STIGQter: STIG Summary: Microsoft Exchange 2019 Edge Server Security Technical Implementation Guide Version: 2 Release: 2 Benchmark Date: 30 Jan 2025:

Exchange internal Receive connectors must require encryption.

DISA Rule

SV-259641r961632_rule

Vulnerability Number

V-259641

Group Title

SRG-APP-000439

Rule Version

EX19-ED-000235

Severity

CAT I

CCI(s)

• CCI-002418 - Protect the confidentiality and/or integrity of transmitted information.

Weight

10

Fix Recommendation

Open the Exchange Management Shell and enter the following command:

Set-ReceiveConnector -Identity <'IdentityName'> -AuthMechanism 'Tls'

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

Repeat the process for each Receive connector.

Check Contents

Open the Exchange Management Shell and enter the following command:

Get-ReceiveConnector | Select-Object -Property Name, Identity, AuthMechanism

For each Receive connector, if the value of "AuthMechanism" is not set to "Tls", this is a finding.

Vulnerability Number

V-259641

Documentable

False

Rule Version

EX19-ED-000235

Severity Override Guidance

Open the Exchange Management Shell and enter the following command:

Get-ReceiveConnector | Select-Object -Property Name, Identity, AuthMechanism

For each Receive connector, if the value of "AuthMechanism" is not set to "Tls", this is a finding.

Check Content Reference

M

Target Key

5579