Operational Best Practices for ACSC ISM - AWS Config

Operational Best Practices for ACSC ISM

Conformance packs provide a general-purpose compliance framework designed to enable you to create security, operational or cost-optimization governance checks using managed or custom AWS Config rules and AWS Config remediation actions. Conformance Packs, as sample templates, are not designed to fully ensure compliance with a specific governance or compliance standard. You are responsible for making your own assessment of whether your use of the Services meets applicable legal and regulatory requirements.

The following provides a sample mapping between the Australian Cyber Security Centre (ACSC) Information Security Manual (ISM) 2020-06 and AWS managed Config rules. Each Config rule applies to a specific AWS resource, and relates to one or more ISM controls. An ISM control can be related to multiple Config rules. Refer to the table below for more detail and guidance related to these mappings.

This sample conformance pack template contains mappings to controls within the ISM framework, which was created by the Commonwealth of Australia and can be found at Australian Government Information Security Manual. Licensing of the framework under Creative Commons Attribution 4.0 International Public License and copyright information for the framework (including a disclaimer of warranties) can be found at ACSC | Copyright.

AWS Region: All supported AWS Regions except Asia Pacific (Hong Kong), Middle East (Bahrain), and South America (São Paulo)

Control ID AWS Config Rule Guidance
43 response-plan-exists-maintained (process check) Ensure incident response plans are established, maintained, and distributed to responsible personnel.
252 security-awareness-program-exists (process check) Establish and maintain a security awareness program for your organization. Security awareness programs educate employees on how to protect their organization from various security breaches or incidents.
261

api-gw-execution-logging-enabled

API Gateway logging displays detailed views of users who accessed the API and the way they accessed the API. This insight enables visibility of user activities.
261

elb-logging-enabled

Elastic Load Balancing activity is a central point of communication within an environment. Ensure ELB logging is enabled. The collected data provides detailed information about requests sent to the ELB. Each log contains information such as the time the request was received, the client's IP address, latencies, request paths, and server responses.
261

wafv2-logging-enabled

To help with logging and monitoring within your environment, enable AWS WAF (V2) logging on regional and global web ACLs. AWS WAF logging provides detailed information about the traffic that is analyzed by your web ACL. The logs record the time that AWS WAF received the request from your AWS resource, information about the request, and an action for the rule that each request matched.
298

ec2-managedinstance-patch-compliance-status-check

Enable this rule to help with identification and documentation of Amazon Elastic Compute Cloud (Amazon EC2) vulnerabilities. The rule checks if Amazon EC2 instance patch compliance in AWS Systems Manager as required by your organization's policies and procedures.
298

redshift-cluster-maintenancesettings-check

This rule ensures that Amazon Redshift clusters have the preferred settings for your organization. Specifically, that they have preferred maintenance windows and automated snapshot retention periods for the database. This rule requires you to set the allowVersionUpgrade. The default is true. It also lets you optionally set the preferredMaintenanceWindow (the default is sat:16:00-sat:16:30), and the automatedSnapshotRetentionPeriod (the default is 1). The actual values should reflect your organization's policies.
298

elastic-beanstalk-managed-updates-enabled

Enabling managed platform updates for an Amazon Elastic Beanstalk environment ensures that the latest available platform fixes, updates, and features for the environment are installed. Keeping up to date with patch installation is a best practice in securing systems.
298

rds-automatic-minor-version-upgrade-enabled

Enable automatic minor version upgrades on your Amazon Relational Database Service (RDS) instances to ensure the latest minor version updates to the Relational Database Management System (RDBMS) are installed, which may include security patches and bug fixes.
380

iam-group-has-users-check

AWS Identity and Access Management (IAM) can help you incorporate the principles of least privilege and separation of duties with access permissions and authorizations, by ensuring that IAM groups have at least one IAM user. Placing IAM users in groups based on their associated permissions or job function is one way to incorporate least privilege.
459

api-gw-cache-enabled-and-encrypted

To help protect data at rest, ensure encryption is enabled for your API Gateway stage's cache. Because sensitive data can be captured for the API method, enable encryption at rest to help protect that data.
459

cloud-trail-encryption-enabled

Because sensitive data may exist and to help protect data at rest, ensure encryption is enabled for your AWS CloudTrail trails.
459

ec2-ebs-encryption-by-default

To help protect data at rest, ensure that encryption is enabled for your Amazon Elastic Block Store (Amazon EBS) volumes. Because sensitive data can exist at rest in these volumes, enable encryption at rest to help protect that data.
459

efs-encrypted-check

Because sensitive data can exist and to help protect data at rest, ensure encryption is enabled for your Amazon Elastic File System (EFS).
459

encrypted-volumes

Because sensitive data can exist and to help protect data at rest, ensure encryption is enabled for your Amazon Elastic Block Store (Amazon EBS) volumes.
459

s3-bucket-server-side-encryption-enabled

To help protect data at rest, ensure encryption is enabled for your Amazon Simple Storage Service (Amazon S3) buckets. Because sensitive data can exist at rest in Amazon S3 buckets, enable encryption to help protect that data.
459

s3-default-encryption-kms

Ensure that encryption is enabled for your Amazon Simple Storage Service (Amazon S3) buckets. Because sensitive data can exist at rest in an Amazon S3 bucket, enable encryption at rest to help protect that data.
459

redshift-cluster-kms-enabled

To help protect data at rest, ensure encryption with AWS Key Management Service (AWS KMS) is enabled for your Amazon Redshift cluster. Because sensitive data can exist at rest in Redshift clusters, enable encryption at rest to help protect that data.
459

