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Gitlab-shell Code Execution

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Gitlab-shell Code Execution

Disclosed
11/04/2013
Created
05/30/2018

Description

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.

Author(s)

  • Brandon Knight

Platform

Linux

Development

Module Options

To display the available options, load the module within the Metasploit console and run the commands 'show options' or 'show advanced':

msf > use exploit/multi/http/gitlab_shell_exec
msf exploit(gitlab_shell_exec) > show targets
    ...targets...
msf exploit(gitlab_shell_exec) > set TARGET < target-id >
msf exploit(gitlab_shell_exec) > show options
    ...show and set options...
msf exploit(gitlab_shell_exec) > exploit

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

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