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- import logging
- import random as rnd
- import lea
- import scapy.layers.inet as inet
- import scapy.utils
- import Attack.AttackParameters as atkParam
- import Attack.BaseAttack as BaseAttack
- import ID2TLib.Utility as Util
- logging.getLogger("scapy.runtime").setLevel(logging.ERROR)
- class SQLiAttack(BaseAttack.BaseAttack):
- template_attack_pcap_path = Util.RESOURCE_DIR + "ATutorSQLi.pcap"
-
- http_port = 80
-
- minDefaultPort = 30000
- maxDefaultPort = 50000
- def __init__(self):
- """
- Creates a new instance of the SQLi Attack.
- """
-
- super(SQLiAttack, self).__init__("SQLi Attack", "Injects a SQLi attack'",
- "Privilege elevation")
- self.pkt_num = 0
- self.path_attack_pcap = None
-
- self.supported_params.update({
- atkParam.Parameter.MAC_SOURCE: atkParam.ParameterTypes.TYPE_MAC_ADDRESS,
- atkParam.Parameter.IP_SOURCE: atkParam.ParameterTypes.TYPE_IP_ADDRESS,
- atkParam.Parameter.MAC_DESTINATION: atkParam.ParameterTypes.TYPE_MAC_ADDRESS,
- atkParam.Parameter.IP_DESTINATION: atkParam.ParameterTypes.TYPE_IP_ADDRESS,
- atkParam.Parameter.PORT_DESTINATION: atkParam.ParameterTypes.TYPE_PORT,
- atkParam.Parameter.TARGET_HOST: atkParam.ParameterTypes.TYPE_DOMAIN,
-
- atkParam.Parameter.INJECT_AT_TIMESTAMP: atkParam.ParameterTypes.TYPE_FLOAT,
- atkParam.Parameter.INJECT_AFTER_PACKET: atkParam.ParameterTypes.TYPE_PACKET_POSITION,
- atkParam.Parameter.PACKETS_PER_SECOND: atkParam.ParameterTypes.TYPE_FLOAT
- })
- def init_params(self):
- """
- Initialize the parameters of this attack using the user supplied command line parameters.
- Use the provided statistics to calculate default parameters and to process user
- supplied queries.
- """
-
-
-
- most_used_ip_address = self.statistics.get_most_used_ip_address()
- self.add_param_value(atkParam.Parameter.IP_SOURCE, most_used_ip_address)
- self.add_param_value(atkParam.Parameter.MAC_SOURCE, self.statistics.get_mac_address(most_used_ip_address))
-
- random_ip_address = self.statistics.get_random_ip_address()
- self.add_param_value(atkParam.Parameter.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(atkParam.Parameter.MAC_DESTINATION, destination_mac)
- self.add_param_value(atkParam.Parameter.PORT_DESTINATION, self.http_port)
-
- self.add_param_value(atkParam.Parameter.TARGET_HOST, "www.hackme.com")
-
- self.add_param_value(atkParam.Parameter.INJECT_AFTER_PACKET, rnd.randint(0, self.statistics.get_packet_count()))
- self.add_param_value(atkParam.Parameter.PACKETS_PER_SECOND,
- (self.statistics.get_pps_sent(most_used_ip_address) +
- self.statistics.get_pps_received(most_used_ip_address)) / 2)
- def generate_attack_packets(self):
- """
- Creates the attack packets.
- """
-
- timestamp_next_pkt = self.get_param_value(atkParam.Parameter.INJECT_AT_TIMESTAMP)
- pps = self.get_param_value(atkParam.Parameter.PACKETS_PER_SECOND)
-
- complement_interval_pps = self.statistics.calculate_complement_packet_rates(pps)
-
- self.packets = []
- mac_source = self.get_param_value(atkParam.Parameter.MAC_SOURCE)
- ip_source = self.get_param_value(atkParam.Parameter.IP_SOURCE)
- if isinstance(ip_source, list):
- ip_source = ip_source[0]
- mac_destination = self.get_param_value(atkParam.Parameter.MAC_DESTINATION)
- ip_destination = self.get_param_value(atkParam.Parameter.IP_DESTINATION)
- if isinstance(ip_destination, list):
- ip_destination = ip_destination[0]
- port_destination = self.get_param_value(atkParam.Parameter.PORT_DESTINATION)
- target_host = self.get_param_value(atkParam.Parameter.TARGET_HOST)
- target_uri = "/"
-
- self.ip_src_dst_equal_check(ip_source, ip_destination)
-
- source_ttl_dist = self.statistics.get_ttl_distribution(ip_source)
- if len(source_ttl_dist) > 0:
- source_ttl_prob_dict = lea.Lea.fromValFreqsDict(source_ttl_dist)
- source_ttl_value = source_ttl_prob_dict.random()
- else:
- source_ttl_value = Util.handle_most_used_outputs(self.statistics.get_most_used_ttl_value())
- destination_ttl_dist = self.statistics.get_ttl_distribution(ip_destination)
- if len(destination_ttl_dist) > 0:
