CA-9—Internal System Connections
>Control Description
Authorize internal connections of ⚙organization-defined system components or classes of components to the system;
Document, for each internal connection, the interface characteristics, security and privacy requirements, and the nature of the information communicated;
Terminate internal system connections after ⚙organization-defined conditions; and
Review ⚙organization-defined frequency the continued need for each internal connection.
>FedRAMP Baseline Requirements
Parameter Values
>Discussion
Internal system connections are connections between organizational systems and separate constituent system components (i.e., connections between components that are part of the same system) including components used for system development. Intra-system connections include connections with mobile devices, notebook and desktop computers, tablets, printers, copiers, facsimile machines, scanners, sensors, and servers. Instead of authorizing each internal system connection individually, organizations can authorize internal connections for a class of system components with common characteristics and/or configurations, including printers, scanners, and copiers with a specified processing, transmission, and storage capability or smart phones and tablets with a specific baseline configuration.
The continued need for an internal system connection is reviewed from the perspective of whether it provides support for organizational missions or business functions.
>Cross-Framework Mappings
>Programmatic Queries
Related Services
CLI Commands
aws ec2 describe-vpc-peering-connections --query 'VpcPeeringConnections[*].{Id:VpcPeeringConnectionId,Status:Status.Code,Requester:RequesterVpcInfo.VpcId,Accepter:AccepterVpcInfo.VpcId}'aws ec2 describe-transit-gateway-attachmentsaws ec2 describe-vpc-endpoints --query 'VpcEndpoints[*].{Id:VpcEndpointId,Service:ServiceName,Type:VpcEndpointType}'aws ec2 describe-vpc-endpoint-services --query 'ServiceDetails[*].{Name:ServiceName,Type:ServiceType}'>Assessment Interview Topics
Questions assessors commonly ask
Process & Governance:
- •What formal policies and procedures govern the implementation of CA-9 (Internal System Connections)?
- •Who are the designated roles responsible for implementing, maintaining, and monitoring CA-9?
- •How frequently is the CA-9 policy reviewed and updated, and what triggers policy changes?
- •What training or awareness programs ensure personnel understand their responsibilities related to CA-9?
Technical Implementation:
- •Describe the specific technical mechanisms or controls used to enforce CA-9 requirements.
- •What automated tools, systems, or technologies are deployed to implement CA-9?
- •How is CA-9 integrated into your system architecture and overall security posture?
- •What configuration settings, parameters, or technical specifications enforce CA-9 requirements?
Evidence & Documentation:
- •What documentation demonstrates the complete implementation of CA-9?
- •What audit logs, records, reports, or monitoring data validate CA-9 compliance?
- •Can you provide evidence of periodic reviews, assessments, or testing of CA-9 effectiveness?
- •What artifacts would you present during a FedRAMP assessment to demonstrate CA-9 compliance?
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