VULNERABILITY INTELLIGENCE

CVE-2020-5415

CVSS score10 CRITICAL

EPSS probability1.22%

CISA KEVNot currently listed

Published2020-08-12

Last modified2026-06-17

CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N

Description

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.

Weakness classification

security@pivotal.io: CWE-290
nvd@nist.gov: CWE-290

Primary references

security@pivotal.io — Patch, Third Party Advisory
security@pivotal.io — Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 — Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 — Third Party Advisory