CVE-2017-0916 Explained : Impact and Mitigation

Gitlab Community Edition version 10.3 is vulnerable to a lack of input validation in the system_hook_push queue through the web hook component, resulting in remote code execution.

Understanding CVE-2017-0916

The security vulnerability in GitLab Community Edition version 10.3 allows for input validation bypass in the system_hook_push queue, potentially leading to remote code execution.

What is CVE-2017-0916?

The CVE-2017-0916 vulnerability in GitLab Community Edition version 10.3 enables attackers to bypass input validation in the system_hook_push queue via the web hook component, facilitating the execution of remote code.

The Impact of CVE-2017-0916

This vulnerability poses a significant risk as it allows malicious actors to execute remote code on affected systems, potentially leading to unauthorized access, data breaches, and system compromise.

Technical Details of CVE-2017-0916

GitLab Community Edition version 10.3 is susceptible to a security flaw that permits input validation bypass in the system_hook_push queue through the web hook component.

Vulnerability Description

The vulnerability arises from a lack of proper input validation in the system_hook_push queue, which can be exploited by attackers to execute remote code on the affected system.

Affected Systems and Versions

Product: GitLab Community and Enterprise Editions
Vendor: GitLab
Vulnerable Versions: 10.1.0 - 10.3.3
Fixed Versions: 10.1.6, 10.2.6, 10.3.4

Exploitation Mechanism

Attackers can exploit this vulnerability by manipulating input data in the system_hook_push queue through the web hook component, allowing them to execute malicious code remotely.

Mitigation and Prevention

To address CVE-2017-0916 and enhance system security, follow these mitigation strategies:

Immediate Steps to Take

Update GitLab to the fixed versions: 10.1.6, 10.2.6, or 10.3.4
Monitor system logs for any suspicious activities related to input validation

Long-Term Security Practices

Implement strict input validation mechanisms in web applications
Conduct regular security audits and penetration testing to identify vulnerabilities

Patching and Updates

Regularly apply security patches and updates provided by GitLab to address known vulnerabilities