CVE-2023-3915

Public Exploit
Incorrect Execution-Assigned Permissions in GitLab

Description

An issue has been discovered in GitLab EE affecting all versions starting from 16.1 before 16.1.5, all versions starting from 16.2 before 16.2.5, all versions starting from 16.3 before 16.3.1. If an external user is given an owner role on any group, that external user may escalate their privileges on the instance by creating a service account in that group. This service account is not classified as external and may be used to access internal projects.

Remediation

Solution:

  • Upgrade to versions 16.1.5, 16.2.5, 16.3.1 or above.

Categories

6.5
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.03%
Affected: GitLab GitLab
Published at:
Updated at:

References

Link Tags
https://gitlab.com/gitlab-org/gitlab/-/issues/417664 issue tracking broken link
https://hackerone.com/reports/2040834 broken link exploit permissions required technical description

Frequently Asked Questions

What is the severity of CVE-2023-3915?
CVE-2023-3915 has been scored as a medium severity vulnerability.
How to fix CVE-2023-3915?
To fix CVE-2023-3915: Upgrade to versions 16.1.5, 16.2.5, 16.3.1 or above.
Is CVE-2023-3915 being actively exploited in the wild?
It is possible that CVE-2023-3915 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-3915?
CVE-2023-3915 affects GitLab GitLab.
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