ID2T-toolkit/code/Attack/JoomlaRegPrivExploit.py

import logging
from random import randint, uniform

from lea import Lea

from Attack import BaseAttack
from Attack.AttackParameters import Parameter as Param
from Attack.AttackParameters import ParameterTypes

logging.getLogger("scapy.runtime").setLevel(logging.ERROR)
# noinspection PyPep8
from scapy.utils import RawPcapReader
from scapy.layers.inet import IP, Ether, TCP, RandShort


class JoomlaRegPrivExploit(BaseAttack.BaseAttack):
    template_attack_pcap_path = "resources/joomla_registration_privesc.pcap"
    # HTTP port
    http_port = 80
    # Metasploit experiments show this range of ports
    minDefaultPort = 30000
    maxDefaultPort = 50000

    def __init__(self, statistics, pcap_file_path):
        """
        Creates a new instance of the Joomla Registeration Privileges Escalation Exploit.

        :param statistics: A reference to the statistics class.
        """
        # Initialize attack
        super(JoomlaRegPrivExploit, self).__init__(statistics, "JoomlaRegPrivesc Exploit", "Injects an JoomlaRegPrivesc exploit'",
                                        "Resource Exhaustion")

        # Define allowed parameters and their type
        self.supported_params = {
            Param.MAC_SOURCE: ParameterTypes.TYPE_MAC_ADDRESS,
            Param.IP_SOURCE: ParameterTypes.TYPE_IP_ADDRESS,
            Param.MAC_DESTINATION: ParameterTypes.TYPE_MAC_ADDRESS,
            Param.IP_DESTINATION: ParameterTypes.TYPE_IP_ADDRESS,
            Param.TARGET_HOST: ParameterTypes.TYPE_DOMAIN,
            #Param.TARGET_URI: ParameterTypes.TYPE_URI,
            Param.INJECT_AT_TIMESTAMP: ParameterTypes.TYPE_FLOAT,
            Param.INJECT_AFTER_PACKET: ParameterTypes.TYPE_PACKET_POSITION,
            Param.PACKETS_PER_SECOND: ParameterTypes.TYPE_FLOAT
        }

        # PARAMETERS: initialize with default utilsvalues
        # (values are overwritten if user specifies them)
        most_used_ip_address = self.statistics.get_most_used_ip_address()
        if isinstance(most_used_ip_address, list):
            most_used_ip_address = most_used_ip_address[0]
        self.add_param_value(Param.IP_SOURCE, most_used_ip_address)
        self.add_param_value(Param.MAC_SOURCE, self.statistics.get_mac_address(most_used_ip_address))
        #self.add_param_value(Param.TARGET_URI, '/')
        self.add_param_value(Param.TARGET_HOST, "www.hackme.com")
        self.add_param_value(Param.INJECT_AFTER_PACKET, randint(0, self.statistics.get_packet_count()))
        self.add_param_value(Param.PACKETS_PER_SECOND,
                             (self.statistics.get_pps_sent(most_used_ip_address) +
                              self.statistics.get_pps_received(most_used_ip_address)) / 2)

        # victim configuration
        # consider that the destination has port 80 opened
        random_ip_address = self.statistics.get_random_ip_address()
        self.add_param_value(Param.IP_DESTINATION, random_ip_address)

        destination_mac = self.statistics.get_mac_address(random_ip_address)
        if isinstance(destination_mac, list) and len(destination_mac) == 0:
            destination_mac = self.generate_random_mac_address()
        self.add_param_value(Param.MAC_DESTINATION, destination_mac)

    def generate_attack_pcap(self):
        def update_timestamp(timestamp, pps):
            """
            Calculates the next timestamp to be used based on the packet per second rate (pps) and the maximum delay.

            :return: Timestamp to be used for the next packet.
            """
            # Calculate the request timestamp
            # A distribution to imitate the bursty behavior of traffic
            randomdelay = Lea.fromValFreqsDict({1 / pps: 70, 2 / pps: 20, 5 / pps: 7, 10 / pps: 3})
            return timestamp + uniform(1 / pps, randomdelay.random())

        # Aidmar
        def getIntervalPPS(complement_interval_pps, timestamp):
            """
            Gets the packet rate (pps) in specific time interval.

