Ejemplo n.º 1
0
class SMBTransport(DCERPCTransport):
    """Implementation of ncacn_np protocol sequence"""

    def __init__(self, remoteName, dstport=445, filename='', username='', password='', domain='', lmhash='', nthash='',
                 aesKey='', TGT=None, TGS=None, remote_host='', smb_connection=0, doKerberos=False, kdcHost=None):
        DCERPCTransport.__init__(self, remoteName, dstport)
        self.__socket = None
        self.__tid = 0
        self.__filename = filename
        self.__handle = 0
        self.__pending_recv = 0
        self.set_credentials(username, password, domain, lmhash, nthash, aesKey, TGT, TGS)
        self._doKerberos = doKerberos
        self._kdcHost = kdcHost

        if remote_host != '':
            self.setRemoteHost(remote_host)

        if smb_connection == 0:
            self.__existing_smb = False
        else:
            self.__existing_smb = True
            self.set_credentials(*smb_connection.getCredentials())

        self.__prefDialect = None
        self.__smb_connection = smb_connection

    def preferred_dialect(self, dialect):
        self.__prefDialect = dialect

    def setup_smb_connection(self):
        if not self.__smb_connection:
            self.__smb_connection = SMBConnection(self.getRemoteName(), self.getRemoteHost(), sess_port=self.get_dport(),
                                                  preferredDialect=self.__prefDialect)
            if self._strict_hostname_validation:
                self.__smb_connection.setHostnameValidation(self._strict_hostname_validation, self._validation_allow_absent, self._accepted_hostname)

    def connect(self):
        # Check if we have a smb connection already setup
        if self.__smb_connection == 0:
            self.setup_smb_connection()
            if self._doKerberos is False:
                self.__smb_connection.login(self._username, self._password, self._domain, self._lmhash, self._nthash)
            else:
                self.__smb_connection.kerberosLogin(self._username, self._password, self._domain, self._lmhash,
                                                    self._nthash, self._aesKey, kdcHost=self._kdcHost, TGT=self._TGT,
                                                    TGS=self._TGS)
        self.__tid = self.__smb_connection.connectTree('IPC$')
        self.__handle = self.__smb_connection.openFile(self.__tid, self.__filename)
        self.__socket = self.__smb_connection.getSMBServer().get_socket()
        return 1

    def disconnect(self):
        self.__smb_connection.disconnectTree(self.__tid)
        # If we created the SMB connection, we close it, otherwise
        # that's up for the caller
        if self.__existing_smb is False:
            self.__smb_connection.logoff()
            self.__smb_connection.close()
            self.__smb_connection = 0

    def send(self,data, forceWriteAndx = 0, forceRecv = 0):
        if self._max_send_frag:
            offset = 0
            while 1:
                toSend = data[offset:offset+self._max_send_frag]
                if not toSend:
                    break
                self.__smb_connection.writeFile(self.__tid, self.__handle, toSend, offset = offset)
                offset += len(toSend)
        else:
            self.__smb_connection.writeFile(self.__tid, self.__handle, data)
        if forceRecv:
            self.__pending_recv += 1

    def recv(self, forceRecv = 0, count = 0 ):
        if self._max_send_frag or self.__pending_recv:
            # _max_send_frag is checked because it's the same condition we checked
            # to decide whether to use write_andx() or send_trans() in send() above.
            if self.__pending_recv:
                self.__pending_recv -= 1
            return self.__smb_connection.readFile(self.__tid, self.__handle, bytesToRead = self._max_recv_frag)
        else:
            return self.__smb_connection.readFile(self.__tid, self.__handle)

    def get_smb_connection(self):
        return self.__smb_connection

    def set_smb_connection(self, smb_connection):
        self.__smb_connection = smb_connection
        self.set_credentials(*smb_connection.getCredentials())
        self.__existing_smb = True

    def get_smb_server(self):
        # Raw Access to the SMBServer (whatever type it is)
        return self.__smb_connection.getSMBServer()

    def get_socket(self):
        return self.__socket

    def doesSupportNTLMv2(self):
        return self.__smb_connection.doesSupportNTLMv2()
Ejemplo n.º 2
0
class SMBTransport(DCERPCTransport):
    """Implementation of ncacn_np protocol sequence"""

    def __init__(self, dstip, dstport=445, filename='', username='', password='', domain='', lmhash='', nthash='',
                 aesKey='', TGT=None, TGS=None, remote_name='', smb_connection=0, doKerberos=False):
        DCERPCTransport.__init__(self, dstip, dstport)
        self.__socket = None
        self.__tid = 0
        self.__filename = filename
        self.__handle = 0
        self.__pending_recv = 0
        self.set_credentials(username, password, domain, lmhash, nthash, aesKey, TGT, TGS)
        self.__remote_name = remote_name
        self._doKerberos = doKerberos

