This machine focuses on insecure file handling and exploitation of automated scripts. The FUNHXX17.zip file is the central piece of the initial exploitation phase.

Scanning the web server (Port 80) usually reveals a directory like /backups/ where this same zip file might be hosted or referenced. 2. Exploiting FUNHXX17.zip

If you used a symlink, you can now read the linked file through the web server.

Look for writable scripts in /etc/crontab that are executed by root.

Create a symlink to a sensitive file (like /root/root.txt or /etc/shadow ) or a directory. Compress the symlink using the --symlinks flag in zip . Upload it back to the server.

FUNHXX17.zip is a target file associated with the (sometimes referred to as Funbox 11 or UnderTheGround) Capture The Flag (CTF) machine, available on platforms like Vulnhub and OffSec's Proving Grounds. Write-up: Funbox UnderTheGround (FUNHXX17.zip)

After gaining a shell as a low-privileged user (often www-data or tom ): Check for binaries that can be run as root.