[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fmTsrAvegwe8fGHQbBvAm3pveDNDSEGm_AFd6QONd11w":3,"g5a-risk:CVE-2019-5477":176},{"success":4,"data":5,"meta":174},true,{"cveId":6,"title":7,"description":8,"shortDescription":9,"publishedDate":10,"lastModified":11,"cvssScore":12,"cvssVector":13,"cvssMetrics":14,"epssScore":39,"epssPercentile":27,"epssTimeSeries":40,"severity":41,"affectedProducts":42,"affectedProductsCount":69,"references":70,"referencesCount":105,"weaknesses":106,"weaknessesCount":115,"isActivelyExploited":116,"cisaInfo":27,"otxData":27,"relatedBlogPosts":117,"seoMetadata":118,"configurations":143,"relatedVendorCves":172,"notableEvents":173},"CVE-2019-5477","What is CVE-2019-5477?","A command injection vulnerability in Nokogiri v1.10.3 and earlier allows commands to be executed in a subprocess via Ruby's `Kernel.open` method. Processes are vulnerable only if the undocumented method `Nokogiri::CSS::Tokenizer#load_file` is being called with unsafe user input as the filename. This vulnerability appears in code generated by the Rexical gem versions v1.0.6 and earlier. Rexical is used by Nokogiri to generate lexical scanner code for parsing CSS queries. The underlying vulnerability was addressed in Rexical v1.0.7 and Nokogiri upgraded to this version of Rexical in Nokogiri v1.10.4.","A command injection vulnerability in Nokogiri v1.10.3 and earlier allows commands to be executed in a subprocess via Ruby's `Kernel.open` method. Processes a...","2019-08-16T16:15:10.637","2022-10-14T18:46:33.867",9.8,"CVSS:3.1\u002FAV:N\u002FAC:L\u002FPR:N\u002FUI:N\u002FS:U\u002FC:H\u002FI:H\u002FA:H",{"CVSSMetricV31":15,"CVSSMetricV30":27,"CVSSMetricV2":30,"CVSSMetricV40":27},[16],{"Source":17,"Type":18,"CVSSData":19,"ExploitabilityScore":28,"ImpactScore":29},"nvd@nist.gov","Primary",{"Version":20,"VectorString":13,"AttackVector":21,"AttackComplexity":22,"PrivilegesRequired":23,"UserInteraction":23,"Scope":24,"ConfidentialityImpact":25,"IntegrityImpact":25,"AvailabilityImpact":25,"BaseScore":12,"BaseSeverity":26,"ExploitCodeMaturity":27,"RemediationLevel":27,"ReportConfidence":27,"TemporalScore":27,"TemporalSeverity":27,"ConfidentialityRequirement":27,"IntegrityRequirement":27,"AvailabilityRequirement":25,"ModifiedAttackVector":27,"ModifiedAttackComplexity":27,"ModifiedPrivilegesRequired":27,"ModifiedUserInteraction":27,"ModifiedScope":27,"ModifiedConfidentialityImpact":27,"ModifiedIntegrityImpact":27,"ModifiedAvailabilityImpact":27,"EnvironmentalScore":27,"EnvironmentalSeverity":27},"3.1","NETWORK","LOW","NONE","UNCHANGED","HIGH","CRITICAL",null,3.9,5.9,[31],{"Source":17,"Type":18,"CVSSData":32,"BaseSeverity":25,"ExploitabilityScore":37,"ImpactScore":38,"ACInsufInfo":27,"ObtainAllPrivilege":27,"ObtainUserPrivilege":27,"ObtainOtherPrivilege":27,"UserInteractionRequired":27},{"Version":33,"VectorString":34,"AccessVector":21,"AccessComplexity":22,"Authentication":23,"ConfidentialityImpact":35,"IntegrityImpact":35,"AvailabilityImpact":35,"BaseScore":36,"BaseSeverity":27,"Exploitability":27,"RemediationLevel":27,"ReportConfidence":27,"TemporalScore":27,"CollateralDamagePotential":27,"TargetDistribution":27,"ConfidentialityRequirement":27,"IntegrityRequirement":27,"AvailabilityRequirement":27,"EnvironmentalScore":27},"2.0","AV:N\u002FAC:L\u002FAu:N\u002FC:P\u002FI:P\u002FA:P","PARTIAL",7.5,10,6.4,0.05899,[39,39,39,39,39,39,39],"Critical",[43,47,52,55,58,61,66],{"vendor":44,"product":44,"version":45,"criteria":46,"vulnerable":4},"nokogiri","*","cpe:2.3:a:nokogiri:nokogiri:*:*:*:*:*:*:*:*",{"vendor":48,"product