UK Cyber Essentials
Firewalls

UK Cyber Essentials CE-FW.4: Approve and Document Inbound Rules

Every inbound firewall rule that permits traffic must be approved and documented by an authorised individual with documented business need.

What else in your programme already covers this

This control maps to 47 controls across 19 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 · 5 controls

  • CM-3 Configuration Change Control
  • CM-7 Least Functionality
  • SC-7 Boundary Protection
  • SC-7(4) External Telecommunications Services
  • SC-7(5) Deny by Default Allow by Exception

FedRAMP Moderate · 5 controls

  • CM-3 Configuration Change Control
  • CM-7 Least Functionality
  • SC-7 Boundary Protection
  • SC-7(4) External Telecommunications Services
  • SC-7(5) Deny by Default Allow by Exception
  • ASBv3-GS-4 Define and implement network security strategy
  • ASBv3-NS-8 Detect and disable insecure services and protocols
  • NS-2 Secure cloud services with network controls
  • NS-3 Deploy firewall at the edge of enterprise network

PCI DSS 4.0 · 4 controls

  • 1.2.2 Changes to NSC reviewed and approved
  • 1.2.5 Services, protocols, ports inventoried and justified
  • 1.3.1 Inbound traffic to CDE restricted
  • 1.4.2 Inbound traffic from untrusted networks restricted

C5 (Germany) · 3 controls

  • C5-COS-02 Security requirements for connections in the Cloud Service Provider's network
  • C5-COS-03 Monitoring of connections in the Cloud Service Provider's network
  • C5-COS-04 Cross-network access

CMMC 2.0 · 3 controls

NIST SP 800-171 Rev 3 · 3 controls

  • 03.04.03 Configuration Change Control
  • 03.13.01 Boundary Protection
  • 03.13.06 Network Communications - Deny by Default - Allow by Exception
  • CM-3 Configuration Change Control
  • CM-7 Least Functionality
  • SC-7 Boundary Protection
  • CM-3 Configuration Change Control
  • CM-7 Least Functionality
  • SC-7 Boundary Protection

ISO 27001:2022 · 2 controls

  • 8.20 Networks security
  • 8.21 Security of network services

ISO 27002:2022 · 2 controls

  • 8.20 Networks security
  • 8.21 Security of network services

NIST SP 800-53 Rev 5 · 2 controls

  • CM-7 Least Functionality
  • SC-7 Boundary Protection
  • ANSSI-HYG-25 Secure Dedicated Network Interconnections with Partners
  • SEC05-BP02 Control traffic flow within your network layers

CIS Controls v8 · 1 control

  • CIS-4.2 Establish and Maintain a Secure Configuration Process for Network Infrastructure
  • NIST-CSF-PR.IR-01 Networks and environments are protected from unauthorized logical access and usage

SOC 2 · 1 control

  • SOC2-CC6.6 Measures against threats outside system boundaries are implemented

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.4 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 47 it maps to, and the evidence behind each claim, over MCP and REST.