{
    "Behavior": "PROACTIVE",
    "ComplianceFrameworkMappings": [
        {
            "ComplianceFramework": "NIST 800-53 Rev 5",
            "Ids": [
                "CP-10",
                "CP-6(2)",
                "SC-36",
                "SC-5(2)",
                "SI-13(5)"
            ]
        }
    ],
    "ControlOwner": "AWS Control Tower",
    "DeploymentMechanism": "AWS CloudFormation Hook",
    "DeploymentOwner": "AWS Control Tower",
    "Description": "This control checks whether an AWS Network Firewall firewall is deployed across multiple Availability Zones (AZs), to permit automatic failover between AZs.",
    "DisplayName": "Require an AWS Network Firewall firewall to be deployed across multiple Availability Zones",
    "DocumentationReferences": [
        {
            "DisplayName": "Configuring your VPC and other components for AWS Network Firewall",
            "Type": "AWS Documentation",
            "Url": "https://docs.aws.amazon.com/network-firewall/latest/developerguide/vpc-config.html"
        }
    ],
    "EvaluatedResourceTypes": [
        "AWS::NetworkFirewall::Firewall"
    ],
    "EvaluatedServices": [
        "AWS Network Firewall"
    ],
    "Groups": [
        "digital-sovereignty"
    ],
    "Guidance": "Elective",
    "Id": "CT.NETWORK-FIREWALL.PR.5",
    "ImplementationType": "CloudFormation guard rule",
    "MinimumSupportedRuntimeVersion": "2.1",
    "Objectives": [
        {
            "Id": "CO.8",
            "Name": "Improve resiliency"
        }
    ],
    "RegionalPreference": "REGIONAL",
    "ReleaseDate": "2023-11-27",
    "RemediationMessage": "In the SubnetMappings parameter, provide at least two entries that refer to subnets in different Availability Zones.",
    "Severity": "MEDIUM",
    "SupportedRegions": [
        "af-south-1",
        "ap-east-1",
        "ap-northeast-1",
        "ap-northeast-2",
        "ap-northeast-3",
        "ap-south-1",
        "ap-south-2",
        "ap-southeast-1",
        "ap-southeast-2",
        "ap-southeast-3",
        "ap-southeast-4",
        "ca-central-1",
        "eu-central-1",
        "eu-central-2",
        "eu-north-1",
        "eu-south-1",
        "eu-south-2",
        "eu-west-1",
        "eu-west-2",
        "eu-west-3",
        "il-central-1",
        "me-central-1",
        "me-south-1",
        "sa-east-1",
        "us-east-1",
        "us-east-2",
        "us-west-1",
        "us-west-2"
    ],
    "TargetOuType": "CUSTOM",
    "Version": "1",
    "Visibility": "PUBLIC"
}