This module takes advantage of the addition of authorized ssh keys in the gitlab-shell functionality of Gitlab. Versions of gitlab-shell prior to 1.7.4 used the ssh key provided directly in a system call resulting in a command injection vulnerability. As this relies on adding an ssh key to an account, valid credentials are required to exploit this vulnerability.
To display the available options, load the module within the Metasploit console and run the commands 'show options' or 'show advanced':
Time is precious, so I don’t want to do something manually that I can automate. Leveraging the Metasploit Framework when automating any task keeps us from having to re-create the wheel as we can use the existing libraries and focus our efforts where it matters.
– Jim O’Gorman | President, Offensive Security