        if smb_connection == 0:
            self.__existing_smb = False
        else:
            self.__existing_smb = True
            self.set_credentials(*smb_connection.getCredentials())

        self.__prefDialect = None

        if isinstance(smb_connection, smb.SMB):
            # Backward compatibility hack, let's return a
            # SMBBackwardCompatibilityTransport instance
            return SMBBackwardCompatibilityTransport(filename = filename, smb_server = smb_connection)
        else:
            self.__smb_connection = smb_connection

    def preferred_dialect(self, dialect):
        self.__prefDialect = dialect

    def setup_smb_connection(self):
        if not self.__smb_connection:
            if self.__remote_name == '':
                if self.get_dport() == nmb.NETBIOS_SESSION_PORT:
                    self.__smb_connection = SMBConnection('*SMBSERVER', self.get_dip(), sess_port = self.get_dport(),preferredDialect = self.__prefDialect)
                else:
                    self.__smb_connection = SMBConnection(self.get_dip(), self.get_dip(), sess_port = self.get_dport(),preferredDialect = self.__prefDialect)
            else:
                self.__smb_connection = SMBConnection(self.__remote_name, self.get_dip(), sess_port = self.get_dport(),preferredDialect = self.__prefDialect)

    def connect(self):
        # Check if we have a smb connection already setup
        if self.__smb_connection == 0:
           self.setup_smb_connection()
           if self._doKerberos is False:
               self.__smb_connection.login(self._username, self._password, self._domain, self._lmhash, self._nthash)
           else:
               self.__smb_connection.kerberosLogin(self._username, self._password, self._domain, self._lmhash, self._nthash, self._aesKey, TGT=self._TGT, TGS=self._TGS)
        self.__tid = self.__smb_connection.connectTree('IPC$')
        self.__handle = self.__smb_connection.openFile(self.__tid, self.__filename)
        self.__socket = self.__smb_connection.getSMBServer().get_socket()
        return 1

    def disconnect(self):
        self.__smb_connection.disconnectTree(self.__tid)
        # If we created the SMB connection, we close it, otherwise
        # that's up for the caller
        if self.__existing_smb is False:
            self.__smb_connection.logoff()
            self.__smb_connection = 0

    def send(self,data, forceWriteAndx = 0, forceRecv = 0):
        if self._max_send_frag:
            offset = 0
            while 1:
                toSend = data[offset:offset+self._max_send_frag]
                if not toSend:
                    break
                self.__smb_connection.writeFile(self.__tid, self.__handle, toSend, offset = offset)
                offset += len(toSend)
        else:
            self.__smb_connection.writeFile(self.__tid, self.__handle, data)
        if forceRecv:
            self.__pending_recv += 1

    def recv(self, forceRecv = 0, count = 0 ):
        if self._max_send_frag or self.__pending_recv:
            # _max_send_frag is checked because it's the same condition we checked
            # to decide whether to use write_andx() or send_trans() in send() above.
            if self.__pending_recv:
                self.__pending_recv -= 1
            return self.__smb_connection.readFile(self.__tid, self.__handle, bytesToRead = self._max_recv_frag)
        else:
            return self.__smb_connection.readFile(self.__tid, self.__handle)

    def get_smb_connection(self):
        return self.__smb_connection

    def set_smb_connection(self, smb_connection):
        self.__smb_connection = smb_connection
        self.set_credentials(*smb_connection.getCredentials())
        self.__existing_smb = True

    def get_smb_server(self):
        # Raw Access to the SMBServer (whatever type it is)
        return self.__smb_connection.getSMBServer()

    def get_socket(self):
        return self.__socket

    def doesSupportNTLMv2(self):
        return self.__smb_connection.doesSupportNTLMv2()
Ejemplo n.º 3
0
class SMBTransport(DCERPCTransport):
    """Implementation of ncacn_np protocol sequence"""

    def __init__(
        self,
        remoteName,
        dstport=445,
        filename="",
        username="",
        password="",
        domain="",
        lmhash="",
        nthash="",
        aesKey="",
        TGT=None,
        TGS=None,
        remote_host="",
        smb_connection=0,
        doKerberos=False,
        kdcHost=None,
    ):
        DCERPCTransport.__init__(self, remoteName, dstport)
        self.__socket = None
        self.__tid = 0
        self.__filename = filename
        self.__handle = 0
        self.__pending_recv = 0
        self.set_credentials(username, password, domain, lmhash, nthash, aesKey, TGT, TGS)
        self._doKerberos = doKerberos
        self._kdcHost = kdcHost

