Tux.smashthestack.org

From ChekMate Security Group

Welcome to the tux.smashthestack.org wargame. This is a level based system exploitation wargame with a huge emphasis on programming. It takes you through the most common exploitable bugs, at the end of which you should feel comfortable with all sorts of different types of system exploitation techniques.

To gain entry level access you must write a client to connect to port 9999 on tux.smashthestack.org and recieve 4 little endian integers, XOR these values together and send them back to the server and wait for the entry level deamon to send you the level0 password to begin. Then with the password login to tux via tux.smashthestack.org port 1111 using the level0 login. All level descriptions are containted in the home directory for each level as the file README which may or may not contain hints, tips and source code. Levels for each level can be found in /srv and passwords for each level are in /pass.

The important details are:

IP Address:          tux.smashthestack.org
SSH Port:            1111
Entry Level Port:    9999

If you need any help with this wargame check out our irc server (irc.smashthestack.org - channels #social / #tux).

Enjoy!