elasticsearch-encrypted-at-rest

Because sensitive data can exist and to help protect data at rest, ensure encryption is enabled for your Amazon OpenSearch Service (OpenSearch Service) domains.
459

sagemaker-endpoint-configuration-kms-key-configured

To help protect data at rest, ensure encryption with AWS Key Management Service (AWS KMS) is enabled for your SageMaker endpoint. Because sensitive data can exist at rest in SageMaker endpoint, enable encryption at rest to help protect that data.
459

sagemaker-notebook-instance-kms-key-configured

To help protect data at rest, ensure encryption with AWS Key Management Service (AWS KMS) is enabled for your SageMaker notebook. Because sensitive data can exist at rest in SageMaker notebook, enable encryption at rest to help protect that data.
459

backup-recovery-point-encrypted

Ensure that encryption is enabled for your AWS Backup recovery points. Because sensitive data can exist at rest, enable encryption at rest to help protect that data.
580 audit-log-policy-exists (process check) Establish and maintain an audit log management policy that defines your organization's logging requirements. This includes, but is not limited to, review and retention of audit logs.
586

cloud-trail-log-file-validation-enabled

Utilize AWS CloudTrail log file validation to check the integrity of CloudTrail logs. Log file validation helps determine if a log file was modified or deleted or unchanged after CloudTrail delivered it. This feature is built using industry standard algorithms: SHA-256 for hashing and SHA-256 with RSA for digital signing. This makes it computationally infeasible to modify, delete or forge CloudTrail log files without detection.
586

cloudwatch-log-group-encrypted

To help protect sensitive data at rest, ensure encryption is enabled for your Amazon CloudWatch Log Groups.
634

vpc-flow-logs-enabled

The VPC flow logs provide detailed records for information about the IP traffic going to and from network interfaces in your Amazon Virtual Private Cloud (Amazon VPC). By default, the flow log record includes values for the different components of the IP flow, including the source, destination, and protocol.
859

cw-loggroup-retention-period-check

Ensure a minimum duration of event log data is retained for your log groups to help with troubleshooting and forensics investigations. The lack of available past event log data makes it difficult to reconstruct and identify potentially malicious events.
974

iam-user-mfa-enabled

Enable this rule to restrict access to resources in the AWS Cloud. This rule ensures multi-factor authentication (MFA) is enabled for all IAM users. MFA adds an extra layer of protection on top of a user name and password. Reduce the incidents of compromised accounts by requiring MFA for IAM users.
974

mfa-enabled-for-iam-console-access

Manage access to resources in the AWS Cloud by ensuring that MFA is enabled for all AWS Identity and Access Management (IAM) users that have a console password. MFA adds an extra layer of protection on top of a user name and password. By requiring MFA for IAM users, you can reduce incidents of compromised accounts and keep sensitive data from being accessed by unauthorized users.
1139

elb-predefined-security-policy-ssl-check

To help protect data in transit, ensure that your Classic Elastic Load Balancing SSL listeners are using a predefined security policy. Elastic Load Balancing provides predefined SSL negotiation configurations that are used for SSL negotiation when a connection is established between a client and your load balancer. The SSL negotiation configurations provide compatibility with a broad range of clients and use high-strength cryptographic algorithms. This rule requires that you set a predefined security policy for your SSL listeners. The default security policy is: ELBSecurityPolicy-TLS-1-2-2017-0. The actual value should reflect your organization's policies
1173

root-account-hardware-mfa-enabled

Manage access to resources in the AWS Cloud by ensuring hardware MFA is enabled for the root user. The root user is the most privileged user in an AWS account. The MFA adds an extra layer of protection for a user name and password. By requiring MFA for the root user, you can reduce the incidents of compromised AWS accounts.
1173

root-account-mfa-enabled

Manage access to resources in the AWS Cloud by ensuring MFA is enabled for the root user. The root user is the most privileged user in an AWS account. The MFA adds an extra layer of protection for a user name and password. By requiring MFA for the root user, you can reduce the incidents of compromised AWS accounts.
1228

guardduty-enabled-centralized

Amazon GuardDuty can help to monitor and detect potential cybersecurity events by using threat intelligence feeds. These include lists of malicious IPs and machine learning to identify unexpected, unauthorized, and malicious activity within your AWS Cloud environment.
1240

alb-waf-enabled

Ensure AWS WAF is enabled on Elastic Load Balancers (ELB) to help protect web applications. A WAF helps to protect your web applications or APIs against common web exploits. These web exploits may affect availability, compromise security, or consume excessive resources within your environment.
1240

api-gw-associated-with-waf

AWS WAF enables you to configure a set of rules (called a web access control list (web ACL)) that allow, block, or count web requests based on customizable web security rules and conditions that you define. Ensure your Amazon API Gateway stage is associated with a WAF Web ACL to protect it from malicious attacks
1271

rds-instance-public-access-check

Manage access to resources in the AWS Cloud by ensuring that Amazon Relational Database Service (Amazon RDS) instances are not public. Amazon RDS database instances can contain sensitive information, and principles and access control is required for such accounts.
1271

redshift-enhanced-vpc-routing-enabled

Enhanced VPC routing forces all COPY and UNLOAD traffic between the cluster and data repositories to go through your Amazon VPC. You can then use VPC features such as security groups and network access control lists to secure network traffic. You can also use VPC flow logs to monitor network traffic.
1277

redshift-require-tls-ssl

Ensure that your Amazon Redshift clusters require TLS/SSL encryption to connect to SQL clients. Because sensitive data can exist, enable encryption in transit to help protect that data.
1277

