STIGQter: STIG Summary: MS Exchange 2013 Client Access Server Security Technical Implementation Guide Version: 1 Release: 3 Benchmark Date: 24 Jan 2020:

Exchange OWA must have S/MIME Certificates enabled.

DISA Rule

SV-84399r1_rule

Vulnerability Number

V-69777

Group Title

SRG-APP-000440

Rule Version

EX13-CA-000155

Severity

CAT II

CCI(s)

• CCI-002421 - The information system implements cryptographic mechanisms to prevent unauthorized disclosure of information and/or detect changes to information during transmission unless otherwise protected by organization-defined alternative physical safeguards.

Weight

10

Fix Recommendation

Open the Exchange Management Shell and enter the following command:

Set-OWAVirtualDirectory -Identity '<IdentityName>\owa (Default Web Site)' -SmimeEnabled $true

Note: The <ServerName>\owa (Default Web Site) value must be in quotes.

Check Contents

Open the Exchange Management Shell and enter the following command:

Get-OWAVirtualDirectory | Select Name, Identity, SmimeEnabled

If the value returned is not set to True, this is a finding.

Vulnerability Number

V-69777

Documentable

False

Rule Version

EX13-CA-000155

Severity Override Guidance

Open the Exchange Management Shell and enter the following command:

Get-OWAVirtualDirectory | Select Name, Identity, SmimeEnabled

If the value returned is not set to True, this is a finding.

Check Content Reference

M

Target Key

3097

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