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Removed

V-223300

The Local Machine Zone Lockdown Security must be enabled in all Office programs.

Finding ID
O365-CO-000018
Rule ID
SV-223300r508019_rule
Severity
Cat II
CCE
(None)
Group Title
SRG-APP-000516
CCI
CCI-000366
Target Key
(None)
Documentable
No
Discussion

Internet Explorer places restrictions on each web page users can use the browser to open. Web pages on a user's local computer have the fewest security restrictions and reside in the Local Machine zone, making this security zone a prime target for malicious users and code. Disabling or not configuring this setting could allow pages in the Internet zone to navigate to pages in the Local Machine zone to then run code to elevate privileges. This could allow malicious code or users to become active on user computers or the network.

Fix Text

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

Check Content

Verify the policy value for Computer Configuration >> Administrative Templates >> Microsoft Office 2016 (Machine) >> Security Settings >> IE Security >> Local Machine Zone Lockdown Security 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_localmachine_lockdown If the value for all installed Office programs is REG_DWORD = 1, this is not a finding.