STIGQter: STIG Summary: Microsoft Exchange 2019 Mailbox Server Security Technical Implementation Guide Version: 2 Release: 3 Benchmark Date: 02 Jul 2025:

Exchange local machine policy must require signed scripts.

DISA Rule

SV-259664r1015275_rule

Vulnerability Number

V-259664

Group Title

SRG-APP-000131

Rule Version

EX19-MB-000061

Severity

CAT II

CCI(s)

• CCI-003992 - Prevent the installation of organization-defined software and firmware components without verification that the component has been digitally signed using a certificate that is recognized and approved by the organization.

Weight

10

Fix Recommendation

Open the Exchange Management Shell and enter the following command:

Set-ExecutionPolicy RemoteSigned

Check Contents

Open the Exchange Management Shell and enter the following command:

Get-ExecutionPolicy

If the value returned is not "RemoteSigned", this is a finding.

Vulnerability Number

V-259664

Documentable

False

Rule Version

EX19-MB-000061

Severity Override Guidance

Open the Exchange Management Shell and enter the following command:

Get-ExecutionPolicy

If the value returned is not "RemoteSigned", this is a finding.

Check Content Reference

M

Target Key

5580