SB2018120511 - SSRF in GitLab Enterprise Edition

Description

This security bulletin contains information about 1 security vulnerability.

1) Server-Side Request Forgery (SSRF) (CVE-ID: CVE-2018-18843)

The disclosed vulnerability allows a remote attacker to perform SSRF attacks.

The vulnerability exists due to insufficient validation of user-supplied input. A remote attacker can send a specially crafted HTTP request to the affected system and trick the application to initiate requests to arbitrary systems.

Successful exploitation of this vulnerability may allow a remote attacker gain access to sensitive data, located in the local network, view contest of arbitrary files on the server or send malicious requests to other servers from the vulnerable system.

Remediation

Install update from vendor's website.

References

• https://about.gitlab.com/2018/11/01/critical-security-release-gitlab-11-dot-4-dot-4-released/
• https://gitlab.com/gitlab-org/gitlab-ce/issues/53158