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Rewrote --crack behavior; supports multiple handshakes at once.
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@derv82
derv82 committed Aug 18, 2018
1 parent 0977f48 commit c4ed911
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Showing 4 changed files with 201 additions and 125 deletions.
26 changes: 17 additions & 9 deletions wifite/attack/wpa.py
View file
Original file line number Diff line number Diff line change
Expand Up @@ -149,7 +149,8 @@ def capture_handshake(self):
self.save_handshake(handshake)
return handshake

def crack_handshake(self, handshake, wordlist):
@staticmethod
def crack_handshake(handshake, wordlist, verbose=False):
'''Tries to crack a handshake. Returns WPA key if found, otherwise None.'''
if wordlist is None:
Color.pl('{!} {O}Not cracking handshake because' +
Expand All @@ -160,8 +161,9 @@ def crack_handshake(self, handshake, wordlist):
' wordlist {R}%s{O} was not found' % wordlist)
return None

Color.pl('\n{+} {C}Cracking WPA Handshake:{W} Using {C}aircrack-ng{W} via' +
' {C}%s{W} wordlist' % os.path.split(wordlist)[-1])
if not verbose:
Color.pl('\n{+} {C}Cracking WPA Handshake:{W} Using {C}aircrack-ng{W} via' +
' {C}%s{W} wordlist' % os.path.split(wordlist)[-1])

key_file = Configuration.temp('wpakey.txt')
command = [
Expand All @@ -172,6 +174,8 @@ def crack_handshake(self, handshake, wordlist):
'-l', key_file,
handshake.capfile
]
if verbose:
Color.pl('{+} {D}Running: {W}{P}%s{W}' % ' '.join(command))
crack_proc = Process(command)

# Report progress of cracking
Expand Down Expand Up @@ -202,21 +206,25 @@ def crack_handshake(self, handshake, wordlist):
status += ' @ {C}%0.1fkps{W}' % num_kps
#status += ' ({C}%d{W}/{C}%d{W} keys)' % (num_tried, num_total)
status += ' (current key: {C}%s{W})' % current_key
Color.clear_entire_line()
Color.p(status)
if not verbose:
Color.clear_entire_line()
Color.p(status)

if not verbose:
Color.pl('')

Color.pl('')
# Check crack result
if os.path.exists(key_file):
with open(key_file, 'r') as fid:
key = fid.read().strip()
os.remove(key_file)

Color.pl('{+} {G}Cracked WPA Handshake{W} PSK: {G}%s{W}\n' % key)
if not verbose:
Color.pl('{+} {G}Cracked WPA Handshake{W} PSK: {G}%s{W}\n' % key)
return key
else:
Color.pl('{!} {R}Failed to crack handshake:' +
' {O}%s{R} did not contain password{W}' % wordlist.split(os.sep)[-1])
if not verbose:
Color.pl('{!} {R}Failed to crack handshake: {O}%s{R} did not contain password{W}' % wordlist.split(os.sep)[-1])
return None

def load_handshake(self, bssid, essid):
Expand Down
4 changes: 3 additions & 1 deletion wifite/tools/hashcat.py
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Original file line number Diff line number Diff line change
Expand Up @@ -15,7 +15,7 @@ class Hashcat(Dependency):
dependency_url = 'https://hashcat.net/hashcat/'

@staticmethod
def crack_pmkid(pmkid_file):
def crack_pmkid(pmkid_file, verbose=False):
'''
Cracks a given pmkid_file using the PMKID/WPA2 attack (-m 16800)
Returns:
Expand All @@ -36,6 +36,8 @@ def crack_pmkid(pmkid_file):
Configuration.wordlist
]
command.extend(additional_arg)
if verbose and additional_arg == []:
Color.pl('{+} {D}Running: {W}{P}%s{W}' % ' '.join(command))

