CVE-2020-13284 : Exploit Details and Defense Strategies

A vulnerability was discovered in GitLab versions before 13.1.10, 13.2.8, and 13.3.4, affecting API Authorization Using Outdated CI Job Token.

Understanding CVE-2020-13284

This CVE involves an incorrect authorization issue in GitLab, impacting versions prior to 13.1.10, 13.2.8, and 13.3.4.

What is CVE-2020-13284?

The vulnerability in GitLab versions before 13.1.10, 13.2.8, and 13.3.4 allows unauthorized access via outdated CI job tokens.

The Impact of CVE-2020-13284

CVSS Score: 6.5 (Medium Severity)
Attack Vector: Network
Confidentiality Impact: High
Integrity Impact: High
Privileges Required: High

Technical Details of CVE-2020-13284

This section provides detailed technical information about the vulnerability.

Vulnerability Description

The vulnerability involves incorrect authorization in GitLab, enabling unauthorized access using outdated CI job tokens.

Affected Systems and Versions

Affected Product: GitLab
Affected Versions:
=11.3, <13.1.10

=13.2, <13.2.8

=13.3, <13.3.4

Exploitation Mechanism

The vulnerability can be exploited by attackers to gain unauthorized access through the misuse of outdated CI job tokens.

Mitigation and Prevention

Protect your systems from CVE-2020-13284 with these mitigation strategies.

Immediate Steps to Take

Upgrade GitLab to versions 13.1.10, 13.2.8, or 13.3.4 to eliminate the vulnerability.
Monitor and revoke outdated CI job tokens regularly.

Long-Term Security Practices

Implement regular security audits and assessments to identify and address authorization issues.
Educate users on secure CI/CD practices and token management.

Patching and Updates

Stay informed about security updates from GitLab and apply patches promptly to secure your systems.