Exemplo n.º 1
0
    def __init__(self):
        default_parameters = [
            60.0, generic_sniffer.DEFAULT_INTERFACE,
            generic_sniffer.DEFAULT_SAVE
        ]
        inputs = [
            InputFormat("Timeout", "timeout", self.timeout, float),
            InputFormat("Interface",
                        "interface",
                        str(self.interface),
                        str,
                        mandatory=True),
            InputFormat("Save Captured Packets", "save_output",
                        str(self.save_output), bool)
        ]
        Attack.__init__(
            self, "MQTT Sniff Attack", inputs, default_parameters,
            "    It listens to the network traffic and\n"
            "    captures MQTT packages.")
        logging.basicConfig(
            level=logging.DEBUG,
            format="%(asctime)s:%(levelname)s:%(name)s:%(message)s")

        # Signal handler to exit from function
        signal.signal(signal.SIGINT, self.signal_handler)
Exemplo n.º 2
0
    def __init__(self):
        default_parameters = ["", 10, "any"]
        inputs = [
            InputFormat("Selected packet index",
                        "selected_index",
                        self.selected_index,
                        int,
                        mandatory=True),
            InputFormat("Timeout", "timeout", self.timeout, float),
            InputFormat("Interface",
                        "interface",
                        str(self.interface),
                        str,
                        mandatory=True)
        ]

        Attack.__init__(
            self, "CoAP Replay Attack", inputs, default_parameters,
            "    It listens to the network traffic and\n"
            "    sends captured packets without changing anything.")

        logging.basicConfig(
            level=logging.DEBUG,
            format="%(asctime)s:%(levelname)s:%(name)s:%(message)s")

        # Signal handler to exit from function
        signal.signal(signal.SIGINT, self.signal_handler)
Exemplo n.º 3
0
    def __init__(self):
        default_parameters = ["", 10.0, "any"]
        inputs = [
            InputFormat("Selected packet index",
                        "selected_index",
                        self.selected_index,
                        int,
                        mandatory=True),
            InputFormat("Timeout", "timeout", self.timeout, float),
            InputFormat("Interface",
                        "interface",
                        str(self.interface),
                        str,
                        mandatory=True)
        ]
        Attack.__init__(
            self, "MQTT Replay Attack", inputs, default_parameters,
            "Performs a replay attack using the inputs\n"
            "which are provided by the user.")

        logging.basicConfig(
            level=logging.DEBUG,
            format="%(asctime)s:%(levelname)s:%(name)s:%(message)s")

        # Signal handler to exit from function
        signal.signal(signal.SIGINT, self.signal_handler)
    def __init__(self):
        default_parameters = ["", "", "", "", "", 2, 10, 100]
        inputs = [
            InputFormat("Host Name", "host", "", str, mandatory=True),
            InputFormat("Port Number", "port", "", int, mandatory=True),
            InputFormat("Endpoint", "path", "", str, mandatory=True),
            InputFormat("Seed Payload", "payload", "", str, mandatory=True),
            InputFormat("Method",
                        "method_string",
                        self.method_string,
                        str,
                        mandatory=True),
            InputFormat("Fuzzing Round Count", "fuzzing_turn",
                        self.fuzzing_turn, int),
            InputFormat("Number of fuzzer messages", "fuzzing_count",
                        self.fuzzing_count, int),
            InputFormat("Payload length",
                        "max_length_of_random_payload",
                        self.max_length_of_random_payload,
                        int,
                        mandatory=True)
        ]

        Attack.__init__(
            self, "CoAP Random Payload Fuzzing Attack", inputs,
            default_parameters, "    It creates a random payload and sends \n"
            "    this payload to the client.")

        logging.basicConfig(
            level=logging.DEBUG,
            format="%(asctime)s:%(levelname)s:%(name)s:%(message)s")