":49,"version":50,"criteria":51,"vulnerable":4},"canonical","ubuntu_linux","16.04","cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*",{"vendor":48,"product":49,"version":53,"criteria":54,"vulnerable":4},"18.04","cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*",{"vendor":48,"product":49,"version":56,"criteria":57,"vulnerable":4},"19.04","cpe:2.3:o:canonical:ubuntu_linux:19.04:*:*:*:*:*:*:*",{"vendor":48,"product":49,"version":59,"criteria":60,"vulnerable":4},"19.10","cpe:2.3:o:canonical:ubuntu_linux:19.10:*:*:*:*:*:*:*",{"vendor":62,"product":63,"version":64,"criteria":65,"vulnerable":4},"debian","debian_linux","8.0","cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*",{"vendor":62,"product":63,"version":67,"criteria":68,"vulnerable":4},"10.0","cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*",7,[71,77,81,86,91,94,97,101],{"url":72,"source":73,"tags":74},"https:\u002F\u002Fgithub.com\u002Fsparklemotion\u002Fnokogiri\u002Fissues\u002F1915","GitHub",[75,76],"Patch","Third Party Advisory",{"url":78,"source":73,"tags":79},"https:\u002F\u002Fgithub.com\u002Ftenderlove\u002Frexical\u002Fblob\u002Fmaster\u002FCHANGELOG.rdoc",[80],"Release Notes",{"url":82,"source":83,"tags":84},"https:\u002F\u002Fhackerone.com\u002Freports\u002F650835","Hackerone",[85],"Permissions Required",{"url":87,"source":88,"tags":89},"https:\u002F\u002Flists.debian.org\u002Fdebian-lts-announce\u002F2019\u002F09\u002Fmsg00027.html","Debian",[90,76],"Mailing List",{"url":92,"source":88,"tags":93},"https:\u002F\u002Flists.debian.org\u002Fdebian-lts-announce\u002F2022\u002F10\u002Fmsg00018.html",[90,76],{"url":95,"source":88,"tags":96},"https:\u002F\u002Flists.debian.org\u002Fdebian-lts-announce\u002F2022\u002F10\u002Fmsg00019.html",[90,76],{"url":98,"source":99,"tags":100},"https:\u002F\u002Fsecurity.gentoo.org\u002Fglsa\u002F202006-05","Gentoo",[76],{"url":102,"source":103,"tags":104},"https:\u002F\u002Fusn.ubuntu.com\u002F4175-1\u002F","Ubuntu",[76],8,[107],{"id":108,"name":109,"description":110,"extendedDescription":111,"status":112,"abstraction":113,"structure":114},"CWE-78","Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')","The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component.","This weakness can lead to a vulnerability in environments in which the attacker does not have direct access to the operating system, such as in web applications. Alternately, if the weakness occurs in a privileged program, it could allow the attacker to specify commands that normally would not be accessible, or to call alternate commands with privileges that the attacker does not have. The problem is exacerbated if the compromised process does not follow the principle of least privilege, because the attacker-controlled commands may run with special system privileges that increases the amount of damage.\nThere are at least two subtypes of OS command injection:\nFrom a weakness standpoint, these variants represent distinct programmer errors. In the first variant, the programmer clearly intends that input from untrusted parties will be part of the arguments in the command to be executed. In the second variant, the programmer does not intend for the command to be accessible to any untrusted party, but the programmer probably has not accounted for alternate ways in which malicious attackers can provide input.","Stable","Base","Simple",1,false,[],{"title":119,"metaDescription":120,"keywords":121,"canonicalUrl":122,"structuredData":123},"What is CVE-2019-5477? Vulnerability Analysis | Security Advisory | Precursor