[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fnoNGK7UOQzV8OEXvRlSUu-9LEudVKexOpJBMmtbX-3A":3,"g5a-risk:CVE-2019-11495":104},{"success":4,"data":5,"meta":102},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":48,"references":49,"referencesCount":48,"weaknesses":56,"weaknessesCount":48,"isActivelyExploited":65,"cisaInfo":27,"otxData":27,"relatedBlogPosts":66,"seoMetadata":67,"configurations":92,"relatedVendorCves":100,"notableEvents":101},"CVE-2019-11495","What is CVE-2019-11495?","In Couchbase Server 5.1.1, the cookie used for intra-node communication was not generated securely. Couchbase Server uses erlang:now() to seed the PRNG which results in a small search space for potential random seeds that could then be used to brute force the cookie and execute code against a remote system. This has been fixed in version 6.0.0.","In Couchbase Server 5.1.1, the cookie used for intra-node communication was not generated securely. Couchbase Server uses erlang:now() to seed the PRNG which...","2019-09-10T18:15:12.463","2024-02-10T02:54:05.923",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",7.5,10,6.4,0.02139,[39,39,39,39,39,39,39],"Critical",[43],{"vendor":44,"product":45,"version":46,"criteria":47,"vulnerable":4},"couchbase","couchbase_server","5.1.1","cpe:2.3:a:couchbase:couchbase_server:5.1.1:*:*:*:*:*:*:*",1,[50],{"url":51,"source":52,"tags":53},"https:\u002F\u002Fwww.couchbase.com\u002Fresources\u002Fsecurity#SecurityAlerts","Couchbase",[54,55],"Broken Link","Vendor Advisory",[57],{"id":58,"name":59,"description":60,"extendedDescription":61,"status":62,"abstraction":63,"structure":64},"CWE-335","Incorrect Usage of Seeds in Pseudo-Random Number Generator (PRNG)","The product uses a Pseudo-Random Number Generator (PRNG) but does not correctly manage seeds.","PRNGs are deterministic and, while their output appears\n\t\t   random, they cannot actually create entropy. They rely on\n\t\t   cryptographically secure and unique seeds for entropy so\n\t\t   proper seeding is critical to the secure operation of the\n\t\t   PRNG.\nManagement of seeds could be broken down into two main areas:\nPRNGs require a seed as input to generate a stream of\n\t\t\t   numbers that are functionally indistinguishable from\n\t\t\t   random numbers.  While the output is, in many cases,\n\t\t\t   sufficient for cryptographic uses, the output of any\n\t\t\t   PRNG is directly determined by the seed provided as\n\t\t\t   input. If the seed can be ascertained by a third party,\n\t\t\t   the entire output of the PRNG can be made known to\n\t\t\t   them. As such, the seed should be kept secret and\n\t\t\t   should ideally not be able to be guessed. For example,\n\t\t\t   the current time may be a poor seed. Knowing the\n\t\t\t   approximate time the PRNG was seeded greatly reduces\n\t\t\t   the possible key space.\nSeeds do not necessarily need to be unique, but reusing seeds may open up attacks if the seed is discovered.","Draft","Base","Simple",false,[],{"title":68,"metaDescription":69,"keywords":70,"canonicalUrl":71,"structuredData":72},"What is CVE-2019-11495? Vulnerability Analysis | Security Advisory | Precursor Intelligence","Comprehensive analysis of CVE-2019-11495, a critical severity cyber security vulnerability from 2019. In Couchbase Server 5.1.1, the cookie used for intra-no...","CVE-2019-11495, CVE-2019-11495 vulnerability, CVE-2019-11495 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, couchbase security, couchbase_server vulnerability","\u002Fwhat-is\u002Fcve-2019-11495",{"@context":73,"@type":74,"headline":68,"description":69,"datePublished":10,"dateModified":11,"author":75,"publisher":79,"about":83,"mainEntityOfPage":87,"articleSection":90,"keywords":91},"https:\u002F\u002Fschema.org","TechArticle",{"@type":76,"name":77,"url":78},"Organization","Precursor Intelligence","https:\u002F\u002Fprecursorintelligence.com",{"@type":76,"name":77,"url":78,"logo":80},{"@type":81,"url":82},"ImageObject","https:\u002F\u002Fprecursorintelligence.com\u002Fimg\u002Flogos\u002Feplogo.png",{"@type":84,"name":6,"description":85,"additionalType":86},"Thing","Cybersecurity Vulnerability","https:\u002F\u002Fschema.org\u002FSoftwareBug",{"@type":88,"@id":89},"WebPage","https:\u002F\u002Fprecursorintelligence.com\u002Fwhat-is\u002Fcve-2019-11495","Cybersecurity","CVE-2019-11495, CVE-2019-11495 vulnerability, CVE-2019-11495 security, critical severity vulnerability, cybersecurity, vulnerability analysis, security advisory, CVE database, threat intelligence, security research",[93],{"Operator":27,"Negate":27,"Nodes":94},[95],{"Operator":96,"Negate":27,"CPEMatch":97},"OR",[98],{"Vulnerable":4,"Criteria":47,"MatchCriteriaID":99,"VersionStartExcluding":27,"VersionStartIncluding":27,"VersionEndExcluding":27,"VersionEndIncluding":27},"58E4463C-BC06-4031-B659-DC5A0721CC81",[],[],{"lastModified":11,"cacheTime":103,"version":33},1792369573371,{"score":105,"band":106,"action":107,"scoredAt":108},55,"Medium","Plan remediation","2026-10-16T06:46:49.942561+00:00"]