        # Signal handler to exit from function
        signal.signal(signal.SIGINT, self.signal_handler)
Exemplo n.º 5
0
    def __init__(self):
        default_parameters = ["", "", "", "", "", 10.0]
        inputs = [
            InputFormat("Host Name", "host", "", str, mandatory=True),
            InputFormat("Port Number", "port", "", int, mandatory=True),
            InputFormat("Endpoint", "path", "", str, mandatory=True),
            InputFormat("Method",
                        "method_string",
                        self.method_string,
                        str,
                        mandatory=True),
            InputFormat("Payload", "payload", "", str, mandatory=True),
            InputFormat("Timeout", "timeout", self.timeout, float)
        ]

        Attack.__init__(
            self, "CoAP DoS Attack", inputs, default_parameters,
            "    We send CoAP requests to the client.\n"
            "    The time difference between those requests\n"
            "    can be specified.")

        logging.basicConfig(
            level=logging.DEBUG,
            format="%(asctime)s:%(levelname)s:%(name)s:%(message)s")

        # Signal handler to exit from function
        signal.signal(signal.SIGINT, self.signal_handler)
Exemplo n.º 6
0
    def run(self):
        Attack.run(self)
        self.pre_attack_init()

        self.client.publish(self.client2_name + "/status",
                            "topic_name_fuzzing_type_1")
        print "Please check if the attacked client continues working"

        er = self.client.subscribe("$SYS/#", 1)

        if er[0] == 0:
            self.logger.info(
                "Successfully subscribed to all system topics. ALERT!")
            self.client.unsubscribe("$SYS/#")
        else:
            self.logger.info(
                "Failed to subscribe to all system topics. Very good!")

        # Trying to publish to a system topic, change the number of clients connected
        self.logger.info(
            "Please check from the broker monitor if 999 is published to $SYS/broker/clients/connected, it will be published in a seconds!"
        )
        time.sleep(2)
        self.client.publish("$SYS/broker/clients/connected", 999)
        self.logger.info(
            "Please check from the broker monitor if 999 is published to $SYS/broker/clients/connected."
        )
Exemplo n.º 7
0
    def run(self):
        Attack.run(self)
        self.pre_attack_init()

        # Fill the size list as randomly generated
        size_list = [0, self.max_payload_length]
        size_list.extend([random.randint(0, self.max_payload_length) for _ in range(self.fuzzing_turn - 2)])

        fuzzing = 0
        self.logger.info("Size payload fuzzing is started. Please consider it may take some time.")
        for payload_size in size_list:

            if self.stopped_flag is True:  # Attack is terminated
                break

            # Create payload and send it
            random_strings = "".join([chr(_) for _ in range(65, 91)]) + "".join([chr(_) for _ in range(97, 123)])
            random_character = random.choice(random_strings)
            sized_payload = random_character * payload_size
            PeniotCoAP.make_request(self.client, self.path, self.method, sized_payload)

            # Informative procedures
            self.logger.info("Turn {0} is completed".format(fuzzing + 1))
            self.sent_message_count += 1
            fuzzing += 1
            time.sleep(1)

        if self.stopped_flag is False:
            self.logger.info("Payload size attack is finished.")
        else:
            self.logger.info("Payload size attack has been terminated.")

        if self.client is not None:
            self.client.stop()
            self.client = None
Exemplo n.º 8
0
    def __init__(self):
        default_parameters = ["/dev/ttyUSB0"]
        inputs = [
            InputFormat("Port", "port", self.port, str, mandatory=True),
        ]

        Attack.__init__(self, "BLE Sniffing", inputs, default_parameters, "BLE Sniff Definition")

        logging.basicConfig(level=logging.DEBUG, format="%(asctime)s:%(levelname)s:%(name)s:%(message)s")
    def run(self):
        Attack.run(self)
        self.pre_attack_init()

        payload = self.payload
        if payload is None:
            # Create seed with randomly
            length = random.randint(1, self.max_length_of_random_payload)
            payload = "".join(
                [chr(random.randint(1, 127)) for _ in range(length)])

        self.logger.info("Random payload fuzzing is started.")
        for fuzzing in range(self.turn):

