Level 13

Login to the server with bandit13 and the password.

The password for the next level is stored in /etc/bandit_pass/bandit14 and can only be read by user bandit14. For this level, you don’t get the next password, but you get a private SSH key that can be used to log into the next level.

bandit13@bandit:~$ ls
sshkey.private
bandit13@bandit:~$ exit

I use scp to copy the key to my local machine.

scp -P 2220 bandit13@bandit.labs.overthewire.org:sshkey.private .
This is a OverTheWire game server. More information on http://www.overthewire.org/wargames

bandit13@bandit.labs.overthewire.org's password: 
sshkey.private                                                     100% 1679    76.3KB/s   00:00

I can then use this to log in as bandit14, presumably. But only after I change the permissions, since ssh complains otherwise.

$ chmod 600 sshkey.private
$ ssh -p 2220 bandit14@bandit.labs.overthewire.org -i sshkey.private
bandit14@bandit:~$ cat /etc/bandit_pass/bandit14
4wcYUJFw0k0XLShlDzztnTBHiqxU3b3e