Prompt #

The password for the next level can be retrieved by submitting the password of the current level to port 30001 on localhost using SSL encryption.

Solution #

$ ssh bandit15@bandit.labs.overthewire.org -p 2220
bandit15@bandit.labs.overthewire.org password: BfMYroe26WYalil77FoDi9qh59eK5xNr
bandit15@bandit:~$ echo "BfMYroe26WYalil77FoDi9qh59eK5xNr" | openssl s_client -connect localhost:30001 -quiet -verify_quiet
Correct!
cluFn7wTiGryunymYOu4RcffSxQluehd

References #

• jww, & (Farber, A.)[https://stackoverflow.com/users/165071/alexander-farber] (2014, April 28). How to send a string to server using s_client. Stack Overflow. https://stackoverflow.com/a/23352363/7148921