            :return: the corresponding packet rate for packet rate (pps) .
            """
            for row in complement_interval_pps:
                if timestamp <= row[0]:
                    return row[1]
            return complement_interval_pps[-1][1]  # in case the timstamp > capture max timestamp

        # Timestamp
        timestamp_next_pkt = self.get_param_value(Param.INJECT_AT_TIMESTAMP)

        pps = self.get_param_value(Param.PACKETS_PER_SECOND)

        # Calculate complement packet rates of BG traffic per interval
        complement_interval_pps = self.statistics.calculate_complement_packet_rates(pps)

        # Initialize parameters
        packets = []
        mac_source = self.get_param_value(Param.MAC_SOURCE)
        ip_source = self.get_param_value(Param.IP_SOURCE)
        mac_destination = self.get_param_value(Param.MAC_DESTINATION)
        ip_destination = self.get_param_value(Param.IP_DESTINATION)
        target_host = self.get_param_value(Param.TARGET_HOST)
        target_uri = "/" #self.get_param_value(Param.TARGET_URI)

        # Check ip.src == ip.dst
        self.ip_src_dst_equal_check(ip_source, ip_destination)

        path_attack_pcap = None

        # Set TTL based on TTL distribution of IP address
        source_ttl_dist = self.statistics.get_ttl_distribution(ip_source)
        if len(source_ttl_dist) > 0:
            source_ttl_prob_dict = Lea.fromValFreqsDict(source_ttl_dist)
            source_ttl_value = source_ttl_prob_dict.random()
        else:
            source_ttl_value = self.statistics.process_db_query("most_used(ttlValue)")

        destination_ttl_dist = self.statistics.get_ttl_distribution(ip_destination)
        if len(destination_ttl_dist) > 0:
            destination_ttl_prob_dict = Lea.fromValFreqsDict(destination_ttl_dist)
            destination_ttl_value = destination_ttl_prob_dict.random()
        else:
            destination_ttl_value = self.statistics.process_db_query("most_used(ttlValue)")

        # Inject Joomla_registration_privesc
        # Read joomla_registration_privesc pcap file
        orig_ip_dst = None
        exploit_raw_packets = RawPcapReader(self.template_attack_pcap_path)
        inter_arrival_time_dist = self.get_inter_arrival_time_dist(exploit_raw_packets)
        timeSteps = Lea.fromValFreqsDict(inter_arrival_time_dist)
        exploit_raw_packets = RawPcapReader(self.template_attack_pcap_path)

        port_source = randint(self.minDefaultPort,self.maxDefaultPort) # experiments show this range of ports

        # Random TCP sequence numbers
        global attacker_seq
        attacker_seq = randint(1000,50000)
        global victim_seq
        victim_seq = randint(1000,50000)

        for pkt_num, pkt in enumerate(exploit_raw_packets):
            eth_frame = Ether(pkt[0])
            ip_pkt = eth_frame.payload
            tcp_pkt = ip_pkt.payload
            str_tcp_seg = str(tcp_pkt.payload)

            # Clean payloads
            eth_frame.payload = b''
            ip_pkt.payload = b''
            tcp_pkt.payload = b''

            if pkt_num == 0:
                prev_orig_port_source = tcp_pkt.getfieldval("sport")
                if tcp_pkt.getfieldval("dport") == self.http_port:
                    orig_ip_dst = ip_pkt.getfieldval("dst") # victim IP

            # Request: Attacker --> vicitm
            if ip_pkt.getfieldval("dst") == orig_ip_dst: # victim IP
                # There are 7 TCP connections with different source ports, for each of them we generate random port
                if tcp_pkt.getfieldval("sport") != prev_orig_port_source:
                    port_source = randint(self.minDefaultPort, self.maxDefaultPort)
                    prev_orig_port_source = tcp_pkt.getfieldval("sport")
                    # New connection, new random TCP sequence numbers
                    attacker_seq = randint(1000, 50000)
                    victim_seq = randint(1000, 50000)
                    # First packet in a connection has ACK = 0
                    tcp_pkt.setfieldval("ack", 0)