        if remote_host != "":
            self.setRemoteHost(remote_host)

        if smb_connection == 0:
            self.__existing_smb = False
        else:
            self.__existing_smb = True
            self.set_credentials(*smb_connection.getCredentials())

        self.__prefDialect = None
        self.__smb_connection = smb_connection

    def preferred_dialect(self, dialect):
        self.__prefDialect = dialect

    def setup_smb_connection(self):
        if not self.__smb_connection:
            self.__smb_connection = SMBConnection(
                self.getRemoteName(),
                self.getRemoteHost(),
                sess_port=self.get_dport(),
                preferredDialect=self.__prefDialect,
            )

    def connect(self):
        # Check if we have a smb connection already setup
        if self.__smb_connection == 0:
            self.setup_smb_connection()
            if self._doKerberos is False:
                self.__smb_connection.login(self._username, self._password, self._domain, self._lmhash, self._nthash)
            else:
                self.__smb_connection.kerberosLogin(
                    self._username,
                    self._password,
                    self._domain,
                    self._lmhash,
                    self._nthash,
                    self._aesKey,
                    kdcHost=self._kdcHost,
                    TGT=self._TGT,
                    TGS=self._TGS,
                )
        self.__tid = self.__smb_connection.connectTree("IPC$")
        self.__handle = self.__smb_connection.openFile(self.__tid, self.__filename)
        self.__socket = self.__smb_connection.getSMBServer().get_socket()
        return 1

    def disconnect(self):
        self.__smb_connection.disconnectTree(self.__tid)
        # If we created the SMB connection, we close it, otherwise
        # that's up for the caller
        if self.__existing_smb is False:
            self.__smb_connection.logoff()
            self.__smb_connection = 0

    def send(self, data, forceWriteAndx=0, forceRecv=0):
        if self._max_send_frag:
            offset = 0
            while 1:
                toSend = data[offset : offset + self._max_send_frag]
                if not toSend:
                    break
                self.__smb_connection.writeFile(self.__tid, self.__handle, toSend, offset=offset)
                offset += len(toSend)
        else:
            self.__smb_connection.writeFile(self.__tid, self.__handle, data)
        if forceRecv:
            self.__pending_recv += 1

    def recv(self, forceRecv=0, count=0):
        if self._max_send_frag or self.__pending_recv:
            # _max_send_frag is checked because it's the same condition we checked
            # to decide whether to use write_andx() or send_trans() in send() above.
            if self.__pending_recv:
                self.__pending_recv -= 1
            return self.__smb_connection.readFile(self.__tid, self.__handle, bytesToRead=self._max_recv_frag)
        else:
            return self.__smb_connection.readFile(self.__tid, self.__handle)

    def get_smb_connection(self):
        return self.__smb_connection

    def set_smb_connection(self, smb_connection):
        self.__smb_connection = smb_connection
        self.set_credentials(*smb_connection.getCredentials())
        self.__existing_smb = True

    def get_smb_server(self):
        # Raw Access to the SMBServer (whatever type it is)
        return self.__smb_connection.getSMBServer()

    def get_socket(self):
        return self.__socket

    def doesSupportNTLMv2(self):
        return self.__smb_connection.doesSupportNTLMv2()
Ejemplo n.º 4
0
class SMBShell(PsExec, Samr, SvcCtl):
    def __init__(self, target, credential, local_name):

        self.__dstip = target.get_host()
        self.__dstport = target.get_port()
        self.__user = credential.get_user()
        self.__password = credential.get_password()
        self.__lmhash = credential.get_lm_hash()
        self.__nthash = credential.get_nt_hash()
        self.__domain = credential.get_domain()
        self.__is_admin = credential.get_is_admin()
        self.__srcfile = local_name

        self.__destfile = '*SMBSERVER' if self.__dstport == 139 else self.__dstip
        self.__timeout = 5 * 60

        self.smb = None
        self.tid = None
        self.pwd = '\\'
        self.share = ''
        self.shares_list = []
        self.domains_dict = {}
        self.users_list = set()
        self.completion = []

        self.smbserver_share = ''.join(random.choice(string.ascii_uppercase) for _ in range(8))

        self.connect()
        logger.debug('Connection to host %s established' % target.get_identity())

        self.login()
        logger.debug(
            'Logged in as %s' % (self.__user if not self.__domain else '%s\%s' % (self.__domain, self.__user)))

        logger.info('Looking for a writable share, wait..')
        _ = self.get_writable_share()

        self.info(False)

        if _:
            DataStore.writable_share = _
        else:
            logger.warn('Unable to find a writable share. Going to use %s, but some commands will not work'
                        % DataStore.writable_share)

