🟨Rlogin

This service was mostly used in the old days for remote administration but now because of security issues this service has been replaced by the slogin and the ssh.

rlogin runs on TCP port 513. its highly unlikely to see this service out in the open these days, but if you do, its your lucky day because if a system with an open rlogin service is exposed to the internet then there are probably more dangerous and vulnerable services running on that network.

Login

rlogin -l root 192.168.99.131  --> no password required :|

Bruteforce

metasploit:
auxiliary/scanner/rservices/rlogin_login 

nmap:
nmap -sV -A -p 131 [ip]
rlogin-brute.nse