Funhxx17.zip

Most write-ups note that FTP allows Anonymous login . Inside the FTP directory, you will find FUNHXX17.zip among other files.

Because the unzipping process often runs with high privileges (or as a user with write access to the webroot), you can create a malicious zip file containing a symbolic link . FUNHXX17.zip

The core "trick" of this machine involves how the system handles this specific zip file. Most write-ups note that FTP allows Anonymous login