circusmonkey404's Security Site

PicoCTF2018 - Miscellaneous - ssh-keyz Objective: As nice as it is to use our webshell, sometimes its helpful to connect directly to our machine. To do so, please add your own public key to ~/.ssh/authorized_keys, using the webshell. The flag is in the ssh banner which will be displayed when you login remotely with ssh to  with your username. Solution: ok so I used puttykeygen to generate a pub and private key connected to webshell under my home directory I created a folder name ./ssh/authroized_keys mkdir ./ssh/authorized_keys I created a new file using vim vim pub.key inserted my public key in the file and saved it I then copied the pub key to the directory I created earlier ./ssh/authorized_keys using putty I connected up to picoctf2018 using ssh login as: ************ Pre-authentication banner message from server: | picoCTF{who_n33ds_p4ssw0rds_38dj21} End of banner message from server Keyboard-interactive authentication prompts from server: | Enter your p