Intelligence","Comprehensive analysis of CVE-2019-5477, a critical severity cyber security vulnerability from 2019. A command injection vulnerability in Nokogiri v1.10.3 an...","CVE-2019-5477, CVE-2019-5477 vulnerability, CVE-2019-5477 security, critical severity vulnerability, cybersecurity, vulnerability analysis, security advisory, CVE database, threat intelligence, security research, vulnerability assessment, cyber threats, 2019, CVSS score, exploit, patch, remediation, nokogiri security, canonical security, debian security, nokogiri vulnerability, ubuntu_linux vulnerability, debian_linux vulnerability","\u002Fwhat-is\u002Fcve-2019-5477",{"@context":124,"@type":125,"headline":119,"description":120,"datePublished":10,"dateModified":11,"author":126,"publisher":130,"about":134,"mainEntityOfPage":138,"articleSection":141,"keywords":142},"https:\u002F\u002Fschema.org","TechArticle",{"@type":127,"name":128,"url":129},"Organization","Precursor Intelligence","https:\u002F\u002Fprecursorintelligence.com",{"@type":127,"name":128,"url":129,"logo":131},{"@type":132,"url":133},"ImageObject","https:\u002F\u002Fprecursorintelligence.com\u002Fimg\u002Flogos\u002Feplogo.png",{"@type":135,"name":6,"description":136,"additionalType":137},"Thing","Cybersecurity Vulnerability","https:\u002F\u002Fschema.org\u002FSoftwareBug",{"@type":139,"@id":140},"WebPage","https:\u002F\u002Fprecursorintelligence.com\u002Fwhat-is\u002Fcve-2019-5477","Cybersecurity","CVE-2019-5477, CVE-2019-5477 vulnerability, CVE-2019-5477 security, critical severity vulnerability, cybersecurity, vulnerability analysis, security advisory, CVE database, threat intelligence, security research",[144,152,164],{"Operator":27,"Negate":27,"Nodes":145},[146],{"Operator":147,"Negate":27,"CPEMatch":148},"OR",[149],{"Vulnerable":4,"Criteria":46,"MatchCriteriaID":150,"VersionStartExcluding":27,"VersionStartIncluding":27,"VersionEndExcluding":27,"VersionEndIncluding":151},"E018DCFD-3E4A-4D78-B63A-488052EF45E7","1.10.3",{"Operator":27,"Negate":27,"Nodes":153},[154],{"Operator":147,"Negate":27,"CPEMatch":155},[156,158,160,162],{"Vulnerable":4,"Criteria":51,"MatchCriteriaID":157,"VersionStartExcluding":27,"VersionStartIncluding":27,"VersionEndExcluding":27,"VersionEndIncluding":27},"F7016A2A-8365-4F1A-89A2-7A19F2BCAE5B",{"Vulnerable":4,"Criteria":54,"MatchCriteriaID":159,"VersionStartExcluding":27,"VersionStartIncluding":27,"VersionEndExcluding":27,"VersionEndIncluding":27},"23A7C53F-B80F-4E6A-AFA9-58EEA84BE11D",{"Vulnerable":4,"Criteria":57,"MatchCriteriaID":161,"VersionStartExcluding":27,"VersionStartIncluding":27,"VersionEndExcluding":27,"VersionEndIncluding":27},"CD783B0C-9246-47D9-A937-6144FE8BFF0F",{"Vulnerable":4,"Criteria":60,"MatchCriteriaID":163,"VersionStartExcluding":27,"VersionStartIncluding":27,"VersionEndExcluding":27,"VersionEndIncluding":27},"A31C8344-3E02-4EB8-8BD8-4C84B7959624",{"Operator":27,"Negate":27,"Nodes":165},[166],{"Operator":147,"Negate":27,"CPEMatch":167},[168,170],{"Vulnerable":4,"Criteria":65,"MatchCriteriaID":169,"VersionStartExcluding":27,"VersionStartIncluding":27,"VersionEndExcluding":27,"VersionEndIncluding":27},"C11E6FB0-C8C0-4527-9AA0-CB9B316F8F43",{"Vulnerable":4,"Criteria":68,"MatchCriteriaID":171,"VersionStartExcluding":27,"VersionStartIncluding":27,"VersionEndExcluding":27,"VersionEndIncluding":27},"07B237A9-69A3-4A9C-9DA0-4E06BD37AE73",[],[],{"lastModified":11,"cacheTime":175,"version":33},1792257675510,{"score":177,"band":178,"action":179,"scoredAt":180},54,"Medium","Plan remediation","2026-10-16T06:46:43.18364+00:00"]