Funhxx17.zip Official

If the zip contained a , you simply navigate to the location where the script was extracted to trigger a connection back to your listener ( nc -lvnp 4444 ). 4. Privilege Escalation

The core "trick" of this machine involves how the system handles this specific zip file. FUNHXX17.zip

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. If the zip contained a , you simply

After gaining a shell as a low-privileged user (often www-data or tom ): Check for binaries that can be run as root. Create a symlink to a sensitive file (like /root/root

The machine runs a background cron job or script that automatically processes/unzips files placed in certain directories (like /var/www/html/uploads or the FTP upload folder).

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