STIG V-268487 | The macOS system must disable the iCl...

macOS 15 - Sequoia

The macOS system must disable the iCloud Calendar services

STIG ID: APPL-15-002012 | SRG: SRG-OS-000095-GPOS-00049 | Severity: Medium | CCI: CCI-000381 | Vulnerability ID: V-268487

Description

The macOS built-in Calendar.app connection to Apple's iCloud service must be disabled.Apple's iCloud service does not provide an organization with enough control over the storage and access of data and, therefore, automated calendar synchronization must be controlled by an organization-approved service.

Check

C-268487r1034401_chk

Verify the macOS system is configured to disable iCloud Calendar services with the following command:/usr/bin/osascript -l JavaScript << EOS$.NSUserDefaults.alloc.initWithSuiteName('com.apple.applicationaccess')\.objectForKey('allowCloudCalendar').jsEOSIf the result is not "false", this is a finding.

Fix

F-72418r1034400_fix

Configure the macOS system to disable iCloud Calendar services by installing the "com.apple.applicationaccess" configuration profile.