[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fhKT0jL71_qiSZEaa0ZLycopGUe6Bnb3DLtVrM_co3k0":3,"g5a-risk:CVE-2020-1887":119},{"success":4,"data":5,"meta":117},true,{"cveId":6,"title":7,"description":8,"shortDescription":9,"publishedDate":10,"lastModified":11,"cvssScore":12,"cvssVector":13,"cvssMetrics":14,"epssScore":40,"epssPercentile":27,"epssTimeSeries":41,"severity":42,"affectedProducts":43,"affectedProductsCount":49,"references":50,"referencesCount":61,"weaknesses":62,"weaknessesCount":61,"isActivelyExploited":78,"cisaInfo":27,"otxData":27,"relatedBlogPosts":79,"seoMetadata":80,"configurations":105,"relatedVendorCves":115,"notableEvents":116},"CVE-2020-1887","What is CVE-2020-1887?","Incorrect validation of the TLS SNI hostname in osquery versions after 2.9.0 and before 4.2.0 could allow an attacker to MITM osquery traffic in the absence of a configured root chain of trust.","Incorrect validation of the TLS SNI hostname in osquery versions after 2.9.0 and before 4.2.0 could allow an attacker to MITM osquery traffic in the absence ...","2020-03-13T00:15:11.557","2020-04-03T15:25:48.34",9.1,"CVSS:3.1\u002FAV:N\u002FAC:L\u002FPR:N\u002FUI:N\u002FS:U\u002FC:H\u002FI:H\u002FA:N",{"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":23,"BaseScore":12,"BaseSeverity":26,"ExploitCodeMaturity":27,"RemediationLevel":27,"ReportConfidence":27,"TemporalScore":27,"TemporalSeverity":27,"ConfidentialityRequirement":27,"IntegrityRequirement":27,"AvailabilityRequirement":23,"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,3.9,5.2,[31],{"Source":17,"Type":18,"CVSSData":32,"BaseSeverity":35,"ExploitabilityScore":38,"ImpactScore":39,"ACInsufInfo":27,"ObtainAllPrivilege":27,"ObtainUserPrivilege":27,"ObtainOtherPrivilege":27,"UserInteractionRequired":27},{"Version":33,"VectorString":34,"AccessVector":21,"AccessComplexity":35,"Authentication":23,"ConfidentialityImpact":36,"IntegrityImpact":36,"AvailabilityImpact":23,"BaseScore":37,"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:M\u002FAu:N\u002FC:P\u002FI:P\u002FA:N","MEDIUM","PARTIAL",5.8,8.6,4.9,0.01573,[40,40,40,40,40,40,40],"Critical",[44],{"vendor":45,"product":46,"version":47,"criteria":48,"vulnerable":4},"linuxfoundation","osquery","*","cpe:2.3:a:linuxfoundation:osquery:*:*:*:*:*:*:*:*",1,[51,57],{"url":52,"source":53,"tags":54},"https:\u002F\u002Fgithub.com\u002Fosquery\u002Fosquery\u002Fpull\u002F6197","GitHub",[55,56],"Patch","Third Party Advisory",{"url":58,"source":59,"tags":60},"https:\u002F\u002Fwww.facebook.com\u002Fsecurity\u002Fadvisories\u002Fcve-2020-1887","Facebook",[56],2,[63,71],{"id":64,"name":65,"description":66,"extendedDescription":67,"status":68,"abstraction":69,"structure":70},"CWE-295","Improper Certificate Validation","The product does not validate, or incorrectly validates, a certificate.","When a certificate is invalid or malicious, it might allow an attacker to spoof a trusted entity by interfering in the communication path between the host and client. The product might connect to a malicious host while believing it is a trusted host, or the product might be deceived into accepting spoofed data that appears to originate from a trusted host.","Draft","Base","Simple",{"id":72,"name":73,"description":74,"extendedDescription":75,"status":76,"abstraction":77,"structure":70},"CWE-297","Improper Validation of Certificate with Host Mismatch","The product communicates with a host that provides a certificate, but the product does not properly ensure that the certificate is actually associated with that host.","Even if a certificate is well-formed, signed, and follows the chain of trust, it may simply be a valid certificate for a different site than the site that the product is interacting with. If the certificate's host-specific data is not properly checked - such as the Common Name (CN) in the Subject or the Subject Alternative Name (SAN) extension of an X.509 certificate - it may be possible for a redirection or spoofing attack to allow a malicious host with a valid certificate to provide data, impersonating a trusted host. In order to ensure data integrity, the certificate must be valid and it must pertain to the site that is being accessed.\nEven if the product attempts to check the hostname, it is still possible to incorrectly check the hostname. For example, attackers could create a certificate with a name that begins with a trusted name followed by a NUL byte, which could cause some string-based comparisons to only examine the portion that contains the trusted name.\nThis weakness can occur even when the product uses Certificate Pinning, if the product does not verify the hostname at the time a certificate is pinned.","Incomplete","Variant",false,[],{"title":81,"metaDescription":82,"keywords":83,"canonicalUrl":84,"structuredData":85},"What is CVE-2020-1887? Vulnerability Analysis | Security Advisory | Precursor Intelligence","Comprehensive analysis of CVE-2020-1887, a critical severity cyber security vulnerability from 2020. Incorrect validation of the TLS SNI hostname in osquery ...","CVE-2020-1887, CVE-2020-1887 vulnerability, CVE-2020-1887 security, critical severity vulnerability, cybersecurity, vulnerability analysis, security advisory, CVE database, threat intelligence, security research, vulnerability assessment, cyber threats, 2020, CVSS score, exploit, patch, remediation, linuxfoundation security, osquery vulnerability","\u002Fwhat-is\u002Fcve-2020-1887",{"@context":86,"@type":87,"headline":81,"description":82,"datePublished":10,"dateModified":11,"author":88,"publisher":92,"about":96,"mainEntityOfPage":100,"articleSection":103,"keywords":104},"https:\u002F\u002Fschema.org","TechArticle",{"@type":89,"name":90,"url":91},"Organization","Precursor Intelligence","https:\u002F\u002Fprecursorintelligence.com",{"@type":89,"name":90,"url":91,"logo":93},{"@type":94,"url":95},"ImageObject","https:\u002F\u002Fprecursorintelligence.com\u002Fimg\u002Flogos\u002Feplogo.png",{"@type":97,"name":6,"description":98,"additionalType":99},"Thing","Cybersecurity Vulnerability","https:\u002F\u002Fschema.org\u002FSoftwareBug",{"@type":101,"@id":102},"WebPage","https:\u002F\u002Fprecursorintelligence.com\u002Fwhat-is\u002Fcve-2020-1887","Cybersecurity","CVE-2020-1887, CVE-2020-1887 vulnerability, CVE-2020-1887 security, critical severity vulnerability, cybersecurity, vulnerability analysis, security advisory, CVE database, threat intelligence, security research",[106],{"Operator":27,"Negate":27,"Nodes":107},[108],{"Operator":109,"Negate":27,"CPEMatch":110},"OR",[111],{"Vulnerable":4,"Criteria":48,"MatchCriteriaID":112,"VersionStartExcluding":113,"VersionStartIncluding":27,"VersionEndExcluding":114,"VersionEndIncluding":27},"AA6834F7-B2DE-4C0A-BBBB-4B686AF0A3D5","2.9.0","4.2.0",[],[],{"lastModified":11,"cacheTime":118,"version":33},1792436114590,{"score":120,"band":121,"action":122,"scoredAt":123},54,"Medium","Plan remediation","2026-10-16T06:48:05.074719+00:00"]