CVE-2017-0917 : Vulnerability Insights and Analysis

Gitlab Community Edition version 10.2.4 is vulnerable to lack of input validation in the CI job component, leading to persistent cross-site scripting.

Understanding CVE-2017-0917

The presence of inadequate input validation in GitLab Community Edition version 10.2.4 exposes it to persistent cross-site scripting.

What is CVE-2017-0917?

This CVE identifies a vulnerability in GitLab Community Edition version 10.2.4 that allows for persistent cross-site scripting due to insufficient input validation in the CI job component.

The Impact of CVE-2017-0917

The vulnerability can be exploited by attackers to inject malicious scripts into web pages viewed by other users, potentially leading to account compromise, data theft, or unauthorized actions.

Technical Details of CVE-2017-0917

GitLab Community Edition version 10.2.4 is affected by a persistent cross-site scripting vulnerability.

Vulnerability Description

The lack of input validation in the CI job component of GitLab Community Edition version 10.2.4 allows attackers to execute persistent cross-site scripting attacks.

Affected Systems and Versions

Product: GitLab Community and Enterprise Editions
Versions Affected: 10.2.0 - 10.2.5 (Fixed in 10.2.6)
Versions Affected: 10.3.0 - 10.3.3 (Fixed in 10.3.4)

Exploitation Mechanism

Attackers can exploit this vulnerability by injecting malicious scripts into the CI job component, which will then be executed when other users view the affected web pages.

Mitigation and Prevention

Immediate Steps to Take:

Update GitLab to version 10.2.6 or 10.3.4, where the vulnerability is fixed.
Monitor web pages for any signs of unauthorized scripts or activities. Long-Term Security Practices:
Implement strict input validation mechanisms in all web components.
Educate developers on secure coding practices to prevent similar vulnerabilities.
Regularly scan and test web applications for security flaws.
Stay informed about security updates and patches from GitLab.
Consider implementing a web application firewall for added protection.
Conduct security audits periodically to identify and address any new vulnerabilities.
Train users to recognize and report suspicious activities on web pages.
Collaborate with security researchers and organizations to stay updated on emerging threats.

Patching and Updates

Ensure that GitLab Community Edition is regularly updated to the latest versions to mitigate security risks and apply patches promptly.