PlaidCTF misc 100 fuzzer

fuzzer.rb

#!/usr/bin/env ruby

require 'ronin/network/tcp'
require 'ronin/ui/output/helpers'
require 'combinatorics'

include Ronin::Network::TCP,
        Ronin::UI::Output::Helpers

hosts = %w[
  50.17.171.79
  54.224.183.192
  184.73.107.54
  54.234.231.14
  54.224.176.148
]

[(0x40..0xff), 0x00, 0x00, 0x00, 0x00, 0x00, 0x00].comprehension do |bytes|
  opcodes = bytes.map(&:chr).join
  print_info "Trying #{opcodes.dump} ..."

  begin
    tcp_session(hosts.sample,9998) do |socket|
      socket.recv(1024)
      socket.send(opcodes,0)
      socket.close_write

      until (line = socket.recv(1024)).empty?
        print line
      end
    end
  rescue Errno::ECONNREFUSED, Errno::ETIMEDOUT
    retry
  end

  sleep 1
end