AWS Security Hub: Centralized Security Management for Multi-Account Environments
AWS Security Hub is a powerful cloud security posture management service that provides organizations with a comprehensive view of their security state across multiple AWS accounts. This service integrates seamlessly with AWS Organizations, allowing for efficient management of security findings, automated checks, and compliance monitoring at scale.
Key Features and Benefits
Centralized Security Management: Security Hub aggregates security findings from various AWS services and third-party tools into a single, standardized format.
Automated Security Checks: The service performs continuous, automated security best practice checks against your AWS resources.
Compliance Monitoring: Security Hub helps assess your AWS environment against industry standards and regulatory frameworks such as CIS, PCI DSS, and NIST.
Multi-Account Support: Seamlessly integrate with AWS Organizations to manage security across all accounts in your organization.
How It Works
Let's walk through an example of how Security Hub can be set up and used in a multi-account environment:
Enable Security Hub: First, enable Security Hub in your organization's management account or a designated Security Hub administrator account.
Configure AWS Organizations Integration: Use AWS Organizations to automatically enable Security Hub across all accounts in your organization.
aws securityhub enable-organization-admin-account --admin-account-id 123456789012
Set Up Cross-Region Aggregation: Configure a central aggregation region to collect findings from all enabled regions.
aws securityhub update-organization-configuration --auto-enable --auto-enable-standards DEFAULT
Review Findings: Access the Security Hub console to view aggregated findings, security scores, and compliance status across all accounts.
Take Action: Use automation rules or integrate with other AWS services like AWS Lambda to remediate security issues automatically.
Moving from left to right in the image:
AWS Security Hub quickly assesses high-priority security alerts and security posture across all accounts and regions.
Integrated APN solutions, including Amazon GuardDuty, AWS Config, Amazon Inspector, AWS Firewall Manager, AWS Systems Manager, AWS IAM Access Analyzer, AWS Health, and Amazon Macie, are utilized.
Findings from AWS and partner security services are continuously aggregated and prioritized, highlighting emerging trends or possible issues.
Automated security checks are conducted, running best practice configuration checks with AWS Foundational Security Best Practices and other industry benchmarks like CIS and PCI.
Action is taken by investigating findings and/or implementing response and remediation actions.
Best Practices
To maximize the benefits of Security Hub in a multi-account setup:
Designate a central security account as the Security Hub administrator.
Enable Security Hub in all regions where you operate AWS resources.
Regularly review and update your security standards and automated checks.
Leverage integration with other AWS services like Amazon EventBridge for automated remediation.
By implementing AWS Security Hub across your organization, you can significantly enhance your security posture, streamline compliance efforts, and reduce the complexity of managing security in a multi-account AWS environment.
