Title

The macOS system must be a supported release. (Cat I impact)

Discussion

An operating system release is considered "supported" if the vendor continues to provide security patches for the product. With an unsupported release, it will not be possible to resolve security issues discovered in the system software.

Check Content

As of November 2023, Apple is no longer releasing security updates for macOS 11 (Big Sur). Verify the operating system version. Click the Apple icon on the menu at the top left corner of the screen, and select the "About This Mac" option. The name of the macOS release installed appears on the Overview tab in the resulting window. The precise version number installed is displayed below. If the version is "11" or older, this is a finding.

Fix Text

Upgrade to a supported version of the operating system.

Additional Identifiers

Rule ID: SV-257771r922847_rule

Vulnerability ID: V-257771

Group Title: SRG-OS-000480-GPOS-00227

Expert Comments

CCIs tied to check.

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