rds-instance-iam-authentication-enabled

Ensure an AWS Identity and Access Management (IAM) authentication is enabled on Amazon Relational Database Service (Amazon RDS) instances to control access to systems and assets. This enforces network traffic to and from the database to be encrypted using Secure Sockets Layer (SSL). You are not required to store user credentials in the database, as authentication is managed externally.
1387

ec2-instance-managed-by-systems-manager

An inventory of the software platforms and applications within the organization is possible by managing Amazon Elastic Compute Cloud (Amazon EC2) instances with AWS Systems Manager. Use AWS Systems Manager to provide detailed system configurations, operating system patch levels, services name and type, software installations, application name, publisher and version, and other details about your environment.
1387

restricted-ssh

Amazon Elastic Compute Cloud (Amazon EC2) Security Groups can help manage network access by providing stateful filtering of ingress and egress network traffic to AWS resources. Not allowing ingress (or remote) traffic from 0.0.0.0/0 to port 22 on your resources help you restricting remote access.
1388

restricted-common-ports

Manage access to resources in the AWS Cloud by ensuring common ports are restricted on Amazon Elastic Compute Cloud (Amazon EC2) security groups. Not restricting access to ports to trusted sources can lead to attacks against the availability, integrity and confidentiality of systems. This rule allows you to optionally set blockedPort1 - blockedPort5 parameters (Config Defaults: 20,21,3389,3306,4333). The actual values should reflect your organization's policies.
1388

vpc-sg-open-only-to-authorized-ports

Manage access to resources in the AWS Cloud by ensuring common ports are restricted on Amazon Elastic Compute Cloud (Amazon EC2) Security Groups. Not restricting access on ports to trusted sources can lead to attacks against the availability, integrity and confidentiality of systems. By restricting access to resources within a security group from the internet (0.0.0.0/0) remote access can be controlled to internal systems.
1402

iam-password-policy

The identities and the credentials are issued, managed, and verified based on an organizational IAM password policy. They meet or exceed requirements as stated by NIST SP 800-63 and the AWS Foundational Security Best Practices standard for password strength. This rule allows you to optionally set RequireUppercaseCharacters (AWS Foundational Security Best Practices value: true), RequireLowercaseCharacters (AWS Foundational Security Best Practices value: true), RequireSymbols (AWS Foundational Security Best Practices value: true), RequireNumbers (AWS Foundational Security Best Practices value: true), MinimumPasswordLength (AWS Foundational Security Best Practices value: 14), PasswordReusePrevention (AWS Foundational Security Best Practices value: 24), and MaxPasswordAge (AWS Foundational Security Best Practices value: 90) for your IAM Password Policy. The actual values should reflect your organization's policies.
1404

iam-user-unused-credentials-check

AWS Identity and Access Management (IAM) can help you with access permissions and authorizations by checking for IAM passwords and access keys that are not used for a specified time period. If these unused credentials are identified, you should disable and/or remove the credentials, as this may violate the principle of least privilege. This rule requires you to set a value to the maxCredentialUsageAge (Config Default: 90). The actual value should reflect your organization's policies.
1405

cloud-trail-cloud-watch-logs-enabled

Use Amazon CloudWatch to centrally collect and manage log event activity. Inclusion of AWS CloudTrail data provides details of API call activity within your AWS account.
1405

cloudtrail-enabled

AWS CloudTrail can help in non-repudiation by recording AWS Management Console actions and API calls. You can identify the users and AWS accounts that called an AWS service, the source IP address where the calls generated, and the timings of the calls. Details of captured data are seen within AWS CloudTrail Record Contents.
1405

multi-region-cloudtrail-enabled

AWS CloudTrail records AWS Management Console actions and API calls. You can identify which users and accounts called AWS, the source IP address from where the calls were made, and when the calls occurred. CloudTrail will deliver log files from all AWS Regions to your S3 bucket if MULTI_REGION_CLOUD_TRAIL_ENABLED is enabled. Additionally, when AWS launches a new Region, CloudTrail will create the same trail in the new Region. As a result, you will receive log files containing API activity for the new Region without taking any action.
1405

cloudtrail-security-trail-enabled

This rule helps ensure the use of AWS recommended security best practices for AWS CloudTrail, by checking for the enablement of multiple settings. These include the use of log encryption, log validation, and enabling AWS CloudTrail in multiple regions.
1405

elasticsearch-logs-to-cloudwatch

Ensure Amazon OpenSearch Service domains have error logs enabled and streamed to Amazon CloudWatch Logs for retention and response. Domain error logs can assist with security and access audits, and can help to diagnose availability issues.
1405

api-gw-execution-logging-enabled

API Gateway logging displays detailed views of users who accessed the API and the way they accessed the API. This insight enables visibility of user activities.
1405

cloudtrail-s3-dataevents-enabled

The collection of Simple Storage Service (Amazon S3) data events helps in detecting any anomalous activity. The details include AWS account information that accessed an Amazon S3 bucket, IP address, and time of event.
1405

rds-logging-enabled

To help with logging and monitoring within your environment, ensure Amazon Relational Database Service (Amazon RDS) logging is enabled. With Amazon RDS logging, you can capture events such as connections, disconnections, queries, or tables queried.
1405

redshift-cluster-configuration-check

To protect data at rest, ensure that encryption is enabled for your Amazon Redshift clusters. You must also ensure that required configurations are deployed on Amazon Redshift clusters. The audit logging should be enabled to provide information about connections and user activities in the database. This rule requires that a value is set for clusterDbEncrypted (Config Default : TRUE), and loggingEnabled (Config Default: TRUE). The actual values should reflect your organization's policies.
1405