            if self.stopped_flag is True:
                break
            while True:
                try:
                    returned_strings = rdm.get_ascii_decodable_radamsa_malformed_input(
                        payload, self.count)
                    if type(returned_strings) == list:
                        fuzzer_messages = [
                            string.decode("utf-8")
                            for string in returned_strings
                        ]
                    else:
                        fuzzer_messages = returned_strings.decode("utf-8")
                    break
                except UnicodeDecodeError:
                    continue
            # Check whether result is list or not
            if type(fuzzer_messages) == list:
                for message in fuzzer_messages:
                    self.channel.basic_publish(exchange=self.exchange,
                                               routing_key=self.routing_key,
                                               body=message)
                    # Increment sent message count
                    self.sent_message_count += 1
            else:
                self.channel.basic_publish(exchange=self.exchange,
                                           routing_key=self.routing_key,
                                           body=fuzzer_messages)
                # Increment sent message count
                self.sent_message_count += 1
            time.sleep(1)
            self.logger.info("Turn {0} is completed".format(fuzzing + 1))

        if self.stopped_flag is False:
            self.logger.info("Random payload fuzzing is finished.")

        if self.connection is not None:
            self.connection.close()
Exemplo n.º 10
0
    def run(self):
        Attack.run(self)
        self.pre_attack_init()

        self.logger.info("Random payload fuzzing is started.")

        if self.payload is None:
            length = random.randint(1, self.max_length_of_random_payload)
            self.payload = "".join(
                [chr(random.randint(1, 127)) for _ in range(length)])

        for fuzzing in range(self.fuzzing_turn):
            if self.stopped_flag is True:
                break
            while self.stopped_flag is False:
                try:
                    returned_strings = rdm.get_ascii_decodable_radamsa_malformed_input(
                        self.payload, self.fuzzing_count)
                    if type(returned_strings) == list:
                        fuzzer_messages = [
                            string.decode("utf-8")
                            for string in returned_strings
                        ]
                    else:
                        fuzzer_messages = returned_strings.decode("utf-8")
                    break
                except UnicodeDecodeError:
                    continue
            # Check whether result is list or not
            if type(fuzzer_messages) == list:
                for message in fuzzer_messages:
                    PeniotCoAP.make_request(self.client, self.path,
                                            self.method, message)
                    # Increment sent message count
                    self.sent_message_count += 1
            else:
                PeniotCoAP.make_request(self.client, self.path, self.method,
                                        fuzzer_messages)
                # Increment sent message count
                self.sent_message_count += 1
            time.sleep(1)
            self.logger.info("Turn {0} is completed".format(fuzzing + 1))

        if self.stopped_flag is False:
            self.logger.info("Random payload fuzzing is finished.")
        else:
            self.logger.info("Random payload fuzzing has been terminated.")

        if self.client is not None:
            self.client.stop()
            self.client = None
Exemplo n.º 11
0
    def run(self):
        Attack.run(self)
        self.pre_attack_process()  # Sniff the packets so we can replay
        self.pre_attack_init()  # Do the necessary checks
        try:
            selected_packet = self.captured_packets[self.selected_index]
            try:
                self.client.connect(selected_packet.ip.dst_host)
            except Exception as e:
                self.logger.error("Failed to connect to broker")

            self.logger.info(selected_packet)
            self.client.publish(selected_packet.mqtt.topic,
                                selected_packet.mqtt.msg)
        except IndexError as _:
            self.logger.error("Invalid packet index. Indices start from 0...")
Exemplo n.º 12
0
    def __init__(self):
        default_parameters = [""]
        inputs = [
            InputFormat("File Path",
                        "file_path",
                        "",
                        str,
                        mandatory=True,
                        from_captured_packets=True),
        ]

        Attack.__init__(self, "BLE Replay Attack", inputs, default_parameters,
                        "BLE Replay Attack Definition")

        logging.basicConfig(
            level=logging.DEBUG,
            format="%(asctime)s:%(levelname)s:%(name)s:%(message)s")
Exemplo n.º 13
0
    def __init__(self):
        default_parameters = ["127.0.0.1", ""]
        inputs = [
            InputFormat("Broker Address", "address", "", str, mandatory=True),
            InputFormat("Client Name", "client2_name", "", str, mandatory=True)
        ]

