def test_sqs_config_translate(test):
# we're using a cwe event as a config, so have to mangle to
# config's inane format (json strings in json)
event = event_data('sqs-discover.json')
p = test.load_policy({
'name': 'sqs-check',
'resource': 'aws.sqs',
'mode': {
'type': 'config-rule'
}
})
config = p.resource_manager.get_source('config')
resource = config.load_resource(event['detail']['configurationItem'])
Arn.parse(resource['QueueArn']).resource == 'config-changes'
assert resource == {
'CreatedTimestamp': '1602023249',
'DelaySeconds': '0',
'LastModifiedTimestamp': '1602023249',
'MaximumMessageSize': '262144',
'MessageRetentionPeriod': '345600',
'Policy':
'{"Version":"2012-10-17","Statement":[{"Sid":"","Effect":"Allow","Principal":{"Service":"events.amazonaws.com"},"Action":"sqs:SendMessage","Resource":"arn:aws:sqs:us-east-1:644160558196:config-changes"}]}', # noqa
'QueueArn': 'arn:aws:sqs:us-east-1:644160558196:config-changes',
'QueueUrl':
'https://sqs.us-east-1.amazonaws.com/644160558196/config-changes',
'ReceiveMessageWaitTimeSeconds': '0',
'VisibilityTimeout': '30',
}
def process(self, resources, event=None):
filters = []
for f in self.data.get('eval_filters', ()):
vf = ValueFilter(f)
vf.annotate = False
filters.append(vf)
resource_model = self.manager.get_model()
resource_map = self.get_resource_map(filters, resource_model,
resources)
# Avoid static/import time dep on boto in filters package
from c7n.resources.aws import Arn
results = []
for arn, r in zip(self.manager.get_arns(resources), resources):
# many aws provided rules are inconsistent in their
# treatment of resource ids, some use arns, some use names
# as identifiers for the same resource type. security
# hub in particular is bad at consistency.
rid = None
if arn in resource_map:
rid = arn
elif r[resource_model.id] in resource_map:
rid = r[resource_model.id]
if arn == r[resource_model.id] and not rid:
rid = Arn.parse(arn).resource
if rid not in resource_map:
rid = None
if rid is None:
continue
r[self.annotation_key] = resource_map[rid]
results.append(r)
return results
def get_resource_arns(self, event):
event_type = event['detail-type']
arn_resolver = getattr(self, self.handlers[event_type])
arns = arn_resolver(event)
# Lazy import to avoid aws sdk runtime dep in core
from c7n.resources.aws import Arn
return {Arn.parse(r) for r in arns}
def resolve_resources(self, event):
# For centralized setups in a hub aggregator account
self.assume_member(event)
event_type = event['detail-type']
arn_resolver = getattr(self, self.handlers[event_type])
arns = arn_resolver(event)
# Lazy import to avoid aws sdk runtime dep in core
from c7n.resources.aws import Arn
resource_map = {Arn.parse(r) for r in arns}
# sanity check on finding resources matching policy resource
# type's service.
if self.policy.resource_manager.type != 'account':
log.info("mode:security-hub resolve resources %s",
list(resource_map))
if not resource_map:
return []
resource_arns = [
r for r in resource_map if r.service ==
self.policy.resource_manager.resource_type.service
]
resources = self.policy.resource_manager.get_resources(
[r.resource for r in resource_arns])
else:
resources = self.policy.resource_manager.get_resources([])
resources[0]['resource-arns'] = resource_arns
return resources
def get_resource_sets(self, event):
# return a mapping of (account_id, region): [resource_arns]
# per the finding in the event.
# Group resources by account_id, region for role assumes
resource_sets = {}
# Loop over findings and set resource set accordingly
# Lazy import to avoid aws sdk runtime dep in core
from c7n.resources.aws import Arn
for finding in event['detail']['findings']:
resource_sets.setdefault(
(finding['AwsAccountId'], finding['Resources'][0]['Region']),
[]).append(Arn.parse(finding['Resources'][0]['Id']))
# Warn if not configured for member-role and have multiple accounts resources.
if (not self.policy.data['mode'].get('member-role')
and {self.policy.options.account_id} != {
account_id
for (account_id, region), rarns in resource_sets.items()
}):
msg = ('hub-mode not configured for multi-account member-role '
'but multiple resource accounts found')
self.policy.log.warning(msg)
raise PolicyExecutionError(msg)
return resource_sets
def process(self, resources):
client = local_session(self.manager.session_factory).client('s3control')
for r in resources:
arn = Arn.parse(r['AccessPointArn'])
try:
client.delete_access_point(AccountId=arn.account_id, Name=r['Name'])
except client.NotFoundException:
continue
def augment(self, resources):
client = local_session(self.manager.session_factory).client('s3control')
results = []
for r in resources:
arn = Arn.parse(r['AccessPointArn'])
ap = client.get_access_point(AccountId=arn.account_id, Name=r['Name'])
ap.pop('ResponseMetadata', None)
results.append(ap)
return results
def process(self, resources, event=None):
client = local_session(self.manager.session_factory).client('s3control')
for r in resources:
if self.policy_attribute in r:
continue
arn = Arn.parse(r['AccessPointArn'])
r[self.policy_attribute] = client.get_access_point_policy(
AccountId=arn.account_id, Name=r['Name']
).get('Policy')
return super().process(resources, event)
def get_resources(self, ids, cache=True):
ids_normalized = []
for i in ids:
if not i.startswith('https://'):
ids_normalized.append(i)
continue
ids_normalized.append(i.rsplit('/', 1)[-1])
resources = super(SQS, self).get_resources(ids_normalized, cache)
return [
r for r in resources
if Arn.parse(r['QueueArn']).resource in ids_normalized
]
def test_resolve_import_finding(self):
factory = self.replay_flight_data('test_security_hub_mode_resolve')
policy = self.load_policy({
'name': 'trail-fixer',
'resource': 'aws.iam-user',
'mode': {
'type': 'hub-finding',
'role': 'foo'}},
session_factory=factory)
event = event_data("event-securityhub-iamkey-finding-action.json")
hub = policy.get_execution_mode()
resources = hub.resolve_import_finding(event)
self.assertEqual(
sorted(resources),
sorted(['arn:aws:iam::644160558196:user/kapil']))
# Lazy import to avoid aws sdk runtime dep in core
from c7n.resources.aws import Arn
resources = hub.resolve_resources({Arn.parse(r) for r in resources})
self.assertEqual(len(resources), 1)
self.assertEqual(resources[0]['UserName'], 'kapil')
def get_dimensions(self, resource):
return [{
'Name': self.model.dimension,
'Value': Arn.parse(resource['LoadBalancerArn']).resource
}]