- destination_ttl_prob_dict = lea.Lea.fromValFreqsDict(destination_ttl_dist)
- destination_ttl_value = destination_ttl_prob_dict.random()
- else:
- destination_ttl_value = Util.handle_most_used_outputs(
- self.statistics.get_most_used_ttl_value())
-
-
- orig_ip_dst = None
- exploit_raw_packets = scapy.utils.RawPcapReader(self.template_attack_pcap_path)
- inter_arrival_times, inter_arrival_time_dist = self.get_inter_arrival_time(exploit_raw_packets, True)
- time_steps = lea.Lea.fromValFreqsDict(inter_arrival_time_dist)
- exploit_raw_packets.close()
- exploit_raw_packets = scapy.utils.RawPcapReader(self.template_attack_pcap_path)
- port_source = rnd.randint(self.minDefaultPort, self.maxDefaultPort)
-
- global attacker_seq
- attacker_seq = rnd.randint(1000, 50000)
- global victim_seq
- victim_seq = rnd.randint(1000, 50000)
- for self.pkt_num, pkt in enumerate(exploit_raw_packets):
- eth_frame = inet.Ether(pkt[0])
- ip_pkt = eth_frame.payload
- tcp_pkt = ip_pkt.payload
- str_tcp_seg = str(tcp_pkt.payload)
-
- eth_frame.payload = b''
- ip_pkt.payload = b''
- tcp_pkt.payload = b''
-
- if self.pkt_num == 0:
- prev_orig_port_source = tcp_pkt.getfieldval("sport")
- orig_ip_dst = ip_pkt.getfieldval("dst")
-
- if tcp_pkt.getfieldval("dport") != 80 and tcp_pkt.getfieldval("sport") != 80:
-
- attacker_seq = rnd.randint(1000, 50000)
- victim_seq = rnd.randint(1000, 50000)
-
- tcp_pkt.setfieldval("ack", 0)
-
- if ip_pkt.getfieldval("dst") == orig_ip_dst:
-
- if tcp_pkt.getfieldval("sport") != prev_orig_port_source and tcp_pkt.getfieldval("dport") != 4444 \
- and (tcp_pkt.getfieldval("dport") == 80 or tcp_pkt.getfieldval("sport") == 80):
- port_source = rnd.randint(self.minDefaultPort, self.maxDefaultPort)
- prev_orig_port_source = tcp_pkt.getfieldval("sport")
-
- attacker_seq = rnd.randint(1000, 50000)
- victim_seq = rnd.randint(1000, 50000)
-
- tcp_pkt.setfieldval("ack", 0)
-
- eth_frame.setfieldval("src", mac_source)
- eth_frame.setfieldval("dst", mac_destination)
-
- ip_pkt.setfieldval("src", ip_source)
- ip_pkt.setfieldval("dst", ip_destination)
- ip_pkt.setfieldval("ttl", source_ttl_value)
-
-
- if tcp_pkt.getfieldval("dport") == 80 or tcp_pkt.getfieldval("sport") == 80:
- tcp_pkt.setfieldval("sport", port_source)
- tcp_pkt.setfieldval("dport", port_destination)
- str_tcp_seg = self.modify_http_header(str_tcp_seg, '/ATutor', target_uri, orig_ip_dst, target_host)
-
- 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):
- 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(Util.get_interval_pps(complement_interval_pps, timestamp_next_pkt), 10)
- timestamp_next_pkt = Util.update_timestamp(timestamp_next_pkt, pps) + float(time_steps.random())
-
- else:
-
- eth_frame.setfieldval("src", mac_destination)
- eth_frame.setfieldval("dst", mac_source)
-
- ip_pkt.setfieldval("src", ip_destination)
- ip_pkt.setfieldval("dst", ip_source)
- ip_pkt.setfieldval("ttl", destination_ttl_value)
-
-
- if tcp_pkt.getfieldval("dport") == 80 or tcp_pkt.getfieldval("sport") == 80:
- tcp_pkt.setfieldval("dport", port_source)
- tcp_pkt.setfieldval("sport", port_destination)
- str_tcp_seg = self.modify_http_header(str_tcp_seg, '/ATutor', target_uri, orig_ip_dst, target_host)
-
- 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):
- victim_seq += max(strLen, 1)
- new_pkt = (eth_frame / ip_pkt / tcp_pkt / str_tcp_seg)
- timestamp_next_pkt = Util.update_timestamp(timestamp_next_pkt, pps) + float(time_steps.random())
- new_pkt.time = timestamp_next_pkt
- self.packets.append(new_pkt)
- exploit_raw_packets.close()
- def generate_attack_pcap(self):
- """
- Creates a pcap containing the attack packets.
- :return: The location of the generated pcap file.
- """
-
- self.attack_start_utime = self.packets[0].time
- self.attack_end_utime = self.packets[-1].time
- if len(self.packets) > 0:
- self.packets = sorted(self.packets, key=lambda pkt: pkt.time)
- self.path_attack_pcap = self.write_attack_pcap(self.packets, True, self.path_attack_pcap)
-
-
- return self.pkt_num + 1, self.path_attack_pcap
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