UK Cyber Essentials
Firewalls

UK Cyber Essentials CE-FW.5: Remove or Disable Unused Rules

Remove or disable permissive firewall rules promptly when no longer required to limit attack surface.

What else in your programme already covers this

This control maps to 23 controls across 15 other frameworks. If you already hold one of them, the evidence you collected for it is the starting point here rather than new work.

FedRAMP High · 3 controls

  • CM-7(1) Periodic Review
  • SC-7(4) External Telecommunications Services
  • SC-7(5) Deny by Default Allow by Exception

FedRAMP Moderate · 3 controls

  • CM-7(1) Periodic Review
  • SC-7(4) External Telecommunications Services
  • SC-7(5) Deny by Default Allow by Exception
  • AM-3 Ensure security of asset lifecycle management
  • ASBv3-NS-7 Simplify network security configuration

C5 (Germany) · 2 controls

  • C5-COS-03 Monitoring of connections in the Cloud Service Provider's network
  • C5-COS-04 Cross-network access

NIST SP 800-171 Rev 3 · 2 controls

  • 03.04.06 Least Functionality
  • 03.13.06 Network Communications - Deny by Default - Allow by Exception

PCI DSS 4.0 · 2 controls

  • 1.2.7 NSC rule sets reviewed every six months
  • 1.3.1 Inbound traffic to CDE restricted
  • SEC05-BP02 Control traffic flow within your network layers

CMMC 2.0 · 1 control

ISO 27001:2022 · 1 control

  • 8.20 Networks security

ISO 27002:2022 · 1 control

  • 8.20 Networks security

Every mapping shown was judged rather than inferred from wording similarity, and the ones that failed review are published too. See the coverage reports and what was rejected.

Other controls in Firewalls

You are reading one control. How much of UK Cyber Essentials have you already done?

UK Cyber Essentials CE-FW.5 is one control. If you already hold one of the frameworks below, a reviewed crosswalk already says how much of UK Cyber Essentials your existing evidence covers. Hold FedRAMP Moderate and 29 of 36 UK Cyber Essentials controls already carry evidence.

Each report names every control your existing framework evidences, every one it does not, the reasoning behind each claim, and the claims that were argued against and rejected. 0 were rejected on the FedRAMP Moderate pair alone.

Query this from an agent

The graph holds this control, the 23 it maps to, and the evidence behind each claim, over MCP and REST.