[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fCEDvPaGgD6Z27rigx5X69cL1v-OcRBFoL4BwlbE4dTc":3,"g5a-risk:CVE-2022-39956":186},{"success":4,"data":5,"meta":183},true,{"cveId":6,"title":7,"description":8,"shortDescription":9,"publishedDate":10,"lastModified":11,"cvssScore":12,"cvssVector":13,"cvssMetrics":14,"epssScore":39,"epssPercentile":28,"epssTimeSeries":40,"severity":41,"affectedProducts":42,"affectedProductsCount":64,"references":65,"referencesCount":107,"weaknesses":108,"weaknessesCount":123,"isActivelyExploited":124,"cisaInfo":28,"otxData":28,"relatedBlogPosts":125,"seoMetadata":126,"configurations":151,"relatedVendorCves":181,"notableEvents":182},"CVE-2022-39956","What is CVE-2022-39956?","The OWASP ModSecurity Core Rule Set (CRS) is affected by a partial rule set bypass for HTTP multipart requests by submitting a payload that uses a character encoding scheme via the Content-Type or the deprecated Content-Transfer-Encoding multipart MIME header fields that will not be decoded and inspected by the web application firewall engine and the rule set. The multipart payload will therefore bypass detection. A vulnerable backend that supports these encoding schemes can potentially be exploited. The legacy CRS versions 3.0.x and 3.1.x are affected, as well as the currently supported versions 3.2.1 and 3.3.2. Integrators and users are advised upgrade to 3.2.2 and 3.3.3 respectively. The mitigation against these vulnerabilities depends on the installation of the latest ModSecurity version (v2.9.6 \u002F v3.0.8).","The OWASP ModSecurity Core Rule Set (CRS) is affected by a partial rule set bypass for HTTP multipart requests by submitting a payload that uses a character ...","2022-09-20T07:15:12.293","2025-11-03T20:15:56.45",9.8,"CVSS:3.1\u002FAV:N\u002FAC:L\u002FPR:N\u002FUI:N\u002FS:U\u002FC:H\u002FI:H\u002FA:H",{"CVSSMetricV31":15,"CVSSMetricV30":37,"CVSSMetricV2":38,"CVSSMetricV40":28},[16,31],{"Source":17,"Type":18,"CVSSData":19,"ExploitabilityScore":29,"ImpactScore":30},"vulnerability@ncsc.ch","Secondary",{"Version":20,"VectorString":21,"AttackVector":22,"AttackComplexity":23,"PrivilegesRequired":24,"UserInteraction":24,"Scope":25,"ConfidentialityImpact":23,"IntegrityImpact":23,"AvailabilityImpact":23,"BaseScore":26,"BaseSeverity":27,"ExploitCodeMaturity":28,"RemediationLevel":28,"ReportConfidence":28,"TemporalScore":28,"TemporalSeverity":28,"ConfidentialityRequirement":28,"IntegrityRequirement":28,"AvailabilityRequirement":28,"ModifiedAttackVector":28,"ModifiedAttackComplexity":28,"ModifiedPrivilegesRequired":28,"ModifiedUserInteraction":28,"ModifiedScope":28,"ModifiedConfidentialityImpact":28,"ModifiedIntegrityImpact":28,"ModifiedAvailabilityImpact":28,"EnvironmentalScore":28,"EnvironmentalSeverity":28},"3.1","CVSS:3.1\u002FAV:N\u002FAC:L\u002FPR:N\u002FUI:N\u002FS:U\u002FC:L\u002FI:L\u002FA:L","NETWORK","LOW","NONE","UNCHANGED",7.3,"HIGH",null,3.9,3.4,{"Source":32,"Type":33,"CVSSData":34,"ExploitabilityScore":29,"ImpactScore":36},"nvd@nist.gov","Primary",{"Version":20,"VectorString":13,"AttackVector":22,"AttackComplexity":23,"PrivilegesRequired":24,"UserInteraction":24,"Scope":25,"ConfidentialityImpact":27,"IntegrityImpact":27,"AvailabilityImpact":27,"BaseScore":12,"BaseSeverity":35,"ExploitCodeMaturity":28,"RemediationLevel":28,"ReportConfidence":28,"TemporalScore":28,"TemporalSeverity":28,"ConfidentialityRequirement":28,"IntegrityRequirement":28,"AvailabilityRequirement":28,"ModifiedAttackVector":28,"ModifiedAttackComplexity":28,"ModifiedPrivilegesRequired":28,"ModifiedUserInteraction":28,"ModifiedScope":28,"ModifiedConfidentialityImpact":28,"ModifiedIntegrityImpact":28,"ModifiedAvailabilityImpact":28,"EnvironmentalScore":28,"EnvironmentalSeverity":28},"CRITICAL",5.9,[],[],0.01212,[39,39,39,39,39,39,39],"Critical",[43,48,53,56,59],{"vendor":44,"product":45,"version":46,"criteria":47,"vulnerable":4},"owasp","owasp_modsecurity_core_rule_set","*","cpe:2.3:a:owasp:owasp_modsecurity_core_rule_set:*:*:*:*:*:*:*