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

ActiveX installation restriction must be enabled in all Office programs.

DISA Rule

SV-223305r508019_rule

Vulnerability Number

V-223305

Group Title

SRG-APP-000488

Rule Version

O365-CO-000023

Severity

CAT II

CCI(s)

• CCI-002460 - The information system enforces organization-defined actions prior to executing mobile code.

Weight

10

Fix Recommendation

Set the policy value for Computer Configuration >> Administrative Templates >> Microsoft Office 2016 (Machine) >> Security Settings >> IE Security >> Restrict ActiveX Install to "Enabled" and select the check boxes for all installed Office programs.

Check Contents

Verify the policy value for Computer Configuration >> Administrative Templates >> Microsoft Office 2016 (Machine) >> Security Settings >> IE Security >> Restrict ActiveX Install is set to "Enabled" and the check box is selected for every installed Office program.

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

HKLM\software\microsoft\internet explorer\main\featurecontrol\feature_restrict_activexinstall

If the value for all installed programs is REG_DWORD = 1, this is not a finding.

Vulnerability Number

V-223305

Documentable

False

Rule Version

O365-CO-000023

Severity Override Guidance

Verify the policy value for Computer Configuration >> Administrative Templates >> Microsoft Office 2016 (Machine) >> Security Settings >> IE Security >> Restrict ActiveX Install is set to "Enabled" and the check box is selected for every installed Office program.

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

HKLM\software\microsoft\internet explorer\main\featurecontrol\feature_restrict_activexinstall

If the value for all installed programs is REG_DWORD = 1, this is not a finding.

Check Content Reference

M

Target Key

4099

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