[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fRH76kgjWDne_lu0a8uXSMwwyOdd5WOb8tWT1HQa5TAA":3,"g5a-risk:CVE-2020-5409":123},{"success":4,"data":5,"meta":121},true,{"cveId":6,"title":7,"description":8,"shortDescription":9,"publishedDate":10,"lastModified":11,"cvssScore":12,"cvssVector":13,"cvssMetrics":14,"epssScore":50,"epssPercentile":27,"epssTimeSeries":51,"severity":52,"affectedProducts":53,"affectedProductsCount":59,"references":60,"referencesCount":59,"weaknesses":66,"weaknessesCount":59,"isActivelyExploited":75,"cisaInfo":27,"otxData":27,"relatedBlogPosts":76,"seoMetadata":77,"configurations":102,"relatedVendorCves":119,"notableEvents":120},"CVE-2020-5409","What is CVE-2020-5409?","Pivotal Concourse, most versions prior to 6.0.0, allows redirects to untrusted websites in its login flow. A remote unauthenticated attacker could convince a user to click on a link using the OAuth redirect link with an untrusted website and gain access to that user's access token in Concourse. (This issue is similar to, but distinct from, CVE-2018-15798.)","Pivotal Concourse, most versions prior to 6.0.0, allows redirects to untrusted websites in its login flow. A remote unauthenticated attacker could convince a...","2020-05-14T00:15:11.603","2020-05-15T13:43:18.44",6.1,"CVSS:3.1\u002FAV:N\u002FAC:L\u002FPR:N\u002FUI:R\u002FS:C\u002FC:L\u002FI:L\u002FA:N",{"CVSSMetricV31":15,"CVSSMetricV30":30,"CVSSMetricV2":41,"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":24,"Scope":25,"ConfidentialityImpact":22,"IntegrityImpact":22,"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","REQUIRED","CHANGED","MEDIUM",null,2.8,2.7,[31],{"Source":32,"Type":33,"CVSSData":34,"ExploitabilityScore":28,"ImpactScore":40},"security@pivotal.io","Secondary",{"Version":35,"VectorString":36,"AttackVector":21,"AttackComplexity":22,"PrivilegesRequired":23,"UserInteraction":24,"Scope":37,"ConfidentialityImpact":22,"IntegrityImpact":22,"AvailabilityImpact":38,"BaseScore":39,"BaseSeverity":38,"ExploitCodeMaturity":27,"RemediationLevel":27,"ReportConfidence":27,"TemporalScore":27,"TemporalSeverity":27,"ConfidentialityRequirement":27,"IntegrityRequirement":27,"AvailabilityRequirement":27,"ModifiedAttackVector":27,"ModifiedAttackComplexity":27,"ModifiedPrivilegesRequired":27,"ModifiedUserInteraction":27,"ModifiedScope":27,"ModifiedConfidentialityImpact":27,"ModifiedIntegrityImpact":27,"ModifiedAvailabilityImpact":27,"EnvironmentalScore":27,"EnvironmentalSeverity":27},"3.0","CVSS:3.0\u002FAV:N\u002FAC:L\u002FPR:N\u002FUI:R\u002FS:U\u002FC:L\u002FI:L\u002FA:H","UNCHANGED","HIGH",7.6,4.7,[42],{"Source":17,"Type":18,"CVSSData":43,"BaseSeverity":26,"ExploitabilityScore":48,"ImpactScore":49,"ACInsufInfo":27,"ObtainAllPrivilege":27,"ObtainUserPrivilege":27,"ObtainOtherPrivilege":27,"UserInteractionRequired":4},{"Version":44,"VectorString":45,"AccessVector":21,"AccessComplexity":26,"Authentication":23,"ConfidentialityImpact":46,"IntegrityImpact":46,"AvailabilityImpact":23,"BaseScore":47,"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","PARTIAL",5.8,8.6,4.9,0.00907,[50,50,50,50,50,50,50],"Medium",[54],{"vendor":55,"product":56,"version":57,"criteria":58,"vulnerable":4},"pivotal_software","concourse","*","cpe:2.3:a:pivotal_software:concourse:*:*:*:*:*:*:*:*",1,[61],{"url":62,"source":63,"tags":64},"https:\u002F\u002Ftanzu.vmware.com\u002Fsecurity\u002Fcve-2020-5409","Vmware",[65],"Vendor Advisory",[67],{"id":68,"name":69,"description":70,"extendedDescription":71,"status":72,"abstraction":73,"structure":74},"CWE-601","URL