CVE-2024-4024: gitlab Auth Bypass — Exploit

Description

An issue has been discovered in GitLab CE/EE affecting all versions starting from 7.8 before 16.9.6, all versions starting from 16.10 before 16.10.4, all versions starting from 16.11 before 16.11.1. Under certain conditions, an attacker with their Bitbucket account credentials may be able to take over a GitLab account linked to another user's Bitbucket account, if Bitbucket is used as an OAuth 2.0 provider on GitLab.

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CVSS v3.1 Score

7.3

HIGH

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

Weakness Type (CWE)

CWE-302 CWE-302

CWE-287 Improper Authentication

Affected Products

Vendor	Product	Versions
gitlab	gitlab	7.8.0 — 16.9.6
gitlab	gitlab	7.8.0 — 16.9.6
gitlab	gitlab	16.10.0 — 16.10.4
gitlab	gitlab	16.10.0 — 16.10.4
gitlab	gitlab	All
gitlab	gitlab	All

References

Exploits

https://gitlab.com/gitlab-org/gitlab/-/issues/452426 https://gitlab.com/gitlab-org/gitlab/-/issues/452426

Frequently Asked Questions

What is CVE-2024-4024? +

An issue has been discovered in GitLab CE/EE affecting all versions starting from 7.8 before 16.9.6, all versions starting from 16.10 before 16.10.4, all versions starting from 16.11 before 16.11.1. Under certain conditions, an attacker with their Bitbucket account credentials may be able to take over a GitLab account linked to another user's Bitbucket account, if Bitbucket is used as an OAuth 2.0 provider on GitLab. It has a CVSS v3.1 base score of 7.3 (HIGH).

How severe is CVE-2024-4024? +

CVE-2024-4024 has a CVSS v3.1 score of 7.3 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

What products are affected by CVE-2024-4024? +

CVE-2024-4024 affects products from gitlab, specifically: gitlab. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2024-4024? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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