        Attack.__init__(self, "MQTT Topic Name Fuzzing Attack", inputs,
                        default_parameters,
                        "    MQTT Topic Name Fuzzing Attack description")

        logging.basicConfig(
            level=logging.DEBUG,
            format="%(asctime)s:%(levelname)s:%(name)s:%(message)s")

        # Signal handler to exit from function
        signal.signal(signal.SIGINT, self.signal_handler)
    def __init__(self):
        default_parameters = ["127.0.0.1"]
        inputs = [
            InputFormat("Broker Address", "address", "", str, mandatory=True)
        ]

        Attack.__init__(
            self, "MQTT Generation Based Fuzzing Attack", inputs,
            default_parameters,
            "   Inject the packets which are created from the scratch\n"
            "   and changed by come of their bits to corrupt the content")

        logging.basicConfig(
            level=logging.DEBUG,
            format="%(asctime)s:%(levelname)s:%(name)s:%(message)s")

        # Signal handler to exit from function
        signal.signal(signal.SIGINT, self.signal_handler)
Exemplo n.º 15
0
    def __init__(self):
        inputs = [
            # You need to decide inputs to be taken from graphical user interface to conduct attack
        ]

        # Auto generated attack name, you can change attack name to be displayed in graphical user interface
        attack_name = "_ATTACK_NAME"
        # Auto generated attack description, you can change or add description for the new attack,
        # you can browse it from ? button nearby attacks in attack menu
        description = "_ATTACK_NAME Description"

        Attack.__init__(self, attack_name, inputs, description)

        # Simple logger and registration
        logging.basicConfig(
            level=logging.DEBUG,
            format="%(asctime)s:%(levelname)s:%(name)s:%(message)s")
        self.logger = logging.getLogger("_ATTACK_NAME")
Exemplo n.º 16
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    def __init__(self):
        default_parameters = ["", "", "", "", 10, self.max_payload_length]
        inputs = [
            InputFormat("Host Name", "host", "", str, mandatory=True),
            InputFormat("Port Number", "port", "", int, mandatory=True),
            InputFormat("Endpoint", "path", "", str, mandatory=True),
            InputFormat("Method", "method_string", self.method_string, str, mandatory=True),
            InputFormat("Fuzzing Round Count", "fuzzing_turn", self.fuzzing_turn, int),
            InputFormat("Maximum Payload Size", "max_payload_length", self.max_payload_length, int, mandatory=True)
        ]

        Attack.__init__(self, "CoAP Payload Size Fuzzer Attack", inputs, default_parameters,
                        "    CoAP Payload size fuzzer attack description")

        logging.basicConfig(level=logging.DEBUG, format="%(asctime)s:%(levelname)s:%(name)s:%(message)s")

        # Signal handler to exit from function
        signal.signal(signal.SIGINT, self.signal_handler)
Exemplo n.º 17
0
    def __init__(self):
        default_parameters = ["127.0.0.1", "#", 10, 10, ""]
        inputs = [
            InputFormat("Broker Address", "address", "", str, mandatory=True),
            InputFormat("Topic", "topic", "", str, mandatory=True),
            InputFormat("Fuzzing Turn", "turn", self.turn, int),
            InputFormat("Fuzzing Message Count in each Turn", "count", self.count, int),
            InputFormat("Payload", "payload", "", str, mandatory=True)
        ]

        Attack.__init__(self, "MQTT Random Payload Fuzzing Attack", inputs, default_parameters,
                        "    It creates a random payload and sends \n"
                        "    this payload to the client.")

        logging.basicConfig(level=logging.DEBUG, format="%(asctime)s:%(levelname)s:%(name)s:%(message)s")

