CVE-2023-2190 : What You Need to Know

This CVE record details an authorization bypass vulnerability in GitLab affecting versions 13.10 to 15.11.10, 16.0 to 16.0.6, and 16.1 to 16.1.1. This vulnerability could allow users to view new commits to private projects in a fork created while the project was public.

Understanding CVE-2023-2190

The CVE-2023-2190 vulnerability in GitLab raises concerns about unauthorized access to private project commits through a specific user-controlled key.

What is CVE-2023-2190?

CVE-2023-2190 refers to an authorization bypass vulnerability that could potentially expose new commits in private projects within GitLab instances. This flaw allows users to access sensitive information illegitimately.

The Impact of CVE-2023-2190

The impact of CVE-2023-2190 could lead to unauthorized access to private project commits, compromising the confidentiality of code changes in GitLab repositories.

Technical Details of CVE-2023-2190

The technical details of CVE-2023-2190 highlight the vulnerability description, affected systems, and the exploitation mechanism.

Vulnerability Description

The vulnerability lies in GitLab versions specified, enabling users to view new commits to private projects in a fork created while the project was public, bypassing authorization controls.

Affected Systems and Versions

GitLab versions 13.10 to 15.11.10, 16.0 to 16.0.6, and 16.1 to 16.1.1 are impacted by this authorization bypass vulnerability.

Exploitation Mechanism

The exploitation of CVE-2023-2190 involves leveraging the user-controlled key to access new commits in private projects within the GitLab platform.

Mitigation and Prevention

To address CVE-2023-2190 and prevent unauthorized access to private project commits, users should take immediate steps and adopt long-term security practices.

Immediate Steps to Take

Users are advised to upgrade to GitLab versions 16.1.1, 16.0.6, 15.11.10, or newer to mitigate the risk associated with the authorization bypass vulnerability.

Long-Term Security Practices

Implementing robust access control mechanisms and regularly monitoring user privileges can enhance the overall security posture of GitLab instances, reducing the likelihood of similar vulnerabilities being exploited.

Patching and Updates

Regularly applying software patches and updates issued by GitLab is essential to stay protected against known vulnerabilities and ensure the security of the GitLab environment.