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Example Nmap output

File telnet-encryption

Script types: portrule
Categories: safe, discovery
Download: http://nmap.org/svn/scripts/telnet-encryption.nse

User Summary

Determines whether the encryption option is supported on a remote telnet server. Some systems (including FreeBSD and the krb5 telnetd available in many Linux distributions) implement this option incorrectly, leading to a remote root vulnerability. This script currently only tests whether encryption is supported, not for that particular vulnerability.

References:

Example Usage

nmap -p 23 <ip> --script telnet-encryption

Script Output

PORT   STATE SERVICE REASON
23/tcp open  telnet  syn-ack
| telnet-encryption:
|_  Telnet server supports encryption

Requires


Author: Patrik Karlsson, David Fifield, Fyodor

License: Same as Nmap--See http://nmap.org/book/man-legal.html

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