CVE-2018-19571 Explained : Impact and Mitigation
Learn about CVE-2018-19571, an SSRF vulnerability in GitLab CE/EE versions 8.18 up to 11.x before 11.3.11, 11.4 before 11.4.8, and 11.5 before 11.5.1. Discover impact, affected systems, exploitation, and mitigation steps.
An SSRF vulnerability in webhooks has been identified in GitLab CE/EE versions 8.18 up to 11.x before 11.3.11, 11.4 before 11.4.8, and 11.5 before 11.5.1.
Understanding CVE-2018-19571
This CVE involves a Server-Side Request Forgery (SSRF) vulnerability in GitLab CE/EE affecting specific versions.
What is CVE-2018-19571?
CVE-2018-19571 is an SSRF vulnerability found in GitLab CE/EE versions 8.18 up to 11.x before 11.3.11, 11.4 before 11.4.8, and 11.5 before 11.5.1. This vulnerability allows attackers to send crafted requests from the server, potentially accessing internal resources or performing unauthorized actions.
The Impact of CVE-2018-19571
The vulnerability could lead to unauthorized access to internal systems, data exfiltration, and potential server-side attacks.
Technical Details of CVE-2018-19571
Vulnerability Description
The SSRF vulnerability in GitLab CE/EE versions 8.18 up to 11.x before 11.3.11, 11.4 before 11.4.8, and 11.5 before 11.5.1 allows attackers to manipulate server requests, potentially accessing internal resources.
Affected Systems and Versions
- GitLab CE/EE versions 8.18 up to 11.x before 11.3.11
- GitLab CE/EE versions 11.4 before 11.4.8
- GitLab CE/EE versions 11.5 before 11.5.1
Exploitation Mechanism
Attackers can exploit this vulnerability by sending specially crafted requests to the server, tricking it into accessing unauthorized resources or performing unintended actions.
Mitigation and Prevention
Immediate Steps to Take
- Update GitLab CE/EE to versions 11.3.11, 11.4.8, or 11.5.1, which contain patches for the SSRF vulnerability.
- Monitor and restrict outgoing requests from the server to prevent SSRF attacks.
Long-Term Security Practices
- Implement strict input validation to prevent malicious input from triggering SSRF vulnerabilities.
- Educate developers and administrators about SSRF risks and best practices for secure coding.
Patching and Updates
Ensure timely installation of security patches and updates provided by GitLab to address known vulnerabilities.