Check e-mail addresses against addresses of certificates being used must be disallowed.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-26702	DTOO320	SV-54066r1_rule		Medium

Description
This policy setting controls whether Outlook verifies the user's email address with the address associated with the certificate used for signing.

STIG	Date
Microsoft Outlook 2013 STIG	2018-09-05

Details

Check Text ( C-48006r1_chk )
Verify the policy value for User Configuration -> Administrative Templates -> Microsoft Outlook 2013 -> Security -> Cryptography "Do not check e-mail address against address of certificates being used" 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 SupressNameChecks is REG_DWORD = 1, this is not a finding.

Check Text ( C-48006r1_chk )

Verify the policy value for User Configuration -> Administrative Templates -> Microsoft Outlook 2013 -> Security -> Cryptography "Do not check e-mail address against address of certificates being used" 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 SupressNameChecks is REG_DWORD = 1, this is not a finding.

Fix Text (F-46946r1_fix)
Set the policy value for User Configuration -> Administrative Templates -> Microsoft Outlook 2013 -> Security -> Cryptography "Do not check e-mail address against address of certificates being used" to "Enabled".