            if DataStore.version_major >= 6 or (DataStore.version_major == 5 and DataStore.version_minor == 1):
                DataStore.share_path = ntpath.join(DataStore.user_path, 'Windows', 'Temp')
            else:
                DataStore.share_path = ntpath.join(DataStore.user_path, 'WINNT', 'Temp')

    def connect(self):
        self.smb = SMBConnection(self.__destfile, self.__dstip, self.__srcfile, self.__dstport, self.__timeout)

    def login(self):
        try:
            self.smb.login(self.__user, self.__password, self.__domain, self.__lmhash, self.__nthash)
        except socket.error as e:
            logger.warn('Connection to host %s failed (%s)' % (self.__dstip, e))
            raise RuntimeError
        except SessionError as e:
            logger.error('SMB error: %s' % (e.getErrorString(),))
            raise RuntimeError

    def logoff(self):
        self.smb.logoff()

    def smb_transport(self, named_pipe):
        self.trans = transport.SMBTransport(remoteName=self.__dstip, dstport=self.__dstport, filename=named_pipe,
                                            smb_connection=self.smb, remote_host=self.__dstip)

        try:
            self.trans.connect()
        except socket.error as e:
            logger.warn('Connection to host %s failed (%s)' % (self.__dstip, e))
            raise RuntimeError
        except SessionError as e:
            logger.warn('SMB error: %s' % e.getErrorString())
            raise RuntimeError

    def info(self, display=True):
        self.smb_transport('srvsvc')
        self.__dce = self.trans.get_dce_rpc()
        self.__dce.bind(srvs.MSRPC_UUID_SRVS)

        try:
            self.__resp = srvs.hNetrServerGetInfo(self.__dce, 102)
        except rpcrt.DCERPCException as _:
            # traceback.print_exc()
            logger.warning('Unable to query server information')
            return None

        self.__dce.disconnect()

        DataStore.server_os = self.smb.getServerOS()
        DataStore.server_name = self.smb.getServerName()
        DataStore.server_domain = self.smb.getServerDomain()
        DataStore.server_host = self.smb.getRemoteHost()
        DataStore.user_path = self.__resp['InfoStruct']['ServerInfo102']['sv102_userpath']
        DataStore.version_major = self.__resp['InfoStruct']['ServerInfo102']['sv102_version_major']
        DataStore.version_minor = self.__resp['InfoStruct']['ServerInfo102']['sv102_version_minor']

        if display:
            print('Operating system: %s' % self.smb.getServerOS())
            print('Netbios name: %s' % self.smb.getServerName())
            print('Domain: %s' % self.smb.getServerDomain())
            print('SMB dialect: %s' % check_dialect(self.smb.getDialect()))
            print('NTLMv2 support: %s' % self.smb.doesSupportNTLMv2())
            print('UserPath: %s' % DataStore.user_path)
            print('Simultaneous users: %d' % self.__resp['InfoStruct']['ServerInfo102']['sv102_users'])
            print('Version major: %d' % DataStore.version_major)
            print('Version minor: %d' % DataStore.version_minor)
            print('Comment: %s' % self.__resp['InfoStruct']['ServerInfo102']['sv102_comment'] or '')

            # TODO: uncomment when SMBConnection will have a wrapper
            # getServerTime() method for both SMBv1,2,3
            # print 'Time: %s' % self.smb.get_server_time()

        return self.__resp

    def who(self):
        self.smb_transport('srvsvc')
        self.__dce = self.trans.get_dce_rpc()
        self.__dce.connect()
        self.__dce.bind(srvs.MSRPC_UUID_SRVS)
        resp = srvs.hNetrSessionEnum(self.__dce, NULL, NULL, 502)

        for session in resp['InfoStruct']['SessionInfo']['Level502']['Buffer']:
            print("Host: %15s, user: %5s, active: %5d, idle: %5d, type: %5s, transport: %s"
                  % (session['sesi502_cname'][:-1], session['sesi502_username'][:-1], session['sesi502_time'],
                     session['sesi502_idle_time'], session['sesi502_cltype_name'][:-1],
                     session['sesi502_transport'][:-1]))

        self.__dce.disconnect()

    def __share_info(self, share):
        self.smb_transport('srvsvc')
        self.__dce = self.trans.get_dce_rpc()
        self.__dce.connect()
        self.__dce.bind(srvs.MSRPC_UUID_SRVS)
        resp = srvs.hNetrShareGetInfo(self.__dce, '%s\x00' % share, 2)
        self.__dce.disconnect()

        return resp

    def check_share(self, share=None):
        # logger.debug("Into check_share with share: %s, self.share is: %s and self.tid is: %s"
        #              % (share, self.share, self.tid))

        if share:
            self.use(share)
        elif not share and (self.share is None or self.tid is None):
            logger.warn('Share has not been specified, select one')
            self.shares()

