Ensure an Inactivity Interval of 15 Minutes Or Less for the Screen Saver Is Enabled

中レベル 1自動macos

説明

A locking screen saver is one of the standard security controls to limit access to a computer and the current user's session when the computer is temporarily unused or unattended. In macOS, the screen saver starts after a value is selected in the drop- down menu. 15 minutes or less is an acceptable value. Any value can be selected through the command line or script, but a number that is not reflected in the GUI can be problematic. 15 minutes is the default for new accounts. Setting an inactivity interval for the screen saver prevents unauthorized persons from viewing a system left unattended for an extensive period of time.

チェック方法

監査方法: シェルコマンド

shell

/usr/bin/osascript -l JavaScript <<'EOS'
function run() {
  let timeout = ObjC.unwrap($.NSUserDefaults.alloc.initWithSuiteName('com.apple.screensaver').objectForKey('idleTime'))
  if ( timeout != null && timeout > 0 && timeout <= 900 ) {
    return("true")
  } else {
    return("false")
  }
}
EOS

期待される出力: true

修正方法

修正方法: ガイダンスまたは IaC パッチ

Profile Method: 1. The PayloadType string is com.apple.screensaver 2. The key to include is idleTime 3. The key must be set to <integer><≤900></integer>

プロパティ

オペレーティングシステム: macos-14
タグ: macossonoma
参照: CIS Apple macOS 14.0 Sonoma Benchmark v3.1.0 - 2.10.1 Ensure an Inactivity Interval of 15 Minutes Or Less for the Screen Saver Is Enabled

このホストをチェック

監査が許可されているマシンで実行してください。スキャンは読み取り専用です。

shell

tmaegis scan --target macos