s3-bucket-logging-enabled

Amazon Simple Storage Service (Amazon S3) server access logging provides a method to monitor the network for potential cybersecurity events. The events are monitored by capturing detailed records for the requests that are made to an Amazon S3 bucket. Each access log record provides details about a single access request. The details include the requester, bucket name, request time, request action, response status, and an error code, if relevant.
1405

vpc-flow-logs-enabled

The VPC flow logs provide detailed records for information about the IP traffic going to and from network interfaces in your Amazon Virtual Private Cloud (Amazon VPC). By default, the flow log record includes values for the different components of the IP flow, including the source, destination, and protocol.
1405

wafv2-logging-enabled

To help with logging and monitoring within your environment, enable AWS WAF (V2) logging on regional and global web ACLs. AWS WAF logging provides detailed information about the traffic that is analyzed by your web ACL. The logs record the time that AWS WAF received the request from your AWS resource, information about the request, and an action for the rule that each request matched.
1405

elb-logging-enabled

Elastic Load Balancing activity is a central point of communication within an environment. Ensure ELB logging is enabled. The collected data provides detailed information about requests sent to the ELB. Each log contains information such as the time the request was received, the client's IP address, latencies, request paths, and server responses.
1410

iam-root-access-key-check

Access to systems and assets can be controlled by checking that the root user does not have access keys attached to their AWS Identity and Access Management (IAM) role. Ensure that the root access keys are deleted. Instead, create and use role-based AWS accounts to help to incorporate the principle of least functionality.
1425

rds-snapshot-encrypted

Ensure that encryption is enabled for your Amazon Relational Database Service (Amazon RDS) snapshots. Because sensitive data can exist at rest, enable encryption at rest to help protect that data.
1425

rds-storage-encrypted

To help protect data at rest, ensure that encryption is enabled for your Amazon Relational Database Service (Amazon RDS) instances. Because sensitive data can exist at rest in Amazon RDS instances, enable encryption at rest to help protect that data.
1425

sns-encrypted-kms

To help protect data at rest, ensure that your Amazon Simple Notification Service (Amazon SNS) topics require encryption using AWS Key Management Service (AWS KMS). Because sensitive data can exist at rest in published messages, enable encryption at rest to help protect that data.
1425

dynamodb-table-encrypted-kms

Ensure that encryption is enabled for your Amazon DynamoDB tables. Because sensitive data can exist at rest in these tables, enable encryption at rest to help protect that data. By default, DynamoDB tables are encrypted with an AWS owned customer master key (CMK).
1425

redshift-cluster-configuration-check

To protect data at rest, ensure that encryption is enabled for your Amazon Redshift clusters. You must also ensure that required configurations are deployed on Amazon Redshift clusters. The audit logging should be enabled to provide information about connections and user activities in the database. This rule requires that a value is set for clusterDbEncrypted (Config Default : TRUE), and loggingEnabled (Config Default: TRUE). The actual values should reflect your organization's policies.
1490

ec2-instance-managed-by-systems-manager

An inventory of the software platforms and applications within the organization is possible by managing Amazon Elastic Compute Cloud (Amazon EC2) instances with AWS Systems Manager. Use AWS Systems Manager to provide detailed system configurations, operating system patch levels, services name and type, software installations, application name, publisher and version, and other details about your environment.
1490

ec2-managedinstance-association-compliance-status-check

Use AWS Systems Manager Associations to help with inventory of software platforms and applications within an organization. AWS Systems Manager assigns a configuration state to your managed instances and allows you to set baselines of operating system patch levels, software installations, application configurations, and other details about your environment.
1511

db-instance-backup-enabled

The backup feature of Amazon RDS creates backups of your databases and transaction logs. Amazon RDS automatically creates a storage volume snapshot of your DB instance, backing up the entire DB instance. The system allows you to set specific retention periods to meet your resilience requirements.
1511

dynamodb-in-backup-plan

To help with data back-up processes, ensure your Amazon DynamoDB tables are a part of an AWS Backup plan. AWS Backup is a fully managed backup service with a policy-based backup solution. This solution simplifies your backup management and enables you to meet your business and regulatory backup compliance requirements.
1511

dynamodb-pitr-enabled

Enable this rule to check that information has been backed up. It also maintains the backups by ensuring that point-in-time recovery is enabled in Amazon DynamoDB. The recovery maintains continuous backups of your table for the last 35 days.
1511

ebs-in-backup-plan

To help with data back-up processes, ensure your Amazon Elastic Block Store (Amazon EBS) volumes are a part of an AWS Backup plan. AWS Backup is a fully managed backup service with a policy-based backup solution. This solution simplifies your backup management and enables you to meet your business and regulatory backup compliance requirements.
1511

efs-in-backup-plan

To help with data back-up processes, ensure your Amazon Elastic File System (Amazon EFS) file systems are a part of an AWS Backup plan. AWS Backup is a fully managed backup service with a policy-based backup solution. This solution simplifies your backup management and enables you to meet your business and regulatory backup compliance requirements.
1511

elasticache-redis-cluster-automatic-backup-check

When automatic backups are enabled, Amazon ElastiCache creates a backup of the cluster on a daily basis. The backup can be retained for a number of days as specified by your organization. Automatic backups can help guard against data loss. If a failure occurs, you can create a new cluster, which restores your data from the most recent backup.
1511

