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

Trusted Locations on the network must be disabled in Excel.

DISA Rule

SV-223310r508019_rule

Vulnerability Number

V-223310

Group Title

SRG-APP-000210

Rule Version

O365-EX-000001

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 Excel 2016 >> Excel Options >> Security >> Trust Center >> Trusted Locations "Allow Trusted Locations on the network" to "Disabled".

Check Contents

Verify the policy value for User Configuration >> Administrative Templates >> Microsoft Excel 2016 >> Excel Options >> Security >> Trust Center >> Trusted Locations "Allow Trusted Locations on the network" is set to "Disabled".

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

HKCU\Software\Policies\Microsoft\Office\16.0\excel\security\trusted locations

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

Vulnerability Number

V-223310

Documentable

False

Rule Version

O365-EX-000001

Severity Override Guidance

Verify the policy value for User Configuration >> Administrative Templates >> Microsoft Excel 2016 >> Excel Options >> Security >> Trust Center >> Trusted Locations "Allow Trusted Locations on the network" is set to "Disabled".

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

HKCU\Software\Policies\Microsoft\Office\16.0\excel\security\trusted locations

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

Check Content Reference

M

Target Key

4099

Comments