING_PARANOIA_LEVEL "@lt 3" "id:934015,phase:1,pass,nolog,skipAfter:END-REQUEST-934-APPLICATION-ATTACK-NODEJS"
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SecRule TX:EXECUTING_PARANOIA_LEVEL "@lt 3" "id:934016,phase:2,pass,nolog,skipAfter:END-REQUEST-934-APPLICATION-ATTACK-NODEJS"
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#
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# -= Paranoia Level 3 =- (apply only when tx.executing_paranoia_level is sufficiently high: 3 or higher)
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#
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SecRule TX:EXECUTING_PARANOIA_LEVEL "@lt 4" "id:934017,phase:1,pass,nolog,skipAfter:END-REQUEST-934-APPLICATION-ATTACK-NODEJS"
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SecRule TX:EXECUTING_PARANOIA_LEVEL "@lt 4" "id:934018,phase:2,pass,nolog,skipAfter:END-REQUEST-934-APPLICATION-ATTACK-NODEJS"
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#
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# -= Paranoia Level 4 =- (apply only when tx.executing_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-934-APPLICATION-ATTACK-NODEJS"
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