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ehdb
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ehdb
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#!/usr/bin/env python3
# Abandon all hope ye who enter here.
import sys
import json
from argparse import ArgumentParser
from settings import settings
def _parse_eap_user_line(line):
line = line.strip()
# skip lines that have been commented out
if line.startswith('#'):
return None
# skip blank lines
if line.split() == []:
return None
# if the username is a wildcard, we handle this separately. this has
# to go at the top of the file for the WPE functionality to work as
# intended. it's easier if we just rewrite this manually
if line[0] == '*':
return None
# locate quotes within line
quotes = []
for index,l in enumerate(line):
if l == '"':
quotes.append(index)
# odd number of quotes means unmatched quotes in line
if len(quotes) % 2 != 0:
print('[!] Unmatched quote found on line %d. Skipping.' % line_number)
return None
quotes_len = len(quotes)
# if 4 quotes, then quotes are being used around the
# eap identity and the password
if quotes_len == 4:
# if it's a phase 1 user, the last character of the
# line will be a double quote
if line[-1] == '"':
identity_start = quotes[0]+1
identity_end = quotes[1]
password_start = quotes[2]+1
password_end = quotes[3]
identity = line[identity_start: identity_end]
methods = line[identity_end+1: password_start-1].strip()
password = line[password_start: password_end]
password = line[password_start: password_end]
nt_hash = None
phase = 1
# if it's not a phase 1 user, it's a phase 2 user
else:
identity_start = quotes[0]+1
identity_end = quotes[1]
password_start = quotes[2]+1
password_end = quotes[3]
identity = line[identity_start: identity_end]
methods = line[identity_end+1: password_start-1].strip()
password = line[password_start: password_end]
nt_hash = None
phase = 2
# elif 2 quotes, the quotes are being used to surround
# the identity but not the nt password hash
elif quotes_len == 2:
# the only way a line will ever end with ] is if it's a phase 2 user
if line[-1] == ']':
line = line.replace('[2]', '')
identity_start = quotes[0]+1
identity_end = quotes[1]
identity = line[identity_start: identity_end]
remaining = line[identity_end+1:].split()
# phase 1 user with identity,methods,nt hash
if len(remaining) == 2:
methods = remaining[0].strip()
nt_hash = remaining[1].strip()
password = None
# phase 1 user with identity,methods
else:
methods = remaining[0].strip()
password = None
nt_hash = None
phase = 2
else:
identity_start = quotes[0]+1
identity_end = quotes[1]
identity = line[identity_start: identity_end]
remaining = line[identity_end+1:].split()
# phase 1 user with identity,methods,nt hash
if len(remaining) == 2:
methods = remaining[0].strip()
nt_hash = remaining[1].strip()
password = None
# phase 1 user with identity,methods
else:
methods = remaining[0].strip()
password = None
nt_hash = None
phase = 1
# hostapd's syntax rules dictate that at least
# the identity should be surrounded by quotes.
# therefore this should never happen since we've
# already skipped comments, wildcards, and blank lines.
else:
# this should never happen
sys.exit('[!] 2. Invalid eap_user file.')
eap_user = {
'identity' : identity,
'methods' : methods,
'password' : password,
'nt_hash' : nt_hash,
'phase' : phase,
}
return eap_user
def parse_eap_user_file():
master_set = set([])
phase1_users = []
phase2_users = []
with open(settings.dict['paths']['hostapd']['phase1_accounts']) as phase1_handle:
for line_number,line in enumerate(phase1_handle):
eap_user = _parse_eap_user_line(line)
if eap_user is None:
continue
if eap_user['identity'] in master_set:
print('[!] Duplicate entry detected... pruning from eap_user file.')
else:
master_set.add(eap_user['identity'])
# don't trust that the user account is in the correct file
if eap_user['phase'] == 1:
phase1_users.append(eap_user)
else:
phase2_users.append(eap_user)
with open(settings.dict['paths']['hostapd']['phase2_accounts']) as phase2_handle:
for line_number,line in enumerate(phase2_handle):
eap_user = _parse_eap_user_line(line)
if eap_user is None:
continue
if eap_user['identity'] in master_set:
print('[!] Duplicate entry detected... pruning from eap_user file.')
