ISO 27001:2022
Technological controls – ISO 27001:2022

ISO 27001:2022 8.21: Security of network services

For each network service, the organization is to identify, put in place and monitor the security mechanisms, the service levels and the requirements that apply. Purpose (stated in ISO/IEC 27002:2022): keeps the use of network services secure. As an Annex A reference control, it is compared with the controls determined in risk treatment (6.1.3 c) and recorded in the Statement of Applicability as included or excluded, with the justification and implementation status (6.1.3 d); implementation guidance is ISO/IEC 27002:2022 8.21.

Maintained by Gerard BlokdykVerified against the published standard Control text last updated

What else in your programme already covers this

This control maps to 84 controls across 26 other frameworks. If you already hold one of them, the evidence you collected for it is the starting point here rather than new work.

CIS Controls v8 · 9 controls

  • CIS-12.1 Ensure Network Infrastructure is Up-to-Date
  • CIS-12.2 Establish and Maintain a Secure Network Architecture
  • CIS-12.3 Securely Manage Network Infrastructure
  • CIS-12.5 Centralize Network Authentication, Authorization, and Auditing (AAA)
  • CIS-12.6 Use of Secure Network Management and Communication Protocols
  • CIS-13.10 Perform Application Layer Filtering
  • CIS-13.4 Perform Traffic Filtering Between Network Segments
  • CIS-13.6 Collect Network Traffic Flow Logs
  • CIS-9.5 Implement DMARC

NIST SP 800-53 Rev 5 · 9 controls

FedRAMP High · 8 controls

  • AC-17 Remote Access
  • AC-18 Wireless Access
  • IA-3 Device Identification and Authentication
  • SA-9 External System Services
  • SC-20 Secure Name/Address Resolution Service (Authoritative)
  • SC-23 Session Authenticity
  • SC-7 Boundary Protection
  • SC-8 Transmission Confidentiality and Integrity

FedRAMP Moderate · 8 controls

  • AC-17 Remote Access
  • AC-18 Wireless Access
  • IA-3 Device Identification and Authentication
  • SA-9 External System Services
  • SC-20 Secure Name/Address Resolution Service (Authoritative)
  • SC-23 Session Authenticity
  • SC-7 Boundary Protection
  • SC-8 Transmission Confidentiality and Integrity

PCI DSS 4.0 · 7 controls

  • 1.2.5 1.2.5 Allowed services, protocols and ports justified
  • 1.2.6 1.2.6 Security features for insecure services in use
  • 1.3.1 1.3.1 Inbound CDE traffic restricted
  • 1.3.2 1.3.2 Outbound CDE traffic restricted
  • 1.4.1 1.4.1 NSCs between trusted and untrusted networks
  • 1.4.5 1.4.5 Internal IP and routing disclosure limited
  • 2.2.5 2.2.5 Insecure services, protocols or daemons secured

SOC 2 · 6 controls

  • SOC2-CC5.2 CC5.2 General controls over technology (COSO principle 11)
  • SOC2-CC6.1 CC6.1 Logical access security over protected information assets
  • SOC2-CC6.6 CC6.6 Protection against threats from outside the system boundary
  • SOC2-CC6.7 CC6.7 Restricting and protecting information in transmission, movement and removal
  • SOC2-CC7.1 CC7.1 Detecting configuration changes and new vulnerabilities
  • SOC2-CC7.2 CC7.2 Monitoring system components for anomalies

CMMC 2.0 · 5 controls

Azure Security Benchmark · 4 controls

  • ASBv3-NS-10 Ensure Domain Name System (DNS) security
  • ASBv3-NS-9 Connect on-premises or cloud network privately
  • NS-2 Secure cloud services with network controls
  • NS-5 Deploy DDOS protection

ANSSI Guide d'hygiene informatique (42 mesures, v2.0) · 3 controls

  • ANSSI-HYG-20 Secure Wi-Fi Access Networks and Separate Usage
  • ANSSI-HYG-21 Use Secure Protocols Wherever They Exist
  • ANSSI-HYG-25 Secure Dedicated Network Interconnections with Partners

NIST Cybersecurity Framework 2.0 · 3 controls

  • NIST-CSF-DE.CM-01 Networks and network services are monitored to find potentially adverse events
  • NIST-CSF-PR.DS-02 The confidentiality, integrity, and availability of data-in-transit are protected
  • NIST-CSF-PR.IR-01 Networks and environments are protected from unauthorized logical access and usage

NIST SP 800-171 Rev 3 · 3 controls

  • 03.13.01 Boundary Protection
  • 03.13.06 Network Communications - Deny by Default - Allow by Exception
  • 03.16.03 External System Services

AWS Well-Architected Security Pillar · 2 controls

C5 (Germany) · 2 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

Cloud Security Alliance Cloud Controls Matrix (CCM) v4.0.1 · 2 controls

ISO 27002:2022 · 2 controls

  • 8.20 Networks security
  • 8.21 Security of network services

ASD Strategies to Mitigate Cyber Security Incidents · 1 control

  • ASD37-10 Server application hardening (Very Good)

Australia Consumer Data Right - Banking (CDR) · 1 control

  • AUCDR-IS-2 Secure the network and systems within the data environment

COBIT 2019 · 1 control

  • DSS05.02 DSS05.02 Manage network and connectivity security

DORA · 1 control

HIPAA Security Rule · 1 control

ISO 27001:2013 · 1 control

ISO 27701:2019 · 1 control

  • 6.10.1 Network security management

NIST SP 800-161 Rev 1 · 1 control

NIST SP 800-172 · 1 control

  • 3.5.1e Identification of Systems, Components, and Devices

NIST SP 800-66 Rev 2 · 1 control

UK Cyber Essentials · 1 control

  • CE-FW.4 Approve and Document Inbound Rules

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 Technological controls – ISO 27001:2022

You are reading one control. How much of ISO 27001:2022 have you already done?

ISO 27001:2022 8.21 is one control. If you already hold one of the frameworks below, a reviewed crosswalk already says how much of ISO 27001:2022 your existing evidence covers. Hold NIST SP 800-53 Rev 5 and 79 of 93 ISO 27001:2022 controls already carry evidence.

If you hold NIST SP 800-53 Rev 584.9% covered · 14 gapsIf you hold ISO 27001:201383.9% covered · 15 gapsIf you hold FedRAMP Moderate80.6% covered · 18 gapsIf you hold Cloud Security Alliance Cloud Controls Matrix (CCM) v4.0.174.2% covered · 24 gapsIf you hold C5 (Germany)69.9% covered · 28 gapsIf you hold NIST Cybersecurity Framework 2.063.4% covered · 34 gaps

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. 170 were rejected on the NIST SP 800-53 Rev 5 pair alone.

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Query this from an agent

The graph holds this control, the 84 it maps to, and the evidence behind each claim, over MCP and REST.

MCP endpointAll ISO 27001:2022 controls