{"affected":[{"affectedData":[{"product":"Concourse","vendor":"VMware Tanzu","versions":[{"lessThan":"6.4.1","status":"affected","version":"6.4","versionType":"custom"},{"lessThan":"6.3.1","status":"affected","version":"6.3","versionType":"custom"}]}],"source":"security@pivotal.io"}],"configurations":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:a:pivotal_software:concourse:*:*:*:*:*:*:*:*","matchCriteriaId":"3D808A55-A17A-4DB6-BBA0-5D7166BD2755","versionEndExcluding":"6.3.1","vulnerable":true},{"criteria":"cpe:2.3:a:pivotal_software:concourse:*:*:*:*:*:*:*:*","matchCriteriaId":"6D28012E-8883-447B-92A0-478ABCF19AF8","versionEndExcluding":"6.4.1","versionStartIncluding":"6.4.0","vulnerable":true}],"negate":false,"operator":"OR"}]}],"cveTags":[],"descriptions":[{"lang":"en","value":"Concourse, versions prior to 6.3.1 and 6.4.1, in installations which use the GitLab auth connector, is vulnerable to identity spoofing by way of configuring a GitLab account with the same full name as another user who is granted access to a Concourse team. GitLab groups do not have this vulnerability, so GitLab users may be moved into groups which are then configured in the Concourse team."},{"lang":"es","value":"Concourse, versiones anteriores a 6.3.1 y 6.4.1, en instalaciones que utilizan el conector de autenticación de GitLab, es vulnerable a la suplantación de identidad mediante la configuración de una cuenta de GitLab con el mismo nombre completo que otro usuario al que se le concede acceso a un equipo de Concourse. Los grupos de GitLab no tienen esta vulnerabilidad, por lo que los usuarios de GitLab pueden ser movidos a grupos que luego son configurados en el equipo de Concourse"}],"id":"CVE-2020-5415","lastModified":"2026-06-17T03:21:27.147","metrics":{"cvssMetricV2":[{"acInsufInfo":false,"baseSeverity":"MEDIUM","cvssData":{"accessComplexity":"LOW","accessVector":"NETWORK","authentication":"NONE","availabilityImpact":"NONE","baseScore":6.4,"confidentialityImpact":"PARTIAL","integrityImpact":"PARTIAL","vectorString":"AV:N/AC:L/Au:N/C:P/I:P/A:N","version":"2.0"},"exploitabilityScore":10.0,"impactScore":4.9,"obtainAllPrivilege":false,"obtainOtherPrivilege":false,"obtainUserPrivilege":false,"source":"nvd@nist.gov","type":"Primary","userInteractionRequired":false}],"cvssMetricV30":[{"cvssData":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"LOW","baseScore":10.0,"baseSeverity":"CRITICAL","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"CHANGED","userInteraction":"NONE","vectorString":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:L","version":"3.0"},"exploitabilityScore":3.9,"impactScore":6.0,"source":"security@pivotal.io","type":"Secondary"}],"cvssMetricV31":[{"cvssData":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":10.0,"baseSeverity":"CRITICAL","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"CHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N","version":"3.1"},"exploitabilityScore":3.9,"impactScore":5.8,"source":"nvd@nist.gov","type":"Primary"}]},"published":"2020-08-12T17:15:12.633","references":[{"source":"security@pivotal.io","tags":["Patch","Third Party Advisory"],"url":"https://github.com/concourse/concourse/security/advisories/GHSA-627p-rr78-99rj"},{"source":"security@pivotal.io","tags":["Third Party Advisory"],"url":"https://tanzu.vmware.com/security/cve-2020-5415"},{"source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch","Third Party Advisory"],"url":"https://github.com/concourse/concourse/security/advisories/GHSA-627p-rr78-99rj"},{"source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Third Party Advisory"],"url":"https://tanzu.vmware.com/security/cve-2020-5415"}],"sourceIdentifier":"security@pivotal.io","vulnStatus":"Modified","weaknesses":[{"description":[{"lang":"en","value":"CWE-290"}],"source":"security@pivotal.io","type":"Secondary"},{"description":[{"lang":"en","value":"CWE-290"}],"source":"nvd@nist.gov","type":"Primary"}]}