CVE-2024-9387 - Open Redirect Vulnerability in GitLab CE/EE Affecting Multiple Versions: Exploit Details, Code Snippet, and References

Introduction:
A vulnerability, CVE-2024-9387, has come to light that affects various versions of GitLab Community Edition (CE) and GitLab Enterprise Edition (EE). This open redirect issue leaves the opportunity for attackers to make unauthorized use of the Releases API endpoint. This post will provide a code snippet, original links to references, and the details of this exploit to improve and spread awareness.

Exploit Details:
CVE-2024-9387 is an open redirect flaw found in GitLab CE/EE, impacting all versions starting from 11.8 until the following patches:

17.6.2 for version 17.6

This vulnerability allows an attacker to exploit an open redirect on the releases API endpoint. If exploited, the vulnerability could let the attacker redirect users to a malicious webpage, potentially leading to further compromise and data theft.

Code Snippet

Here's an example of an HTTP GET request that an attacker could use to exploit the open redirect vulnerability (CVE-2024-9387):

GET /api/v4/projects/1234/releases?redirect_to=http://malicious-website.com HTTP/1.1
Host: vulnerable-gitlab-instance.com
Accept: application/json

vulnerable-gitlab-instance.com represents the vulnerable GitLab server

- http://malicious-website.com is the attacker-controlled URL

This request would redirect the user to the attacker's malicious website when the user accesses the Releases API endpoint.

Original References:
To learn more about the CVE-2024-9387 vulnerability and mitigation steps, you can refer to the following links:
1. GitLab Security Advisory: https://about.gitlab.com/releases/2024/03/05/security-9387-gitlab-ceee/
2. CVE Details: https://www.cvedetails.com/cve/CVE-2024-9387/
3. National Vulnerability Database (NVD): https://nvd.nist.gov/vuln/detail/CVE-2024-9387

Mitigation:
It is highly advised to upgrade your GitLab instance to patched versions to prevent this vulnerability from being exploited. The patched versions are as follows:

17.6.2 for version 17.6

By applying these updates, you can protect your GitLab instance from potential open redirect attacks made possible by CVE-2024-9387.

Conclusion:
Stay informed and protect your GitLab instance by understanding and addressing the risks posed by CVE-2024-9387 – the open redirect vulnerability affecting multiple versions of GitLab CE/EE. Keep yourself updated with the latest news and developments in the field of security and stay safe from threats to your data and infrastructure.

Timeline

Published on: 12/12/2024 12:15:28 UTC