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Apple macOS 15 (Sequoia) Security Technical Implementation Guide

Rules, Groups, and Values defined within the XCCDF Benchmark

  • SRG-OS-000075-GPOS-00043

    <GroupDescription></GroupDescription>
    Group
  • The macOS system must set minimum password lifetime to 24 hours.

    &lt;VulnDiscussion&gt;The macOS must be configured to enforce a minimum password lifetime limit of 24 hours. This rule discourages users from cycl...
    Rule Medium Severity
  • SRG-OS-000118-GPOS-00060

    <GroupDescription></GroupDescription>
    Group
  • The macOS system must disable accounts after 35 days of inactivity.

    &lt;VulnDiscussion&gt;The macOS must be configured to disable accounts after 35 days of inactivity. This rule prevents malicious users from employ...
    Rule Medium Severity
  • SRG-OS-000205-GPOS-00083

    <GroupDescription></GroupDescription>
    Group
  • The macOS system must configure Apple System Log (ASL) files owned by root and group to wheel.

    &lt;VulnDiscussion&gt;The Apple System Logs must be owned by root. ASLs contain sensitive data about the system and users. Setting ASL files to be...
    Rule Medium Severity
  • SRG-OS-000205-GPOS-00083

    <GroupDescription></GroupDescription>
    Group
  • The macOS system must configure Apple System Log (ASL) files to mode 640 or less permissive.

    &lt;VulnDiscussion&gt;The Apple System Logs must be configured to be writable by root and readable only by the root user and group wheel. To achiev...
    Rule Medium Severity
  • SRG-OS-000205-GPOS-00083

    <GroupDescription></GroupDescription>
    Group
  • The macOS system must configure system log files owned by root and group to wheel.

    &lt;VulnDiscussion&gt;The system log files must be owned by root. System logs contain sensitive data about the system and users. Setting log files...
    Rule Medium Severity
  • SRG-OS-000205-GPOS-00083

    <GroupDescription></GroupDescription>
    Group
  • The macOS system must configure system log files to mode 640 or less permissive.

    &lt;VulnDiscussion&gt;The system logs must be configured to be writable by root and readable only by the root user and group wheel. To achieve this...
    Rule Medium Severity
  • SRG-OS-000341-GPOS-00132

    <GroupDescription></GroupDescription>
    Group
  • The macOS system must configure install.log retention to 365.

    &lt;VulnDiscussion&gt;The install.log must be configured to require that records be kept for an organizational-defined value before deletion, unles...
    Rule Low Severity
  • SRG-OS-000051-GPOS-00024

    <GroupDescription></GroupDescription>
    Group
  • The macOS system must ensure System Integrity Protection is enabled.

    &lt;VulnDiscussion&gt;System Integrity Protection is vital to protecting the integrity of the system as it prevents malicious users and software fr...
    Rule High Severity
  • SRG-OS-000185-GPOS-00079

    <GroupDescription></GroupDescription>
    Group
  • The macOS system must enforce FileVault.

    &lt;VulnDiscussion&gt;The information system implements cryptographic mechanisms to protect the confidentiality and integrity of information stored...
    Rule High Severity
  • SRG-OS-000480-GPOS-00232

    <GroupDescription></GroupDescription>
    Group
  • The macOS system must enable macOS Application Firewall.

    &lt;VulnDiscussion&gt;The macOS Application Firewall is the built-in firewall that comes with macOS, and it must be enabled. When the macOS Applic...
    Rule Medium Severity
  • SRG-OS-000104-GPOS-00051

    <GroupDescription></GroupDescription>
    Group
  • The macOS system must configure the login window to prompt for username and password.

    &lt;VulnDiscussion&gt;The login window must be configured to prompt all users for both a username and a password. By default, the system displays ...
    Rule Medium Severity
  • SRG-OS-000095-GPOS-00049

    <GroupDescription></GroupDescription>
    Group
  • The macOS system must disable the TouchID prompt during Setup Assistant.

    &lt;VulnDiscussion&gt;The prompt for TouchID during Setup Assistant must be disabled. macOS prompts new users through enabling TouchID during Setu...
    Rule Medium Severity
  • SRG-OS-000095-GPOS-00049

    <GroupDescription></GroupDescription>
    Group
  • The macOS system must disable the Screen Time prompt during Setup Assistant.

