Module: Msf::Handler::ReverseTcpSsl

Includes:
Msf::Handler::Reverse::SSL, ReverseTcp
Defined in:
lib/msf/core/handler/reverse_tcp_ssl.rb

Overview

This module implements the reverse TCP handler. This means that it listens on a port waiting for a connection until either one is established or it is told to abort.

This handler depends on having a local host and port to listen on.

Constant Summary

Constants included from Msf::Handler

Claimed, Unused

Instance Attribute Summary

Attributes included from ReverseTcp

#conn_threads, #handler_thread, #listener_sock, #listener_thread

Attributes included from Msf::Handler

#exploit_config, #parent_payload, #pending_connections, #session_waiter_event, #sessions

Class Method Summary collapse

Instance Method Summary collapse

Methods included from Msf::Handler::Reverse::SSL

#initialize

Methods included from ReverseTcp

#cleanup_handler, #comm_string, #human_name, #initialize, #listener_uri, #payload_uri, #start_handler, #stop_handler, #wrap_aes_socket

Methods included from Msf::Handler::Reverse::Comm

#initialize, #select_comm, #via_string

Methods included from Reverse

#bind_addresses, #bind_port, #initialize, #is_loopback_address?

Methods included from Msf::Handler

#add_handler, #cleanup_handler, #create_session, #handle_connection, #handler, #handler_name, #initialize, #interrupt_wait_for_session, #register_session, #start_handler, #stop_handler, #wait_for_session, #wfs_delay

Class Method Details

.general_handler_type ⇒ Object

Returns the connection-described general handler type, in this case ‘reverse’.



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# File 'lib/msf/core/handler/reverse_tcp_ssl.rb', line 35

def self.general_handler_type
  "reverse"
end

.handler_type ⇒ Object

Returns the string representation of the handler type, in this case ‘reverse_tcp_ssl’.



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# File 'lib/msf/core/handler/reverse_tcp_ssl.rb', line 27

def self.handler_type
  return "reverse_tcp_ssl"
end

Instance Method Details

#setup_handler ⇒ Object

Starts the listener but does not actually attempt to accept a connection. Throws socket exceptions if it fails to start the listener.



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# File 'lib/msf/core/handler/reverse_tcp_ssl.rb', line 44

def setup_handler
  if !datastore['Proxies'].blank? && !datastore['ReverseAllowProxy']
    raise RuntimeError, "TCP connect-back payloads cannot be used with Proxies. Use 'set ReverseAllowProxy true' to override this behaviour."
  end

  ex = false

  comm = select_comm
  local_port = bind_port
  bind_addresses.each { |ip|
    begin

      self.listener_sock = Rex::Socket::SslTcpServer.create(
        'LocalHost'  => ip,
        'LocalPort'  => local_port,
        'Comm'       => comm,
        'SSLCert'    => datastore['HandlerSSLCert'],
        'SSLVersion' => datastore['SSLVersion'],
        'Context'    =>
          {
            'Msf'        => framework,
            'MsfPayload' => self,
            'MsfExploit' => assoc_exploit
          })

      ex = false

      via = via_string(self.listener_sock.client) if self.listener_sock.respond_to?(:client)
      print_status("Started reverse SSL handler on #{ip}:#{local_port} #{via}")
      break
    rescue
      ex = $!
      print_error("Handler failed to bind to #{ip}:#{local_port}")
    end
  }
  raise ex if (ex)
end