rds-in-backup-plan

To help with data back-up processes, ensure your Amazon Relational Database Service (Amazon RDS) instances are a part of an AWS Backup plan. AWS Backup is a fully managed backup service with a policy-based backup solution. This solution simplifies your backup management and enables you to meet your business and regulatory backup compliance requirements.
1511

s3-bucket-versioning-enabled

Amazon Simple Storage Service (Amazon S3) bucket versioning helps keep multiple variants of an object in the same Amazon S3 bucket. Use versioning to preserve, retrieve, and restore every version of every object stored in your Amazon S3 bucket. Versioning helps you to easily recover from unintended user actions and application failures.
1511

redshift-backup-enabled

To help with data back-up processes, ensure your Amazon Redshift clusters have automated snapshots. When automated snapshots are enabled for a cluster, Redshift periodically takes snapshots of that cluster. By default, Redshift takes a snapshot every eight hours or every 5 GB per node of data changes, or whichever comes first.
1511

aurora-resources-protected-by-backup-plan

To help with data back-up processes, ensure your Amazon Aurora resources are a part of an AWS Backup plan. AWS Backup is a fully managed backup service with a policy-based backup solution. This solution simplifies your backup management and enables you to meet your business and regulatory backup compliance requirements.
1511

backup-plan-min-frequency-and-min-retention-check

To help with data back-up processes, ensure your AWS Backup plan is set for a minimum frequency and retention. AWS Backup is a fully managed backup service with a policy-based backup solution. This solution simplifies your backup management and enables you to meet your business and regulatory backup compliance requirements. This rule allows you to set the requiredFrequencyValue (Config default: 1), requiredRetentionDays (Config default: 35) and requiredFrequencyUnit (Config default: days) parameters. The actual value should reflect your organizations requirements.
1511

backup-recovery-point-minimum-retention-check

To help with data back-up processes, ensure your AWS Backup recovery points have a minimum retention period set. AWS Backup is a fully managed backup service with a policy-based backup solution. This solution simplifies your backup management and enables you to meet your business and regulatory backup compliance requirements. This rule allows you to set the requiredRetentionDays (config default: 35) parameter. The actual value should reflect your organizations requirements.
1511

ec2-resources-protected-by-backup-plan

To help with data back-up processes, ensure your Amazon Elastic Compute Cloud (Amazon EC2) resources are a part of an AWS Backup plan. AWS Backup is a fully managed backup service with a policy-based backup solution. This solution simplifies your backup management and enables you to meet your business and regulatory backup compliance requirements.
1511

fsx-resources-protected-by-backup-plan

To help with data back-up processes, ensure your Amazon FSx file systems are a part of an AWS Backup plan. AWS Backup is a fully managed backup service with a policy-based backup solution. This solution simplifies your backup management and enables you to meet your business and regulatory backup compliance requirements.
1512

ebs-snapshot-public-restorable-check

Manage access to the AWS Cloud by ensuring EBS snapshots are not publicly restorable. EBS volume snapshots can contain sensitive information and access control is required for such accounts.
1512

rds-snapshots-public-prohibited

Manage access to resources in the AWS Cloud by ensuring that Amazon Relational Database Service (Amazon RDS) instances are not public. Amazon RDS database instances can contain sensitive information and principles and access control is required for such accounts.
1513

s3-bucket-replication-enabled

Amazon Simple Storage Service (Amazon S3) Cross-Region Replication (CRR) supports maintaining adequate capacity and availability. CRR enables automatic, asynchronous copying of objects across Amazon S3 buckets to help ensure that data availability is maintained.
1528

ec2-instance-no-public-ip

Manage access to the AWS Cloud by ensuring Amazon Elastic Compute Cloud (Amazon EC2) instances cannot be publicly accessed. Amazon EC2 instances can contain sensitive information and access control is required for such accounts.
1528

elasticsearch-in-vpc-only

Manage access to the AWS Cloud by ensuring Amazon OpenSearch Service (OpenSearch Service) Domains are within an Amazon Virtual Private Cloud (Amazon VPC). An OpenSearch Service domain within an Amazon VPC enables secure communication between OpenSearch Service and other services within the Amazon VPC without the need for an internet gateway, NAT device, or VPN connection.
1528

emr-master-no-public-ip

Manage access to the AWS Cloud by ensuring Amazon EMR cluster master nodes cannot be publicly accessed. Amazon EMR cluster master nodes can contain sensitive information and access control is required for such accounts.
1528

redshift-cluster-public-access-check

Manage access to resources in the AWS Cloud by ensuring that Amazon Redshift clusters are not public. Amazon Redshift clusters can contain sensitive information and principles and access control is required for such accounts.
1528

s3-account-level-public-access-blocks-periodic

Manage access to resources in the AWS Cloud by ensuring that Amazon Simple Storage Service (Amazon S3) buckets cannot be publicly accessed. This rule helps keeping sensitive data safe from unauthorized remote users by preventing public access. This rule allows you to optionally set the ignorePublicAcls (Config Default: True), blockPublicPolicy (Config Default: True), blockPublicAcls (Config Default: True), and restrictPublicBuckets parameters (Config Default: True). The actual values should reflect your organization's policies.
1528

s3-bucket-default-lock-enabled

Ensure that your Amazon Simple Storage Service (Amazon S3) bucket has lock enabled, by default. Because sensitive data can exist at rest in S3 buckets, enforce object locks at rest to help protect that data.
1528

