STIGQter STIGQter: STIG Summary: Microsoft Outlook 2016 Security Technical Implementation Guide Version: 1 Release: 2 Benchmark Date: 28 Jul 2017: S/Mime interoperability with external clients for message handling must be configured.

DISA Rule

SV-85819r1_rule

Vulnerability Number

V-71195

Group Title

SRG-APP-000179

Rule Version

DTOO257

Severity

CAT II

CCI(s)

Weight

10

Fix Recommendation

Set the policy value for User Configuration -> Administrative Templates -> Microsoft Outlook 2016 -> Security -> Cryptography "S/MIME interoperability with external clients" to "Enabled (Handle internally)".

Check Contents

Verify the policy value for User Configuration -> Administrative Templates -> Microsoft Outlook 2016 -> Security -> Cryptography "S/MIME interoperability with external clients" is set to "Enabled (Handle internally)".

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

HKCU\Software\Policies\Microsoft\Office\16.0\outlook\security

Criteria: If the value ExternalSMime is REG_DWORD = 0, this is not a finding.

Vulnerability Number

V-71195

Documentable

False

Rule Version

DTOO257

Severity Override Guidance

Verify the policy value for User Configuration -> Administrative Templates -> Microsoft Outlook 2016 -> Security -> Cryptography "S/MIME interoperability with external clients" is set to "Enabled (Handle internally)".

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

HKCU\Software\Policies\Microsoft\Office\16.0\outlook\security

Criteria: If the value ExternalSMime is REG_DWORD = 0, this is not a finding.

Check Content Reference

M

Target Key

3121

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