CVE-2020-5415

Published: Aug 12, 2020Modified: Jun 17, 2026

10.0

Vector

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

Exploitability: 3.9 / Impact: 5.8

Source: NVD

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.

Affected (2)

Products: Pivotal Software: Concourse

Pivotal Software

1 product

Configuration A

2 vulnerable

Vulnerable Software	Affected Versions
Pivotal Software Concourse	Before 6.3.1
Pivotal Software Concourse	From 6.4.0 to 6.4.1

Related CWEs

Authentication Bypass by Spoofing

This attack-focused weakness is caused by incorrectly implemented authentication schemes that are subject to spoofing attacks.

References (4)

https://github.com/concourse/concourse/security/advisories/GHSA-627p-rr78-99rj

Source: security@pivotal.io

PatchThird Party Advisory

https://tanzu.vmware.com/security/cve-2020-5415

Source: security@pivotal.io

Third Party Advisory

https://github.com/concourse/concourse/security/advisories/GHSA-627p-rr78-99rj

Source: af854a3a-2127-422b-91ae-364da2661108

PatchThird Party Advisory

https://tanzu.vmware.com/security/cve-2020-5415

Source: af854a3a-2127-422b-91ae-364da2661108

Third Party Advisory

Timeline

No history available yet.