    def is_writable_share(self, share):
        _ = ''.join([random.choice(string.ascii_letters) for _ in range(8)])

        try:
            self.use(share, False)
            self.mkdir(_)
        except:
            pass
        else:
            self.rmdir(_)
            return True

        return False

    def get_writable_share(self):
        # Check we can write a directory on the shares, return the first writable one
        for _ in self.smb.listShares():
            share = _['shi1_netname'][:-1]

            try:
                share_info = self.__share_info(share)
            except rpcrt.DCERPCException as _:
                # traceback.print_exc()
                logger.warning('Unable to query share: %s' % share)
                continue

            path = share_info['InfoStruct']['ShareInfo2']['shi2_path'][:-1]

            if self.is_writable_share(share):
                logger.info('Share %s %sis writable' % (share, "(%s) " % path if path else ""))
                DataStore.share_path = path
                return share
            else:
                logger.debug('Share %s %sis not writable' % (share, "(%s) " % path if path else ""))

        return None

    def shares(self):
        shares = self.smb.listShares()
        count = 0

        for i in range(len(shares)):
            count += 1
            name = shares[i]['shi1_netname'][:-1]
            self.shares_list.append(name)

            comment = shares[i]['shi1_remark'][:-1]
            share_type = shares[i]['shi1_type']

            _ = self.__share_info(name)
            max_uses = _['InfoStruct']['ShareInfo2']['shi2_max_uses']  # 4294967295L is unlimited
            current_uses = _['InfoStruct']['ShareInfo2']['shi2_current_uses']
            permissions = _['InfoStruct']['ShareInfo2']['shi2_permissions']  # impacket always returns always 0
            path = _['InfoStruct']['ShareInfo2']['shi2_path']

            print('[%d] %s (comment: %s)' % (count, name, comment))

            print('\tPath: %s' % path)
            print('\tUses: %d (max: %s)' % (current_uses, 'unlimited' if max_uses == 4294967295 else max_uses))
            # print '\tType: %s' % share_type
            # print '\tPermissions: %d' % permissions

        msg = 'Which share do you want to connect to? (default: 1) '
        limit = len(self.shares_list)
        choice = read_input(msg, limit)

        self.use(self.shares_list[choice - 1])

    def use(self, share, display=True):
        if not share:
            raise missingShare('Share has not been specified')

        if self.tid:
            self.smb.disconnectTree(self.tid)

        try:
            self.share = share.strip('\x00')
            self.tid = self.smb.connectTree(self.share)
            self.pwd = '\\'
            self.ls('', False)
        except SessionError as e:
            if not display:
                pass
            elif e.getErrorCode() == nt_errors.STATUS_BAD_NETWORK_NAME:
                logger.warn('Invalid share name')
            elif e.getErrorCode() == nt_errors.STATUS_ACCESS_DENIED:
                logger.warn('Access denied')
            else:
                logger.warn('Unable to connect to share: %s' % (e.getErrorString(),))

    def cd(self, path):
        if not path:
            return

        self.check_share()
        path = ntpath.normpath(path)
        self.oldpwd = self.pwd

        if path == '.':
            return
        elif path == '..':
            sep = self.pwd.split('\\')
            self.pwd = '\\'.join('%s' % s for s in sep[:-1])
            return

        if path[0] == '\\':
            self.pwd = path
        else:
            self.pwd = ntpath.join(self.pwd, path)

        # Let's try to open the directory to see if it's valid
        try:
            fid = self.smb.openFile(self.tid, self.pwd)
            self.smb.closeFile(self.tid, fid)
            logger.warn('File is not a directory')
            self.pwd = self.oldpwd
        except SessionError as e:
            if e.getErrorCode() == nt_errors.STATUS_FILE_IS_A_DIRECTORY:
                return
            elif e.getErrorCode() == nt_errors.STATUS_ACCESS_DENIED:
                logger.warn('Access denied')
            elif e.getErrorCode() == nt_errors.STATUS_OBJECT_NAME_NOT_FOUND:
                logger.warn('File not found')
            else:
                logger.warn('Unable to change directory: %s' % (e.getErrorString(),))

            self.pwd = self.oldpwd

    def get_pwd(self):
        print(ntpath.join(self.share, self.pwd))

    def ls(self, path, display=True):
        self.check_share()

        if not path:
            pwd = ntpath.join(self.pwd, '*')
        else:
            pwd = ntpath.join(self.pwd, path)

        self.completion = []
        pwd = ntpath.normpath(pwd)

