CVE-2020-10978 : Security Advisory and Response

GitLab EE/CE 8.11 to 12.9 is leaking information on Issues opened in a public project and then moved to a private project through Web-UI and GraphQL API.

Understanding CVE-2020-10978

This CVE involves a data leakage vulnerability in GitLab versions 8.11 to 12.9, where information on Issues can be exposed when moved from a public to a private project.

What is CVE-2020-10978?

This CVE identifies a security issue in GitLab EE/CE versions 8.11 to 12.9 that allows sensitive information leakage during the transition of Issues between project visibility settings.

The Impact of CVE-2020-10978

The vulnerability can lead to unauthorized access to confidential data, compromising the privacy and security of organizations using affected GitLab versions.

Technical Details of CVE-2020-10978

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

Vulnerability Description

The vulnerability in GitLab EE/CE versions 8.11 to 12.9 results in the exposure of information related to Issues that are moved from public to private projects through Web-UI and GraphQL API.

Affected Systems and Versions

GitLab EE/CE versions 8.11 to 12.9

Exploitation Mechanism

The vulnerability can be exploited by moving Issues from a public project to a private project using the Web-UI or GraphQL API, leading to the exposure of sensitive data.

Mitigation and Prevention

Protecting systems from CVE-2020-10978 requires immediate actions and long-term security measures.

Immediate Steps to Take

Upgrade GitLab to a patched version that addresses the data leakage vulnerability.
Review and restrict access permissions to sensitive information within GitLab.

Long-Term Security Practices

Regularly monitor and audit data access and sharing within GitLab.
Educate users on proper handling of confidential information to prevent inadvertent data exposure.

Patching and Updates

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