CVE-2023-3932 : Vulnerability Insights and Analysis

An issue has been discovered in GitLab EE affecting multiple versions, allowing an attacker to run pipeline jobs as an arbitrary user via scheduled security scan policies.

Understanding CVE-2023-3932

This vulnerability in GitLab poses a significant risk as it enables unauthorized users to execute pipeline jobs through scheduled security scans.

What is CVE-2023-3932?

CVE-2023-3932 is a vulnerability in GitLab that affects versions 13.12 through 16.2.2. It allows attackers to run pipeline jobs as a different user through scheduled security scans, potentially leading to unauthorized access to sensitive data.

The Impact of CVE-2023-3932

The impact of CVE-2023-3932 is deemed as medium severity. If exploited, the vulnerability can result in high confidentiality and integrity impacts, potentially compromising the security of the affected systems.

Technical Details of CVE-2023-3932

The following technical details outline the vulnerability, affected systems, and exploitation mechanism:

Vulnerability Description

The vulnerability involves missing authorization in GitLab, specifically impacting versions ranging from 13.12 to 16.2.2. Attackers can leverage this flaw to execute pipeline jobs impersonating other users.

Affected Systems and Versions

GitLab EE versions 13.12 to 16.2.2 are vulnerable.
Versions 16.0.8, 16.1.3, and 16.2.2 are affected.
The issue is classified under CWE-862 (Missing Authorization).

Exploitation Mechanism

Attackers can exploit this vulnerability by creating and executing pipeline jobs through scheduled security scans, masquerading as a different user within the GitLab environment.

Mitigation and Prevention

To address CVE-2023-3932 and enhance system security, the following mitigation measures should be implemented:

Immediate Steps to Take

Upgrade GitLab EE to versions 16.0.8, 16.1.3, 16.2.2, or above to mitigate the vulnerability.
Monitor and review scheduled security scan policies for any unauthorized pipeline job executions.

Long-Term Security Practices

Implement regular security audits and assessments of GitLab configurations.
Enforce strict access controls and authorization mechanisms to prevent unauthorized job executions.

Patching and Updates

Regularly apply security patches and updates provided by GitLab to address known vulnerabilities and enhance system security.
Stay informed about security advisories and bug fixes released by GitLab to proactively protect against emerging threats.