Setting up AWS Firewall Manager​ Fortigate CNF policies

Fortigate Cloud Native Firewall (CNF) as a Service is a third-party firewall service that you can use for your AWS Firewall Manager policies. With Fortigate CNF for Firewall Manager, you can create and centrally deploy Fortigate CNF resources and policy sets across all of your AWS accounts. To use AWS Firewall Manager to enable Fortigate CNF policies, perform the following steps in sequence. For more information about Fortigate CNF policies, see Using Fortigate Cloud Native Firewall (CNF) as a Service policies for Firewall Manager.

Step 1: Completing the general prerequisites

There are several mandatory steps to prepare your account for AWS Firewall Manager. Those steps are described in AWS Firewall Manager prerequisites. Complete all the prerequisites before proceeding to the next step.

Step 2: Completing the Fortigate CNF policy prerequisites

There are additional mandatory steps that you must complete in order to use Fortigate CNF policies. Those steps are described in Fortigate Cloud Native Firewall (CNF) as a Service policy prerequisites. Complete all the prerequisites before proceeding to the next step.

Step 3: Creating and applying a Fortigate CNF policy

After completing the prerequisites, you create an AWS Firewall Manager Fortigate CNF policy.

For more information about Firewall Manager policies for Fortigate CNF, see Using Fortigate Cloud Native Firewall (CNF) as a Service policies for Firewall Manager.

To create a Firewall Manager policy for Fortigate CNF (console)

1. Sign in to the AWS Management Console using your Firewall Manager administrator account, and then open the Firewall Manager console at https://console.aws.amazon.com/wafv2/fmsv2. For information about setting up a Firewall Manager administrator account, see AWS Firewall Manager prerequisites.

   Note

   For information about setting up a Firewall Manager administrator account, see AWS Firewall Manager prerequisites.

2. In the navigation pane, choose Security policies.

3. Choose Create policy.

4. For Policy type, choose Fortigate CNF. If you haven't already subscribed to the Fortigate CNF service in the AWS Marketplace, you'll need to do that first. To subscribe in the AWS Marketplace, choose View AWS Marketplace details.

5. For Deployment model, choose either the Distributed model or Centralized model. The deployment model determines how Firewall Manager manages endpoints for the policy. With the distributed model, Firewall Manager maintains firewall endpoints in each VPC that's within policy scope. With the centralized model, Firewall Manager maintains a single endpoint in an inspection VPC.

6. For Region, choose an AWS Region. To protect resources in multiple Regions, you must create separate policies for each Region.

7. Choose Next.

9. In the policy configuration, choose the Fortigate CNF firewall policy to associate with this policy. The list of Fortigate CNF firewall policies contains all of the Fortigate CNF firewall policies that are associated with your Fortigate CNF tenant. For information about creating and managing Fortigate CNF firewall policies, see the Fortigate CNF documentation.

10. Choose Next.

11. Under Configure third-party firewall endpoint do one of the following, depending on whether you're using the distributed or centralized deployment model to create your firewall endpoints:

    • If you're using the distributed deployment model for this policy, under Availability Zones, select which Availability Zones to create firewall endpoints in. You can select Availability Zones by Availability Zone name or by Availability Zone ID.

    • If you're using the centralized deployment model for this policy, in AWS Firewall Manager endpoint configuration under Inspection VPC configuration, enter the AWS account ID of the owner of the inspection VPC, and the VPC ID of the inspection VPC.

      • Under Availability Zones, select which Availability Zones to create firewall endpoints in. You can select Availability Zones by Availability Zone name or by Availability Zone ID.

12. Choose Next.

13. For Policy scope, under AWS accounts this policy applies to, choose the option as follows:

    • If you want to apply the policy to all accounts in your organization, leave the default selection, Include all accounts under my AWS organization.

    • If you want to apply the policy only to specific accounts or accounts that are in specific AWS Organizations organizational units (OUs), choose Include only the specified accounts and organizational units, and then add the accounts and OUs that you want to include. Specifying an OU is the equivalent of specifying all accounts in the OU and in any of its child OUs, including any child OUs and accounts that are added at a later time.

    • If you want to apply the policy to all but a specific set of accounts or AWS Organizations organizational units (OUs), choose Exclude the specified accounts and organizational units, and include all others, and then add the accounts and OUs that you want to exclude. Specifying an OU is the equivalent of specifying all accounts in the OU and in any of its child OUs, including any child OUs and accounts that are added at a later time.

    You can only choose one of the options.

    After you apply the policy, Firewall Manager automatically evaluates any new accounts against your settings. For example, if you include only specific accounts, Firewall Manager doesn't apply the policy to any new accounts. As another example, if you include an OU, when you add an account to the OU or to any of its child OUs, Firewall Manager automatically applies the policy to the new account.

    The Resource type for Fortigate CNF policies is VPC.

14. For Resources, you can narrow the scope of the policy using tagging, by either including or excluding resources with the tags that you specify. You can use inclusion or exclusion, and not both. For more information about tags, see Working with Tag Editor.

    If you enter more than one tag, a resource must have all of the tags to be included or excluded.

    Resource tags can only have non-null values. If you omit the value for a tag, Firewall Manager saves the tag with an empty string value: "". Resource tags only match with tags that have the same key and the same value.

15. For Grant cross-account access, choose Download AWS CloudFormation template. This downloads a AWS CloudFormation template that you can use to create a AWS CloudFormation stack. This stack creates an AWS Identity and Access Management role that grants Firewall Manager cross-account permissions to manage Fortigate CNF resources. For information about stacks, see Working with stacks in the AWS CloudFormation User Guide. To create a stack, you'll need the account ID from the Fortigate CNF portal.

16. Choose Next.

17. For Policy tags, add any identifying tags that you want to add to the Firewall Manager policy resource. For more information about tags, see Working with Tag Editor.

18. Choose Next.

19. Review the new policy settings and return to any pages where you need to any adjustments.

    Check to be sure that Policy actions is set to Identify resources that don’t comply with the policy rules, but don’t auto remediate. This allows you to review the changes that your policy would make before you enable them.

20. When you are satisfied with the policy, choose Create policy.

    In the AWS Firewall Manager policies pane, your policy should be listed. It will probably indicate Pending under the accounts headings and it will indicate the status of the Automatic remediation setting. The creation of a policy can take several minutes. After the Pending status is replaced with account counts, you can choose the policy name to explore the compliance status of the accounts and resources. For information, see Viewing compliance information for an AWS Firewall Manager policy

For more information about Firewall Manager Fortigate CNF policies, see Using Fortigate Cloud Native Firewall (CNF) as a Service policies for Firewall Manager.