Redirection to Untrusted Site ('Open Redirect')","A web application accepts a user-controlled input that specifies a link to an external site, and uses that link in a Redirect. This simplifies phishing attacks.","An http parameter may contain a URL value and could cause the web application to redirect the request to the specified URL. By modifying the URL value to a malicious site, an attacker may successfully launch a phishing scam and steal user credentials. Because the server name in the modified link is identical to the original site, phishing attempts have a more trustworthy appearance. Whether this issue poses a vulnerability will be subject to the intended behavior of the application. For example, a search engine might intentionally provide redirects to arbitrary URLs.","Draft","Base","Simple",false,[],{"title":78,"metaDescription":79,"keywords":80,"canonicalUrl":81,"structuredData":82},"What is CVE-2020-5409? Vulnerability Analysis | Security Advisory | Precursor Intelligence","Comprehensive analysis of CVE-2020-5409, a medium severity cyber security vulnerability from 2020. Pivotal Concourse, most versions prior to 6.0.0, allows re...","CVE-2020-5409, CVE-2020-5409 vulnerability, CVE-2020-5409 security, medium severity vulnerability, cybersecurity, vulnerability analysis, security advisory, CVE database, threat intelligence, security research, vulnerability assessment, cyber threats, 2020, CVSS score, exploit, patch, remediation, pivotal_software security, concourse vulnerability","\u002Fwhat-is\u002Fcve-2020-5409",{"@context":83,"@type":84,"headline":78,"description":79,"datePublished":10,"dateModified":11,"author":85,"publisher":89,"about":93,"mainEntityOfPage":97,"articleSection":100,"keywords":101},"https:\u002F\u002Fschema.org","TechArticle",{"@type":86,"name":87,"url":88},"Organization","Precursor Intelligence","https:\u002F\u002Fprecursorintelligence.com",{"@type":86,"name":87,"url":88,"logo":90},{"@type":91,"url":92},"ImageObject","https:\u002F\u002Fprecursorintelligence.com\u002Fimg\u002Flogos\u002Feplogo.png",{"@type":94,"name":6,"description":95,"additionalType":96},"Thing","Cybersecurity Vulnerability","https:\u002F\u002Fschema.org\u002FSoftwareBug",{"@type":98,"@id":99},"WebPage","https:\u002F\u002Fprecursorintelligence.com\u002Fwhat-is\u002Fcve-2020-5409","Cybersecurity","CVE-2020-5409, CVE-2020-5409 vulnerability, CVE-2020-5409 security, medium severity vulnerability, cybersecurity, vulnerability analysis, security advisory, CVE database, threat intelligence, security research",[103],{"Operator":27,"Negate":27,"Nodes":104},[105],{"Operator":106,"Negate":27,"CPEMatch":107},"OR",[108,111,115],{"Vulnerable":4,"Criteria":58,"MatchCriteriaID":109,"VersionStartExcluding":27,"VersionStartIncluding":27,"VersionEndExcluding":110,"VersionEndIncluding":27},"9B663221-21E6-4138-ABAB-21B2514B59C7","5.2.8",{"Vulnerable":4,"Criteria":58,"MatchCriteriaID":112,"VersionStartExcluding":27,"VersionStartIncluding":113,"VersionEndExcluding":114,"VersionEndIncluding":27},"D411C4A8-DF2A-4D58-B1D4-2ACA07C06174","5.3.0","5.5.10",{"Vulnerable":4,"Criteria":58,"MatchCriteriaID":116,"VersionStartExcluding":27,"VersionStartIncluding":117,"VersionEndExcluding":118,"VersionEndIncluding":27},"85DC4DE9-2A70-48BE-9C03-CF7CD8A70D7D","5.6.0","5.8.1",[],[],{"lastModified":11,"cacheTime":122,"version":44},1792450464729,{"score":124,"band":125,"action":126,"scoredAt":127},24,"Low","Monitor","2026-10-16T06:48:37.070188+00:00"]