        try:
            files = self.smb.listPath(self.share, pwd)
        except SessionError as e:
            if not display:
                pass
            elif e.getErrorCode() in (nt_errors.STATUS_OBJECT_NAME_NOT_FOUND, nt_errors.STATUS_NO_SUCH_FILE):
                logger.warn('File not found')
            else:
                logger.warn('Unable to list files: %s' % (e.getErrorString(),))

            return

        for f in files:
            if display is True:
                print('%s %8s %10d %s' % (time.ctime(float(f.get_mtime_epoch())),
                                          '<DIR>' if f.is_directory() > 0 else '',
                                          f.get_filesize(), f.get_longname()))

            self.completion.append((f.get_longname(), f.is_directory(), f.get_filesize()))

    def lstree(self, path):
        self.check_share()

        if not path:
            path = ntpath.basename(self.pwd)
            self.cd('..')

        for x in range(0, path.count('\\')):
            print('|  ')

        print('%s' % os.path.basename(path.replace('\\', '/')))

        self.ls('%s\\*' % path, display=False)

        for identified_file, is_directory, size in self.completion:
            if identified_file in ('.', '..'):
                continue

            if is_directory > 0:
                self.lstree(ntpath.join(path, identified_file))
            else:
                for x in range(0, path.count('\\')):
                    print('|  ')

                print('|-- %s (%d bytes)' % (identified_file, size))

    def cat(self, filename):
        self.check_share()

        filename = os.path.basename(filename)
        self.ls(filename, display=False)

        for identified_file, is_directory, size in self.completion:
            if is_directory > 0:
                continue

            filepath = ntpath.join(self.pwd, identified_file)
            logger.debug('Reading file %s (%d bytes)..' % (filepath, size))

            try:
                self.fid = self.smb.openFile(self.tid, filepath)
            except SessionError as e:
                if e.getErrorCode() == nt_errors.STATUS_ACCESS_DENIED:
                    logger.warn('Access denied to %s' % identified_file)
                elif e.getErrorCode() == nt_errors.STATUS_SHARING_VIOLATION:
                    logger.warn('Access denied to %s due to share access flags' % identified_file)
                else:
                    logger.error('Unable to access file: %s' % (e.getErrorString(),))

                continue

            offset = 0

            while 1:
                try:
                    data = self.smb.readFile(self.tid, self.fid, offset)
                    data = data.decode("cp437")
                    print(data)
                    if len(data) == 0:
                        break

                    offset += len(data)
                except SessionError as e:
                    if e.getErrorCode() == nt_errors.STATUS_END_OF_FILE:
                        break
                    else:
                        logger.error('Unable to read file content: %s' % (e.getErrorString(),))

            self.smb.closeFile(self.tid, self.fid)

    def download(self, filename, path=None):
        self.check_share()

        basename = os.path.basename(filename)

        if path is None:
            path = '.'
        else:
            path = path.replace('\\', '/')

        self.ls(basename, display=False)

        for identified_file, is_directory, size in self.completion:
            if is_directory > 0:
                self.downloadtree(identified_file)
                self.cd('..')
                continue

            filepath = ntpath.join(self.pwd, identified_file)
            logger.debug('Downloading file %s (%d bytes)..' % (filepath, size))

            try:
                fh = open(os.path.join(path, identified_file), 'wb')
                self.smb.getFile(self.share, filepath, fh.write)
                fh.close()
            except SessionError as e:
                if e.getErrorCode() == nt_errors.STATUS_ACCESS_DENIED:
                    logger.warn('Access denied to %s' % identified_file)
                elif e.getErrorCode() == nt_errors.STATUS_SHARING_VIOLATION:
                    logger.warn('Access denied to %s due to share access flags' % identified_file)
                else:
                    logger.error('Unable to download file: %s' % (e.getErrorString(),))

    def downloadtree(self, path):
        self.check_share()

        if not path:
            path = ntpath.basename(self.pwd)
            self.cd('..')

        basename = ntpath.basename(path)
        normpath = path.replace('\\', '/')

        self.cd(basename)

        # Check if the provided path is not a directory (if so, then the
        # working directory has not changed
        if self.pwd == self.oldpwd:
            self.download(basename)
            return

        logger.debug('Recreating directory %s' % self.pwd)
        self.ls(None, display=False)

        if not os.path.exists(normpath):
            os.makedirs(normpath)

        for identified_file, is_directory, size in self.completion:
            if identified_file in ('.', '..'):
                continue

            if is_directory > 0:
                self.downloadtree(ntpath.join(path, identified_file))
                self.cd('..')
            else:
                self.download(identified_file, normpath)

    def upload(self, pathname, destfile=None):
        self.check_share()

        if isinstance(pathname, string_types):
            files = glob.glob(pathname)
        else:
            files = [pathname]