s3-bucket-public-read-prohibited

Manage access to resources in the AWS Cloud by only allowing authorized users, processes, and devices access to Amazon Simple Storage Service (Amazon S3) buckets. The management of access should be consistent with the classification of the data.
1528

s3-bucket-public-write-prohibited

Manage access to resources in the AWS Cloud by only allowing authorized users, processes, and devices access to Amazon Simple Storage Service (Amazon S3) buckets. The management of access should be consistent with the classification of the data.
1528

sagemaker-notebook-no-direct-internet-access

Manage access to resources in the AWS Cloud by ensuring that Amazon SageMaker notebooks do not allow direct internet access. By preventing direct internet access, you can keep sensitive data from being accessed by unauthorized users.
1528

vpc-default-security-group-closed

Amazon Elastic Compute Cloud (Amazon EC2) security groups can help in the management of network access by providing stateful filtering of ingress and egress network traffic to AWS resources. Restricting all the traffic on the default security group helps in restricting remote access to your AWS resources.
1528

dms-replication-not-public

Manage access to the AWS Cloud by ensuring DMS replication instances cannot be publicly accessed. DMS replication instances can contain sensitive information and access control is required for such accounts.
1528

ec2-instances-in-vpc

Deploy Amazon Elastic Compute Cloud (Amazon EC2) instances within an Amazon Virtual Private Cloud (Amazon VPC) to enable secure communication between an instance and other services within the amazon VPC, without requiring an internet gateway, NAT device, or VPN connection. All traffic remains securely within the AWS Cloud. Because of their logical isolation, domains that reside within an Amazon VPC have an extra layer of security when compared to domains that use public endpoints. Assign Amazon EC2 instances to an Amazon VPC to properly manage access.
1528

lambda-function-public-access-prohibited

Manage access to resources in the AWS Cloud by ensuring AWS Lambda functions cannot be publicly accessed. Public access can potentially lead to degradation of availability of resources.
1528

no-unrestricted-route-to-igw

Ensure Amazon EC2 route tables do not have unrestricted routes to an internet gateway. Removing or limiting the access to the internet for workloads within Amazon VPCs can reduce unintended access within your environment.
1528

s3-bucket-level-public-access-prohibited

Manage access to resources in the AWS Cloud by ensuring that Amazon Simple Storage Service (Amazon S3) buckets cannot be publicly accessed. This rule helps keeping sensitive data safe from unauthorized remote users by preventing public access at the bucket level.
1528

subnet-auto-assign-public-ip-disabled

Manage access to the AWS Cloud by ensuring Amazon Virtual Private Cloud (VPC) subnets are not automatically assigned a public IP address. Amazon Elastic Compute Cloud (EC2) instances that are launched into subnets that have this attribute enabled have a public IP address assigned to their primary network interface.
1528

autoscaling-launch-config-public-ip-disabled

If you configure your Network Interfaces with a public IP address, then the associated resources to those Network Interfaces are reachable from the internet. EC2 resources should not be publicly accessible, as this may allow unintended access to your applications or servers.
1528

s3-account-level-public-access-blocks-periodic

Manage access to resources in the AWS Cloud by ensuring that Amazon Simple Storage Service (Amazon S3) buckets cannot be publicly accessed. This rule helps keeping sensitive data safe from unauthorized remote users by preventing public access. This rule allows you to optionally set the ignorePublicAcls (Config Default: True), blockPublicPolicy (Config Default: True), blockPublicAcls (Config Default: True), and restrictPublicBuckets parameters (Config Default: True). The actual values should reflect your organization's policies.
1528

ssm-document-not-public

Ensure AWS Systems Manager (SSM) documents are not public, as this may allow unintended access to your SSM documents. A public SSM document can expose information about your account, resources and internal processes.
1536

cloudtrail-s3-dataevents-enabled

The collection of Simple Storage Service (Amazon S3) data events helps in detecting any anomalous activity. The details include AWS account information that accessed an Amazon S3 bucket, IP address, and time of event.
1537

rds-logging-enabled

To help with logging and monitoring within your environment, ensure Amazon Relational Database Service (Amazon RDS) logging is enabled. With Amazon RDS logging, you can capture events such as connections, disconnections, queries, or tables queried.
1537

redshift-cluster-configuration-check

To protect data at rest, ensure that encryption is enabled for your Amazon Redshift clusters. You must also ensure that required configurations are deployed on Amazon Redshift clusters. The audit logging should be enabled to provide information about connections and user activities in the database. This rule requires that a value is set for clusterDbEncrypted (Config Default : TRUE), and loggingEnabled (Config Default: TRUE). The actual values should reflect your organization's policies.
1552

acm-certificate-expiration-check

Ensure network integrity is protected by ensuring X509 certificates are issued by AWS ACM. These certificates must be valid and unexpired. This rule requires a value for daysToExpiration (AWS Foundational Security Best Practices value: 90). The actual value should reflect your organization's policies.
1552

alb-http-to-https-redirection-check

To help protect data in transit, ensure that your Application Load Balancer automatically redirects unencrypted HTTP requests to HTTPS. Because sensitive data can exist, enable encryption in transit to help protect that data.
1552

elb-acm-certificate-required

Because sensitive data can exist and to help protect data at transit, ensure encryption is enabled for your Elastic Load Balancing. Use AWS Certificate Manager to manage, provision and deploy public and private SSL/TLS certificates with AWS services and internal resources.
1552

elb-tls-https-listeners-only

Ensure that your Elastic Load Balancers (ELBs) are configured with SSL or HTTPS listeners. Because sensitive data can exist, enable encryption in transit to help protect that data.
1552

