CVE-2021-22176 Explained : Impact and Mitigation

An overview of CVE-2021-22176 affecting GitLab versions.

Understanding CVE-2021-22176

This CVE identifies an issue in GitLab versions that can result in improper access control.

What is CVE-2021-22176?

An issue has been discovered in GitLab affecting all versions starting with 3.0.1. Improper access control allows demoted project members to access details on authored merge requests.

The Impact of CVE-2021-22176

The vulnerability has a CVSS base score of 4.2, with a medium severity rating. It can lead to unauthorized access to sensitive information.

Technical Details of CVE-2021-22176

Detailed technical information about the vulnerability.

Vulnerability Description

The vulnerability in GitLab allows demoted project members to gain unauthorized access to details on authored merge requests.

Affected Systems and Versions

GitLab versions >=3.0.1 and <13.8.4, <13.7.7, and <13.6.7 are affected by this security issue.

Exploitation Mechanism

Improper access control mechanisms in GitLab can be exploited by demoted project members to view sensitive merge request details.

Mitigation and Prevention

Steps to mitigate and prevent exploitation of CVE-2021-22176.

Immediate Steps to Take

Users are advised to update GitLab to versions above 13.8.4, 13.7.7, and 13.6.7 to patch the vulnerability.

Long-Term Security Practices

Enforcing strict access controls, regular security audits, and employee training on access policies can enhance security.

Patching and Updates

Regularly monitor GitLab security updates and apply patches promptly to protect against known vulnerabilities.