CVE-2017-0919 : Exploit Details and Defense Strategies

GitLab Community and Enterprise Editions before versions 10.1.6, 10.2.6, and 10.3.4 are susceptible to an authorization bypass vulnerability in the import component, enabling unauthorized operations within a group.

Understanding CVE-2017-0919

This CVE involves a security flaw in GitLab versions prior to 10.1.6, 10.2.6, and 10.3.4 that allows attackers to bypass authorization and execute actions within unauthorized groups.

What is CVE-2017-0919?

Versions preceding 10.1.6, 10.2.6, and 10.3.4 of GitLab Community and Enterprise Editions have a security vulnerability in the import component. This flaw permits attackers to circumvent authorization and conduct operations within unauthorized groups.

The Impact of CVE-2017-0919

The vulnerability enables attackers to perform actions within a group they were not previously authorized for, potentially leading to unauthorized data access or manipulation.

Technical Details of CVE-2017-0919

GitLab versions before 10.1.6, 10.2.6, and 10.3.4 are affected by this vulnerability.

Vulnerability Description

The flaw in the import component allows attackers to bypass authorization and carry out operations within unauthorized groups.

Affected Systems and Versions

GitLab Community Edition before 10.1.6
GitLab Enterprise Edition before 10.1.6, 10.2.6, and 10.3.4

Exploitation Mechanism

Attackers exploit the vulnerability in the import component to bypass authorization and perform actions within groups they are not authorized for.

Mitigation and Prevention

To address CVE-2017-0919, follow these steps:

Immediate Steps to Take

Upgrade GitLab to version 10.1.6, 10.2.6, or 10.3.4 to mitigate the vulnerability.
Monitor group activities for any unauthorized actions.

Long-Term Security Practices

Regularly update GitLab to the latest versions to patch security vulnerabilities.
Implement strict access controls to prevent unauthorized access to groups.

Patching and Updates

Apply patches provided by GitLab promptly to address security issues and prevent exploitation of vulnerabilities.