CVE-2019-6794 : Exploit Details and Defense Strategies

A vulnerability has been identified in GitLab Community and Enterprise Edition versions prior to 11.5.8, 11.6.x prior to 11.6.6, and 11.7.x prior to 11.7.1 that allows information disclosure.

Understanding CVE-2019-6794

This CVE pertains to a security issue in GitLab versions before specific releases that could lead to the exposure of sensitive information.

What is CVE-2019-6794?

CVE-2019-6794 is a vulnerability in GitLab Community and Enterprise Editions that enables a guest user in a project to access the latest status of the default branch commit, potentially leading to information disclosure.

The Impact of CVE-2019-6794

The vulnerability could result in unauthorized access to sensitive project information by guest users, compromising data confidentiality and integrity.

Technical Details of CVE-2019-6794

This section provides more in-depth technical insights into the CVE.

Vulnerability Description

The vulnerability in GitLab versions before 11.5.8, 11.6.x before 11.6.6, and 11.7.x before 11.7.1 allows guest users to view the latest commit status of the default branch, leading to potential information disclosure.

Affected Systems and Versions

GitLab Community and Enterprise Edition versions prior to 11.5.8
GitLab 11.6.x versions before 11.6.6
GitLab 11.7.x versions before 11.7.1

Exploitation Mechanism

Guest users in a project can exploit this vulnerability to access the latest status of the default branch commit, potentially exposing sensitive project information.

Mitigation and Prevention

Protecting systems from CVE-2019-6794 requires immediate actions and long-term security practices.

Immediate Steps to Take

Upgrade GitLab to versions 11.5.8, 11.6.6, or 11.7.1 or newer to mitigate the vulnerability.
Restrict guest user access to sensitive project information.

Long-Term Security Practices

Regularly monitor and audit user permissions within GitLab.
Educate users on data security best practices to prevent unauthorized access.

Patching and Updates

Apply security patches and updates provided by GitLab promptly to address known vulnerabilities.