Ping Command Injection Challenge

The form below lets you send pings to a remote host. Unfortunately, it has a vulnerability.

To use the form normally, enter a target, such as
To see the vulnerability, enter; ls
Target IP:    

Challenge: Add Your Name to the Winners Page

Put your name in this file:

After one minute, your name will appear on the WINNERS page here:


To write to a file named foo, execute:
echo "HELLO" > foo

Last revised 4-5-18