Title

The macOS system must disable iCloud Keychain synchronization. (Cat II impact)

Discussion

The macOS system's ability to automatically synchronize a user's passwords to their iCloud account must be disabled. Apple's iCloud service does not provide an organization with enough control over the storage and access of data and, therefore, password management and synchronization must be controlled by an organization approved service.

Check Content

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

Fix Text

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

Additional Identifiers

Rule ID: SV-259501r941125_rule

Vulnerability ID: V-259501

Group Title: SRG-OS-000095-GPOS-00049

Expert Comments

CCIs tied to check.

Controls tied to check. These are derived from the CCIs shown above.