CVE-2021-22248 : Security Advisory and Response

A detailed analysis of CVE-2021-22248, a vulnerability found in GitLab affecting versions 13.12 to 14.1. This article covers its impact, technical details, and mitigation strategies.

Understanding CVE-2021-22248

This section provides insights into the vulnerability discovered in GitLab versions 13.12 to 14.1, affecting the authorization settings on the pipelines page.

What is CVE-2021-22248?

The vulnerability in GitLab CE/EE versions since 13.12 allowed unauthorized users to access pipeline information for restricted projects.

The Impact of CVE-2021-22248

The impact of this vulnerability is rated as MEDIUM with a CVSS base score of 5.3. It could lead to unauthorized access and viewing of pipeline data in GitLab CE/EE instances.

Technical Details of CVE-2021-22248

In this section, we delve into the specifics of the vulnerability, including its description, affected systems, and exploitation mechanism.

Vulnerability Description

The vulnerability stemmed from improper authorization settings on the pipelines page in GitLab CE/EE, enabling unauthorized users to view restricted pipeline information.

Affected Systems and Versions

GitLab versions between 13.12 to 14.1 are affected by this vulnerability if pipelines have restricted access.

Exploitation Mechanism

Unauthorized users could exploit this vulnerability to access pipeline details in public projects that are restricted to members only.

Mitigation and Prevention

Learn how to secure your GitLab instance and protect it from CVE-2021-22248 with immediate steps and long-term security practices.

Immediate Steps to Take

Administrators should apply the necessary patches and review authorization settings to prevent unauthorized access to pipeline data.

Long-Term Security Practices

Implement strict access controls, regularly review permissions, and educate users on secure coding and data handling practices.

Patching and Updates

Ensure that GitLab is kept up to date with the latest security patches to mitigate the risks associated with CVE-2021-22248.