CVE-2020-13296 Explained : Impact and Mitigation

An issue has been discovered in GitLab that affects multiple versions, leading to Improper Access Control for Deploy Tokens.

Understanding CVE-2020-13296

This CVE involves a vulnerability in GitLab that allows improper access control for deploy tokens, impacting various versions of the software.

What is CVE-2020-13296?

CVE-2020-13296 is a security vulnerability in GitLab that affects versions >=10.7 <13.0.14, >=13.1.0 <13.1.8, and >=13.2.0 <13.2.6, resulting in improper access control for deploy tokens.

The Impact of CVE-2020-13296

The vulnerability has a CVSS base score of 6.5 (Medium severity) with a high availability impact. It could allow attackers to gain unauthorized access to deploy tokens, potentially leading to security breaches.

Technical Details of CVE-2020-13296

This section provides detailed technical information about the CVE.

Vulnerability Description

The vulnerability involves improper access control for deploy tokens in affected GitLab versions, potentially enabling unauthorized access.

Affected Systems and Versions

GitLab versions >=10.7 <13.0.14
GitLab versions >=13.1.0 <13.1.8
GitLab versions >=13.2.0 <13.2.6

Exploitation Mechanism

The vulnerability can be exploited by attackers to bypass access controls and gain unauthorized access to deploy tokens within the affected GitLab versions.

Mitigation and Prevention

To address CVE-2020-13296, follow these mitigation steps:

Immediate Steps to Take

Update GitLab to a patched version that addresses the vulnerability.
Monitor and restrict access to deploy tokens within the GitLab environment.

Long-Term Security Practices

Regularly review and update access control policies within GitLab.
Conduct security assessments and audits to identify and remediate similar vulnerabilities.

Patching and Updates

Apply security patches provided by GitLab promptly to ensure the vulnerability is mitigated and the system is secure.