:*",{"vendor":49,"product":50,"version":51,"criteria":52,"vulnerable":4},"fedoraproject","fedora","35","cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*",{"vendor":49,"product":50,"version":54,"criteria":55,"vulnerable":4},"36","cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:*",{"vendor":49,"product":50,"version":57,"criteria":58,"vulnerable":4},"37","cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:*",{"vendor":60,"product":61,"version":62,"criteria":63,"vulnerable":4},"debian","debian_linux","10.0","cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*",5,[66,72,78,82,85,88,92,94,96,99,101,103,105],{"url":67,"source":68,"tags":69},"https:\u002F\u002Fcoreruleset.org\u002F20220919\u002Fcrs-version-3-3-3-and-3-2-2-covering-several-cves\u002F","Coreruleset",[70,71],"Patch","Vendor Advisory",{"url":73,"source":74,"tags":75},"https:\u002F\u002Flists.debian.org\u002Fdebian-lts-announce\u002F2023\u002F01\u002Fmsg00033.html","Debian",[76,77],"Mailing List","Third Party Advisory",{"url":79,"source":80,"tags":81},"https:\u002F\u002Flists.fedoraproject.org\u002Farchives\u002Flist\u002Fpackage-announce%40lists.fedoraproject.org\u002Fmessage\u002FHL2L2GF7GOCWPMJZDUE5OXDSXHGG3XUJ\u002F","Fedoraproject",[],{"url":83,"source":80,"tags":84},"https:\u002F\u002Flists.fedoraproject.org\u002Farchives\u002Flist\u002Fpackage-announce%40lists.fedoraproject.org\u002Fmessage\u002FPD56EAYNGB6E6QQH62LAYCONOP6OH5DZ\u002F",[],{"url":86,"source":80,"tags":87},"https:\u002F\u002Flists.fedoraproject.org\u002Farchives\u002Flist\u002Fpackage-announce%40lists.fedoraproject.org\u002Fmessage\u002FYPQ6CCMX3MU4A7MTCGQJA7VMJW3IQDXV\u002F",[],{"url":89,"source":90,"tags":91},"https:\u002F\u002Fsecurity.gentoo.org\u002Fglsa\u002F202305-25","Gentoo",[],{"url":67,"source":68,"tags":93},[70,71],{"url":73,"source":74,"tags":95},[76,77],{"url":97,"source":74,"tags":98},"https:\u002F\u002Flists.debian.org\u002Fdebian-lts-announce\u002F2025\u002F08\u002Fmsg00004.html",[],{"url":79,"source":80,"tags":100},[],{"url":83,"source":80,"tags":102},[],{"url":86,"source":80,"tags":104},[],{"url":89,"source":90,"tags":106},[],13,[109,117],{"id":110,"name":111,"description":112,"extendedDescription":113,"status":114,"abstraction":115,"structure":116},"CWE-116","Improper Encoding or Escaping of Output","The product prepares a structured message for communication with another component, but encoding or escaping of the data is either missing or done incorrectly. As a result, the intended structure of the message is not preserved.","Improper encoding or escaping can allow attackers to change the commands that are sent to another component, inserting malicious commands instead.\nMost products follow a certain protocol that uses structured messages for communication between components, such as queries or commands. These structured messages can contain raw data interspersed with metadata or control information. For example, \"GET \u002Findex.html HTTP\u002F1.1\" is a structured message containing a command (\"GET\") with a single argument (\"\u002Findex.html\") and metadata about which protocol version is being used (\"HTTP\u002F1.1\").\nIf an application uses attacker-supplied inputs to construct a structured message without properly encoding or escaping, then the attacker could insert special characters that will cause the data to be interpreted as control information or metadata. Consequently, the component that receives the output will perform the wrong operations, or otherwise interpret the data incorrectly.","Draft","Class","Simple",{"id":118,"name":119,"description":120,"extendedDescription":121,"status":122,"abstraction":115,"structure":116},"CWE-863","Incorrect Authorization","The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check. This allows attackers to bypass intended access restrictions.","Assuming a user with a given identity, authorization is the process of determining whether that user can access a given resource, based on the user's privileges and any permissions or other access-control specifications that apply to the resource.