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

Exchange must limit the Receive connector timeout.

DISA Rule

SV-259630r1043182_rule

Vulnerability Number

V-259630

Group Title

SRG-APP-000295

Rule Version

EX19-ED-000159

Severity

CAT II

CCI(s)

Weight

10

Fix Recommendation

Update the EDSP, or the applicable documentation.

Open the Exchange Management Shell and enter the following command:

Set-ReceiveConnector -Identity <'IdentityName'> -ConnectionTimeout 00:05:00

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

or

The value as identified by the EDSP that has obtained a signoff with risk acceptance.

Repeat the procedures for each Receive connector.

Check Contents

Review the Email Domain Security Plan (EDSP), or Organizations applicable documentation.

Determine the connection Timeout value.

Open the Exchange Management Shell and enter the following command:

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

For each Receive connector, if the value of "ConnectionTimeout" is not set to "00:05:00", this is a finding.

If "ConnectionTimeout" is set to another value other than "00:05:00" and has signoff and risk acceptance in the EDSP, this is not a finding.

Vulnerability Number

V-259630

Documentable

False

Rule Version

EX19-ED-000159

Severity Override Guidance

Review the Email Domain Security Plan (EDSP), or Organizations applicable documentation.

Determine the connection Timeout value.

Open the Exchange Management Shell and enter the following command:

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

For each Receive connector, if the value of "ConnectionTimeout" is not set to "00:05:00", this is a finding.

If "ConnectionTimeout" is set to another value other than "00:05:00" and has signoff and risk acceptance in the EDSP, this is not a finding.

Check Content Reference

M

Target Key

5579