def lambda_handler(event, context):
""" Lambda handler to evaluate public EBS snapshots """
set_logging(level=logging.INFO)
try:
payload = json.loads(event["Records"][0]["Sns"]["Message"])
account_id = payload['account_id']
account_name = payload['account_name']
# get the last region from the list to process
region = payload['regions'].pop()
except Exception:
logging.exception(f"Failed to parse event\n{event}")
return
try:
config = Config()
main_account = Account(region=config.aws.region)
ddb_table = main_account.resource("dynamodb").Table(
config.ebsSnapshot.ddb_table_name)
account = Account(id=account_id,
name=account_name,
region=region,
role_name=config.aws.role_name_identification)
if account.session is None:
return
logging.debug(f"Checking for public EBS snapshots in {account}")
# existing open issues for account to check if resolved
open_issues = IssueOperations.get_account_open_issues(
ddb_table, account_id, EBSPublicSnapshotIssue)
# make dictionary for fast search by id
# and filter by current region
open_issues = {
issue.issue_id: issue
for issue in open_issues if issue.issue_details.region == region
}
logging.debug(f"Public EBS snapshots in DDB:\n{open_issues.keys()}")
checker = EBSPublicSnapshotsChecker(account=account)
if checker.check():
for snapshot in checker.snapshots:
if snapshot.public:
issue = EBSPublicSnapshotIssue(account_id, snapshot.id)
issue.issue_details.region = snapshot.account.region
issue.issue_details.volume_id = snapshot.volume_id
issue.issue_details.tags = snapshot.tags
if config.ebsSnapshot.in_whitelist(account_id,
snapshot.id):
issue.status = IssueStatus.Whitelisted
else:
issue.status = IssueStatus.Open
logging.debug(
f"Setting {snapshot.id} status {issue.status}")
IssueOperations.update(ddb_table, issue)
# remove issue id from issues_list_from_db (if exists)
# as we already checked it
open_issues.pop(snapshot.id, None)
logging.debug(
f"Public EBS snapshots in DDB:\n{open_issues.keys()}")
# all other unresolved issues in DDB are for removed/remediated EBS snapshots
for issue in open_issues.values():
IssueOperations.set_status_resolved(ddb_table, issue)
except Exception:
logging.exception(
f"Failed to check public EBS snapshots in '{region}' for '{account_id} ({account_name})'"
)
# push SNS messages until the list with regions to check is empty
if len(payload['regions']) > 0:
try:
Sns.publish(payload["sns_arn"], payload)
except Exception:
logging.exception("Failed to chain public EBS snapshots checking")
logging.debug(
f"Checked public EBS snapshots in '{region}' for '{account_id} ({account_name})'"
)
def lambda_handler(event, context):
""" Lambda handler to evaluate public ami issues"""
set_logging(level=logging.INFO)
try:
payload = json.loads(event["Records"][0]["Sns"]["Message"])
account_id = payload['account_id']
account_name = payload['account_name']
# get the last region from the list to process
region = payload['regions'].pop()
# if request_id is present in payload then this lambda was called from the API
request_id = payload.get('request_id', None)
except Exception:
logging.exception(f"Failed to parse event\n{event}")
return
try:
config = Config()
main_account = Account(region=config.aws.region)
ddb_table = main_account.resource("dynamodb").Table(
config.publicAMIs.ddb_table_name)
account = Account(id=account_id,
name=account_name,
region=region,
role_name=config.aws.role_name_identification)
if account.session is None:
return
logging.debug(f"Checking for Public AMI issues for {account}")
# existing open issues for account to check if resolved
open_issues = IssueOperations.get_account_open_issues(
ddb_table, account_id, PublicAMIIssue)
# make dictionary for fast search by id
# and filter by current region
open_issues = {
issue.issue_id: issue
for issue in open_issues if issue.issue_details.region == region
}
logging.debug(f"Public AMIs in DDB:\n{open_issues.keys()}")
checker = PublicAMIChecker(account=account)
if checker.check():
for ami in checker.amis:
logging.debug(f"Checking {ami.id}")
if ami.public_access:
issue = PublicAMIIssue(account_id, ami.id)
issue.issue_details.tags = ami.tags
issue.issue_details.name = ami.name
issue.issue_details.region = region
if config.publicAMIs.in_whitelist(account_id, ami.id):
issue.status = IssueStatus.Whitelisted
else:
issue.status = IssueStatus.Open
logging.debug(
f"Setting {ami.id}/{ami.id} status {issue.status}")
IssueOperations.update(ddb_table, issue)
# remove issue id from issues_list_from_db (if exists)
# as we already checked it
open_issues.pop(ami.id, None)
logging.debug(f"Public AMIs in DDB:\n{open_issues.keys()}")
