PT-2021-22738 · Gitlab · Gitlab Ce/Ee+1

Published 2021-10-05 · Updated 2024-03-06 · CVE-2021-39891

Positive Technologies (AI Summary)

CVSS v3.1

5.9

Medium

Base vector

AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:N

Name of the Vulnerable Software and Affected Versions: GitLab CE/EE versions 8.0 and later

Description: The issue arises when an admin impersonates a user in GitLab CE/EE, resulting in access tokens not being cleared after the impersonation ends. This may lead to unnecessary sensitive information disclosure.

Recommendations: For GitLab CE/EE versions 8.0 and later, ensure that access tokens created during admin impersonation of a user are properly cleared at the end of the impersonation session to prevent sensitive information disclosure.

Fix

Weakness Enumeration

CWE-212

Related Identifiers

BIT-GITLAB-2021-39891

CVE-2021-39891

Affected Products

Gitlab

Gitlab Ce/Ee

References · 9

• https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39891.json · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2021-39891 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2021-39891 · Vendor Advisory
• https://osv.dev/vulnerability/BIT-gitlab-2021-39891 · Vendor Advisory
• https://ubuntu.com/security/CVE-2021-39891 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-39891 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-39891 · Security Note
• https://t.me/cibsecurity/29985 · Telegram Post
• https://gitlab.com/gitlab-org/gitlab/-/issues/335137 · Note