[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fgRKY2mkqKUtoQ-pS3Q_q81x4qC2XVAYboAAN7Ywf2KI":3,"g5a-risk:CVE-2019-5421":117},{"success":4,"data":5,"meta":115},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":61,"weaknesses":62,"weaknessesCount":61,"isActivelyExploited":77,"cisaInfo":27,"otxData":27,"relatedBlogPosts":78,"seoMetadata":79,"configurations":104,"relatedVendorCves":113,"notableEvents":114},"CVE-2019-5421","What is CVE-2019-5421?","Plataformatec Devise version 4.5.0 and earlier, using the lockable module contains a CWE-367 vulnerability in The `Devise::Models::Lockable` class, more specifically at the `#increment_failed_attempts` method. File location: lib\u002Fdevise\u002Fmodels\u002Flockable.rb that can result in Multiple concurrent requests can prevent an attacker from being blocked on brute force attacks. This attack appear to be exploitable via Network connectivity - brute force attacks. This vulnerability appears to have been fixed in 4.6.0 and later.","Plataformatec Devise version 4.5.0 and earlier, using the lockable module contains a CWE-367 vulnerability in The `Devise::Models::Lockable` class, more spec...","2019-04-03T15:29:01.663","2020-10-16T19:17:22.553",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",7.5,10,6.4,0.01556,[39,39,39,39,39,39,39],"Critical",[43],{"vendor":44,"product":45,"version":46,"criteria":47,"vulnerable":4},"plataformatec","devise","*","cpe:2.3:a:plataformatec:devise:*:*:*:*:*:*:*:*",1,[50,57],{"url":51,"source":52,"tags":53},"https:\u002F\u002Fgithub.com\u002Fplataformatec\u002Fdevise\u002Fissues\u002F4981","GitHub",[54,55,56],"Exploit","Issue Tracking","Third Party Advisory",{"url":58,"source":52,"tags":59},"https:\u002F\u002Fgithub.com\u002Fplataformatec\u002Fdevise\u002Fpull\u002F4996",[60,56],"Patch",2,[63,71],{"id":64,"name":65,"description":66,"extendedDescription":67,"status":68,"abstraction":69,"structure":70},"CWE-307","Improper Restriction of Excessive Authentication Attempts","The product does not implement sufficient measures to prevent multiple failed authentication attempts within a short time frame, making it more susceptible to brute force attacks.","","Draft","Base","Simple",{"id":72,"name":73,"description":74,"extendedDescription":75,"status":76,"abstraction":69,"structure":70},"CWE-367","Time-of-check Time-of-use (TOCTOU) Race Condition","The product checks the state of a resource before using that resource, but the resource's state can change between the check and the use in a way that invalidates the results of the check. This can cause the product to perform invalid actions when the resource is in an unexpected state.","This weakness can be security-relevant when an attacker can influence the state of the resource between check and use. This can happen with shared resources such as files, memory, or even variables in multithreaded programs.","Incomplete",false,[],{"title":80,"metaDescription":81,"keywords":82,"canonicalUrl":83,"structuredData":84},"What is CVE-2019-5421? Vulnerability Analysis | Security Advisory | Precursor Intelligence","Comprehensive analysis of CVE-2019-5421, a critical severity cyber security vulnerability from 2019. Plataformatec Devise version 4.5.0 and earlier, using th...","CVE-2019-5421, CVE-2019-5421 vulnerability, CVE-2019-5421 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, plataformatec security, devise vulnerability","\u002Fwhat-is\u002Fcve-2019-5421",{"@context":85,"@type":86,"headline":80,"description":81,"datePublished":10,"dateModified":11,"author":87,"publisher":91,"about":95,"mainEntityOfPage":99,"articleSection":102,"keywords":103},"https:\u002F\u002Fschema.org","TechArticle",{"@type":88,"name":89,"url":90},"Organization","Precursor Intelligence","https:\u002F\u002Fprecursorintelligence.com",{"@type":88,"name":89,"url":90,"logo":92},{"@type":93,"url":94},"ImageObject","https:\u002F\u002Fprecursorintelligence.com\u002Fimg\u002Flogos\u002Feplogo.png",{"@type":96,"name":6,"description":97,"additionalType":98},"Thing","Cybersecurity Vulnerability","https:\u002F\u002Fschema.org\u002FSoftwareBug",{"@type":100,"@id":101},"WebPage","https:\u002F\u002Fprecursorintelligence.com\u002Fwhat-is\u002Fcve-2019-5421","Cybersecurity","CVE-2019-5421, CVE-2019-5421 vulnerability, CVE-2019-5421 security, critical severity vulnerability, cybersecurity, vulnerability analysis, security advisory, CVE database, threat intelligence, security research",[105],{"Operator":27,"Negate":27,"Nodes":106},[107],{"Operator":108,"Negate":27,"CPEMatch":109},"OR",[110],{"Vulnerable":4,"Criteria":47,"MatchCriteriaID":111,"VersionStartExcluding":27,"VersionStartIncluding":27,"VersionEndExcluding":27,"VersionEndIncluding":112},"F07D86F3-1A2C-4562-830E-F88779AF55B7","4.5.0",[],[],{"lastModified":11,"cacheTime":116,"version":33},1792258761320,{"score":118,"band":119,"action":120,"scoredAt":121},61,"Medium","Plan remediation","2026-10-16T06:45:52.400007+00:00"]