    &lt;VulnDiscussion&gt;The prompt for Screen Time setup during Setup Assistant must be disabled. Enabling any service increases the attack surface...
    Rule Medium Severity
  • SRG-OS-000095-GPOS-00049

    <GroupDescription></GroupDescription>
    Group
  • The macOS system must disable Unlock with Apple Watch during Setup Assistant.

    &lt;VulnDiscussion&gt;The prompt for Apple Watch unlock setup during Setup Assistant must be disabled. Disabling Apple watches is a necessary step...
    Rule Medium Severity
  • SRG-OS-000080-GPOS-00048

    <GroupDescription></GroupDescription>
    Group
  • The macOS system must disable Handoff.

    &lt;VulnDiscussion&gt;Handoff must be disabled. Handoff allows users to continue working on a document or project when the user switches from one ...
    Rule Medium Severity
  • SRG-OS-000095-GPOS-00049

    <GroupDescription></GroupDescription>
    Group
  • The macOS system must disable proximity-based password sharing requests.

    &lt;VulnDiscussion&gt;Proximity-based password sharing requests must be disabled. The default behavior of macOS is to allow users to request passw...
    Rule Medium Severity
  • SRG-OS-000095-GPOS-00049

    <GroupDescription></GroupDescription>
    Group
  • The macOS system must disable Erase Content and Settings.

    &lt;VulnDiscussion&gt;Erase Content and Settings must be disabled. Without disabling the Erase Content and Settings configuration, forensics data ...
    Rule Medium Severity
  • SRG-OS-000080-GPOS-00048

    <GroupDescription></GroupDescription>
    Group
  • The macOS system must enable Authenticated Root.

    &lt;VulnDiscussion&gt;Authenticated Root must be enabled. When Authenticated Root is enabled, the macOS is booted from a signed volume that is cry...
    Rule Medium Severity
  • SRG-OS-000362-GPOS-00149

    <GroupDescription></GroupDescription>
    Group
  • The macOS system must prohibit user installation of software into /users/.

    &lt;VulnDiscussion&gt;Users must not be allowed to install software into /users/. Allowing regular users without explicit privileges to install so...
    Rule Medium Severity
  • SRG-OS-000378-GPOS-00163

    <GroupDescription></GroupDescription>
    Group
  • The macOS system must authorize USB devices before allowing connection.

    &lt;VulnDiscussion&gt;USB devices connected to a Mac must be authorized. [IMPORTANT] ==== This feature is removed if a smart card is paired or sma...
    Rule Medium Severity
  • SRG-OS-000445-GPOS-00199

    <GroupDescription></GroupDescription>
    Group
  • The macOS system must ensure Secure Boot level is set to "full".

    &lt;VulnDiscussion&gt;The Secure Boot security setting must be set to "full". Full security is the default Secure Boot setting in macOS. During st...
    Rule Medium Severity
  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
  • The macOS system must enforce enrollment in Mobile Device Management (MDM).

    &lt;VulnDiscussion&gt;Users must enroll their Mac in MDM software. User Approved MDM (UAMDM) enrollment or enrollment via Apple Business Manager (...
    Rule Medium Severity
  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
  • The macOS system must enable Recovery Lock.

    &lt;VulnDiscussion&gt;A Recovery Lock password must be enabled and set. Single user mode, recovery mode, the Startup Manager, and several other to...
    Rule Medium Severity
  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
  • The macOS system must enforce installation of XProtect Remediator and Gatekeeper updates automatically.

    &lt;VulnDiscussion&gt;Software Update must be configured to update XProtect Remediator and Gatekeeper automatically. This setting enforces definit...
    Rule Medium Severity
  • SRG-OS-000095-GPOS-00049

    <GroupDescription></GroupDescription>
    Group
  • The macOS system must disable Genmoji.

    &lt;VulnDiscussion&gt;Apple Intelligence features that use off-device Artificial Intelligence (AI) must be disabled. Use of off-device AI poses a ...
    Rule Medium Severity

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