Level 10 – bandit – overthewire

Level Instructions:

“The password for the next level is stored in the file data.txt, which contains base64 encoded data.”

bandit10@bandit:~$ ls -la
total 24
drwxr-xr-x  2 root     root     4096 Dec 28  2017 .
drwxr-xr-x 42 root     root     4096 Jul 22 18:42 ..
-rw-r--r--  1 root     root      220 Sep  1  2015 .bash_logout
-rw-r--r--  1 root     root     3771 Sep  1  2015 .bashrc
-rw-r--r--  1 root     root      655 Jun 24  2016 .profile
-rw-r-----  1 bandit11 bandit10   69 Dec 28  2017 data.txt
bandit10@bandit:~$ cat data.txt
VGhlIHBhc3N3b3JkIGlzIElGdWt3S0dzRlc4TU9xM0lSRnFyeEUxaHhUTkViVVBSCg==
bandit10@bandit:~$ cat data.txt | base64 -d
The password is IFukwKGsFW8MOq3IRFqrxE1hxTNEbUPR

The password in level 10 has been encoded in base64, as detailed in the instructions.  Printing the contents of data.txt reveals a seemingly random string of characters appended with “==”.  By piping the contents of the file into base64 with the switch -d we are able to decrypt the password for level 11.