SV-223372r961863: Outlook must be configured to not allow hyperlinks in suspected phishing messages. | Microsoft Office 365 ProPlus STIG SCAP Benchmark

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Assessment Title

Rule Text

Outlook must be configured to not allow hyperlinks in suspected phishing messages.

Description

Discussion Text

This policy setting controls whether hyperlinks in suspected phishing e-mail messages in Outlook are allowed. If you enable this policy setting, Outlook will allow hyperlinks in suspected phishing messages that are not also classified as junk e-mail. If you disable or do not configure this policy setting, Outlook will not allow hyperlinks in suspected phishing messages, even if they are not classified as junk e-mail.

How this relates to the STIG checklist: STIG vs SCAP benchmark.

IA Controls

NIST SP 800-53

Not mappedCCI-000366SV-108923V-99819

References

DPMS Target Microsoft Office 365 ProPlus DISA DPMS Target Microsoft Office 365 ProPlus 4099

SCC Automation Reference

The reconstructed evaluation script behind this rule's OVAL check(s) — every module a compound check combines, with this rule's own concrete values and DISA's SCC tool's real per-module mechanism curated from static teardown of SCC releases.

Assessment Script Powered by AISyntax-verified

A standalone PowerShell script to assess this control automatically. Review before running it in your environment.

Syntax-checked as valid PowerShell. Not executed here — running it for real needs the actual ms_office_365_proplus target this check assesses.

# OVAL Definition: oval:mil.disa.stig.office365:def:223372
if (!(Test-Path -Path "HKCU:\Software\Policies\Microsoft\Office\16.0\outlook\options\mail\JunkMailEnableLinks")) {exit 1} else {if ((Get-ItemProperty -Path "HKCU:\Software\Policies\Microsoft\Office\16.0\outlook\options\mail\JunkMailEnableLinks").JunkMailEnableLinks -eq 0) {exit 0} else {exit 1}}

Remediation

Set the policy value for User Configuration >> Administrative Templates >> Microsoft Outlook 2016 >> Security >> Trust Center "Allow hyperlinks in suspected phishing e-mail messages" to "Disabled".