# all other unresolved issues in DDB are for removed/remediated keys
for issue in open_issues.values():
IssueOperations.set_status_resolved(ddb_table, issue)
# track the progress of API request to scan specific account/region/feature
if request_id:
api_table = main_account.resource("dynamodb").Table(
config.api.ddb_table_name)
DDB.track_progress(api_table, request_id)
except Exception:
logging.exception(
f"Failed to check AMI public access for '{account_id} ({account_name})'"
)
return
# push SNS messages until the list with regions to check is empty
if len(payload['regions']) > 0:
try:
Sns.publish(payload["sns_arn"], payload)
except Exception:
logging.exception("Failed to chain public AMI checking")
logging.debug(
f"Checked AMI public access for '{account_id} ({account_name})'")
def lambda_handler(event, context):
""" Lambda handler to evaluate insecure services """
set_logging(level=logging.INFO)
try:
payload = json.loads(event["Records"][0]["Sns"]["Message"])
account_id = payload['account_id']
account_name = payload['account_name']
# get the last region from the list to process
region = payload['regions'].pop()
except Exception:
logging.exception(f"Failed to parse event\n{event}")
return
try:
config = Config()
main_account = Account(region=config.aws.region)
ddb_table = main_account.resource("dynamodb").Table(
config.sg.ddb_table_name)
account = Account(id=account_id,
name=account_name,
region=region,
role_name=config.aws.role_name_identification)
if account.session is None:
return
logging.debug(f"Checking for insecure services in {account}")
# existing open issues for account to check if resolved
open_issues = IssueOperations.get_account_open_issues(
ddb_table, account_id, SecurityGroupIssue)
# make dictionary for fast search by id
# and filter by current region
open_issues = {
issue.issue_id: issue
for issue in open_issues if issue.issue_details.region == region
}
logging.debug(f"Security groups in DDB:\n{open_issues.keys()}")
checker = SecurityGroupsChecker(
account=account, restricted_ports=config.sg.restricted_ports)
if checker.check():
for sg in checker.groups:
logging.debug(f"Checking {sg.name} ({sg.id})")
if not sg.restricted:
# TODO: move instances detection for security group from reporting to identification
#ec2_instances = EC2Operations.get_instance_details_of_sg_associated(account.client("ec2"), sg.id)
#logging.debug(f"associated ec2 instances: {ec2_instances}")
issue = SecurityGroupIssue(account_id, sg.id)
issue.issue_details.name = sg.name
issue.issue_details.region = sg.account.region
issue.issue_details.tags = sg.tags
issue.issue_details.status = sg.status.value
for perm in sg.permissions:
for ip_range in perm.ip_ranges:
if not ip_range.restricted:
issue.add_perm(perm.protocol, perm.from_port,
perm.to_port, ip_range.cidr,
ip_range.status)
if config.sg.in_whitelist(
account_id, sg.name) or config.sg.in_whitelist(
account_id, sg.id):
issue.status = IssueStatus.Whitelisted
else:
issue.status = IssueStatus.Open
logging.debug(f"Setting {sg.id} status {issue.status}")
IssueOperations.update(ddb_table, issue)
# remove issue id from issues_list_from_db (if exists)
# as we already checked it
open_issues.pop(sg.id, None)
logging.debug(f"Security groups in DDB:\n{open_issues.keys()}")
# all other unresolved issues in DDB are for removed/remediated security groups
for issue in open_issues.values():
IssueOperations.set_status_resolved(ddb_table, issue)
except Exception:
logging.exception(
f"Failed to check insecure services in '{region}' for '{account_id} ({account_name})'"
)
# push SNS messages until the list with regions to check is empty
if len(payload['regions']) > 0:
try:
Sns.publish(payload["sns_arn"], payload)
except Exception:
logging.exception("Failed to chain insecure services checking")
logging.debug(
f"Checked insecure services in '{region}' for '{account_id} ({account_name})'"
)
def lambda_handler(event, context):
""" Lambda handler to evaluate s3 buckets acl """
set_logging(level=logging.INFO)
try:
payload = json.loads(event["Records"][0]["Sns"]["Message"])
account_id = payload['account_id']
account_name = payload['account_name']
# if request_id is present in payload then this lambda was called from the API
request_id = payload.get('request_id', None)
except Exception:
logging.exception(f"Failed to parse event\n{event}")
return
try:
config = Config()
main_account = Account(region=config.aws.region)
ddb_table = main_account.resource("dynamodb").Table(
config.s3acl.ddb_table_name)
account = Account(id=account_id,
name=account_name,
role_name=config.aws.role_name_identification)
