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Edit File: modsecurity_crs_10_config.conf

# --------------------------------------------------------------- # Core ModSecurity Rule Set ver.2.2.9 # Copyright (C) 2006-2012 Trustwave All rights reserved. # # The OWASP ModSecurity Core Rule Set is distributed under # Apache Software License (ASL) version 2 # Please see the enclosed LICENCE file for full details. # --------------------------------------------------------------- # # -- [[ Recommended Base Configuration ]] ------------------------------------------------- # # The configuration directives/settings in this file are used to control # the OWASP ModSecurity CRS. These settings do **NOT** configure the main # ModSecurity settings such as: # # - SecRuleEngine # - SecRequestBodyAccess # - SecAuditEngine # - SecDebugLog # # You should use the modsecurity.conf-recommended file that comes with the # ModSecurity source code archive. # # Ref: https://github.com/SpiderLabs/ModSecurity/blob/master/modsecurity.conf-recommended # # # -- [[ Rule Version ]] ------------------------------------------------------------------- # # Rule version data is added to the "Producer" line of Section H of the Audit log: # # - Producer: ModSecurity for Apache/2.7.0-rc1 (http://www.modsecurity.org/); OWASP_CRS/2.2.4. # # Ref: https://github.com/SpiderLabs/ModSecurity/wiki/Reference-Manual#wiki-SecComponentSignature # SecComponentSignature "OWASP_CRS/2.2.9" # # -- [[ Modes of Operation: Self-Contained vs. Collaborative Detection ]] ----------------- # # Each detection rule uses the "block" action which will inherit the SecDefaultAction # specified below. Your settings here will determine which mode of operation you use. # # -- [[ Self-Contained Mode ]] -- # Rules inherit the "deny" disruptive action. The first rule that matches will block. # # -- [[ Collaborative Detection Mode ]] -- # This is a "delayed blocking" mode of operation where each matching rule will inherit # the "pass" action and will only contribute to anomaly scores. Transactional blocking # can be applied # # -- [[ Alert Logging Control ]] -- # You have three options - # # - To log to both the Apache error_log and ModSecurity audit_log file use: "log" # - To log *only* to the ModSecurity audit_log file use: "nolog,auditlog" # - To log *only* to the Apache error_log file use: "log,noauditlog" # # Ref: http://blog.spiderlabs.com/2010/11/advanced-topic-of-the-week-traditional-vs-anomaly-scoring-detection-modes.html # Ref: https://github.com/SpiderLabs/ModSecurity/wiki/Reference-Manual#wiki-SecDefaultAction # SecDefaultAction "phase:1,deny,log" SecDefaultAction "phase:2,deny,log" # # -- [[ Collaborative Detection Severity Levels ]] ---------------------------------------- # # These are the default scoring points for each severity level. You may # adjust these to you liking. These settings will be used in macro expansion # in the rules to increment the anomaly scores when rules match. # # These are the default Severity ratings (with anomaly scores) of the individual rules - # # - 2: Critical - Anomaly Score of 5. # Is the highest severity level possible without correlation. It is # normally generated by the web attack rules (40 level files). # - 3: Error - Anomaly Score of 4. # Is generated mostly from outbound leakage rules (50 level files). # - 4: Warning - Anomaly Score of 3. # Is generated by malicious client rules (35 level files). # - 5: Notice - Anomaly Score of 2. # Is generated by the Protocol policy and anomaly files. # SecAction \ "id:'900001', \ phase:1, \ t:none, \ setvar:tx.critical_anomaly_score=5, \ setvar:tx.error_anomaly_score=4, \ setvar:tx.warning_anomaly_score=3, \ setvar:tx.notice_anomaly_score=2, \ nolog, \ pass" # # -- [[ Collaborative Detection Scoring Initialization and Threshold Levels ]] ------------------------------ # # These variables are used in macro expansion in the 49 inbound blocking and 59 # outbound blocking files. # # **MUST HAVE** ModSecurity v2.5.12 or higher to use macro expansion in numeric # operators. If you have an earlier version, edit the 49/59 files directly to # set the appropriate anomaly score levels. # # You should set the score level (rule 900003) to the proper threshold you # would prefer. If set to "5" it will work similarly to previous Mod CRS rules # and will create an event in the error_log file if there are any rules that # match. If you would like to lessen the number of events generated in the # error_log file, you