elbv2-acm-certificate-required

Because sensitive data can exist and to help protect data at transit, ensure encryption is enabled for your Elastic Load Balancing. Use AWS Certificate Manager to manage, provision and deploy public and private SSL/TLS certificates with AWS services and internal resources.
1579

dynamodb-autoscaling-enabled

Amazon DynamoDB auto scaling uses the AWS Application Auto Scaling service to adjust provisioned throughput capacity that automatically responds to actual traffic patterns. This enables a table or a global secondary index to increase its provisioned read/write capacity to handle sudden increases in traffic, without throttling.
1580

elb-cross-zone-load-balancing-enabled

Enable cross-zone load balancing for your Elastic Load Balancers (ELBs) to help maintain adequate capacity and availability. The cross-zone load balancing reduces the need to maintain equivalent numbers of instances in each enabled availability zone. It also improves your application's ability to handle the loss of one or more instances.
1580

rds-multi-az-support

Multi-AZ support in Amazon Relational Database Service (Amazon RDS) provides enhanced availability and durability for database instances. When you provision a Multi-AZ database instance, Amazon RDS automatically creates a primary database instance, and synchronously replicates the data to a standby instance in a different Availability Zone. Each Availability Zone runs on its own physically distinct, independent infrastructure, and is engineered to be highly reliable. In case of an infrastructure failure, Amazon RDS performs an automatic failover to the standby so that you can resume database operations as soon as the failover is complete.
1580

rds-cluster-multi-az-enabled

Amazon Relational Database Service (Amazon RDS) clusters should have Multi-AZ replication enabled to assist in the availability of the data that is stored. Each Availability Zone runs on its own physically distinct, independent infrastructure, and is engineered to be highly reliable. In case of an infrastructure failure, Amazon RDS performs an automatic failover to the standby so that you can resume database operations as soon as the failover is complete.
P1

rds-cluster-deletion-protection-enabled

Ensure Amazon Relational Database Service (Amazon RDS) instances have deletion protection enabled. Use deletion protection to prevent your Amazon RDS instances from being accidentally or maliciously deleted, which can lead to loss of availability for your applications.
P1

rds-instance-deletion-protection-enabled

Ensure Amazon Relational Database Service (Amazon RDS) instances have deletion protection enabled. Use deletion protection to prevent your Amazon RDS instances from being accidentally or maliciously deleted, which can lead to loss of availability for your applications.
P3

ec2-imdsv2-check

Ensure the Instance Metadata Service Version 2 (IMDSv2) method is enabled to help protect access and control of Amazon Elastic Compute Cloud (Amazon EC2) instance metadata. The IMDSv2 method uses session-based controls. With IMDSv2, controls can be implemented to restrict changes to instance metadata.
P5

securityhub-enabled

AWS Security Hub helps to monitor unauthorized personnel, connections, devices, and software. AWS Security Hub aggregates, organizes, and prioritizes the security alerts, or findings, from multiple AWS services. Some such services are Amazon Security Hub, Amazon Inspector, Amazon Macie, AWS Identity and Access Management (IAM) Access Analyzer, and AWS Firewall Manager, and AWS Partner solutions.
P7

elasticsearch-node-to-node-encryption-check

Ensure node-to-node encryption for Amazon OpenSearch Service is enabled. Node-to-node encryption enables TLS 1.2 encryption for all communications within the Amazon Virtual Private Cloud (Amazon VPC). Because sensitive data can exist, enable encryption in transit to help protect that data.
P7

s3-bucket-ssl-requests-only

To help protect data in transit, ensure that your Amazon Simple Storage Service (Amazon S3) buckets require requests to use Secure Socket Layer (SSL). Because sensitive data can exist, enable encryption in transit to help protect that data.
P8

s3-bucket-logging-enabled

Amazon Simple Storage Service (Amazon S3) server access logging provides a method to monitor the network for potential cybersecurity events. The events are monitored by capturing detailed records for the requests that are made to an Amazon S3 bucket. Each access log record provides details about a single access request. The details include the requester, bucket name, request time, request action, response status, and an error code, if relevant.
P9

aurora-resources-protected-by-backup-plan

To help with data back-up processes, ensure your Amazon Aurora resources are a part of an AWS Backup plan. AWS Backup is a fully managed backup service with a policy-based backup solution. This solution simplifies your backup management and enables you to meet your business and regulatory backup compliance requirements.
P9

backup-plan-min-frequency-and-min-retention-check

To help with data back-up processes, ensure your AWS Backup plan is set for a minimum frequency and retention. AWS Backup is a fully managed backup service with a policy-based backup solution. This solution simplifies your backup management and enables you to meet your business and regulatory backup compliance requirements. This rule allows you to set the requiredFrequencyValue (Config default: 1), requiredRetentionDays (Config default: 35) and requiredFrequencyUnit (Config default: days) parameters. The actual value should reflect your organizations requirements.
P9

backup-recovery-point-encrypted

Ensure that encryption is enabled for your AWS Backup recovery points. Because sensitive data can exist at rest, enable encryption at rest to help protect that data.
P9

backup-recovery-point-manual-deletion-disabled

Ensure that your AWS Backup recovery points have an attached resource-based policy which prevents deletion of recovery points. Using a resource-based policy to prevent deletion of recovery points can assist in preventing accidental or intentional deletion.
P9

backup-recovery-point-minimum-retention-check

To help with data back-up processes, ensure your AWS Backup recovery points have a minimum retention period set. AWS Backup is a fully managed backup service with a policy-based backup solution. This solution simplifies your backup management and enables you to meet your business and regulatory backup compliance requirements. This rule allows you to set the requiredRetentionDays (config default: 35) parameter. The actual value should reflect your organizations requirements.
P9