if account.session is None:
return
logging.debug(f"Checking for public S3 ACLs in {account}")
# existing open issues for account to check if resolved
open_issues = IssueOperations.get_account_open_issues(
ddb_table, account_id, S3AclIssue)
# make dictionary for fast search by id
# and filter by current region
open_issues = {issue.issue_id: issue for issue in open_issues}
logging.debug(f"S3 in DDB:\n{open_issues.keys()}")
checker = S3BucketsAclChecker(account=account)
if not checker.check():
return
for bucket in checker.buckets:
logging.debug(f"Checking {bucket.name}")
if bucket.public:
issue = S3AclIssue(account_id, bucket.name)
issue.issue_details.owner = bucket.owner
issue.issue_details.public_acls = bucket.get_public_acls()
issue.issue_details.tags = bucket.tags
if config.s3acl.in_whitelist(account_id, bucket.name):
issue.status = IssueStatus.Whitelisted
else:
issue.status = IssueStatus.Open
logging.debug(f"Setting {bucket.name} status {issue.status}")
IssueOperations.update(ddb_table, issue)
# remove issue id from issues_list_from_db (if exists)
# as we already checked it
open_issues.pop(bucket.name, None)
logging.debug(f"S3 in DDB:\n{open_issues.keys()}")
# all other unresolved issues in DDB are for removed/remediated buckets
for issue in open_issues.values():
IssueOperations.set_status_resolved(ddb_table, issue)
if request_id:
api_table = main_account.resource("dynamodb").Table(
config.api.ddb_table_name)
DDB.track_progress(api_table, request_id)
except Exception:
logging.exception(
f"Failed to check s3 acls for '{account_id} ({account_name})'")
return
logging.debug(f"Checked s3 acls for '{account_id} ({account_name})'")
def lambda_handler(event, context):
""" Lambda handler to evaluate iam user keys rotation """
set_logging(level=logging.INFO)
try:
payload = json.loads(event["Records"][0]["Sns"]["Message"])
account_id = payload['account_id']
account_name = payload['account_name']
except Exception:
logging.exception(f"Failed to parse event\n{event}")
return
try:
config = Config()
main_account = Account(region=config.aws.region)
ddb_table = main_account.resource("dynamodb").Table(
config.iamUserKeysRotation.ddb_table_name)
account = Account(id=account_id,
name=account_name,
role_name=config.aws.role_name_identification)
if account.session is None:
return
logging.debug(f"Checking for IAM user keys rotation for {account}")
# existing open issues for account to check if resolved
open_issues = IssueOperations.get_account_open_issues(
ddb_table, account_id, IAMKeyRotationIssue)
# make dictionary for fast search by id
# and filter by current region
open_issues = {issue.issue_id: issue for issue in open_issues}
logging.debug(
f"Users with keys to rotate in DDB:\n{open_issues.keys()}")
checker = IAMKeyChecker(account=account,
now=config.now,
rotation_criteria_days=config.
iamUserKeysRotation.rotation_criteria_days)
if not checker.check(last_used_check_enabled=False):
return
for user in checker.users:
for key in user.stale_keys:
issue = IAMKeyRotationIssue(account_id, key.id)
issue.issue_details.username = user.id
issue.issue_details.create_date = key.create_date.isoformat()
if config.iamUserKeysRotation.in_whitelist(
account_id,
key.id) or config.iamUserKeysRotation.in_whitelist(
account_id, user.id):
issue.status = IssueStatus.Whitelisted
else:
issue.status = IssueStatus.Open
logging.debug(
f"Setting {key.id}/{user.id} status {issue.status}")
IssueOperations.update(ddb_table, issue)
# remove issue id from issues_list_from_db (if exists)
# as we already checked it
open_issues.pop(key.id, None)
logging.debug(f"Keys to rotate in DDB:\n{open_issues.keys()}")
# all other unresolved issues in DDB are for removed/remediated keys
for issue in open_issues.values():
IssueOperations.set_status_resolved(ddb_table, issue)
except Exception:
logging.exception(
f"Failed to check IAM user keys rotation for '{account_id} ({account_name})'"
)
return
logging.debug(
f"Checked IAM user keys rotation for '{account_id} ({account_name})'")
def lambda_handler(event, context):
""" Lambda Handler to describe cloud trails enabled or not for each region """
set_logging(level=logging.INFO)
try:
payload = json.loads(event["Records"][0]["Sns"]["Message"])
account_id = payload['account_id']
account_name = payload['account_name']
# get the last region from the list to process
region = payload['regions'].pop()
# if request_id is present in payload then this lambda was called from the API
request_id = payload.get('request_id', None)
except Exception:
logging.exception(f"Failed to parse event\n{event}")
return
try:
config = Config()
