{"id":"BIT-concourse-2020-5415","summary":"Concourse's GitLab auth allows impersonation","details":"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.","aliases":["CVE-2020-5415","GHSA-627p-rr78-99rj"],"modified":"2026-09-08T08:45:57.038775467Z","published":"2024-03-06T10:51:03.790Z","database_specific":{"severity":"Critical","cpes":["cpe:2.3:a:pivotal_software:concourse:*:*:*:*:*:*:*:*"]},"references":[{"type":"ADVISORY","url":"https://github.com/concourse/concourse/security/advisories/GHSA-627p-rr78-99rj"},{"type":"ADVISORY","url":"https://tanzu.vmware.com/security/cve-2020-5415"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2020-5415"}],"affected":[{"package":{"name":"concourse","ecosystem":"Bitnami","purl":"pkg:bitnami/concourse"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"6.3.1"},{"introduced":"6.4.0"},{"fixed":"6.4.1"}]}],"database_specific":{"source":"https://github.com/bitnami/vulndb/tree/main/data/concourse/BIT-concourse-2020-5415.json"},"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N"}]}],"schema_version":"1.9.0"}