CVE-2019-15738 : Security Advisory and Response

A vulnerability has been found in GitLab Community and Enterprise Edition 12.0 through 12.2.1, where the email function exposed merge request IDs.

Understanding CVE-2019-15738

This CVE involves a security issue in GitLab versions 12.0 through 12.2.1 that could lead to the exposure of merge request IDs through the email function.

What is CVE-2019-15738?

This CVE identifies a vulnerability in GitLab Community and Enterprise Edition versions 12.0 through 12.2.1, allowing the disclosure of merge request IDs in certain scenarios.

The Impact of CVE-2019-15738

The exposure of merge request IDs through the email function could potentially lead to unauthorized access to sensitive information and compromise the confidentiality of data.

Technical Details of CVE-2019-15738

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

Vulnerability Description

The vulnerability in GitLab versions 12.0 through 12.2.1 allows for the unintended disclosure of merge request IDs via the email function.

Affected Systems and Versions

Product: GitLab Community and Enterprise Edition
Versions: 12.0 through 12.2.1

Exploitation Mechanism

The vulnerability can be exploited in specific situations where the email function is used, potentially exposing merge request IDs.

Mitigation and Prevention

It is crucial to take immediate steps to address and prevent the exploitation of this vulnerability.

Immediate Steps to Take

Upgrade GitLab to a patched version that addresses the vulnerability.
Review and restrict access to sensitive information that could be exposed.

Long-Term Security Practices

Regularly update and patch software to mitigate known vulnerabilities.
Implement access controls and monitoring to prevent unauthorized disclosure of sensitive data.

Patching and Updates

Ensure that GitLab is regularly updated to the latest secure version to prevent exploitation of this vulnerability.