Exchange Queue monitoring must be configured with threshold and action.

From Microsoft Exchange 2016 Mailbox Server Security Technical Implementation Guide

Part of SRG-APP-000111

Associated with: CCI-000154

SV-95351r1_rule Exchange Queue monitoring must be configured with threshold and action.

Vulnerability discussion

Monitors are automated "process watchers" that respond to performance changes and can be useful in detecting outages and alerting administrators where attention is needed. Exchange has built-in monitors that enable the administrator to generate alerts if thresholds are reached, better enabling them to react in a timely fashion.This field offers choices of alerts when a "warning" or "critical" threshold is reached on the SMTP queue. A good rule of thumb (default) is to issue warnings when SMTP queue growth exceeds 10 minutes and critical messages when it exceeds 20 minutes, which should only happen occasionally. Frequent alerts against this counter may indicate a network or other issue (such as inbound ExchangeMER traffic) that directly impacts email delivery.Notification choices include email alert to an email-enabled account (for example, an email Administrator) or invoke a script to take other action (for example, to add an Event to the Microsoft Application Event Log, where external monitors might detect it).

Check content

Note: If a third-party application is performing monitoring functions, the reviewer should verify the application is monitoring correctly and mark the vulnerability not applicable (NA). Open the Exchange Management Shell and enter the following command: perfmon Get-MonitoringItemHelp -Identity -Server If no sets are defined or queues are not being monitored, this is a finding.

Fix text

Open the Exchange Management Shell and enter the following command: perfmon In the left pane, navigate to and select Performance >> Data Collector Sets >> User Defined. Right-click on, navigate to, and configure User Defined >> New >> Data Collector Sets and configure the system to use the data collection set for monitoring the queues.

Pro Tips

Lavender hyperlinks in small type off to the right (of CSS class id, if you view the page source) point to globally unique URIs for each document and item. Copy the link location and paste anywhere you need to talk unambiguously about these things.

You can obtain data about documents and items in other formats. Simply provide an HTTP header Accept: text/turtle or Accept: application/rdf+xml.

Powered by sagemincer