Source code for google.cloud.forseti.scanner.scanners.service_account_key_scanner

# Copyright 2017 The Forseti Security Authors. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#    http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

"""Scanner for the Service Account Keys."""

from google.cloud.forseti.common.gcp_type.service_account import ServiceAccount
from google.cloud.forseti.common.util import logger
from google.cloud.forseti.scanner.audit import service_account_key_rules_engine
from google.cloud.forseti.scanner.scanners import base_scanner

LOGGER = logger.get_logger(__name__)


[docs]class ServiceAccountKeyScanner(base_scanner.BaseScanner): """Check if ServiceAccount Keys have not been rotated.""" def __init__(self, global_configs, scanner_configs, service_config, model_name, snapshot_timestamp, rules): """Initialization. Args: global_configs (dict): Global configurations. scanner_configs (dict): Scanner configurations. service_config (ServiceConfig): Forseti 2.0 service configs model_name (str): name of the data model snapshot_timestamp (str): Timestamp, formatted as YYYYMMDDTHHMMSSZ. rules (str): Fully-qualified path and filename of the rules file. """ super(ServiceAccountKeyScanner, self).__init__( global_configs, scanner_configs, service_config, model_name, snapshot_timestamp, rules) self.rules_engine = ( service_account_key_rules_engine.ServiceAccountKeyRulesEngine( rules_file_path=self.rules, snapshot_timestamp=self.snapshot_timestamp)) self.rules_engine.build_rule_book(self.global_configs)
[docs] @staticmethod def _flatten_violations(violations): """Flatten RuleViolations into a dict for each RuleViolation member. Args: violations (list): The RuleViolations to flatten. Yields: dict: Iterator of RuleViolations as a dict per member. """ for violation in violations: violation_data = { 'project_id': violation.project_id, 'service_account_name': violation.service_account_name, 'service_account_id': violation.resource_id, 'violation_reason': violation.violation_reason, 'key_id': violation.key_id, 'key_created_time': violation.key_created_time } yield { 'resource_id': violation.resource_id, 'resource_type': violation.resource_type, 'resource_name': violation.resource_name, 'full_name': violation.full_name, 'rule_index': violation.rule_index, 'rule_name': violation.rule_name, 'violation_type': violation.violation_type, 'violation_data': violation_data, 'resource_data': violation.resource_data }
[docs] def _output_results(self, all_violations): """Output results. Args: all_violations (list): All violations """ all_violations = list(self._flatten_violations(all_violations)) self._output_results_to_db(all_violations)
[docs] def _find_violations(self, service_accounts): """Find violations in the policies. Args: service_accounts (list): ServiceAccounts to find violations in. Returns: list: All violations. """ all_violations = [] LOGGER.info('Finding service account key age violations...') for service_account in service_accounts: violations = self.rules_engine.find_violations( service_account) LOGGER.debug(violations) all_violations.extend(violations) return all_violations
[docs] def _retrieve(self): """Runs the data collection. Returns: list: ServiceAccount objects """ model_manager = self.service_config.model_manager scoped_session, data_access = model_manager.get(self.model_name) with scoped_session as session: service_accounts = [] for service_account in data_access.scanner_iter( session, 'serviceaccount'): project_id = service_account.parent.name service_accounts.append( ServiceAccount.from_json(project_id, service_account.full_name, service_account.data, None)) # Retrieve the service account key via a separate query because # session in the middle of yield_per() can not support simultaneous # queries. for service_account in service_accounts: position = ( service_account.full_name.find('serviceaccount')) service_acc_type_name = ( service_account.full_name[position:][:-1]) keys = list(data_access.scanner_iter( session, 'serviceaccount_key', parent_type_name=service_acc_type_name)) service_account.keys = ServiceAccount.parse_json_keys(keys) return service_accounts
[docs] def run(self): """Run, the entry point for this scanner.""" service_accounts = self._retrieve() all_violations = self._find_violations(service_accounts) self._output_results(all_violations)