        for filename in files:
            try:
                if isinstance(filename, string_types):
                    fp = open(filename, 'rb')
                else:
                    fp = filename
            except IOError:
                logger.error('Unable to open file %s' % filename)
                return False

            if not destfile or len(files) > 1:
                destfile = os.path.basename(filename)

            destfile = ntpath.join(self.pwd, destfile)

            if isinstance(filename, string_types):
                logger.debug('Uploading file %s to %s..' % (filename, destfile))

            try:
                self.smb.putFile(self.share, destfile, fp.read)
            except SessionError as e:
                traceback.print_exc()
                if e.getErrorCode() == nt_errors.STATUS_ACCESS_DENIED:
                    logger.warn('Access denied to upload %s' % destfile)
                elif e.getErrorCode() == nt_errors.STATUS_SHARING_VIOLATION:
                    logger.warn('Access denied to upload %s due to share access flags' % destfile)
                else:
                    logger.error('Unable to upload file: %s' % (e.getErrorString(),))

            fp.close()

    def rename(self, srcfile, destfile):
        self.check_share()
        srcfile = ntpath.join(self.pwd, ntpath.normpath(srcfile))
        destfile = ntpath.join(self.pwd, ntpath.normpath(destfile))
        self.smb.rename(self.share, srcfile, destfile)

    def mkdir(self, path):
        self.check_share()
        path = ntpath.join(self.pwd, ntpath.normpath(path))
        self.smb.createDirectory(self.share, path)

    def rm(self, filename):
        self.check_share()

        filename = ntpath.join(self.pwd, ntpath.normpath(filename))
        self.ls(filename, display=False)

        for identified_file, is_directory, size in self.completion:
            if is_directory > 0:
                continue

            filepath = ntpath.join(self.pwd, identified_file)
            logger.debug('Removing file %s (%d bytes)..' % (filepath, size))

            try:
                self.smb.deleteFile(self.share, filepath)
            except SessionError as e:
                if e.getErrorCode() == nt_errors.STATUS_ACCESS_DENIED:
                    logger.warn('Access denied to %s' % identified_file)
                elif e.getErrorCode() == nt_errors.STATUS_SHARING_VIOLATION:
                    logger.warn('Access denied to %s due to share access flags' % identified_file)
                else:
                    logger.error('Unable to remove file: %s' % (e.getErrorString(),))

    def rmdir(self, path):
        self.check_share()

        path = ntpath.join(self.pwd, ntpath.normpath(path))
        self.ls(path, display=False)

        for identified_file, is_directory, _ in self.completion:
            if is_directory <= 0:
                continue

            filepath = ntpath.join(self.pwd, identified_file)
            logger.debug('Removing directory %s..' % filepath)

            try:
                self.smb.deleteDirectory(self.share, filepath)
            except SessionError as e:
                if e.getErrorCode() == nt_errors.STATUS_ACCESS_DENIED:
                    logger.warn('Access denied to %s' % identified_file)
                elif e.getErrorCode() == nt_errors.STATUS_SHARING_VIOLATION:
                    logger.warn('Access denied to %s due to share access flags' % identified_file)
                else:
                    logger.error('Unable to remove directory: %s' % (e.getErrorString(),))

    def bindshell(self, port):
        connected = False
        srvname = ''.join([random.choice(string.ascii_letters) for _ in range(8)])
        local_file = os.path.join(keimpx_path, 'contrib', 'srv_bindshell.exe')
        remote_file = '%s.exe' % ''.join([random.choice(string.ascii_lowercase) for _ in range(8)])

        if not os.path.exists(local_file):
            raise missingFile('srv_bindshell.exe not found in the contrib subfolder')

        logger.info('Launching interactive OS shell')
        logger.debug('Going to use temporary service %s' % srvname)

        if not port:
            port = 4445
        elif not isinstance(port, int):
            port = int(port)

        self.deploy(srvname, local_file, port, remote_file)

        logger.info('Connecting to backdoor on port %d, wait..' % port)

        for counter in range(0, 3):
            try:
                time.sleep(1)

                if str(sys.version.split()[0]) >= '2.6':
                    tn = Telnet(self.__dstip, port, 3)
                else:
                    tn = Telnet(self.__dstip, port)

                connected = True
                tn.interact()
            except (socket.error, socket.herror, socket.gaierror, socket.timeout) as e:
                if connected is False:
                    warn_msg = 'Connection to backdoor on port %d failed (%s)' % (port, e)

                    if counter < 2:
                        warn_msg += ', retrying..'
                        logger.warn(warn_msg)
                    else:
                        logger.error(warn_msg)
            except SessionError as e:
                # traceback.print_exc()
                logger.error('SMB error: %s' % (e.getErrorString(),))
            except KeyboardInterrupt as _:
                print()
                logger.info('User aborted')
            except Exception as e:
                # traceback.print_exc()
                logger.error(str(e))

