CVE-2020-13312 : Vulnerability Insights and Analysis
Learn about CVE-2020-13312, a vulnerability in GitLab versions before 13.1.10, 13.2.8, and 13.3.4 allowing brute-force attacks on the OAuth endpoint. Find mitigation steps and security practices.
A vulnerability in GitLab versions before 13.1.10, 13.2.8, and 13.3.4 allowed brute-force attacks on the OAuth endpoint through a specific parameter.
Understanding CVE-2020-13312
This CVE involves an improper restriction of excessive authentication attempts in GitLab, impacting versions prior to 13.1.10, 13.2.8, and 13.3.4.
What is CVE-2020-13312?
The vulnerability in GitLab versions before 13.1.10, 13.2.8, and 13.3.4 allowed attackers to perform brute-force attacks on the OAuth endpoint using a specific parameter.
The Impact of CVE-2020-13312
- CVSS Base Score: 6.5 (Medium Severity)
- Attack Vector: Network
- Attack Complexity: Low
- Confidentiality Impact: Low
- Integrity Impact: Low
- Privileges Required: None
- User Interaction: None
- Scope: Unchanged
- Availability Impact: None
Technical Details of CVE-2020-13312
Vulnerability Description
The vulnerability allowed attackers to conduct brute-force attacks on the GitLab OAuth endpoint through a specific parameter.
Affected Systems and Versions
- Affected Product: GitLab
- Affected Versions:
=7.7, <13.1.10
=13.2, <13.2.8
=13.3, <13.3.4
Exploitation Mechanism
Attackers could exploit this vulnerability by sending a large number of authentication attempts through the GitLab OAuth endpoint.
Mitigation and Prevention
Immediate Steps to Take
- Update GitLab to versions 13.1.10, 13.2.8, or 13.3.4 or newer to mitigate the vulnerability.
- Monitor authentication attempts for unusual patterns to detect potential brute-force attacks.
Long-Term Security Practices
- Implement multi-factor authentication to enhance security.
- Regularly review and update security configurations to prevent similar vulnerabilities.
Patching and Updates
- Apply security patches provided by GitLab promptly to address known vulnerabilities.