Telnet 23 - 2323

Telnet enumeration

#Banner Grabbing

With netcat

nc -vn 10.10.10.10 23

With Telnet

telnet 10.10.10.10 23

#NMAP

nmap -n -sV -Pn --script "telnet and safe" -p 23 10.10.10.10

#Metasploit

msfconsole -q -x 'use auxiliary/scanner/telnet/telnet_version; set RHOSTS 10.10.10.10; set RPORT 23; run; exit' && msfconsole -q -x 'use auxiliary/scanner/telnet/brocade_enable_login; set RHOSTS 10.10.10.10; set RPORT 23; run; exit' && msfconsole -q -x 'use auxiliary/scanner/telnet/telnet_encrypt_overflow; set RHOSTS 10.10.10.10; set RPORT 23; run; exit' && msfconsole -q -x 'use auxiliary/scanner/telnet/telnet_ruggedcom; set RHOSTS 10.10.10.10; set RPORT 23; run; exit'

Port 2323 is an alternative port used in IOT devices configured to use telnet

#Hydra bruteforce users via telnet

sudo hydra -L users.txt -P rockyou.txt 10.10.10.10 telnet -V