\nWhen access control checks are incorrectly applied, users are able to access data or perform actions that they should not be allowed to perform. This can lead to a wide range of problems, including information exposures, denial of service, and arbitrary code execution.","Incomplete",2,false,[],{"title":127,"metaDescription":128,"keywords":129,"canonicalUrl":130,"structuredData":131},"What is CVE-2022-39956? Vulnerability Analysis | Security Advisory | Precursor Intelligence","Comprehensive analysis of CVE-2022-39956, a critical severity cyber security vulnerability from 2022. The OWASP ModSecurity Core Rule Set (CRS) is affected b...","CVE-2022-39956, CVE-2022-39956 vulnerability, CVE-2022-39956 security, critical severity vulnerability, cybersecurity, vulnerability analysis, security advisory, CVE database, threat intelligence, security research, vulnerability assessment, cyber threats, 2022, CVSS score, exploit, patch, remediation, owasp security, fedoraproject security, debian security, owasp_modsecurity_core_rule_set vulnerability, fedora vulnerability, debian_linux vulnerability","\u002Fwhat-is\u002Fcve-2022-39956",{"@context":132,"@type":133,"headline":127,"description":128,"datePublished":10,"dateModified":11,"author":134,"publisher":138,"about":142,"mainEntityOfPage":146,"articleSection":149,"keywords":150},"https:\u002F\u002Fschema.org","TechArticle",{"@type":135,"name":136,"url":137},"Organization","Precursor Intelligence","https:\u002F\u002Fprecursorintelligence.com",{"@type":135,"name":136,"url":137,"logo":139},{"@type":140,"url":141},"ImageObject","https:\u002F\u002Fprecursorintelligence.com\u002Fimg\u002Flogos\u002Feplogo.png",{"@type":143,"name":6,"description":144,"additionalType":145},"Thing","Cybersecurity Vulnerability","https:\u002F\u002Fschema.org\u002FSoftwareBug",{"@type":147,"@id":148},"WebPage","https:\u002F\u002Fprecursorintelligence.com\u002Fwhat-is\u002Fcve-2022-39956","Cybersecurity","CVE-2022-39956, CVE-2022-39956 vulnerability, CVE-2022-39956 security, critical severity vulnerability, cybersecurity, vulnerability analysis, security advisory, CVE database, threat intelligence, security research",[152,165,175],{"Operator":28,"Negate":28,"Nodes":153},[154],{"Operator":155,"Negate":124,"CPEMatch":156},"OR",[157,161],{"Vulnerable":4,"Criteria":47,"MatchCriteriaID":158,"VersionStartExcluding":28,"VersionStartIncluding":159,"VersionEndExcluding":160,"VersionEndIncluding":28},"E9D7A320-7FDD-43B5-92AD-E8EFD58D278E","3.0.0","3.2.2",{"Vulnerable":4,"Criteria":47,"MatchCriteriaID":162,"VersionStartExcluding":28,"VersionStartIncluding":163,"VersionEndExcluding":164,"VersionEndIncluding":28},"7D378AD7-0734-4F54-B4FB-975DDF1C80A4","3.3.0","3.3.3",{"Operator":28,"Negate":28,"Nodes":166},[167],{"Operator":155,"Negate":124,"CPEMatch":168},[169,171,173],{"Vulnerable":4,"Criteria":52,"MatchCriteriaID":170,"VersionStartExcluding":28,"VersionStartIncluding":28,"VersionEndExcluding":28,"VersionEndIncluding":28},"80E516C0-98A4-4ADE-B69F-66A772E2BAAA",{"Vulnerable":4,"Criteria":55,"MatchCriteriaID":172,"VersionStartExcluding":28,"VersionStartIncluding":28,"VersionEndExcluding":28,"VersionEndIncluding":28},"5C675112-476C-4D7C-BCB9-A2FB2D0BC9FD",{"Vulnerable":4,"Criteria":58,"MatchCriteriaID":174,"VersionStartExcluding":28,"VersionStartIncluding":28,"VersionEndExcluding":28,"VersionEndIncluding":28},"E30D0E6F-4AE8-4284-8716-991DFA48CC5D",{"Operator":28,"Negate":28,"Nodes":176},[177],{"Operator":155,"Negate":124,"CPEMatch":178},[179],{"Vulnerable":4,"Criteria":63,"MatchCriteriaID":180,"VersionStartExcluding":28,"VersionStartIncluding":28,"VersionEndExcluding":28,"VersionEndIncluding":28},"07B237A9-69A3-4A9C-9DA0-4E06BD37AE73",[],[],{"lastModified":11,"cacheTime":184,"version":185},1792266148938,"2.0",{"score":187,"band":188,"action":189,"scoredAt":190},54,"Medium","Plan remediation","2026-10-16T06:55:44.223969+00:00"]