Writing a simple FileZilla FTP fuzzer

We analyzed the working of fuzzer modules in our previous recipe. Let us take it a step ahead by building our own small FTP fuzzer that can be used against the FileZilla FTP server.

How to do it...

The basic template to build a fuzzer will be similar to the one we discussed for the development of an auxiliary module. So our basic template should look as follows:

require 'msf/core'

class Metasploit3 < Msf::Auxiliary

        include Msf::Auxiliary::Scanner
        def initialize
                super(
                        'Name'           => 'FileZilla Fuzzer',
                        'Version'        => '$Revision: 1 $',
                        'Description'    => 'Filezilla FTP fuzzer',
                        'Author'         => 'Abhinav_singh',
                        'License'        => MSF_LICENSE
                )
                register_options( [
                Opt::RPORT(14147),
           OptInt.new('STEPSIZE', [ false...