CVE-2019-12443 : Security Advisory and Response

GitLab Community and Enterprise Edition versions 10.2 through 11.11 were found to have vulnerabilities allowing for Server-Side Request Forgery (SSRF) attacks due to inadequate validation.

Understanding CVE-2019-12443

Several features within the affected versions of GitLab had vulnerabilities that could be exploited for SSRF attacks.

What is CVE-2019-12443?

An issue in GitLab versions 10.2 through 11.11 allowed for Server-Side Request Forgery (SSRF) attacks due to insufficient validation, enabling DNS rebinding attacks.

The Impact of CVE-2019-12443

The vulnerabilities in GitLab could potentially lead to SSRF attacks, compromising the security and integrity of the affected systems.

Technical Details of CVE-2019-12443

GitLab's vulnerability details and affected systems.

Vulnerability Description

Multiple features in GitLab Community and Enterprise Edition versions 10.2 through 11.11 contained SSRF vulnerabilities due to inadequate validation against DNS rebinding attacks.

Affected Systems and Versions

Product: GitLab Community and Enterprise Edition
Versions: 10.2 through 11.11

Exploitation Mechanism

The vulnerabilities allowed attackers to exploit SSRF weaknesses, potentially leading to DNS rebinding attacks.

Mitigation and Prevention

Steps to mitigate and prevent exploitation of CVE-2019-12443.

Immediate Steps to Take

Update GitLab to a patched version that addresses the SSRF vulnerabilities.
Implement network controls to restrict access to potentially vulnerable features.

Long-Term Security Practices

Regularly update and patch software to prevent known vulnerabilities.
Conduct security assessments and audits to identify and address potential weaknesses.

Patching and Updates

Ensure timely installation of security patches and updates provided by GitLab to address the SSRF vulnerabilities.