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 EternalBlueExploit(BaseAttack.BaseAttack): def __init__(self, statistics, pcap_file_path): """ Creates a new instance of the EternalBlue Exploit. :param statistics: A reference to the statistics class. """ # Initialize attack super(EternalBlueExploit, self).__init__(statistics, "EternalBlue Exploit", "Injects an EternalBlue 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.PORT_SOURCE: ParameterTypes.TYPE_PORT, Param.MAC_DESTINATION: ParameterTypes.TYPE_MAC_ADDRESS, Param.IP_DESTINATION: ParameterTypes.TYPE_IP_ADDRESS, 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.INJECT_AFTER_PACKET, randint(0, self.statistics.get_packet_count())) self.add_param_value(Param.PORT_SOURCE, str(RandShort())) self.add_param_value(Param.PACKETS_PER_SECOND, randint(1, 64)) # victim configuration # TO-DO: confirm that ip.dst uses Win OS 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, maxdelay): """ 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. """ return timestamp + uniform(0.1 / pps, maxdelay) # Timestamp timestamp_next_pkt = self.get_param_value(Param.INJECT_AT_TIMESTAMP) # TO-DO: find better pkt rate pps = self.get_param_value(Param.PACKETS_PER_SECOND) randomdelay = Lea.fromValFreqsDict({1 / pps: 70, 2 / pps: 30, 5 / pps: 15, 10 / pps: 3}) # Initialize parameters packets = [] mac_source = self.get_param_value(Param.MAC_SOURCE) ip_source = self.get_param_value(Param.IP_SOURCE) port_source = self.get_param_value(Param.PORT_SOURCE) mac_destination = self.get_param_value(Param.MAC_DESTINATION) ip_destination = self.get_param_value(Param.IP_DESTINATION) path_attack_pcap = None # Scan (MS17) for EternalBlue # Read Win7_eternalblue_scan_vulnerable pcap file orig_ip_dst = None exploit_raw_packets = RawPcapReader("Win7_eternalblue_scan.pcap") for pkt_num, pkt in enumerate(exploit_raw_packets): eth_frame = Ether(pkt[0]) ip_pkt = eth_frame.payload tcp_pkt = ip_pkt.payload smb_port = 445 if pkt_num == 0: if tcp_pkt.getfieldval("dport") == smb_port: orig_ip_dst = ip_pkt.getfieldval("dst") # Request if ip_pkt.getfieldval("dst") == orig_ip_dst: # 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) # TCP tcp_pkt.setfieldval("sport",port_source) # Reply 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) # TCP tcp_pkt.setfieldval("dport", port_source) new_pkt = (eth_frame / ip_pkt / tcp_pkt) # TO-DO: reply should have different timestamp delay new_pkt.time = timestamp_next_pkt packets.append(new_pkt) maxdelay = randomdelay.random() timestamp_next_pkt = update_timestamp(timestamp_next_pkt, pps, maxdelay) # Inject EternalBlue exploit packets # Read Win7_eternalblue_exploit pcap file exploit_raw_packets = RawPcapReader("Win7_eternalblue_exploit.pcap") for pkt_num, pkt in enumerate(exploit_raw_packets): eth_frame = Ether(pkt[0]) ip_pkt = eth_frame.payload tcp_pkt = ip_pkt.payload smb_port = 445 if pkt_num == 0: if tcp_pkt.getfieldval("dport") == smb_port: orig_ip_dst = ip_pkt.getfieldval("dst") # Request if ip_pkt.getfieldval("dst") == orig_ip_dst: # 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) # TCP #tcp_pkt.setfieldval("sport", port_source) # Reply 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) # TCP #tcp_pkt.setfieldval("dport", port_source) new_pkt = (eth_frame / ip_pkt / tcp_pkt) # TO-DO: reply should have different timestamp delay new_pkt.time = timestamp_next_pkt packets.append(new_pkt) maxdelay = randomdelay.random() timestamp_next_pkt = update_timestamp(timestamp_next_pkt, pps, maxdelay) # 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