Ensure that access policy does not allow anonymous access for AWS Secrets Manager

Access policy of Secrets Manager allows anonymous access. Anonymous access could lead to sensitive data exposure.

In AWS Console -

1. Sign in to the AWS console and go to the Secrets Manager console.
2. In the Navigation pane, select Secrets.
3. In the list of Secrets, select the secret to edit.
4. In Resource permissions box, select Edit Permissions and add an IAM policy accordingly.
5. Select Save.

In Terraform -

1. Review the policy attached to the aws_secretsmanager_secret resource and ensure necessary changes are made.

References:
https://docs.aws.amazon.com/secretsmanager/latest/userguide/auth-and-access_examples.html
https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/secretsmanager_secret