PT-2021-22750 · Gitlab · Gitlab Ce/Ee+1

S4Nderdevelopment · Published 2021-11-04 · Updated 2024-03-06 · CVE-2021-39903

Positive Technologies (AI Summary)

CVSS v3.1

6.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions GitLab CE/EE versions 13.0 and later

Description A privileged user can change the visibility level of a group or a project to a restricted option through an API call, even after the instance administrator sets that visibility option as restricted in settings. This issue affects all versions of GitLab CE/EE since version 13.0.

Recommendations For GitLab CE/EE versions 13.0 and later, restrict access to the API endpoint that allows changing the visibility level of groups or projects until a patch is available. As a temporary workaround, consider disabling the ability for privileged users to modify visibility settings for groups and projects.

Fix

Related Identifiers

BIT-GITLAB-2021-39903

CVE-2021-39903

Affected Products

Gitlab

Gitlab Ce/Ee

References · 11

• https://nvd.nist.gov/vuln/detail/CVE-2021-39903 · Security Note
• https://ubuntu.com/security/CVE-2021-39903 · Vendor Advisory
• https://osv.dev/vulnerability/BIT-gitlab-2021-39903 · Vendor Advisory
• https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39903.json · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-39903 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2021-39903 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2021-39903 · Vendor Advisory
• https://t.me/cibsecurity/31864 · Telegram Post
• https://gitlab.com/gitlab-org/gitlab/-/issues/300017 · Note
• https://hackerone.com/reports/1086781 · Note
• https://t.me/cvenotify/23000 · Telegram Post