I - Mission Critical Public
Rules and Groups employed by this XCCDF Profile
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SRG-OS-000028-GPOS-00009
<GroupDescription></GroupDescription>Group -
The macOS system must prevent Apple Watch from terminating a session lock.
<VulnDiscussion>Apple Watches are not an approved authenticator and their use must be disabled. Disabling Apple Watches is a necessary step ...Rule Medium Severity -
SRG-OS-000028-GPOS-00009
<GroupDescription></GroupDescription>Group -
The macOS system must enforce screen saver password.
<VulnDiscussion>Users must authenticate when unlocking the screen saver. The screen saver acts as a session lock and prevents unauthorized u...Rule Medium Severity -
SRG-OS-000028-GPOS-00009
<GroupDescription></GroupDescription>Group -
The macOS system must enforce session lock no more than five seconds after screen saver is started.
<VulnDiscussion>A screen saver must be enabled and the system must be configured to require a password to unlock once the screen saver has be...Rule Medium Severity -
SRG-OS-000030-GPOS-00011
<GroupDescription></GroupDescription>Group -
The macOS system must configure user session lock when a smart token is removed.
<VulnDiscussion>The screen lock must be configured to initiate automatically when the smart token is removed from the system. Session locks ...Rule Medium Severity -
SRG-OS-000031-GPOS-00012
<GroupDescription></GroupDescription>Group -
The macOS system must disable hot corners.
<VulnDiscussion>Hot corners must be disabled. The information system conceals, via the session lock, information previously visible on the d...Rule Medium Severity -
SRG-OS-000031-GPOS-00012
<GroupDescription></GroupDescription>Group -
The macOS system must prevent AdminHostInfo from being available at LoginWindow.
<VulnDiscussion>The system must be configured to not display sensitive information at the LoginWindow. The key AdminHostInfo, when configured...Rule Medium Severity -
SRG-OS-000002-GPOS-00002
<GroupDescription></GroupDescription>Group -
The macOS system must automatically remove or disable temporary or emergency user accounts within 72 hours.
<VulnDiscussion>The macOS system can be configured to set an automated termination for 72 hours or less for all temporary or emergency accoun...Rule Medium Severity -
SRG-OS-000355-GPOS-00143
<GroupDescription></GroupDescription>Group -
The macOS system must enforce time synchronization.
<VulnDiscussion>Time synchronization must be enforced on all networked systems. This rule ensures the uniformity of time stamps for informat...Rule Medium Severity -
SRG-OS-000021-GPOS-00005
<GroupDescription></GroupDescription>Group -
The macOS system must limit consecutive failed login attempts to three.
<VulnDiscussion>The macOS must be configured to limit the number of failed login attempts to a maximum of three. When the maximum number of f...Rule Medium Severity -
SRG-OS-000023-GPOS-00006
<GroupDescription></GroupDescription>Group -
The macOS system must display a policy banner at remote login.
<VulnDiscussion>Remote login service must be configured to display a policy banner at login. Displaying a standardized and approved use noti...Rule Medium Severity -
SRG-OS-000023-GPOS-00006
<GroupDescription></GroupDescription>Group -
The macOS system must display the Standard Mandatory DOD Notice and Consent Banner at the login window.
<VulnDiscussion>Displaying a standardized and approved use notification before granting access to the operating system ensures that users are...Rule Medium Severity -
SRG-OS-000057-GPOS-00027
<GroupDescription></GroupDescription>Group -
The macOS system must configure audit log files to not contain access control lists (ACLs).
<VulnDiscussion>The audit log files must not contain ACLs. This rule ensures that audit information and audit files are configured to be rea...Rule Medium Severity -
SRG-OS-000057-GPOS-00027
<GroupDescription></GroupDescription>Group -
The macOS system must configure the audit log folder to not contain access control lists (ACLs).
<VulnDiscussion>The audit log folder must not contain ACLs. Audit logs contain sensitive data about the system and users. This rule ensures ...Rule Medium Severity -
SRG-OS-000080-GPOS-00048
<GroupDescription></GroupDescription>Group -
The macOS system must disable FileVault automatic login.
<VulnDiscussion>If FileVault is enabled, automatic login must be disabled so that both FileVault and login window authentication are required...Rule Medium Severity -
SRG-OS-000163-GPOS-00072
<GroupDescription></GroupDescription>Group -
The macOS system must configure SSHD ClientAliveInterval to 900.
<VulnDiscussion>If SSHD is enabled, it must be configured with the Client Alive Interval set to 900. This sets a timeout interval in seconds...Rule Medium Severity -
SRG-OS-000163-GPOS-00072
<GroupDescription></GroupDescription>Group -
The macOS system must configure SSHD ClientAliveCountMax to 1.
<VulnDiscussion>If SSHD is enabled, it must be configured with the Client Alive Maximum Count set to 1. This will set the number of client a...Rule Medium Severity -
SRG-OS-000163-GPOS-00072
<GroupDescription></GroupDescription>Group -
The macOS system must set login grace time to 30.
<VulnDiscussion>If SSHD is enabled, it must be configured to wait only 30 seconds before timing out login attempts. NOTE: /etc/ssh/sshd_conf...Rule Medium Severity -
SRG-OS-000033-GPOS-00014
<GroupDescription></GroupDescription>Group -
The macOS system must limit SSHD to FIPS-compliant connections.
<VulnDiscussion>If SSHD is enabled, it must be configured to limit the Ciphers, HostbasedAcceptedAlgorithms, HostKeyAlgorithms, KexAlgorithms...Rule High Severity -
SRG-OS-000033-GPOS-00014
<GroupDescription></GroupDescription>Group -
The macOS system must limit SSH to FIPS-compliant connections.
<VulnDiscussion>SSH must be configured to limit the Ciphers, HostbasedAcceptedAlgorithms, HostKeyAlgorithms, KexAlgorithms, MACs, PubkeyAccep...Rule High Severity -
SRG-OS-000021-GPOS-00005
<GroupDescription></GroupDescription>Group -
The macOS system must set account lockout time to 15 minutes.
<VulnDiscussion>The macOS system must be configured to enforce a lockout time period of at least 15 minutes when the maximum number of failed...Rule Medium Severity -
SRG-OS-000029-GPOS-00010
<GroupDescription></GroupDescription>Group -
The macOS system must enforce screen saver timeout.
<VulnDiscussion>The screen saver timeout must be set to 900 seconds or a shorter length of time. This rule ensures that a full session lock ...Rule Medium Severity -
SRG-OS-000104-GPOS-00051
<GroupDescription></GroupDescription>Group -
The macOS system must disable login to other users' active and locked sessions.
<VulnDiscussion>The ability to log in to another user's active or locked session must be disabled. macOS has a privilege that can be granted...Rule Medium Severity -
SRG-OS-000104-GPOS-00051
<GroupDescription></GroupDescription>Group -
The macOS system must disable root login.
<VulnDiscussion>To assure individual accountability and prevent unauthorized access, logging in as root at the login window must be disabled....Rule Medium Severity -
SRG-OS-000163-GPOS-00072
<GroupDescription></GroupDescription>Group -
The macOS system must configure the SSH ServerAliveInterval to 900.
<VulnDiscussion>SSH must be configured with an Active Server Alive Maximum Count set to 900. Setting the Active Server Alive Maximum Count t...Rule Medium Severity -
SRG-OS-000163-GPOS-00072
<GroupDescription></GroupDescription>Group -
The macOS system must configure SSHD channel timeout to 900.
<VulnDiscussion>If SSHD is enabled, it must be configured with session ChannelTimeout set to 900. This will set the timeout when the session...Rule Medium Severity
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