Level goal

The password for the next level is stored somewhere on the server and has all of the following properties:
-owned by user bandit7
-owned by group bandit6
-33 bytes in size

Login

ssh bandit6@bandit.labs.overthewire.org -p 2220
HWasnPhtq9AVKe0dmk45nxy20cvUa6EG

Doc

find (1)             - search for files in a directory hierarchy

Solution

Firstly, I searched the home directory since its smaller than the root in case the file was hidden there. After seeing that it was not, I used find in root / to see that there exists a file with my defined conditions at /var/lib/dpkg/info/bandit7.password. 

bandit6@bandit:~$ find /home -user bandit7 -group bandit6 -size 33c
find: ‘/home/drifter8/chroot’: Permission denied
find: ‘/home/bandit5/inhere’: Permission denied
find: ‘/home/bandit31-git’: Permission denied
find: ‘/home/bandit29-git’: Permission denied
find: ‘/home/ubuntu’: Permission denied
find: ‘/home/bandit30-git’: Permission denied
find: ‘/home/bandit28-git’: Permission denied
find: ‘/home/drifter6/data’: Permission denied
find: ‘/home/bandit27-git’: Permission denied
bandit6@bandit:~$ find / -user bandit7 -group bandit6 -size 33c
find: ‘/sys/kernel/tracing’: Permission denied
find: ‘/sys/kernel/debug’: Permission denied
.
.
.
/var/lib/dpkg/info/bandit7.password
.
.
.
bandit6@bandit:~$ cat /var/lib/dpkg/info/bandit7.password
morbNTDkSW6jIlUc0ymOdMaLnOlFVAaj