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Apple macOS 11 (Big Sur) Security Technical Implementation Guide


Overview

Date Finding Count (105)
2022-02-16 CAT I (High): 9 CAT II (Med): 88 CAT III (Low): 8
STIG Description
This Security Technical Implementation Guide is published as a tool to improve the security of Department of Defense (DoD) information systems. The requirements are derived from the National Institute of Standards and Technology (NIST) 800-53 and related documents. Comments or proposed revisions to this document should be sent via email to the following address: disa.stig_spt@mail.mil.

Available Profiles



Findings (MAC III - Administrative Classified)

Finding ID Severity Title
V-230838 High The macOS system must use multifactor authentication for local access to privileged and non-privileged accounts.
V-230830 High The macOS system must issue or obtain public key certificates under an appropriate certificate policy from an approved service provider.
V-230808 High The macOS system must be configured to disable the system preference pane for Apple ID.
V-230813 High Apple macOS must be configured to disable the tftp service.
V-230829 High The macOS system must use an approved antivirus program.
V-230844 High The macOS system must be configured with the sudoers file configured to authenticate users on a per -tty basis.
V-230823 High The macOS system must enforce access restrictions.
V-230824 High The macOS system must have the security assessment policy subsystem enabled.
V-230755 High The macOS system must be integrated into a directory services infrastructure.
V-230839 Medium The macOS system must be configured so that the login command requires smart card authentication.
V-230833 Medium The macOS system must prohibit password reuse for a minimum of five generations.
V-230832 Medium The macOS system must enforce a 60-day maximum password lifetime restriction.
V-230831 Medium The macOS system must enforce password complexity by requiring that at least one numeric character be used.
V-230837 Medium Apple macOS must be configured with a firmware password to prevent access to single user mode and booting from alternative media.
V-230836 Medium The macOS system must be configured to prevent displaying password hints.
V-230835 Medium The macOS system must enforce password complexity by requiring that at least one special character be used.
V-230834 Medium The macOS system must enforce a minimum 15-character password length.
V-230745 Medium The macOS system must initiate the session lock no more than five seconds after a screen saver is started.
V-230744 Medium The macOS system must retain the session lock until the user reestablishes access using established identification and authentication procedures.
V-230747 Medium The macOS system must be configured to lock the user session when a smart token is removed.
V-230746 Medium The macOS system must initiate a session lock after a 15-minute period of inactivity.
V-230743 Medium The macOS system must be configured to prevent Apple Watch from terminating a session lock.
V-230749 Medium The macOS system must be configured to disable hot corners.
V-230809 Medium The macOS system must be configured to disable the system preference pane for Internet Accounts.
V-230806 Medium The macOS system must be configured to disable Remote Apple Events.
V-230807 Medium The macOS system must be configured to disable the application Calendar.
V-230804 Medium The macOS system must be configured to disable Siri and dictation.
V-230805 Medium The macOS system must be configured to disable sending diagnostic and usage data to Apple.
V-230802 Medium The macOS system must cover or disable the built-in or attached camera when not in use.
V-245546 Medium The macOS system must be configured to disable the system preference pane for Siri.
V-245545 Medium The macOS system must be configured to disable the system preference pane for TouchID.
V-245548 Medium The macOS system must be configured to disable the system preference pane for Wallet & ApplePay.
V-230811 Medium The macOS system must be configured to disable the Privacy Setup services.
V-230810 Medium The macOS system must be configured to disable the Cloud Setup services.
V-230812 Medium The macOS system must be configured to disable the Cloud Storage Setup services.
V-230815 Medium The macOS system must disable iCloud Keychain synchronization.
V-230814 Medium The macOS system must be configured to disable the Siri Setup services.
V-230819 Medium The macOS system must disable the Screen Sharing feature.
V-230818 Medium The macOS system must disable iCloud photo library.
V-230792 Medium The macOS system must be configured to disable Internet Sharing.
V-230793 Medium The macOS system must be configured to disable Web Sharing.
V-230790 Medium The macOS system must be configured to disable Bonjour multicast advertising.
V-230791 Medium The macOS system must be configured to disable the UUCP service.
V-230781 Medium The macOS system must allocate audit record storage capacity to store at least one week's worth of audit records when audit records are not immediately sent to a central audit record storage facility.
V-230780 Medium The macOS system must audit the enforcement actions used to restrict access associated with changes to the system.
V-230783 Medium The macOS system must provide an immediate real-time alert to the System Administrator (SA) and Information System Security Officer (ISSO), at a minimum, of all audit failure events requiring real-time alerts.
V-230782 Medium The macOS system must provide an immediate warning to the System Administrator (SA) and Information System Security Officer (ISSO) (at a minimum) when allocated audit record storage volume reaches 75 percent of repository maximum audit record storage capacity.
V-230785 Medium The macOS system must accept and verify Personal Identity Verification (PIV) credentials, implement a local cache of revocation data to support path discovery and validation in case of the inability to access revocation information via the network, and only allow the use of DoD PKI-established certificate authorities to verify the establishment of protected sessions.
V-230784 Medium The macOS system must generate audit records for DoD-defined events such as successful/unsuccessful logon attempts, successful/unsuccessful direct access attempts, starting and ending time for user access, and concurrent logons to the same account from different sources.
V-230787 Medium The macOS system must be configured to disable SMB File Sharing unless it is required.
V-230786 Medium The macOS system must require individuals to be authenticated with an individual authenticator prior to using a group authenticator.
V-230789 Medium The macOS system must be configured to disable Location Services.
V-230788 Medium The macOS system must be configured to disable the Network File System (NFS) daemon unless it is required.
