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ActiveX One-Off forms must be configured.


Overview

Finding ID Version Rule ID IA Controls Severity
V-17559 DTOO234 SV-53915r1_rule ECSC-1 Medium
Description
Third-party ActiveX controls are not allowed to run in one-off forms in Outlook. This behavior can be changed so that Safe Controls (Microsoft Forms 2.0 controls and the Outlook Recipient and Body controls) are allowed in one-off forms, or so that all ActiveX controls are allowed to run.
STIG Date
Microsoft Outlook 2013 STIG 2014-01-06

Details

Check Text ( C-47927r1_chk )
Verify the policy value for User Configuration -> Administrative Templates -> Microsoft Outlook 2013 -> Security "Allow Active X One Off Forms" is set to "Enabled: Load only Outlook Controls".

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

HKCU\Software\Policies\Microsoft\Office\15.0\outlook\security

Criteria: If the value AllowActiveXOneOffForms is REG_DWORD = 0, this is not a finding.
Fix Text (F-46815r1_fix)
Set the policy value for User Configuration -> Administrative Templates -> Microsoft Outlook 2013 -> Security "Allow Active X One Off Forms" to "Enabled: Load only Outlook Controls".