else:
master_set.add(eap_user['identity'])
# don't trust that the user account is in the correct file
if eap_user['phase'] == 1:
phase1_users.append(eap_user)
else:
phase2_users.append(eap_user)
return {
'phase1' : phase1_users,
'phase2' : phase2_users,
'master_set' : master_set,
}
def filter_users(users,
filtered=True,
phase=None,
identity_is=None,
in_identity=None,
methods_any=None,
methods_all=None,
has_password=False,
has_nt_hash=False,
invert=False):
matching_users = { 'phase1' : [], 'phase2' : [], 'master_set' : set([]) }
if not filtered or (phase is None) or phase == 1:
for user in users['phase1']:
identity_is_match = not filtered or (identity_is is None) or identity_is == user['identity']
in_identity_match = not filtered or (in_identity is None) or in_identity in user['identity']
method_match = not filtered or do_methods_match(user, methods_any, methods_all)
has_password_match = not filtered or (has_password == False) or (user['password'] is not None)
has_nt_hash_match = not filtered or (has_nt_hash == False) or (user['nt_hash'] is not None)
full_match = identity_is_match and in_identity_match and method_match and has_password_match and has_nt_hash_match
if full_match and invert:
continue
elif full_match and (not invert):
matching_users['phase1'].append(user)
matching_users['master_set'].add(user['identity'])
elif (not full_match) and invert:
matching_users['phase1'].append(user)
matching_users['master_set'].add(user['identity'])
elif (not full_match) and (not invert):
continue
if not filtered or (phase is None) or phase == 2:
for user in users['phase2']:
identity_is_match = not filtered or (identity_is is None) or identity_is == user['identity']
in_identity_match = not filtered or (in_identity is None) or in_identity in user['identity']
method_match = not filtered or do_methods_match(user, methods_any, methods_all)
has_password_match = not filtered or (has_password == False) or (user['password'] is not None)
has_nt_hash_match = not filtered or (has_nt_hash == False) or (user['nt_hash'] is not None)
full_match = identity_is_match and in_identity_match and method_match and has_password_match and has_nt_hash_match
if full_match and invert:
continue
elif full_match and (not invert):
matching_users['phase2'].append(user)
matching_users['master_set'].add(user['identity'])
elif (not full_match) and invert:
matching_users['phase2'].append(user)
matching_users['master_set'].add(user['identity'])
elif (not full_match) and (not invert):
continue
return matching_users
def do_methods_match(user, methods_any, methods_all):
user_methods = set(user['methods'].split(','))
if methods_any is None:
matches_any = True
else:
methods_any = set(methods_any.split(','))
intersection = user_methods.intersection(methods_any)
if len(intersection) > 0:
matches_any = True
else:
matches_any = False
if methods_all is None:
matches_all = True
else:
methods_all = set(methods_all.split(','))
if methods_all.issubset(user_methods):
matches_all = True
else:
matches_all = False
return matches_any and matches_all
def create_user_string(user):
user_string = [
'"%s"' % user['identity'],
user['methods'],
]
if user['password'] is not None:
user_string.append('"%s"' % user['password'])
elif user['nt_hash'] is not None:
user_string.append(user['nt_hash'])
if user['phase'] == 2:
user_string.append('[2]')
return '\t'.join(user_string)
def list_users(users,
filtered=True,
phase=None,
identity_is=None,
in_identity=None,
methods_any=None,
methods_all=None,
has_password=False,
has_nt_hash=False,
invert=False):
filtered_users = filter_users(
users,
filtered=filtered,
phase=phase,
identity_is=identity_is,
in_identity=in_identity,
methods_any=methods_any,
methods_all=methods_all,
has_password=has_password,
has_nt_hash=has_nt_hash,
invert=invert
)
print('Phase 1 users')
for user in filtered_users['phase1']:
print(create_user_string(user))
print()
print('Phase 2 users')
for user in filtered_users['phase2']:
print(create_user_string(user))
print()
def delete_users(users,
filtered=True,
phase=None,
identity_is=None,
in_identity=None,
methods_any=None,
methods_all=None,
has_password=False,
has_nt_hash=False,
invert=False):
return filter_users(
users,
filtered=filtered,
phase=phase,
identity_is=identity_is,
in_identity=in_identity,
methods_any=methods_any,
methods_all=methods_all,
has_password=has_password,
has_nt_hash=has_nt_hash,
invert=(not invert),
)
def add_user(users, identity, methods, phase, password=None, nt_hash=None):
eap_user = {
'identity' : identity,
'methods' : methods,
'password' : password,
'nt_hash' : nt_hash,
'phase' : phase,
}
if identity == 't':
print('[*] Updating existing entry.')
