Overview
  1. 03.01: Access Control
  2. 03.02: Awareness and Training
  3. 03.03: Audit and Accountability
  4. 03.04: Configuration Management
  5. 03.05: Identification and Authentication
  6. 03.06: Incident Response
  7. 03.07: Maintenance
  8. 03.08: Media Protection
  9. 03.09: Personnel Security
  10. 03.10: Physical Protection
  11. 03.11: Risk Assessment
  12. 03.12: Security Assessment and Monitoring
  13. 03.13: System and Communications Protection
  14. 03.14: System and Information Integrity
  15. 03.15: Planning
  16. 03.16: System and Services Acquisition
  17. 03.17: Supply Chain Risk Management

Security Requirements for 03.13.06 Network Communications – Deny by Default – Allow by Exception

This requirement applies to inbound and outbound network communications traffic at the system boundary and at identified points within the system. A deny-all, allow-by-exception network communications traffic policy ensures that only essential and approved connections are allowed.

Evidence

  1. 03.13.06

    Deny network communications traffic by default, and allow network communications traffic by exception.