CCI-001126

Prevent systems from entering unsecure states in the event of an operational failure of a boundary protection device.

Implementation Guidance

The organization being inspected/assessed configures the information system to fail securely in the event of an operational failure of a boundary protection device. 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 1126.

Validation Procedures

The organization conducting the inspection/assessment examines the information system to ensure the organization being inspected/assessed configures the information system to fail securely in the event of an operational failure of a boundary protection device. 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 1126.

Compelling Evidence

1.) Organization configuration documentation for the information system to prevent discovery of specific system components composing a managed interface. 2.) Applicable STIG/SRG checks.

The controls below (if any) were marked by NIST as being related to CCI-001126.