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V-70725

CAT II (Medium)

ActiveX Installs must be configured for proper restriction.

Rule ID

SV-85349r1_rule

STIG

Microsoft Project 2016 Security Technical Implementation Guide

Version

V1R1

CCIs

CCI-002460

Discussion

Microsoft ActiveX controls allow unmanaged, unprotected code to run on the user computers. ActiveX controls do not run within a protected container in the browser like the other types of HTML or Microsoft Silverlight-based controls. Disabling or not configuring this setting does not block prompts for ActiveX control installations, and these prompts display to users. This could allow malicious code to become active on user computers or the network.

Check Content

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 'winproj.exe' is checked.

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

HKLM\Software\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_RESTRICT_ACTIVEXINSTALL

Criteria: If the value winproj.exe is REG_DWORD = 1, this is not a finding.

Fix Text

Set the policy value for Computer Configuration -> Administrative Templates -> Microsoft Office 2016 (Machine) -> Security Settings -> IE Security "Restrict ActiveX Install" to "Enabled" and place a check in the 'winproj.exe' check box.