            if connected is True:
                tn.close()
                sys.stdout.flush()
                break

        time.sleep(1)
        self.undeploy(srvname)

    def getSecretsDumper(self, history):
        dumper = DumpSecrets(remoteName=self.__destfile, remoteHost=self.__dstip, username=self.__user,
                             password=self.__password, domain=self.__domain, lmhash=self.__lmhash,
                             nthash=self.__nthash, history=history, ds=DataStore)
        return dumper

    def getAtExec(self, command):
        if DataStore.version_major > 6:
            atexec = TSCH_EXEC(self.__destfile if self.__destfile is not None else self.__dstip, username=self.__user,
                               password=self.__password, domain=self.__domain, lmhash=self.__lmhash,
                               nthash=self.__nthash, command=command)
            return atexec
        else:
            logger.warn("This command only works on Windows Vista or newer.")
            return None

    def getRpcDump(self):
        dumper = RPCDump(self.__destfile if self.__destfile is not None else self.__dstip, remoteHost=self.__dstip,
                         username=self.__user, password=self.__password, domain=self.__domain,
                         lmhash=self.__lmhash, nthash=self.__nthash)
        return dumper
Ejemplo n.º 5
0
class SMBTransport(DCERPCTransport):
    """Implementation of ncacn_np protocol sequence"""

    def __init__(self, target, credential = SMBCredential(), filename='', smb_connection=None):
        DCERPCTransport.__init__(self, target)
        self.__socket = None
        self.__tid = 0
        self.__filename = filename
        self.__handle = 0
        self.__pending_recv = 0
        self.__credential = credential
        self.set_credentials(credential)

        if target.hostname is not None:
            self.setRemoteHost(target.hostname)

        if smb_connection is None:
            self.__existing_smb = False
        else:
            self.__existing_smb = True
            self.set_credentials(smb_connection.getCredentials())

        self.__prefDialect = None
        self.__smb_connection = smb_connection

    def preferred_dialect(self, dialect):
        self.__prefDialect = dialect

    def setup_smb_connection(self):
        if not self.__smb_connection:
            self.__smb_connection = SMBConnection(self.getRemoteName(), self.getRemoteHost(), sess_port=self.get_dport(),
                                                  preferredDialect=self.__prefDialect)

    def connect(self):
        # Check if we have a smb connection already setup
        if self.__smb_connection is None:
            self.setup_smb_connection()
            if self._doKerberos is False:
                self.__smb_connection.login(self.__credential)
            else:
                self.__smb_connection.kerberos_login(self.__credential)
        self.__tid = self.__smb_connection.connectTree('IPC$')
        self.__handle = self.__smb_connection.openFile(self.__tid, self.__filename)
        self.__socket = self.__smb_connection.getSMBServer().get_socket()
        return 1

    def disconnect(self):
        self.__smb_connection.disconnectTree(self.__tid)
        # If we created the SMB connection, we close it, otherwise
        # that's up for the caller
        if self.__existing_smb is False:
            self.__smb_connection.logoff()
            self.__smb_connection.close()
            self.__smb_connection = None

    def send(self,data, forceWriteAndx = 0, forceRecv = 0):
        if self._max_send_frag:
            offset = 0
            while 1:
                toSend = data[offset:offset+self._max_send_frag]
                if not toSend:
                    break
                self.__smb_connection.writeFile(self.__tid, self.__handle, toSend, offset = offset)
                offset += len(toSend)
        else:
            self.__smb_connection.writeFile(self.__tid, self.__handle, data)
        if forceRecv:
            self.__pending_recv += 1

    def recv(self, forceRecv = 0, count = 0 ):
        if self._max_send_frag or self.__pending_recv:
            # _max_send_frag is checked because it's the same condition we checked
            # to decide whether to use write_andx() or send_trans() in send() above.
            if self.__pending_recv:
                self.__pending_recv -= 1
            return self.__smb_connection.readFile(self.__tid, self.__handle, bytesToRead = self._max_recv_frag)
        else:
            return self.__smb_connection.readFile(self.__tid, self.__handle)

    def get_smb_connection(self):
        return self.__smb_connection

    def set_smb_connection(self, smb_connection):
        self.__smb_connection = smb_connection
        self.set_credentials(smb_connection.getCredentials())
        self.__existing_smb = True

    def get_smb_server(self):
        # Raw Access to the SMBServer (whatever type it is)
        return self.__smb_connection.getSMBServer()

    def get_socket(self):
        return self.__socket

    def doesSupportNTLMv2(self):
        return self.__smb_connection.doesSupportNTLMv2()