1.6 Ensure Install of macOS Updates Is Enabled

Information

Ensure that macOS updates are installed after they are available from Apple. This setting enables macOS updates to be automatically installed. Some environments will want to approve and test updates before they are delivered. It is best practice to perform testing first where updates can and have caused disruptions to operations. Automatic updates should be turned off where changes are tightly controlled and there are mature testing and approval processes. Automatic updates should not be turned off simply to allow the administrator to contact users in order to verify installation. A dependable, repeatable process involving a patch agent or remote management tool should be in place before auto-updates are turned off.

Rationale:

Patches need to be applied in a timely manner to reduce the risk of vulnerabilities being exploited.

Impact:

Unpatched software may be exploited.

Solution

Graphical Method:
Perform the following steps to enable macOS updates to run automatically:

Open System Preferences

Select Software Updates

Select Advanced

Set Install macOS updates to enabled

Terminal Method:
Run the following commands to enable automatic checking of system data files and security updates:

$ /usr/bin/sudo /usr/bin/defaults write /Library/Preferences/com.apple.SoftwareUpdate AutomaticallyInstallMacOSUpdates -bool TRUE

Profile Method:
Create or edit a configuration profile with the following information:

The PayloadType string is com.apple.SoftwareUpdate

The key to include is AutomaticallyInstallMacOSUpdates

The key must be set to <true/>

See Also

https://workbench.cisecurity.org/benchmarks/11683