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.

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

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 After gaining a shell as a low-privileged user

Look for writable scripts in /etc/crontab that are executed by root. The password is often found to be "p@ssword"

Some versions of this challenge require you to crack the password of FUNHXX17.zip using fcrackzip or john with the rockyou.txt wordlist. The password is often found to be "p@ssword" or similar simple variations. 3. Initial Access Once unzipped by the system:

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)

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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.

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

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

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