CVE-2020-13310 : What You Need to Know

A vulnerability in GitLab runner versions before 13.1.3, 13.2.3, and 13.3.1 could lead to a denial of service attack by crashing the gitlab-runner process.

Understanding CVE-2020-13310

This CVE involves an improper handling of exceptional conditions in GitLab.

What is CVE-2020-13310?

This vulnerability allows attackers to crash the gitlab-runner process by sending malformed queries, resulting in a denial of service.

The Impact of CVE-2020-13310

CVSS Base Score: 6.5 (Medium)
Attack Vector: Network
Availability Impact: High
Privileges Required: Low

Technical Details of CVE-2020-13310

This section provides more technical insights into the vulnerability.

Vulnerability Description

The vulnerability in GitLab runner versions before 13.1.3, 13.2.3, and 13.3.1 allows for a denial of service attack by crashing the gitlab-runner process.

Affected Systems and Versions

Affected Product: GitLab
Affected Versions: >=1.0, <13.1.3, >=13.2, <13.2.3, >=13.3, <13.3.1

Exploitation Mechanism

Attackers can exploit this vulnerability by sending malformed queries to the gitlab-runner process, causing it to crash.

Mitigation and Prevention

Protect your systems from CVE-2020-13310 with these steps:

Immediate Steps to Take

Update GitLab runner to versions 13.1.3, 13.2.3, or 13.3.1 to mitigate the vulnerability.
Monitor system logs for any unusual activity that could indicate an attack.

Long-Term Security Practices

Regularly update software and apply security patches to prevent vulnerabilities.
Implement network monitoring and intrusion detection systems to detect and respond to attacks.

Patching and Updates

Stay informed about security advisories from GitLab and promptly apply recommended patches and updates.