CIS Controls v8
CIS Control 9: Email and Web Browser Protections

CIS Controls v8 CIS-9.3: Maintain and Enforce Network-Based URL Filters

Apply and keep current network-based URL filters that stop enterprise assets reaching websites that may be malicious or are not approved, for example by filtering on category or reputation or by using block lists. The filters apply to every enterprise asset.

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

What else in your programme already covers this

This control maps to 29 controls across 18 other frameworks. If you already hold one of them, the evidence you collected for it is the starting point here rather than new work.

NIST SP 800-53 Rev 5 · 4 controls

  • ASD37-06 Email content filtering (Excellent)
  • ASD37-07 Web content filtering (Excellent)
  • ASD37-08 Deny direct internet connectivity (Excellent)
  • ISM-0958 Approved domain or category lists for web traffic
  • ISM-0963 Filtering harmful web content
  • ISM-1236 Blocking malicious, dynamic and free domains

PCI DSS 4.0 · 3 controls

  • 1.3.2 1.3.2 Outbound CDE traffic restricted
  • 1.4.2 1.4.2 Restricting traffic entering trusted networks from outside
  • 5.4.1 5.4.1 Mechanisms detect and protect against phishing
  • ANSSI-HYG-22 Put in Place a Secure Internet Access Gateway
  • ANSSI-HYG-27 Prohibit Internet Access from Administration Workstations and Servers

SOC 2 · 2 controls

  • SOC2-CC6.6 CC6.6 Protection against threats from outside the system boundary
  • SOC2-CC6.8 CC6.8 Preventing and detecting unauthorised or malicious software
  • E8-UAH-ML1 User Application Hardening - Maturity Level 1
  • AUCDR-IS-5 Limit, prevent, detect and remove malware
  • NS-3 Deploy firewall at the edge of enterprise network

CIS Controls v8.1 · 1 control

  • 9.3 Maintain and Enforce Network-Based URL Filters

FedRAMP High · 1 control

  • SC-7(8) Route Traffic to Authenticated Proxy Servers

FedRAMP Moderate · 1 control

  • SC-7(8) Route Traffic to Authenticated Proxy Servers

HIPAA Security Rule · 1 control

ISO 27001:2022 · 1 control

ISO 27002:2022 · 1 control

  • NIST-CSF-PR.IR-01 Networks and environments are protected from unauthorized logical access and usage

UK Cyber Essentials · 1 control

  • CE-MP.3 Anti-Malware Scans Files on Access and Web Pages

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 CIS Control 9: Email and Web Browser Protections

You are reading one control. How much of CIS Controls v8 have you already done?

CIS Controls v8 CIS-9.3 is one control. If you already hold one of the frameworks below, a reviewed crosswalk already says how much of CIS Controls v8 your existing evidence covers. Hold ISO 27001:2022 and 102 of 153 CIS Controls v8 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. 240 were rejected on the ISO 27001:2022 pair alone.

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The graph holds this control, the 29 it maps to, and the evidence behind each claim, over MCP and REST.