GitLab SSH Key Upload Vulnerability Affects GitLab Shell Feature

CVE-2013-4490

Summary

The SSH key upload feature in GitLab Shell prior to version 1.7.3, utilized in GitLab versions 5.0 through 5.4.1 and 6.x prior to 6.2.3, suffers from a vulnerability that allows remote authenticated users to exploit the system. By injecting shell metacharacters into the public key, attackers can execute arbitrary commands, leading to potential unauthorized access and system compromise.

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

Metasploit exploit module for CVE-2013-4490
Created by Rapid7

References