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← Back to Microsoft Office 365 ProPlus Security Technical Implementation Guide

V-223328

CAT II (Medium)

Updating of links in Excel must be prompted and not automatic.

Rule ID

SV-223328r961092_rule

STIG

Microsoft Office 365 ProPlus Security Technical Implementation Guide

Version

V3R5

CCIs

CCI-001170

Discussion

This policy setting controls whether Excel prompts users to update automatic links, or whether the updates occur in the background with no prompt. If you enable or do not configure this policy setting, Excel will prompt users to update automatic links. In addition, the "Ask to update automatic links" user interface option under File tab >> Advanced >> General is selected. If you disable this policy setting, Excel updates automatic links without prompting or informing users, which could compromise the integrity of some of the information in the workbook.

Check Content

Verify the policy value for User Configuration >> Administrative Templates >> Microsoft Excel 2016 >> Excel Options >> Advanced >> Ask to update automatic links is set to "Enabled".

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

HKCU\software\policies\microsoft\office\16.0\excel\options\binaryoptions

If the value for fupdateext_78_1 is REG_DWORD = 0, this is not a finding.

Fix Text

Set the policy value for User Configuration >> Administrative Templates >> Microsoft Excel 2016 >> Excel Options >> Advanced >> Ask to update automatic links to "Enabled".