        # Signal handler to exit from function
        signal.signal(signal.SIGINT, self.signal_handler)
Exemplo n.º 18
0
    def __init__(self):
        default_parameters = ["", "", "", "", "", "", 10.0]
        inputs = [
            InputFormat("Host Name", "host", "localhost", str, mandatory=True),
            InputFormat("Queue Name",
                        "queue",
                        "peniot-queue",
                        str,
                        mandatory=True),
            InputFormat("Exchange Name",
                        "exchange",
                        "peniot-exchange",
                        str,
                        mandatory=True),
            InputFormat("Routing Key",
                        "routing_key",
                        "peniot-routing-key",
                        str,
                        mandatory=True),
            InputFormat("Message Body",
                        "body",
                        "peniot-body",
                        str,
                        mandatory=True),
            InputFormat("Exchange Type",
                        "exchange_type",
                        "direct",
                        str,
                        mandatory=True),
            InputFormat("Timeout", "timeout", self.timeout, float)
        ]

        Attack.__init__(
            self, "AMQP DoS Attack", inputs, default_parameters,
            "    We send AMQP requests to the client.\n"
            "    The time difference between those requests\n"
            "    can be specified.")

        logging.basicConfig(
            level=logging.DEBUG,
            format="%(asctime)s:%(levelname)s:%(name)s:%(message)s")

        # Signal handler to exit from function
        signal.signal(signal.SIGINT, self.signal_handler)
Exemplo n.º 19
0
    def __init__(self):
        default_parameters = ["127.0.0.1", "#", 10]
        inputs = [
            InputFormat("Broker Address", "host", "", str, mandatory=True),
            InputFormat("Topic Name", "topic", self.topic, str,
                        mandatory=True),
            InputFormat("Fuzzing Turn", "fuzzing_turn", self.fuzzing_turn, int)
        ]

        Attack.__init__(self, "MQTT Payload Size Fuzzer Attack", inputs,
                        default_parameters,
                        "    MQTT Payload size fuzzer attack description")

        logging.basicConfig(
            level=logging.DEBUG,
            format="%(asctime)s:%(levelname)s:%(name)s:%(message)s")

        # Signal handler to exit from function
        signal.signal(signal.SIGINT, self.signal_handler)
Exemplo n.º 20
0
    def run(self):
        Attack.run(self)
        self.pre_attack_init()

        self.client.loop_start()
        self.logger.info("Random payload fuzzing is started.")

        if self.payload is None:
            length = random.randint(1, self.max_length_of_random_payload)
            self.payload = "".join([chr(random.randint(1, 127)) for _ in range(length)])

        for fuzzing in range(self.turn):

            if self.stopped_flag is True:
                break

            while True:
                try:
                    returned_strings = rdm.get_ascii_decodable_radamsa_malformed_input(self.payload, self.count)
                    if type(returned_strings) == list:
                        fuzzer_messages = [string.decode("utf-8") for string in returned_strings]
                    else:
                        fuzzer_messages = returned_strings.decode("utf-8")
                    break
                except UnicodeDecodeError:
                    self.logger.debug("Error occurred while decoding payload in random payload fuzzing.")
                    continue
            # Check whether result is list or not
            if type(fuzzer_messages) == list:
                for message in fuzzer_messages:
                    self.client.publish(self.topic, message)
                    # Increment sent message count
                    self.sent_message_count += 1
            else:
                self.client.publish(self.topic, fuzzer_messages)
                # Increment sent message count
                self.sent_message_count += 1
            time.sleep(1)
            self.logger.info("Turn {0} is completed with message content = {1}".format(fuzzing + 1, fuzzer_messages))

        self.client.loop_stop()
        self.logger.info("Random payload fuzzing is finished.")
Exemplo n.º 21
0
    def __init__(self):
        default_parameters = ["", "", "", "", "", "", 10, 1]
        inputs = [
            InputFormat("Host Name", "host", "localhost", str, mandatory=True),
            InputFormat("Queue Name",
                        "queue",
                        "peniot-queue",
                        str,
                        mandatory=True),
            InputFormat("Exchange Name",
                        "exchange",
                        "peniot-exchange",
                        str,
                        mandatory=True),
            InputFormat("Routing Key",
                        "routing_key",
                        "peniot-routing-key",
                        str,
                        mandatory=True),
            InputFormat("Payload", "payload", "", str),
            InputFormat("Exchange Type",
                        "exchange_type",
                        "direct",
                        str,
                        mandatory=True),
            InputFormat("Fuzzing Turn", "turn", 10, int),
            InputFormat("Fuzzing Count", "count", 1, int)
        ]