# TODO: Check status of hashcat (%); it's impossible with --quiet

Expand Down
292 changes: 179 additions & 113 deletions wifite/util/crack.py
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Original file line number Diff line number Diff line change
Expand Up @@ -5,139 +5,205 @@
from ..util.color import Color
from ..util.input import raw_input
from ..config import Configuration
from ..model.result import CrackResult

from datetime import datetime

import os


class CrackHandshake(object):
def __init__(self):
self.wordlist = Configuration.wordlist or 'path_to_wordlist_here'
if os.path.exists(self.wordlist):
self.wordlist = os.path.abspath(self.wordlist)

handshake = self.choose_handshake()
self.crack_handshake(handshake)

def crack_handshake(self, handshake):
cap_file = handshake['handshake_file']
bssid = handshake['bssid']
Color.pl('\n Below are commands to crack the handshake {C}%s{W}:' % cap_file)
self.print_aircrack(cap_file, bssid)
self.print_pyrit(cap_file, bssid)
self.print_john(cap_file)
self.print_oclhashcat(cap_file)
# TODO: cowpatty
Color.pl('')

def print_aircrack(self, cap_file, bssid):
Color.pl('')
if not Process.exists('aircrack-ng'):
Color.pl(' {R}aircrack-ng not found.');
Color.pl(' {O}More info on installing {R}Aircrack{O} here: {C}https://www.aircrack-ng.org/downloads.html{W}');
return
Color.pl(' {O}# AIRCRACK: CPU-based cracking. Slow.')
Color.pl(' {G}aircrack-ng {W}-a {C}2 {W}-b {C}%s {W}-w {C}%s %s{W}' % (bssid, self.wordlist, cap_file))

def print_pyrit(self, cap_file, bssid):
Color.pl('')
if not Process.exists('pyrit'):
Color.pl(' {R}pyrit not found.');
Color.pl(' {O}More info on installing {R}Pyrit{O} here: {C}https://github.com/JPaulMora/Pyrit{W}');
return
Color.pl(' {O}# PYRIT: GPU-based cracking. Fast.')
Color.pl(' {G}pyrit {W}-b {C}%s {W}-i {C}%s {W}-r {C}%s {W}attack_passthrough{W}' % (bssid, self.wordlist, cap_file))

def print_john(self, cap_file):
Color.pl('')
Color.pl(' {O}# JOHN: CPU or GPU-based cracking. Fast.')
if not Process.exists('john'):
Color.pl(' {O}# {R}john{O} is not installed. More info on installing {R}John The Ripper{O} here: {C}http://www.openwall.com/john/{W}');
else:
Color.pl(' {O}# Use --format=wpapsk-cuda (or wpapsk-opengl) to enable GPU acceleration')
Color.pl(' {O}# See http://openwall.info/wiki/john/WPA-PSK for more info on this process')
Color.pl(' {O}# Generate hccap file:')
Color.pl(' {G}aircrack-ng {W}-J hccap {C}%s{W}' % cap_file)
Color.pl(' {O}# Convert hccap file to john file:')
Color.pl(' {G}hccap2john {C}hccap.hccap {W}> {C}%s.john{W}' % cap_file)
Color.pl(' {O}# Crack john file:')
Color.pl(' {G}john {W}--wordlist {C}"%s" {W}--format=wpapsk {C}"%s.john"{W}' % (self.wordlist, cap_file))

def print_oclhashcat(self, cap_file):
Color.pl('')
if not Process.exists('hashcat'):
Color.pl(' {R}hashcat {O}not found.');
Color.pl(' {O}More info on installing {R}hashcat{O} here: {C}https://hashcat.net/hashcat/');
return
Color.pl(' {O}# HASHCAT: GPU-based cracking. Fast.')
Color.pl(' {O}# See {C}https://hashcat.net/wiki/doku.php?id=cracking_wpawpa2 {O}for more info')
Color.pl(' {O}# Step 1: Generate .hccapx file')

hccapx_file = '/tmp/generated.hccapx'
cap2hccapx = '/usr/lib/hashcat-utils/cap2hccapx.bin'
if os.path.exists(cap2hccapx):
Color.pl(' {G} %s {W}%s {C}%s{W}' % (cap2hccapx, cap_file, hccapx_file))
else:
Color.pl(' {O}# Install {R}cap2hccapx{O}: {C}https://hashcat.net/wiki/doku.php?id=hashcat_utils')
Color.pl(' {G}./cap2hccapx.bin {W}%s {C}%s{W}' % (cap_file, hccapx_file))
Color.pl(' {O}# OR visit https://hashcat.net/cap2hccapx to generate a .hccapx file{W}')
Color.pl(' {O}# Then click BROWSE -> %s -> CONVERT and save to %s' % (cap_file, hccapx_file))
# TODO: Bring back the 'print' option, for easy copy/pasting.
# Just one-liners people can paste into terminal.

