PT-2021-22735 · Gitlab · Gitlab Ce/Ee+1

Ashish_R_Padelkar · Published 2021-10-05 · Updated 2024-03-06 · CVE-2021-39889

Positive Technologies (AI Summary)

CVSS v3.1

4.3

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions: GitLab EE versions 14.1 and later

Description: The issue is related to an insecure direct object reference vulnerability. An endpoint may reveal the protected branch name to a malicious user who makes a crafted API call with the ID of the protected branch.

Recommendations: For GitLab EE versions 14.1 and later, consider restricting access to the vulnerable endpoint until a patch is available. As a temporary workaround, avoid using the ID of the protected branch in crafted API calls to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

IDOR

Weakness Enumeration

CWE-639

Related Identifiers

BIT-GITLAB-2021-39889

CVE-2021-39889

Affected Products

Gitlab

Gitlab Ce/Ee

References · 10

• https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39889.json · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2021-39889 · Security Note
• https://osv.dev/vulnerability/BIT-gitlab-2021-39889 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-39889 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2021-39889 · Vendor Advisory
• https://ubuntu.com/security/CVE-2021-39889 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-39889 · Security Note
• https://hackerone.com/reports/1294017 · Note
• https://t.me/cibsecurity/29986 · Telegram Post
• https://gitlab.com/gitlab-org/gitlab/-/issues/338062 · Note