File size: 2,307 Bytes
b40c49c | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 | """
Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
SPDX-License-Identifier: MIT-0
"""
from typing import Any
from cfnlint.jsonschema import ValidationError, Validator
from cfnlint.rules.functions._BaseFn import BaseFn
class DynamicReferenceSecureString(BaseFn):
id = "E1027"
shortdesc = "Check dynamic references secure strings are in supported locations"
description = (
"Dynamic References Secure Strings are only supported for a small set of"
" resource properties. Validate that they are being used in the correct"
" location when checking values and Fn::Sub in resource properties. Currently"
" doesn't check outputs, maps, conditions, parameters, and descriptions."
)
source_url = "https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/dynamic-references.html"
tags = ["functions", "dynamic reference"]
def __init__(self):
"""Init"""
super().__init__()
self.exceptions = [
"Resources/AWS::DirectoryService::MicrosoftAD/Properties/Password",
"Resources/AWS::DirectoryService::SimpleAD/Properties/Password",
"Resources/AWS::ElastiCache::ReplicationGroup/Properties/AuthToken",
"Resources/AWS::IAM::User/Properties/LoginProfile/Password",
"Resources/AWS::KinesisFirehose::DeliveryStream/Properties/RedshiftDestinationConfiguration/Password",
"Resources/AWS::OpsWorks::App/Properties/AppSource/Password",
"Resources/AWS::OpsWorks::Stack/Properties/RdsDbInstances/*/DbPassword",
"Resources/AWS::OpsWorks::Stack/Properties/CustomCookbooksSource/Password",
"Resources/AWS::RDS::DBCluster/Properties/MasterUserPassword",
"Resources/AWS::RDS::DBInstance/Properties/MasterUserPassword",
"Resources/AWS::Redshift::Cluster/Properties/MasterUserPassword",
]
def validate(self, validator: Validator, s: Any, instance: Any, schema: Any):
if validator.context.path.cfn_path_string in self.exceptions:
return
yield ValidationError(
(
f"Dynamic reference {instance!r} to SSM secure strings "
"can only be used in resource properties"
),
rule=self,
)
|