CVE-2020-13288 : Security Advisory and Response

In GitLab before versions 13.0.12, 13.1.6, and 13.2.3, a stored XSS vulnerability exists in the CI/CD Jobs page.

Understanding CVE-2020-13288

This CVE involves a stored XSS vulnerability in GitLab affecting specific versions.

What is CVE-2020-13288?

The vulnerability allows attackers to execute malicious scripts in the context of a user's session on the CI/CD Jobs page.

The Impact of CVE-2020-13288

CVSS Base Score: 5.5 (Medium Severity)
Attack Vector: Network
Confidentiality Impact: High
Integrity Impact: Low
Privileges Required: High
User Interaction: None

Technical Details of CVE-2020-13288

This section provides more technical insights into the vulnerability.

Vulnerability Description

The issue stems from improper neutralization of input during web page generation, leading to cross-site scripting (XSS) in GitLab.

Affected Systems and Versions

Affected Product: GitLab
Vulnerable Versions:
=13.0, <13.0.12

=13.1, <13.1.6

=13.2, <13.2.3

Exploitation Mechanism

Attack Complexity: Low
Scope: Unchanged
No user interaction required for exploitation

Mitigation and Prevention

Protect your systems and data from this vulnerability.

Immediate Steps to Take

Update GitLab to versions 13.0.12, 13.1.6, or 13.2.3 to mitigate the risk.
Monitor for any suspicious activities on the CI/CD Jobs page.

Long-Term Security Practices

Regularly scan and test for XSS vulnerabilities in web applications.
Educate users on identifying and reporting suspicious activities.

Patching and Updates

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