should increase the anomaly score threshold to something # like "20". This would only generate an event in the error_log file if there # are multiple lower severity rule matches or if any 1 higher severity item matches. # SecAction \ "id:'900002', \ phase:1, \ t:none, \ setvar:tx.anomaly_score=0, \ setvar:tx.sql_injection_score=0, \ setvar:tx.xss_score=0, \ setvar:tx.inbound_anomaly_score=0, \ setvar:tx.outbound_anomaly_score=0, \ nolog, \ pass" SecAction \ "id:'900003', \ phase:1, \ t:none, \ setvar:tx.inbound_anomaly_score_level=5, \ setvar:tx.outbound_anomaly_score_level=4, \ nolog, \ pass" # # -- [[ Collaborative Detection Blocking ]] ----------------------------------------------- # # This is a collaborative detection mode where each rule will increment an overall # anomaly score for the transaction. The scores are then evaluated in the following files: # # Inbound anomaly score - checked in the modsecurity_crs_49_inbound_blocking.conf file # Outbound anomaly score - checked in the modsecurity_crs_59_outbound_blocking.conf file # # If you want to use anomaly scoring mode, then uncomment this line. # #SecAction \ "id:'900004', \ phase:1, \ t:none, \ setvar:tx.anomaly_score_blocking=on, \ nolog, \ pass" # # -- [[ GeoIP Database ]] ----------------------------------------------------------------- # # There are some rulesets that need to inspect the GEO data of the REMOTE_ADDR data. # # You must first download the MaxMind GeoIP Lite City DB - # # http://geolite.maxmind.com/download/geoip/database/GeoLiteCity.dat.gz # # You then need to define the proper path for the SecGeoLookupDb directive # # Ref: http://blog.spiderlabs.com/2010/10/detecting-malice-with-modsecurity-geolocation-data.html # Ref: http://blog.spiderlabs.com/2010/11/detecting-malice-with-modsecurity-ip-forensics.html # #SecGeoLookupDb /opt/modsecurity/lib/GeoLiteCity.dat # # -- [[ Regression Testing Mode ]] -------------------------------------------------------- # # If you are going to run the regression testing mode, you should uncomment the # following rule. It will enable DetectionOnly mode for the SecRuleEngine and # will enable Response Header tagging so that the client testing script can see # which rule IDs have matched. # # You must specify the your source IP address where you will be running the tests # from. # #SecRule REMOTE_ADDR "@ipMatch 192.168.1.100" \ "id:'900005', \ phase:1, \ t:none, \ ctl:ruleEngine=DetectionOnly, \ setvar:tx.regression_testing=1, \ nolog, \ pass" # # -- [[ HTTP Policy Settings ]] ---------------------------------------------------------- # # Set the following policy settings here and they will be propagated to the 23 rules # file (modsecurity_common_23_request_limits.conf) by using macro expansion. # If you run into false positives, you can adjust the settings here. # # Only the max number of args is uncommented by default as there are a high rate # of false positives. Uncomment the items you wish to set. # # # -- Maximum number of arguments in request limited SecAction \ "id:'900006', \ phase:1, \ t:none, \ setvar:tx.max_num_args=255, \ nolog, \ pass" # # -- Limit argument name length #SecAction \ "id:'900007', \ phase:1, \ t:none, \ setvar:tx.arg_name_length=100, \ nolog, \ pass" # # -- Limit value name length #SecAction \ "id:'900008', \ phase:1, \ t:none, \ setvar:tx.arg_length=400, \ nolog, \ pass" # # -- Limit arguments total length #SecAction \ "id:'900009', \ phase:1, \ t:none, \ setvar:tx.total_arg_length=64000, \ nolog, \ pass" # # -- Individual file size is limited #SecAction \ "id:'900010', \ phase:1, \ t:none, \ setvar:tx.max_file_size=1048576, \ nolog, \ pass" # # -- Combined file size is limited #SecAction \ "id:'900011', \ phase:1, \ t:none, \ setvar:tx.combined_file_sizes=1048576, \ nolog, \ pass" # # Set the following policy settings here and they will be propagated to the 30 rules # file (modsecurity_crs_30_http_policy.conf) by using macro expansion. # If you run into false positves, you can adjust the settings here. # SecAction \ "id:'900012', \ phase:1, \ t:none, \ setvar:'tx.allowed_methods=GET HEAD POST OPTIONS', \ setvar:'tx.allowed_request_content_type=application/x-www-form-urlencoded|multipart/form-data|text/xml|application/xml|application/x-amf|application/json', \ setvar:'tx.allowed_http_versions=HTTP/0.9 HTTP/1.0 HTTP/1.1', \ setvar:'tx.restricted_extensions=.asa/ .asax/ .ascx/ .axd/ .backup/ .bak/ .bat/ .cdx/ .cer/ .cfg/ .cmd/ .com/ .config/ .conf/ .cs/ .csproj/ .csr/ .dat/ .db/ .dbf/ .dll/ .dos/ .htr/ .htw/ .ida/ .idc/ .idq/ .inc/ .ini/ .key/ .licx/ .lnk/ .log/ .mdb/ .old/ .pass/ .pdb/ .pol/ .printer/ .pwd/ .resources/ .resx/ .sql/ .sys/ .vb/ .vbs/ .vbproj/ .vsdisco/ .webinfo/ .xsd/ .xsx/', \ setvar:'tx.restricted_headers=/Proxy-Connection/ /Lock-Token/ /Content-Range/ /Translate/ /via/ /if/', \ nolog, \ pass" # # -- [[ Content Security Policy (CSP) Settings ]] ----------------------------------------- # # The purpose of these settings is to send CSP response headers to # Mozilla FireFox users so that you can enforce how dynamic content # is used. CSP usage helps to prevent XSS attacks against your users. # # Reference Link: # # https://developer.mozilla.org/en/Security/CSP # # Uncomment this SecAction line if you want use CSP enforcement. # You need to set the appropriate directives and settings for your site/domain and # and activate the CSP file in the experimental_rules directory. # # Ref: http://blog.spiderlabs.com/2011/04/modsecurity-advanced-topic-of-the-week-integrating-content-security-policy-csp.html # #SecAction \ "id:'900013', \ phase:1, \ t:none, \ setvar:tx.csp_report_only=1, \ setvar:tx.csp_report_uri=/csp_violation_report, \ setenv:'csp_policy=allow \'self\'; img-src *.yoursite.com; media-src *.yoursite.com; style-src *.yoursite.com; frame-ancestors *.yoursite.com; script-src *.yoursite.com; report-uri %{tx.csp_report_uri}', \ nolog, \ pass" # # -- [[ Brute Force Protection ]] --------------------------------------------------------- # # If you are using the Brute Force Protection rule set, then uncomment the following # lines and set the following variables: # - Protected URLs: resources to protect (e.g. login pages) - set to your login page # - Burst Time Slice Interval: time interval window to monitor for bursts # - Request Threshold: request # threshold to trigger a burst # - Block Period: temporary block timeout # #SecAction \ "id:'900014', \ phase:1, \ t:none, \ setvar:'tx.brute_force_protected_urls=#/login.jsp# #/partner_login.php#', \ setvar:'tx.brute_force_burst_time_slice=60', \ setvar:'tx.brute_force_counter_threshold=10', \ setvar:'tx.brute_force_block_timeout=300', \ nolog, \ pass" # # -- [[ DoS Protection ]] ---------------------------------------------------------------- # # If you are using the DoS Protection rule set, then uncomment the following # lines and set the following variables: # - Burst Time Slice Interval: time interval window to monitor for bursts # - Request Threshold: request # threshold to trigger a burst # - Block Period: temporary block timeout # #SecAction \ "id:'900015', \ phase:1, \ t:none, \ setvar:'tx.dos_burst_time_slice=60', \ setvar:'tx.dos_counter_threshold=100', \ setvar:'tx.dos_block_timeout=600', \ nolog, \ pass" # # -- [[ Check UTF enconding ]] ----------------------------------------------------------- # # We only want to apply this check if UTF-8 encoding is actually used by the site, otherwise # it will result in false positives. # # Uncomment this line if your site uses UTF8 encoding #SecAction \ "id:'900016', \ phase:1, \ t:none, \ setvar:tx.crs_validate_utf8_encoding=1, \ nolog, \ pass" # # -- [[ Enable XML Body Parsing ]] ------------------------------------------------------- # # The rules in this file will trigger the XML parser upon an XML request # # Initiate XML Processor in case of xml content-type # SecRule REQUEST_HEADERS:Content-Type "text/xml" \ "id:'900017', \ phase:1, \ t:none,t:lowercase, \ nolog, \ pass, \ chain" SecRule REQBODY_PROCESSOR "!@streq XML" \ "ctl:requestBodyProcessor=XML" # # -- [[ Global and IP Collections ]] ----------------------------------------------------- # # Create both Global and IP collections for rules to use # There are some CRS rules that assume that these two collections # have already been initiated. # SecRule REQUEST_HEADERS:User-Agent "^(.*)$" \ "id:'900018', \ phase:1, \ t:none,t:sha1,t:hexEncode, \ setvar:tx.ua_hash=%{matched_var}, \ nolog, \ pass" SecRule REQUEST_HEADERS:x-forwarded-for "^\b(\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3})\b" \ "id:'900019', \ phase:1, \ t:none, \ capture, \ setvar:tx.real_ip=%{tx.1}, \ nolog, \ pass" SecRule &TX:REAL_IP "!@eq 0" \ "id:'900020', \ phase:1, \ t:none, \ initcol:global=global, \ initcol:ip=%{tx.real_ip}_%{tx.ua_hash}, \ nolog, \ pass" SecRule &TX:REAL_IP "@eq 0" \ "id:'900021', \ phase:1, \ t:none, \ initcol:global=global, \ initcol:ip=%{remote_addr}_%{tx.ua_hash}, \ setvar:tx.real_ip=%{remote_addr}, \ nolog, \ pass"