STIGQter: STIG Summary: MS Exchange 2013 Edge Transport Server Security Technical Implementation Guide Version: 1 Release: 5 Benchmark Date: 26 Apr 2019:

Exchange must have accepted domains configured.

DISA Rule

SV-84409r1_rule

Vulnerability Number

V-69787

Group Title

SRG-APP-000038

Rule Version

EX13-EG-000015

Severity

CAT II

CCI(s)

• CCI-001368 - The information system enforces approved authorizations for controlling the flow of information within the system based on organization-defined information flow control policies.

Weight

10

Fix Recommendation

Update the EDSP.

Open the Exchange Management Shell and enter the following command:

Set-AcceptedDomain -Identity <'IdentityName'> -MakeDefault $true

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

Check Contents

Review the Email Domain Security Plan (EDSP).

Determine the Accepted Domain values.

Open the Exchange Management Shell and enter the following command:

Get-AcceptedDomain | Select Name, DomainName, Identity, Default

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

or

If the Default value for AcceptedDomains is set to another value other than True and has signoff and risk acceptance in the EDSP, this is not a finding.

Vulnerability Number

V-69787

Documentable

False

Rule Version

EX13-EG-000015

Severity Override Guidance

Review the Email Domain Security Plan (EDSP).

Determine the Accepted Domain values.

Open the Exchange Management Shell and enter the following command:

Get-AcceptedDomain | Select Name, DomainName, Identity, Default

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

or

If the Default value for AcceptedDomains is set to another value other than True and has signoff and risk acceptance in the EDSP, this is not a finding.

Check Content Reference

M

Target Key

3099

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