Color.pl(' {O}# Step 2: Crack the .hccapx file')
Color.pl(' {G}hashcat {W}-m 2500 {C}%s %s{W}' % (hccapx_file, self.wordlist))
class CrackHelper:
'''Manages handshake retrieval, selection, and running the cracking commands.'''

def choose_handshake(self):
hs_dir = Configuration.wpa_handshake_dir
Color.pl('{+} Listing captured handshakes from {C}%s{W}\n' % os.path.realpath(hs_dir))
TYPES = {
'4-WAY': 'WPA 4-Way Handshake',
'PMKID': 'WPA PKID Hash'
}


@classmethod
def run(cls):
Configuration.initialize(False)

if not Configuration.wordlist:
Color.p('\n{+} Enter wordlist file to use for cracking: {G}')
Configuration.wordlist = raw_input()
if not os.path.exists(Configuration.wordlist):
Color.pl('{!} {R}Wordlist {O}%s{R} not found. Exiting.' % Configuration.wordlist)
return
Color.pl('')

handshakes = cls.get_handshakes()
hs_to_crack = cls.get_user_selection(handshakes)

# TODO: Ask what method to use for WPA (aircrack, pyrit, john, hashcat, cowpatty)

for hs in hs_to_crack:
cls.crack(hs)

@classmethod
def get_handshakes(cls):
handshakes = []

skipped_pmkid_files = 0

hs_dir = Configuration.wpa_handshake_dir
Color.pl('\n{+} Listing captured handshakes from {C}%s{W} ...\n' % os.path.abspath(hs_dir))
for hs_file in os.listdir(hs_dir):
if not hs_file.endswith('.cap') or hs_file.count('_') != 3:
if hs_file.count('_') != 3:
continue

if hs_file.endswith('.cap'):
# WPA Handshake
hs_type = '4-WAY'
elif hs_file.endswith('.16800'):
# PMKID hash
if not Process.exists('hashcat'):
skipped_pmkid_files += 1
continue
hs_type = 'PMKID'
else:
continue

name, essid, bssid, date = hs_file.split('_')
date = date.rsplit('.', 1)[0]
days,hours = date.split('T')
hours = hours.replace('-', ':')
date = '%s %s' % (days, hours)

if name != 'handshake':
handshake = {
'filename': os.path.join(hs_dir, hs_file),
'bssid': bssid.replace('-', ':'),
'essid': essid,
'date': date,
'type': hs_type
}

if hs_file.endswith('.cap'):
# WPA Handshake
handshake['type'] = '4-WAY'
elif hs_file.endswith('.16800'):
# PMKID hash
handshake['type'] = 'PMKID'
else:
continue

handshakes.append({
'essid': essid,
'bssid': bssid.replace('-', ':'),
'date': date.replace('.cap', '').replace('T', ' '),
'handshake_file': os.path.realpath(os.path.join(hs_dir, hs_file))
})
handshakes.append(handshake)

if skipped_pmkid_files > 0:
Color.pl('{!} {O}Skipping %d {R}*.16800{O} files because {R}hashcat{O} is missing.' % skipped_pmkid_files)

handshakes.sort(key=lambda x: x['date'], reverse=True)
# Sort by Date (Descending)
return sorted(handshakes, key=lambda x: x.get('date'), reverse=True)

if len(handshakes) == 0:
raise Exception('No handshakes found in %s' % os.path.realpath(hs_dir))