                # Ether
                eth_frame.setfieldval("src", mac_source)
                eth_frame.setfieldval("dst", mac_destination)
                # IP
                ip_pkt.setfieldval("src", ip_source)
                ip_pkt.setfieldval("dst", ip_destination)
                ip_pkt.setfieldval("ttl", source_ttl_value)
                # TCP
                tcp_pkt.setfieldval("sport",port_source)

                if len(str_tcp_seg) > 0:
                    # convert payload bytes to string => str = "b'..\\r\\n..'" additional characters are added in the string,
                    # mainly backslashes to escape single quotes and whitespaces
                    str_tcp_seg = str_tcp_seg[2:-1]
                    str_tcp_seg = str_tcp_seg.replace('/joomla360', target_uri)
                    str_tcp_seg = str_tcp_seg.replace(orig_ip_dst, target_host)
                    str_tcp_seg = self.clean_white_spaces(str_tcp_seg)

                # TCP Seq, Ack
                if tcp_pkt.getfieldval("ack") != 0:
                    tcp_pkt.setfieldval("ack", victim_seq)
                tcp_pkt.setfieldval("seq", attacker_seq)
                if not(tcp_pkt.getfieldval("flags") == 16 and len(str_tcp_seg) == 0): # flags=A:
                    attacker_seq += max(len(str_tcp_seg),1)

                new_pkt = (eth_frame / ip_pkt/ tcp_pkt / str_tcp_seg)
                new_pkt.time = timestamp_next_pkt

                pps = max(getIntervalPPS(complement_interval_pps, timestamp_next_pkt), 10)
                timestamp_next_pkt = update_timestamp(timestamp_next_pkt, pps) + float(timeSteps.random())

            # Reply: Victim --> attacker
            else:
                # Ether
                eth_frame.setfieldval("src", mac_destination)
                eth_frame.setfieldval("dst", mac_source)
                # IP
                ip_pkt.setfieldval("src", ip_destination)
                ip_pkt.setfieldval("dst", ip_source)
                ip_pkt.setfieldval("ttl", destination_ttl_value)
                # TCP
                tcp_pkt.setfieldval("dport", port_source)

                if len(str_tcp_seg) > 0:
                    # convert payload bytes to string => str = "b'..\\r\\n..'" additional characters are added in the string,
                    # mainly backslashes to escape single quotes and whitespaces
                    str_tcp_seg = str_tcp_seg[2:-1]
                    str_tcp_seg = str_tcp_seg.replace('/joomla360', target_uri)
                    str_tcp_seg = str_tcp_seg.replace(orig_ip_dst, target_host)
                    str_tcp_seg = self.clean_white_spaces(str_tcp_seg)

                # TCP Seq, ACK
                tcp_pkt.setfieldval("ack", attacker_seq)
                tcp_pkt.setfieldval("seq", victim_seq)
                strLen = len(str_tcp_seg)
                if not(tcp_pkt.getfieldval("flags") == 16 and strLen == 0): # flags=A:
                    victim_seq += max(strLen, 1)

                new_pkt = (eth_frame / ip_pkt / tcp_pkt / str_tcp_seg)
                pps = max(getIntervalPPS(complement_interval_pps, timestamp_next_pkt), 10)
                timestamp_next_pkt = update_timestamp(timestamp_next_pkt, pps) + float(timeSteps.random())
                new_pkt.time = timestamp_next_pkt

            packets.append(new_pkt)

        # Store timestamp of first packet (for attack label)
        self.attack_start_utime = packets[0].time
        self.attack_end_utime = packets[-1].time

        if len(packets) > 0:
            packets = sorted(packets, key=lambda pkt: pkt.time)
            path_attack_pcap = self.write_attack_pcap(packets, True, path_attack_pcap)

        # return packets sorted by packet time_sec_start
        # pkt_num+1: because pkt_num starts at 0
        return pkt_num + 1, path_attack_pcap