CVE-2020-5415

CRITICAL EPSS 64.8%
Published Aug 12, 20205y ago · Modified Jun 17, 20262w ago
10.0 CVSS 3.1
Critical
Find Similar
Published Aug 12, 2020 5y ago
Last Modified Jun 17, 2026 2w ago

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.

CVSS Details

Base Score
10.0
Exploitability
3.9
Impact
5.8
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Changed
Confidentiality High
Integrity High
Availability None

Threat Intelligence

EPSS Exploit Probability
64.8% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-290

Affected Products 2

VendorProductVersionRange
pivotal_softwareconcourse* <6.3.1
pivotal_softwareconcourse*≥6.4.0  –  <6.4.1

References 2

  • github.com https://github.com/concourse/concourse/security/advisories/GHSA-627p-rr78-99rj
    PatchThird Party Advisory
  • tanzu.vmware.com https://tanzu.vmware.com/security/cve-2020-5415
    Third Party Advisory

Remediation

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