handbook/tools/2.Scanning-and-Enumeration/3.Ports/Ports-Links/23-Telnet/Telnet.md

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## What is Telnet
- **What is Telnet?**
Telnet is an application protocol which allows you, with the use of a telnet client, to connect to and execute commands on a remote machine that's hosting a telnet server.
The telnet client will establish a connection with the server. The client will then become a virtual terminal- allowing you to interact with the remote host.
- **Replacement**
Telnet sends all messages in clear text and has no specific security mechanisms. Thus, in many applications and services, Telnet has been replaced by SSH in most implementations.
 
- **How does Telnet work?**
The user connects to the server by using the Telnet protocol, which means entering **"telnet"** into a command prompt. The user then executes commands on the server by using specific Telnet commands in the Telnet prompt. You can connect to a telnet server with the following syntax: **"telnet [ip] [port]"**
## Find Telnet Port
Nmap
```
nmap -sV -SC IP -p23
```
- Possible to find Telnet on an other port
## Connection
Telnet
```Terminal
telnet [ip] [port]
```
- IP ---> Target IP
- PORT ---> Port we want to interact with (example -> 110)
Exploit CVE
- [https://www.cvedetails.com/](https://www.cvedetails.com/)
- [https://cve.mitre.org/](https://cve.mitre.org/)[](https://cve.mitre.org/)