Security - Automated Security Response on AWS

Security

When you build systems on AWS infrastructure, security responsibilities are shared between you and AWS. This shared model reduces your operational burden because AWS operates, manages, and controls the components including the host operating system, the virtualization layer, and the physical security of the facilities in which the services operate. For more information about AWS security, visit the AWS Cloud Security.

IAM roles

AWS Identity and Access Management (IAM) roles allow customers to assign granular access policies and permissions to services and users in the AWS Cloud. This solution creates IAM roles that grant the solution’s automated functions access to perform remediation actions within a narrow scope set of permissions specific to each remediation.

The admin account’s Step Function is assigned to the SO0111-SHARR-Orchestrator-Admin role. Only this role is allowed to assume the SO0111- Orchestrator-Member in each member account. The member role is allowed by each remediation role to pass it to the AWS Systems Manager service to run specific remediation runbooks. Remediation role names begin with SO0111, followed by a description matching the name of the remediation runbook. For example, SO0111- RemoveVPCDefaultSecurityGroupRules is the role for the SHARR_ RemoveVPCDefaultSecurityGroupRules remediation runbook.