# Handshakes Header
max_essid_len = max(max([len(hs['essid']) for hs in handshakes]), len('(truncated) ESSDID'))
Color.p(' NUM')
Color.p(' ' + 'ESSID (truncated)'.ljust(max_essid_len))
Color.p(' ' + 'BSSID'.ljust(17))
@classmethod
def print_handshakes(cls, handshakes):
# Header
max_essid_len = max(max([len(hs['essid']) for hs in handshakes]), len('ESSID (truncated)'))
Color.p('{D} NUM')
Color.p(' ESSID (truncated)'.ljust(max_essid_len))
Color.p(' BSSID'.ljust(19))
Color.p(' TYPE'.ljust(7))
Color.p(' DATE CAPTURED\n')
Color.p(' ---')
Color.p(' ' + ('-' * max_essid_len))
Color.p(' ' + ('-' * 17))
Color.p(' ' + ('-' * 19) + '\n')
# Print all handshakes
for idx, hs in enumerate(handshakes, start=1):
bssid = hs['bssid']
essid = hs['essid']
date = hs['date']
Color.p(' {G}%s{W}' % str(idx).rjust(3))
Color.p(' {C}%s{W}' % essid.ljust(max_essid_len))
Color.p(' {O}%s{W}' % bssid)
Color.p(' {W}%s{W}\n' % date)
# Get number from user
hs_index = raw_input(Color.s('\n{+} Select handshake num to crack ({G}1-%d{W}): ' % len(handshakes)))
if not hs_index.isdigit():
raise ValueError('Handshake NUM must be numeric, got (%s)' % hs_index)
hs_index = int(hs_index)
if hs_index < 1 or hs_index > len(handshakes):
raise Exception('Handshake NUM must be between 1 and %d' % len(handshakes))

return handshakes[hs_index - 1]
Color.p(' ' + ('-' * 6))
Color.p(' ' + ('-' * 19) + '{W}\n')
# Handshakes
for index, handshake in enumerate(handshakes, start=1):
bssid = handshake['bssid']
date = handshake['date']
Color.p(' {G}%s{W}' % str(index).rjust(3))
Color.p(' {C}%s{W}' % handshake['essid'].ljust(max_essid_len))
Color.p(' {O}%s{W}' % handshake['bssid'].ljust(17))
Color.p(' {C}%s{W}' % handshake['type'].ljust(5))
Color.p(' {W}%s{W}\n' % handshake['date'])


@classmethod
def get_user_selection(cls, handshakes):
cls.print_handshakes(handshakes)

Color.p('{+} Select handshake(s) to crack ({G}%d{W}-{G}%d{W}, select multiple with {C},{W} or {C}-{W}): {G}' % (1, len(handshakes)))
choices = raw_input()

selection = []
for choice in choices.split(','):
if '-' in choice:
first, last = [int(x) for x in choice.split('-')]
for index in range(first, last + 1):
selection.append(handshakes[index-1])
else:
index = int(choice)
selection.append(handshakes[index-1])

return selection


@classmethod
def crack(cls, hs):
Color.pl('\n{+} Cracking {C}%s{W} ({C}%s{W}) using {G}%s{W} method' % (hs['essid'], hs['bssid'], hs['type']))
if hs['type'] == 'PMKID':
crack_result = cls.crack_pmkid(hs)
elif hs['type'] == '4-WAY':
crack_result = cls.crack_4way(hs)
else:
raise ValueError('Cannot crack handshake: Type is not PMKID or 4-WAY. Handshake=%s' % hs)

if crack_result is None:
# Failed to crack
Color.pl('{!} {R}Failed to crack {O}%s{R} ({O}%s{R}): Passphrase not in dictionary' % (
hs['essid'], hs['bssid']))
else:
# Cracked, replace existing entry (if any), or add to
Color.pl('{+} {G}Cracked{W} {C}%s{W} ({C}%s{W}). Key: "{G}%s{W}"' % (
hs['essid'], hs['bssid'], crack_result.key))
crack_result.save()


@classmethod
def crack_4way(cls, hs):
from ..attack.wpa import AttackWPA
from ..model.handshake import Handshake
from ..model.wpa_result import CrackResultWPA

handshake = Handshake(hs['filename'],
bssid=hs['bssid'],
essid=hs['essid'])

key = None
try:
key = AttackWPA.crack_handshake(handshake, Configuration.wordlist, verbose=True)
except KeyboardInterrupt:
Color.pl('\n{!} Interrupted')

if key is not None:
return CrackResultWPA(hs['bssid'], hs['essid'], hs['filename'], key)
else:
return None


@classmethod
def crack_pmkid(cls, hs):
from ..tools.hashcat import Hashcat
from ..model.pmkid_result import CrackResultPMKID

key = None
try:
key = Hashcat.crack_pmkid(hs['filename'], verbose=True)
except KeyboardInterrupt:
Color.pl('\n{!} Interrupted')

if key is not None:
return CrackResultPMKID(hs['bssid'], hs['essid'], hs['filename'], key)
else:
return None


if __name__ == '__main__':
CrackHelper.run()

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