V-230817 Medium The macOS system must disable iCloud bookmark synchronization.
V-230816 Medium The macOS system must disable iCloud document synchronization.
V-230778 Medium The macOS system must be configured with audit log files set to mode 440 or less permissive.
V-230779 Medium The macOS system must be configured with audit log folders set to mode 700 or less permissive.
V-230774 Medium The macOS system must be configured with audit log files owned by root.
V-230775 Medium The macOS system must be configured with audit log folders owned by root.
V-230776 Medium The macOS system must be configured with audit log files group-owned by wheel.
V-230777 Medium The macOS system must be configured with audit log folders group-owned by wheel.
V-230770 Medium The macOS system must generate audit records for all account creations, modifications, disabling, and termination events; privileged activities or other system-level access; all kernel module load, unload, and restart actions; all program initiations; and organizationally defined events for all non-local maintenance and diagnostic sessions.
V-230771 Medium The macOS system must monitor remote access methods and generate audit records when successful/unsuccessful attempts to access/modify privileges occur.
V-230772 Medium The macOS system must initiate session audits at system startup, using internal clocks with time stamps for audit records that meet a minimum granularity of one second and can be mapped to Coordinated Universal Time (UTC) or Greenwich Mean Time (GMT), to generate audit records containing information to establish what type of events occurred, the identity of any individual or process associated with the event, including individual identities of group account users, establish where the events occurred, source of the event, and outcome of the events including all account enabling actions, full-text recording of privileged commands, and information about the use of encryption for access wireless access to and from the system.
V-230773 Medium The macOS system must shut down by default upon audit failure (unless availability is an overriding concern).
V-230769 Medium The macOS system must implement an approved Key Exchange Algorithm.
V-230768 Medium The macOS system must use only Message Authentication Codes (MACs) employing FIPS 140-2 validated cryptographic hash algorithms.
V-230767 Medium The macOS system must implement approved ciphers to protect the confidentiality of SSH connections.
V-230766 Medium The macOS system must be configured with the SSH daemon LoginGraceTime set to 30 or less.
V-230765 Medium The macOS system must be configured with the SSH daemon ClientAliveCountMax option set to 0.
V-230764 Medium The macOS system must be configured with the SSH daemon ClientAliveInterval option set to 900 or less.
V-230763 Medium The macOS system must be configured to disable password forwarding for FileVault2.
V-230762 Medium The macOS system must be configured with dedicated user accounts to decrypt the hard disk upon startup.
V-230761 Medium The macOS system must be configured so that log folders must not contain access control lists (ACLs).
V-230760 Medium The macOS system must be configured so that log files must not contain access control lists (ACLs).
V-230842 Medium The macOS system must be configured with system log files owned by root and group-owned by wheel or admin.
V-230843 Medium The macOS system must be configured with system log files set to mode 640 or less permissive.
V-230840 Medium The macOS system must be configured so that the su command requires smart card authentication.
V-230841 Medium The macOS system must be configured so that the sudo command requires smart card authentication.
V-230846 Medium The macOS system must implement cryptographic mechanisms to protect the confidentiality and integrity of all information at rest.
V-230847 Medium The macOS Application Firewall must be enabled.
V-230845 Medium The macOS system must enable System Integrity Protection.
V-230828 Medium The macOS system must authenticate peripherals before establishing a connection.
V-250320 Medium The macOS system must restrict the ability to utilize external writeable media devices.
V-230820 Medium The macOS system must allow only applications that have a valid digital signature to run.
V-230825 Medium The macOS system must not allow an unattended or automatic logon to the system.
V-230826 Medium The macOS system must prohibit user installation of software without explicit privileged status.
V-230827 Medium The macOS system must set permissions on user home directories to prevent users from having access to read or modify another user's files.
V-230752 Medium The macOS system must automatically remove or disable temporary and emergency user accounts after 72 hours.
V-230753 Medium The macOS system must, for networked systems, compare internal information system clocks at least every 24 hours with a server that is synchronized to one of the redundant United States Naval Observatory (USNO) time servers or a time server designated for the appropriate DoD network (NIPRNet/SIPRNet) and/or the Global Positioning System (GPS).
V-230750 Medium The macOS system must be configured with Wi-Fi support software disabled.
V-230751 Medium The macOS system must disable the SSHD service.
V-230756 Medium The macOS system must enforce the limit of three consecutive invalid logon attempts by a user before the user account is locked.
V-230757 Medium The macOS system must display the Standard Mandatory DoD Notice and Consent Banner before granting remote access to the operating system.
V-230754 Medium The macOS system must utilize an Endpoint Security Solution (ESS) and implement all DoD required modules.
V-230758 Medium The macOS system must display the Standard Mandatory DoD Notice and Consent Banner before granting access to the system via SSH.
V-230759 Medium The macOS system must be configured so that any connection to the system must display the Standard Mandatory DoD Notice and Consent Banner before granting GUI access to the system.
V-230748 Low The macOS system must conceal, via the session lock, information previously visible on the display with a publicly viewable image.
V-230800 Low The macOS system must be configured to disable the Mail iCloud services.
V-230801 Low The macOS system must be configured to disable the iCloud Notes services.
V-230798 Low The macOS system must be configured to disable the iCloud Reminders services.
V-230799 Low The macOS system must be configured to disable iCloud Address Book services.
V-230794 Low The macOS system must be configured to disable AirDrop.
V-230797 Low The macOS system must be configured to disable the iCloud Calendar services.
V-252698 Low The macOS system must be configured with Bluetooth turned off unless approved by the organization.