​​SCP Best Practices

🔹 Deny list strategy
🔹 Allow list strategy

🔹 https://aws.amazon.com/blogs/mt/codify-your-best-practices-using-service-control-policies-part-1/

🔸 Organizational Units

🔸 https://aws.amazon.com/blogs/mt/best-practices-for-organizational-units-with-aws-organizations/

▪️ Deny Changes to CloudWatch monitors
▪️ Deny Changes to CloudWatch Logs
▪️ Deny Changes to Config
▪️ Deny accounts from leaving the organization
▪️ Deny all actions
▪️ Deny access to IAM with role exception
▪️ Deny actions outside approved regions
▪️ Deny ability to pass IAM roles
▪️ Deny changes to GuardDuty
▪️ Deny changes to AWS Budget Actions
▪️ Limit changes to Cost Anomaly Detection, except when using a specific IAM Role

▪️ https://aws.amazon.com/blogs/mt/codify-your-best-practices-using-service-control-policies-part-2/

☮️

#SCP #security #best_practices

Student SCP policy — политика для защиты аккаунтов, предназначенных для изучения AWS.

Покрыты все нужные сервисы, запрещены неадекватные действия по биллингу, запрещены действия, которые могут иметь долгосрочный и неотвратимый характер.

{
  "Version": "2012-10-17",
  "Statement": [
    {
      "Sid": "StudentSCPpolicy",
      "Effect": "Deny",
      "Action": [
        "athena:CreateCapacityReservation",
        "aws-marketplace:AcceptAgreementRequest",
        "aws-marketplace:CreateAgreementRequest",
        "aws-marketplace:CreatePrivateMarketplaceRequests",
        "aws-marketplace:Subscribe",
        "backup:CreateLogicallyAirGappedBackupVault",
        "backup:PutBackupVaultLockConfiguration",
        "bedrock:CreateFoundationModelAgreement",
        "bedrock:CreateProvisionedModelThroughput",
        "cloudfront:CreateSavingsPlan",
        "devicefarm:PurchaseOffering",
        "directconnect:ConfirmCustomerAgreement",
        "dynamodb:PurchaseReservedCapacityOfferings",
        "ec2:AcceptReservedInstancesExchangeQuote",
        "ec2:CreateCapacityReservation",
        "ec2:CreateCapacityReservationFleet",
        "ec2:CreateReservedInstancesListing",
        "ec2:LockSnapshot",
        "ec2:PurchaseCapacityBlock",
        "ec2:PurchaseHostReservation",
        "ec2:PurchaseReservedInstancesOffering",
        "ec2:PurchaseScheduledInstances",
        "eks:CreateEksAnywhereSubscription",
        "elasticache:PurchaseReservedCacheNodesOffering",
        "elemental-appliances-software:CreateOrderV1",
        "elemental-appliances-software:SubmitOrderV1",
        "es:PurchaseReservedElasticsearchInstanceOffering",
        "es:PurchaseReservedInstanceOffering",
        "freertos:CreateSubscription",
        "glacier:CompleteVaultLock",
        "glacier:PurchaseProvisionedCapacity",
        "groundstation:ReserveContact",
        "iottwinmaker:UpdatePricingPlan",
        "iq:ApprovePaymentRequest",
        "mediaconnect:PurchaseOffering",
        "medialive:PurchaseOffering",
        "memorydb:PurchaseReservedNodesOffering",
        "organizations:LeaveOrganization",
        "organizations:DeleteOrganization",
        "organizations:RemoveAccountFromOrganization",
        "outposts:CreateOrder",
        "panorama:ProvisionDevice",
        "quicksight:Subscribe",
        "quicksight:UpdateSPICECapacityConfiguration",
        "rbin:LockRule",
        "rds:PurchaseReservedDBInstancesOffering",
        "redshift:AcceptReservedNodeExchange",
        "redshift:PurchaseReservedNodeOffering",
        "route53domains:AcceptDomainTransferFromAnotherAwsAccount",
        "route53domains:RegisterDomain",
        "route53domains:RenewDomain",
        "route53domains:TransferDomain",
        "route53domains:TransferDomainToAnotherAwsAccount",
        "s3:PutBucketObjectLockConfiguration",
        "s3:PutObjectLegalHold",
        "s3:PutObjectRetention",
        "s3-object-lambda:PutObjectLegalHold",
        "s3-object-lambda:PutObjectRetention",
        "savingsplans:CreateSavingsPlan",
        "shield:CreateSubscription",
        "snowball:CreateJob",
        "snowball:CreateLongTermPricing"
      ],
      "Resource": "*"
    }
  ]
}

Student SCP policy не имеет ограничений на адекватные действия и создание любых ресурсов, что могут потребоваться для изучения. Поэтому предполагается обязательная настройка AWS Budgets и алертов.

Если требуется более жёсткие ограничений, то нужно использовать Allow List Approach — вместо запрещения проблемных лишь разрешать нужные.

#security #organizations #scp