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

Exchange must have authenticated access set to integrated Windows authentication only.

DISA Rule

SV-259650r960792_rule

Vulnerability Number

V-259650

Group Title

SRG-APP-000033

Rule Version

EX19-MB-000020

Severity

CAT II

CCI(s)

• CCI-000213 - Enforce approved authorizations for logical access to information and system resources in accordance with applicable access control policies.

Weight

10

Fix Recommendation

Open the Exchange Management Shell and enter the following command:

Set-OwaVirtualDirectory -Identity '<IdentityName>' -WindowsAuthentication $true

Note: The <IdentityName> value must be in quotes.

Example for the Identity Name: <ServerName>\owa (Default website)

Check Contents

Open the Exchange Management Shell and enter the following command:

Get-OwaVirtualDirectory | Select-Object -Property ServerName, Name, Identity,*Authentication

If the value of "WindowsAuthentication" is not set to "True", this is a finding.

Vulnerability Number

V-259650

Documentable

False

Rule Version

EX19-MB-000020

Severity Override Guidance

Open the Exchange Management Shell and enter the following command:

Get-OwaVirtualDirectory | Select-Object -Property ServerName, Name, Identity,*Authentication

If the value of "WindowsAuthentication" is not set to "True", this is a finding.

Check Content Reference

M

Target Key

5580