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The application pools rapid fail protection for each IIS 8.5 website must be enabled.


Overview

Finding ID Version Rule ID IA Controls Severity
V-214491 IISW-SI-000258 SV-214491r766895_rule Medium
Description
Rapid fail protection is a feature that interrogates the health of worker processes associated with websites and web applications. It can be configured to perform a number of actions such as shutting down and restarting worker processes that have reached failure thresholds. By not setting rapid fail protection the web server could become unstable in the event of a worker process crash potentially leaving the web server unusable.
STIG Date
Microsoft IIS 8.5 Site Security Technical Implementation Guide 2022-06-17

Details

Check Text ( C-15700r766893_chk )
If this IIS 8.5 installation is supporting Microsoft Exchange, and not otherwise hosting any content, this requirement is Not Applicable.

Open the IIS 8.5 Manager.

Click the "Application Pools".

Perform for each Application Pool.

Highlight an Application Pool to review and click "Advanced Settings" in the "Actions" pane.

Scroll down to the "Rapid Fail Protection" section and verify the value for "Enabled" is set to "True".

If the "Rapid Fail Protection:Enabled" is not set to "True", this is a finding.
Fix Text (F-15698r766894_fix)
Open the IIS 8.5 Manager.

Click the "Application Pools".

Perform for each Application Pool.

Highlight an Application Pool to review and click "Advanced Settings" in the "Actions" pane.

Scroll down to the "Rapid Fail Protection" section and set the value for "Enabled" to "True".

Click "OK".