        Attack.__init__(
            self, "AMQP Random Payload Fuzzing Attack", inputs,
            default_parameters, "    It creates a random payload and sends \n"
            "    this payload to the client.")

        logging.basicConfig(
            level=logging.DEBUG,
            format="%(asctime)s:%(levelname)s:%(name)s:%(message)s")

        # Signal handler to exit from function
        signal.signal(signal.SIGINT, self.signal_handler)
Exemplo n.º 22
0
    def run(self):
        Attack.run(self)
        self.pre_attack_init()

        assert self.turn >= 2
        # Fill the size list as randomly generated
        size_list = [0, self.max_payload_length]
        size_list.extend([
            random.randint(0, self.max_payload_length)
            for _ in range(self.turn - 2)
        ])

        fuzzing = 0
        self.logger.info(
            "Size payload fuzzing is started. Please consider it may take some time."
        )
        for payload_size in size_list:

            if self.stopped_flag is True:
                break
            # Create payload and send it
            random_strings = "".join([chr(_)
                                      for _ in range(65, 91)]) + "".join(
                                          [chr(_) for _ in range(97, 123)])
            random_character = random.choice(random_strings)
            sized_payload = random_character * payload_size
            self.channel.basic_publish(exchange=self.exchange,
                                       routing_key=self.routing_key,
                                       body=sized_payload)

            # Informative procedures
            self.logger.info("Turn {0} is completed".format(fuzzing + 1))
            self.sent_message_count += 1
            fuzzing += 1
            time.sleep(1)

        if self.stopped_flag is False:
            self.logger.info("Payload size attack is finished.")
Exemplo n.º 23
0
    def __init__(self):
        default_parameters = ["", "", "", "", "", "", 10]
        inputs = [
            InputFormat("Host Name", "host", "localhost", str, mandatory=True),
            InputFormat("Queue Name",
                        "queue",
                        "peniot-queue",
                        str,
                        mandatory=True),
            InputFormat("Exchange Name",
                        "exchange",
                        "peniot-exchange",
                        str,
                        mandatory=True),
            InputFormat("Routing Key",
                        "routing_key",
                        "peniot-routing-key",
                        str,
                        mandatory=True),
            InputFormat("Payload", "payload", "", str, mandatory=True),
            InputFormat("Exchange Type",
                        "exchange_type",
                        "direct",
                        str,
                        mandatory=True),
            InputFormat("Fuzzing Turn", "turn", 10, int)
        ]
        Attack.__init__(self, "AMQP Payload Size Fuzzer Attack", inputs,
                        default_parameters,
                        "    AMQP Payload size fuzzer attack description")

        logging.basicConfig(
            level=logging.DEBUG,
            format="%(asctime)s:%(levelname)s:%(name)s:%(message)s")

        # Signal handler to exit from function
        signal.signal(signal.SIGINT, self.signal_handler)
Exemplo n.º 24
0
    def run(self):
        Attack.run(self)
        self.pre_attack_init()

        # Fill the size list as randomly generated
        size_list = [0, self.max_payload_length]
        size_list.extend([
            random.randint(0, self.max_payload_length)
            for _ in range(self.fuzzing_turn - 2)
        ])

        fuzzing = 0
        self.logger.info(
            "Size payload fuzzing is started. Please consider it may take some time."
        )
        for payload_size in size_list:

            if self.stopped_flag is True:  # An external interrupt can force us to finish the attack
                break
            # Create payload and send it
            random_strings = "".join([chr(_)
                                      for _ in range(65, 91)]) + "".join(
                                          [chr(_) for _ in range(97, 123)])
            random_character = random.choice(random_strings)
            sized_payload = random_character * payload_size
            self.client.publish(self.topic, sized_payload)

