CVE-2019-19259 : Exploit Details and Defense Strategies

In versions 11.3 to 12.5 of GitLab Enterprise Edition (EE), there exists a vulnerability known as an Insecure Direct Object Reference (IDOR).

Understanding CVE-2019-19259

GitLab Enterprise Edition (EE) 11.3 and later through 12.5 allows an Insecure Direct Object Reference (IDOR).

What is CVE-2019-19259?

This CVE refers to a vulnerability in GitLab Enterprise Edition (EE) versions 11.3 to 12.5, where an Insecure Direct Object Reference (IDOR) can be exploited.

The Impact of CVE-2019-19259

Attackers can access unauthorized data or perform unauthorized actions within the application.
Sensitive information may be exposed, leading to potential data breaches.

Technical Details of CVE-2019-19259

Vulnerability Description

The vulnerability allows attackers to bypass authorization mechanisms and access restricted resources directly.

Affected Systems and Versions

GitLab Enterprise Edition (EE) versions 11.3 to 12.5 are affected.

Exploitation Mechanism

Attackers can manipulate object references to access unauthorized data or perform unauthorized actions.

Mitigation and Prevention

Immediate Steps to Take

Upgrade GitLab EE to a patched version.
Implement proper access controls and authorization mechanisms.

Long-Term Security Practices

Regularly monitor and audit access logs for suspicious activities.
Train developers and administrators on secure coding practices.
Conduct security assessments and penetration testing regularly.

Patching and Updates

Apply security patches provided by GitLab promptly to address the vulnerability.