return users
if identity in users['master_set']:
print('[*] Updating existing entry.')
old_phase = 0
# get old phase and index
for index, user in enumerate(users['phase1']):
if identity == user['identity']:
old_phase = 1
old_phase_key = 'phase1'
new_phase_key = 'phase2'
break
if old_phase == 0:
for index, user in enumerate(users['phase2']):
if identity == user['identity']:
old_phase = 2
old_phase_key = 'phase2'
new_phase_key = 'phase1'
break
if users[old_phase_key][index]['identity'] != identity:
users[old_phase_key][index]['identity'] = identity
if users[old_phase_key][index]['methods'] != methods:
users[old_phase_key][index]['methods'] = methods
if users[old_phase_key][index]['password'] != password:
users[old_phase_key][index]['password'] = password
if users[old_phase_key][index]['nt_hash'] != nt_hash:
users[old_phase_key][index]['nt_hash'] = nt_hash
if old_phase != phase:
new_user = users[old_phase_key].pop(index)
new_user['phase'] = phase
users[new_phase_key].append(new_user)
return users
if phase == 1:
users['phase1'].append(eap_user)
users['master_set'].add(identity)
else:
users['phase2'].append(eap_user)
users['master_set'].add(identity)
return users
def write_users(users):
with open(settings.dict['paths']['hostapd']['phase1_accounts'], 'w') as output_handle:
output_handle.write('\n\n# Phase 1 users\n')
for user in users['phase1']:
output_handle.write('%s\n' % create_user_string(user))
with open(settings.dict['paths']['hostapd']['phase2_accounts'], 'w') as output_handle:
output_handle.write('\n\n# Phase 2 users\n')
for user in users['phase2']:
user_string = create_user_string(user)
output_handle.write('%s\n' % user_string)
def set_options():
parser = ArgumentParser()
# delete
# filter
add_user_group = parser.add_argument_group(
'add_user',
'Options for adding a user to eaphammer_db',
)
add_user_group.add_argument(
'--identity',
dest='identity',
type=str,
help='The username for the user you wish to add.',
)
add_user_group.add_argument(
'--methods',
dest='methods',
default=None,
required=False,
type=str,
help='Leave this as the default unless you really know what you are doing. '
'A comma seperated list of the authentication methods that should be used '
'when the user attempts to connect. EAPHammer will attempt to use each of '
'these methods one by one until the victim accepts one.',
)
add_user_group.add_argument(
'--phase',
dest='phase',
default=2,
required=False,
choices=[1, 2],
type=int,
help='You should probably leave this as the default.',
)
add_user_group.add_argument(
'--password',
dest='password',
required=False,
type=str,
help='Specify the user\'s password. You should probably specify a password for '
'your user unless you are specifying an nt password hash.',
)
add_user_group.add_argument(
'--nt-hash',
dest='nt_hash',
required=False,
type=str,
help='Specify the nt hash of the user\'s password. You should probably specify '
'the nt hash for your user unless you are specifying a password instead.',
)
filter_group = parser.add_argument_group(
'filters',
'Filter options for --list and --delete',
)
filter_group.add_argument(
'--by-phase',
dest='by_phase',
type=int,
choices=[1,2],
help='Filter by phase.',
)
filter_group.add_argument(
'--identity-is',
dest='identity_is',
type=str,
help='Filter by identity (exact match)',
)
filter_group.add_argument(
'--in-identity',
dest='in_identity',
type=str,
help='Filter for any identities containing a specified keyword',
)
filter_group.add_argument(
'--methods-any',