            # Increment sent message count
            self.logger.info(
                "Turn {0} is completed and {1} bytes of message is sent.".
                format(fuzzing + 1, payload_size))
            self.sent_message_count += 1
            fuzzing += 1
            time.sleep(1)
        if self.stopped_flag is False:
            self.logger.info("Payload size attack is finished.")
    def run(self):
        Attack.run(self)
        self.pre_attack_init()

        subscribe = paho.SUBSCRIBE
        unsubscribe = paho.UNSUBSCRIBE

        # Quality of service creator
        random_qosses = [0, 1, 2]

        # Currently include "A...Za...z"
        random_strings = "".join([chr(_) for _ in range(65, 91)]) + "".join(
            [chr(_) for _ in range(97, 123)])
        '''
            (fuzz_client, message_type, topics, dup=False, optional_remaining_length=2,
            command_dup_shift_times=3, command_base_xor_part=0x2):
        '''
        test_cases = [
            dict(message_type=subscribe,
                 topics=[
                     self.random_topic_generator(subscribe, random_strings,
                                                 random_qosses)
                 ],
                 dup=False,
                 optional_remaining_length=2,
                 command_dup_shift_times=3,
                 command_base_xor_part=0x2),
            dict(message_type=subscribe,
                 topics=[
                     self.random_topic_generator(subscribe, random_strings,
                                                 random_qosses),
                     self.random_topic_generator(subscribe, random_strings,
                                                 random_qosses)
                 ],
                 dup=False,
                 optional_remaining_length=3,
                 command_dup_shift_times=3,
                 command_base_xor_part=0x2),
            dict(message_type=subscribe,
                 topics=[
                     self.random_topic_generator(subscribe, random_strings,
                                                 random_qosses)
                 ],
                 dup=False,
                 optional_remaining_length=2,
                 command_dup_shift_times=5,
                 command_base_xor_part=0x2),
            dict(message_type=subscribe,
                 topics=[
                     self.random_topic_generator(subscribe, random_strings,
                                                 random_qosses)
                 ],
                 dup=False,
                 optional_remaining_length=2,
                 command_dup_shift_times=3,
                 command_base_xor_part=0x5),
            dict(message_type=unsubscribe,
                 topics=[
                     self.random_topic_generator(unsubscribe, random_strings,
                                                 random_qosses)
                 ],
                 dup=False,
                 optional_remaining_length=2,
                 command_dup_shift_times=3,
                 command_base_xor_part=0x2),
            dict(message_type=unsubscribe,
                 topics=[
                     self.random_topic_generator(unsubscribe, random_strings,
                                                 random_qosses),
                     self.random_topic_generator(unsubscribe, random_strings,
                                                 random_qosses)
                 ],
                 dup=False,
                 optional_remaining_length=3,
                 command_dup_shift_times=3,
                 command_base_xor_part=0x2),
            dict(message_type=unsubscribe,
                 topics=[
                     self.random_topic_generator(unsubscribe, random_strings,
                                                 random_qosses)
                 ],
                 dup=False,
                 optional_remaining_length=2,
                 command_dup_shift_times=5,
                 command_base_xor_part=0x2),
            dict(message_type=unsubscribe,
                 topics=[
                     self.random_topic_generator(unsubscribe, random_strings,
                                                 random_qosses)
                 ],
                 dup=False,
                 optional_remaining_length=2,
                 command_dup_shift_times=3,
                 command_base_xor_part=0x5)
        ]

        for test_case in test_cases:

            if self.stopped_flag is True:
                break

            self.send_subscribe_or_unsubscribe(
                self.client, test_case["message_type"], test_case["topics"],
                test_case["dup"], test_case["optional_remaining_length"],
                test_case["command_dup_shift_times"],
                test_case["command_base_xor_part"])
            # Increment sent message count
            self.sent_message_count += 1

            self.logger.info(
                "Test case {0} has been run in generation based fuzzing".
                format(str(test_case)))
            time.sleep(1)