Tftpbrute

Vulnerable Application

This module attempts to find files on a TFTP server. The default wordlist is tftp.txt. This module will NOT attempt to download the entire file, it simply pulls the first 3 bytes to verify the file exists.

Install

On Kali 2019.4 (rolling) one of the TFTP server is the package tftpd-hpa. This can be installed as follows:

apt-get install tftpd-hpa
systemctl start tftpd-hpa

This creates the root tftp directory in /srv/tftp.

Verification Steps

1. Install the application
2. Start msfconsole
3. Do: use auxiliary/scanner/tftp/tftpbrute
4. Do: run

Options

DICTIONARY

The newline separated list of files to find. Default depends on install location, however it will be within metasploit-framework/data/wordlists/tftp.txt.

Scenarios

tftpd-hpa on Kali linux

First, create a file to find:

echo "hello world" > /srv/tftp/test.txt

Now we can find the file:

msf > use auxiliary/scanner/tftp/tftpbrute 
msf auxiliary(scanner/tftp/tftpbrute) > set rhosts 1.1.1.1
rhosts => 1.1.1.1
msf auxiliary(scanner/tftp/tftpbrute) > set verbose true
verbose => true
msf auxiliary(scanner/tftp/tftpbrute) > run

[+] Found test.txt on 1.1.1.1
[*] Scanned 1 of 1 hosts (100% complete)
[*] Auxiliary module execution completed
msf auxiliary(scanner/tftp/tftpbrute) >