Can you abuse the banner? Additional details will be available after launching your challenge instance.
- As the info says, check the banner on port
49534(nc tethys.picoctf.net 49534), get the password. Then connect to the real server (nc tethys.picoctf.net 50584) and give the password (My_Passw@rd_@1234) <++>./solve.sh
Flag: <++>