STIGQter: STIG Summary: Microsoft Office 365 ProPlus Security Technical Implementation Guide Version: 2 Release: 2 Benchmark Date: 23 Apr 2021:

Outlook must be configured to not run scripts in forms in which the script and the layout are contained within the message.

DISA Rule

SV-223364r508019_rule

Vulnerability Number

V-223364

Group Title

SRG-APP-000210

Rule Version

O365-OU-000019

Severity

CAT II

CCI(s)

• CCI-001170 - The information system prevents the automatic execution of mobile code in organization-defined software applications.

Weight

10

Fix Recommendation

Set the policy value for User Configuration >> Administrative Templates >> Microsoft Outlook 2016 >> Security >> Security Form Settings >> Custom Form Security "Allow scripts in one-off Outlook forms" to "Disabled".

Check Contents

Verify the policy value for User Configuration >> Administrative Templates >> Microsoft Outlook 2016 >> Security >> Security Form Settings >> Custom Form Security "Allow scripts in one-off Outlook forms" is set to "Disabled".

Use the Windows Registry Editor to navigate to the following key:

HKCU\Software\Policies\Microsoft\Office\16.0\outlook\security

If the value EnableOneOffFormScripts is REG_DWORD = 0, this is not a finding.

Vulnerability Number

V-223364

Documentable

False

Rule Version

O365-OU-000019

Severity Override Guidance

Verify the policy value for User Configuration >> Administrative Templates >> Microsoft Outlook 2016 >> Security >> Security Form Settings >> Custom Form Security "Allow scripts in one-off Outlook forms" is set to "Disabled".

Use the Windows Registry Editor to navigate to the following key:

HKCU\Software\Policies\Microsoft\Office\16.0\outlook\security

If the value EnableOneOffFormScripts is REG_DWORD = 0, this is not a finding.

Check Content Reference

M

Target Key

4099

Comments