CVE-2019-12433 : Security Advisory and Response

GitLab Community and Enterprise Edition versions 11.7 through 11.11 are affected by an Insufficient Input Validation vulnerability that allows the creation of internal projects within private groups, leading to permission issues.

Understanding CVE-2019-12433

This CVE identifies a security flaw in GitLab versions 11.7 through 11.11 related to Insufficient Input Validation.

What is CVE-2019-12433?

This vulnerability in GitLab allows users to create internal projects within private groups, causing various permission problems due to restricted visibility settings.

The Impact of CVE-2019-12433

The vulnerability can result in unauthorized access and manipulation of projects within private groups, compromising the confidentiality and integrity of sensitive data.

Technical Details of CVE-2019-12433

GitLab Community and Enterprise Edition versions 11.7 through 11.11 are susceptible to this security issue.

Vulnerability Description

The flaw arises from insufficient input validation, enabling the creation of internal projects within private groups.

Affected Systems and Versions

GitLab Community and Enterprise Edition versions 11.7 through 11.11

Exploitation Mechanism

Attackers can exploit this vulnerability by leveraging restricted visibility settings to create internal projects within private groups, leading to permission conflicts.

Mitigation and Prevention

It is crucial to take immediate steps to address and prevent the exploitation of CVE-2019-12433.

Immediate Steps to Take

Update GitLab to a patched version that addresses the vulnerability.
Review and adjust visibility settings to prevent unauthorized project creation.

Long-Term Security Practices

Regularly monitor and audit project permissions and visibility settings.
Educate users on secure project creation practices within GitLab.

Patching and Updates

Apply security patches provided by GitLab to mitigate the vulnerability and enhance system security.