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Replies or forwards to signed/encrypted messages must be signed/encrypted.


Overview

Finding ID Version Rule ID IA Controls Severity
V-26637 DTOO317 SV-54065r1_rule ECSC-1 Medium
Description
This setting controls whether replies and forwards to signed/encrypted mail should also be signed/encrypted.
STIG Date
Microsoft Outlook 2013 STIG 2014-01-06

Details

Check Text ( C-48005r1_chk )
Verify the policy value for User Configuration -> Administrative Templates -> Microsoft Outlook 2013 -> Security -> Cryptography "Replies or forwards to signed/encrypted messages are signed/encrypted" is set to "Enabled".

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 NoCheckOnSessionSecurity is REG_DWORD = 1, this is not a finding.
Fix Text (F-46945r1_fix)
Set the policy value for User Configuration -> Administrative Templates -> Microsoft Outlook 2013 -> Security -> Cryptography "Replies or forwards to signed/encrypted messages are signed/encrypted" to "Enabled".