main_account = Account(region=config.aws.region)
ddb_table = main_account.resource("dynamodb").Table(
config.cloudtrails.ddb_table_name)
account = Account(id=account_id,
name=account_name,
region=region,
role_name=config.aws.role_name_identification)
if account.session is None:
return
logging.debug(f"Checking for CloudTrail logging issues in {account}")
# existing open issues for account to check if resolved
open_issues = IssueOperations.get_account_open_issues(
ddb_table, account_id, CloudTrailIssue)
# make dictionary for fast search by id
# and filter by current region
open_issues = {
issue.issue_id: issue
for issue in open_issues if issue.issue_id == region
}
logging.debug(f"CloudTrail region in DDB:\n{open_issues.keys()}")
checker = CloudTrailChecker(account=account)
if checker.check():
if checker.disabled or checker.delivery_errors:
issue = CloudTrailIssue(account_id, region)
issue.issue_details.disabled = checker.disabled
issue.issue_details.delivery_errors = checker.delivery_errors
issue.add_trails(checker.trails)
if config.cloudtrails.in_whitelist(account_id, region):
issue.status = IssueStatus.Whitelisted
else:
issue.status = IssueStatus.Open
logging.debug(f"Setting {region} status {issue.status}")
IssueOperations.update(ddb_table, issue)
# issue exists in ddb and was fixed
elif region in open_issues:
IssueOperations.set_status_resolved(ddb_table,
open_issues[region])
# track the progress of API request to scan specific account/region/feature
if request_id:
api_table = main_account.resource("dynamodb").Table(
config.api.ddb_table_name)
DDB.track_progress(api_table, request_id)
except Exception:
logging.exception(
f"Failed to check CloudTrail in '{region}' for '{account_id} ({account_name})'"
)
# push SNS messages until the list with regions to check is empty
if len(payload['regions']) > 0:
try:
Sns.publish(payload["sns_arn"], payload)
except Exception:
logging.exception("Failed to chain CloudTrail checking")
logging.debug(
f"Checked CloudTrail in '{region}' for '{account_id} ({account_name})'"
)
def lambda_handler(event, context):
""" Lambda handler to evaluate SQS queue policy """
set_logging(level=logging.DEBUG)
try:
payload = json.loads(event["Records"][0]["Sns"]["Message"])
account_id = payload['account_id']
account_name = payload['account_name']
# get the last region from the list to process
region = payload['regions'].pop()
# region = payload['region']
except Exception:
logging.exception(f"Failed to parse event\n{event}")
return
try:
config = Config()
main_account = Account(region=config.aws.region)
ddb_table = main_account.resource("dynamodb").Table(config.sqspolicy.ddb_table_name)
account = Account(id=account_id,
name=account_name,
region=region,
role_name=config.aws.role_name_identification)
if account.session is None:
return
logging.debug(f"Checking for public SQS policies in {account}")
# existing open issues for account to check if resolved
open_issues = IssueOperations.get_account_open_issues(ddb_table, account_id, SQSPolicyIssue)
# make dictionary for fast search by id
# and filter by current region
open_issues = {issue.issue_id: issue for issue in open_issues if issue.issue_details.region == region}
logging.debug(f"SQS in DDB:\n{open_issues.keys()}")
checker = SQSPolicyChecker(account=account)
if checker.check():
for queue in checker.queues:
logging.debug(f"Checking {queue.name}")
if queue.public:
issue = SQSPolicyIssue(account_id, queue.url)
issue.issue_details.tags = queue.tags
issue.issue_details.name = queue.name
issue.issue_details.region = queue.account.region
issue.issue_details.policy = queue.policy
if config.sqspolicy.in_whitelist(account_id, queue.url):
issue.status = IssueStatus.Whitelisted
else:
issue.status = IssueStatus.Open
logging.debug(f"Setting {queue.name} status {issue.status}")
IssueOperations.update(ddb_table, issue)
# remove issue id from issues_list_from_db (if exists)
# as we already checked it
open_issues.pop(queue.url, None)
logging.debug(f"SQS in DDB:\n{open_issues.keys()}")
# all other unresolved issues in DDB are for removed/remediated queues
for issue in open_issues.values():
IssueOperations.set_status_resolved(ddb_table, issue)
except Exception:
logging.exception(f"Failed to check SQS policies for '{account_id} ({account_name})'")
return
# push SNS messages until the list with regions to check is empty
if len(payload['regions']) > 0:
try:
Sns.publish(payload["sns_arn"], payload)
except Exception:
logging.exception("Failed to chain insecure services checking")
logging.debug(f"Checked SQS policies for '{account_id} ({account_name})'")