STIGQter: STIG Summary: Microsoft Exchange 2016 Edge Transport Server Security Technical Implementation Guide Version: 2 Release: 2 Benchmark Date: 22 Jan 2021:

The Exchange Simple Mail Transfer Protocol (SMTP) IP Allow List Connection filter must be enabled.

DISA Rule

SV-221247r612603_rule

Vulnerability Number

V-221247

Group Title

SRG-APP-000261

Rule Version

EX16-ED-000510

Severity

CAT II

CCI(s)

• CCI-001308 - The information system automatically updates spam protection mechanisms.

Weight

10

Fix Recommendation

Open the Exchange Management Shell and enter the following command:

Set-IPAllowListConfig -Enabled $true

Check Contents

Open the Exchange Management Shell and enter the following command:

Get-IPAllowListConfig | Select Name, Enabled

If the value for "Enabled" is not set to "True", this is a finding.

Vulnerability Number

V-221247

Documentable

False

Rule Version

EX16-ED-000510

Severity Override Guidance

Open the Exchange Management Shell and enter the following command:

Get-IPAllowListConfig | Select Name, Enabled

If the value for "Enabled" is not set to "True", this is a finding.

Check Content Reference

M

Target Key

4079

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