CCI-002397

Prevent split tunneling for remote devices connecting to organizational systems unless the split tunnel is securely provisioned using organization-defined safeguards.

Implementation Guidance

The organization being inspected/assessed configures the information system to prevent the device from simultaneously establishing non-remote connections with the system and communicating via some other connection to resources in external networks. For information system components that have applicable STIGs or SRGs, the organization being inspected/assessed must comply with the STIG/SRG guidance that pertains to CCI 2397.

Validation Procedures

The organization conducting the inspection/assessment examines the information system to ensure the organization being inspected/assessed configures the information system to prevent the device from simultaneously establishing non-remote connections with the system and communicating via some other connection to resources in external networks. For information system components that have applicable STIGs or SRGs, the organization conducting the inspection/assessment evaluates the components to ensure that the organization being inspected/assessed has configured the information system in compliance with the applicable STIGs and SRGs pertaining to CCI 2397.

Compelling Evidence

1.) Current Network diagram. 2.) Applicable STIG/SRG checks.

The controls below (if any) were marked by NIST as being related to CCI-002397.