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

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-26637	DTOO317 - Outlook	SV-34109r1_rule		Medium

Description
This setting controls whether replies and forwards to signed/encrypted mail should also be signed/encrypted.

STIG	Date
Microsoft Outlook 2010 STIG	2018-04-04

Details

Check Text ( C-34233r1_chk )
The policy value for User Configuration -> Administrative Templates -> Microsoft Outlook 2010 -> Security -> Cyrptography “Replies or forwards to signed/encrypted messages are signed/encrypted” must be set to “Enabled". Procedure: Use the Windows Registry Editor to navigate to the following key: HKCU\Software\Policies\Microsoft\Office\14.0\outlook\security Criteria: If the value NoCheckOnSessionSecurity is REG_DWORD = 1, this is not a finding.

Check Text ( C-34233r1_chk )

The policy value for User Configuration -> Administrative Templates -> Microsoft Outlook 2010 -> Security -> Cyrptography “Replies or forwards to signed/encrypted messages are signed/encrypted” must be set to “Enabled".

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

HKCU\Software\Policies\Microsoft\Office\14.0\outlook\security

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

Fix Text (F-29923r1_fix)
Set the policy value for User Configuration -> Administrative Templates -> Microsoft Outlook 2010 -> Security -> Cyrptography “Replies or forwards to signed/encrypted messages are signed/encrypted” to “Enabled".