CVE-2019-12442 : Vulnerability Insights and Analysis

A vulnerability was found in GitLab Enterprise Edition versions 11.7 through 11.11, leading to a persistent XSS vulnerability on child epics.

Understanding CVE-2019-12442

This CVE involves a security issue in GitLab Enterprise Edition versions 11.7 through 11.11, affecting the epic details page due to input validation and output encoding problems.

What is CVE-2019-12442?

This CVE identifies a persistent XSS vulnerability in child epics within GitLab Enterprise Edition versions 11.7 through 11.11. The flaw arises from inadequate input validation and output encoding on the epic details page.

The Impact of CVE-2019-12442

The vulnerability could allow attackers to execute malicious scripts in the context of a user's session, potentially leading to unauthorized actions or data theft.

Technical Details of CVE-2019-12442

This section provides more in-depth technical insights into the CVE.

Vulnerability Description

The issue in GitLab Enterprise Edition 11.7 through 11.11 stems from a lack of proper input validation and output encoding on the epic details page, enabling persistent XSS attacks on child epics.

Affected Systems and Versions

Product: GitLab Enterprise Edition
Versions: 11.7 through 11.11

Exploitation Mechanism

Attackers can exploit this vulnerability by injecting malicious scripts into child epics, taking advantage of the lack of input validation and output encoding.

Mitigation and Prevention

Protecting systems from CVE-2019-12442 requires immediate actions and long-term security practices.

Immediate Steps to Take

Update GitLab Enterprise Edition to a patched version that addresses the XSS vulnerability.
Educate users about the risks of executing scripts from untrusted sources.

Long-Term Security Practices

Implement strict input validation and output encoding practices in web applications.
Regularly monitor and audit for XSS vulnerabilities in applications.

Patching and Updates

Ensure timely installation of security patches and updates provided by GitLab to mitigate the risk of XSS attacks.