dest='methods_any',
type=str,
help='Filter for users that can authenticate using any of the '
'provided methods (comma separated list).',
)
filter_group.add_argument(
'--methods-all',
dest='methods_all',
type=str,
help='Filter for users that can authenticate using all of the '
'provided methods (comma separated list).',
)
filter_group.add_argument(
'--has-password',
dest='has_password',
action='store_true',
help='Filter for users that have a password in the database.',
)
filter_group.add_argument(
'--has-nt-hash',
dest='has_nt_hash',
action='store_true',
help='Filter for users that have a nt hash in the database.',
)
filter_group.add_argument(
'--invert',
dest='invert',
action='store_true',
help='Invert the results of the search.',
)
filter_group = parser.add_argument_group(
'delete',
'Options for --delete.',
)
filter_group.add_argument(
'--delete-all',
dest='delete_all',
action='store_true',
help='Delete everything in the database. Only works when '
'combined with --delete.',
)
modes_group = parser.add_mutually_exclusive_group()
modes_group.add_argument(
'--add',
dest='add_user',
action='store_true',
help='Add a user to the database.',
)
modes_group.add_argument(
'--delete',
dest='delete_user',
action='store_true',
help='Delete a user from the database.',
)
modes_group.add_argument(
'--list',
dest='list_users',
action='store_true',
help='List user from the database.',
)
args = parser.parse_args()
filtered = any([
args.by_phase is not None,
args.identity_is is not None,
args.in_identity is not None,
args.methods_any is not None,
args.methods_all is not None,
args.has_password == True,
args.has_nt_hash == True,
args.invert == True,
])
args = args.__dict__
args['filtered'] = filtered
if args['methods'] is None:
if args['phase'] == 1:
args['methods'] = 'PEAP,TTLS,TLS,FAST'
elif args['phase'] == 2:
args['methods'] = 'MSCHAPV2,TTLS-MSCHAPV2,TTLS,TTLS-CHAP,GTC,TTLS-PAP,TTLS-MSCHAP,MD5'
else:
raise Exception('error: wtf is this')
if args['add_user']:
if args['identity'] is None:
print('[!] Please specify an identity using the --identity flag.')
sys.exit()
elif args['delete_user']:
if args['filtered'] == False and args['delete_all'] == False:
print('[!] Cowardly refusing to delete everything in the '\
'database without additional confirmation')
print('[!] If this is really what you want to do, please use the following syntax:')
print('[!] root@localhost:~# ./ehdb --delete --delete-all')
sys.exit()
elif args['list_users']:
pass
else:
parser.print_help()
sys.exit()
return args
if __name__ == '__main__':
options = set_options()
users = parse_eap_user_file()
if options['add_user']:
users = add_user(
users,
options['identity'],
options['methods'],
options['phase'],
password=options['password'],
nt_hash=options['nt_hash'],
)
elif options['list_users']:
list_users(
users,
filtered=options['filtered'],
phase=options['by_phase'],
identity_is=options['identity_is'],
in_identity=options['in_identity'],
methods_any=options['methods_any'],
methods_all=options['methods_all'],
has_password=options['has_password'],
has_nt_hash=options['has_nt_hash'],
invert=options['invert'],
)
elif options['delete_user']:
users = delete_users(
users,
filtered=options['filtered'],
phase=options['by_phase'],
identity_is=options['identity_is'],
in_identity=options['in_identity'],
methods_any=options['methods_any'],
methods_all=options['methods_all'],
has_password=options['has_password'],
has_nt_hash=options['has_nt_hash'],
invert=options['invert'],
)
write_users(users)