Solves (at time of writing): 433
Description: We have hired you to help investigate this private key. Please use it to connect to the server.
We are given a private key and a ssh server to connect to.
If we try connecting with
ssh -i id_rsa firstname.lastname@example.org -p 50004, it doesnt work.
load pubkey "id_rsa": invalid format Load key "id_rsa": invalid format email@example.com's password:
So the Key doesnt work.
I opened it in Vim to take a closer look, maybe there are some non-ascii bytes in there or something.
I didn't find anything, but to my surprise after re-saving the file in vim (without edits) the key worked?
After seeing the flag it was obvious to me.
SSH Keys need a newline at the end.
And Vim is nice and puts one after you save the file automatically.
~sw1tchbl4d3, 03/08/2020 (dd/mm/yyyy)