Level 19 ->20

bandit19@bandit:~$ ls -la

total 28
drwxr-xr-x  2 root     root     4096 May  7 20:14 .
drwxr-xr-x 41 root     root     4096 May  7 20:14 ..
-rwsr-x---  1 bandit20 bandit19 7296 May  7 20:14 bandit20-do
-rw-r--r--  1 root     root      220 May 15  2017 .bash_logout
-rw-r--r--  1 root     root     3526 May 15  2017 .bashrc
-rw-r--r--  1 root     root      675 May 15  2017 .profile
bandit19@bandit:~$

bandit19@bandit:~$ ./bandit20-do

Run a command as another user.
  Example: ./bandit20-do id

bandit19@bandit:~$ ./bandit20-do cat /etc/bandit_pass/bandit20

GbKkXXXXXXXXXXXXXXXXXXXXXXXXXXXX

Password = GbKkXXXXXXXXXXXXXXXXXXXXXXXXXXXX

bandit