db-instance-backup-enabled

The backup feature of Amazon RDS creates backups of your databases and transaction logs. Amazon RDS automatically creates a storage volume snapshot of your DB instance, backing up the entire DB instance. The system allows you to set specific retention periods to meet your resilience requirements.
P9

dynamodb-in-backup-plan

To help with data back-up processes, ensure your Amazon DynamoDB tables are a part of an AWS Backup plan. AWS Backup is a fully managed backup service with a policy-based backup solution. This solution simplifies your backup management and enables you to meet your business and regulatory backup compliance requirements.
P9

ebs-in-backup-plan

To help with data back-up processes, ensure your Amazon Elastic Block Store (Amazon EBS) volumes are a part of an AWS Backup plan. AWS Backup is a fully managed backup service with a policy-based backup solution. This solution simplifies your backup management and enables you to meet your business and regulatory backup compliance requirements.
P9

ec2-resources-protected-by-backup-plan

To help with data back-up processes, ensure your Amazon Elastic Compute Cloud (Amazon EC2) resources are a part of an AWS Backup plan. AWS Backup is a fully managed backup service with a policy-based backup solution. This solution simplifies your backup management and enables you to meet your business and regulatory backup compliance requirements.
P9

efs-in-backup-plan

To help with data back-up processes, ensure your Amazon Elastic File System (Amazon EFS) file systems are a part of an AWS Backup plan. AWS Backup is a fully managed backup service with a policy-based backup solution. This solution simplifies your backup management and enables you to meet your business and regulatory backup compliance requirements.
P9

elasticache-redis-cluster-automatic-backup-check

When automatic backups are enabled, Amazon ElastiCache creates a backup of the cluster on a daily basis. The backup can be retained for a number of days as specified by your organization. Automatic backups can help guard against data loss. If a failure occurs, you can create a new cluster, which restores your data from the most recent backup.
P9

fsx-resources-protected-by-backup-plan

To help with data back-up processes, ensure your Amazon FSx file systems are a part of an AWS Backup plan. AWS Backup is a fully managed backup service with a policy-based backup solution. This solution simplifies your backup management and enables you to meet your business and regulatory backup compliance requirements.
P9

rds-in-backup-plan

To help with data back-up processes, ensure your Amazon Relational Database Service (Amazon RDS) instances are a part of an AWS Backup plan. AWS Backup is a fully managed backup service with a policy-based backup solution. This solution simplifies your backup management and enables you to meet your business and regulatory backup compliance requirements.
P9

rds-resources-protected-by-backup-plan

To help with data back-up processes, ensure your Amazon Relational Database Service (Amazon RDS) resources are a part of an AWS Backup plan. AWS Backup is a fully managed backup service with a policy-based backup solution. This solution simplifies your backup management and enables you to meet your business and regulatory backup compliance requirements.
P9

redshift-backup-enabled

To help with data back-up processes, ensure your Amazon Redshift clusters have automated snapshots. When automated snapshots are enabled for a cluster, Redshift periodically takes snapshots of that cluster. By default, Redshift takes a snapshot every eight hours or every 5 GB per node of data changes, or whichever comes first.
P10

iam-policy-no-statements-with-admin-access

AWS Identity and Access Management (IAM) can help you incorporate the principles of least privilege and separation of duties with access permissions and authorizations, restricting policies from containing "Effect": "Allow" with "Action": "*" over "Resource": "*". Allowing users to have more privileges than needed to complete a task may violate the principle of least privilege and separation of duties.
P10

iam-no-inline-policy-check

Ensure an AWS Identity and Access Management (IAM) user, IAM role or IAM group does not have an inline policy to control access to systems and assets. AWS recommends to use managed policies instead of inline policies. The managed policies allow reusability, versioning and rolling back, and delegating permissions management.
P10

iam-customer-policy-blocked-kms-actions

AWS Identity and Access Management (IAM) can help you incorporate the principles of least privilege and separation of duties with access permissions and authorizations, restricting policies from containing blocked actions on all AWS Key Management Service keys. Having more privileges than needed to complete a task may violate the principle of least privilege and separation of duties. This rule allows you to set the blockedActionsPatterns parameter. (AWS Foundational Security Best Practices value: kms:Decrypt, kms:ReEncryptFrom). The actual values should reflect your organization's policies
P10

iam-inline-policy-blocked-kms-actions

Ensure an AWS Identity and Access Management (IAM) user, IAM role or IAM group does not have an inline policy to allow blocked actions on all AWS Key Management Service keys. AWS recommends to use managed policies instead of inline policies. The managed policies allow reusability, versioning, rolling back, and delegating permissions management. This rule allows you to set the blockedActionsPatterns parameter. (AWS Foundational Security Best Practices value: kms:Decrypt, kms:ReEncryptFrom). The actual values should reflect your organization's policies.
P10

iam-policy-no-statements-with-full-access

Ensure IAM Actions are restricted to only those actions that are needed. Allowing users to have more privileges than needed to complete a task may violate the principle of least privilege and separation of duties.
P11

iam-user-group-membership-check

AWS Identity and Access Management (IAM) can help you restrict access permissions and authorizations, by ensuring IAM users are members of at least one group. Allowing users more privileges than needed to complete a task may violate the principle of least privilege and separation of duties.

Template

The template is available on GitHub: Operational Best Practices for ACSC ISM.