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I - Mission Critical Classified

Rules and Groups employed by this XCCDF Profile

  • SRG-OS-000028-GPOS-00009

    <GroupDescription></GroupDescription>
    Group
  • The macOS system must enforce screen saver password.

    &lt;VulnDiscussion&gt;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.

    &lt;VulnDiscussion&gt;A screen saver must be enabled and the system must be configured to require a password to unlock once the screensaver has bee...
    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.

    &lt;VulnDiscussion&gt;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.

    &lt;VulnDiscussion&gt;Hot corners must be disabled. The information system conceals, via the session lock, information previously visible on the d...
    Rule Medium Severity
  • SRG-OS-000029-GPOS-00010

    <GroupDescription></GroupDescription>
    Group
  • The macOS system must prevent AdminHostInfo from being available at LoginWindow.

    &lt;VulnDiscussion&gt;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.

    &lt;VulnDiscussion&gt;The macOS is able to 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.

    &lt;VulnDiscussion&gt;Time synchronization must be enforced on all networked systems. This rule ensures the uniformity of time stamps for informat...
    Rule Medium Severity
  • SRG-OS-000191-GPOS-00080

    <GroupDescription></GroupDescription>
    Group
  • The macOS system must employ automated mechanisms to determine the state of system components.

    &lt;VulnDiscussion&gt;The macOS system must employ automated mechanisms to determine the state of system components. The DOD requires the installat...
    Rule Medium Severity
  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
  • The macOS system must be integrated into a directory services infrastructure.

    &lt;VulnDiscussion&gt;A directory service infrastructure enables centralized user and rights management, as well as centralized control over comput...
    Rule Medium Severity
  • SRG-OS-000021-GPOS-00005

    <GroupDescription></GroupDescription>
    Group
  • The macOS system must limit consecutive failed log on attempts to three.

    &lt;VulnDiscussion&gt;The macOS must be configured to limit the number of failed log on attempts to a maximum of three. When the maximum number of ...
    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 remote log on.

    &lt;VulnDiscussion&gt;Displaying a standardized and approved use notification before granting access to the operating system ensures that users are...
    Rule Medium Severity
  • SRG-OS-000023-GPOS-00006

    <GroupDescription></GroupDescription>
    Group
  • The macOS system must enforce SSH to display the Standard Mandatory DOD Notice and Consent Banner.

    &lt;VulnDiscussion&gt;Displaying a standardized and approved use notification before granting access to the operating system ensures that users are...
    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.

    &lt;VulnDiscussion&gt;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.

    &lt;VulnDiscussion&gt;The audit log files must not contain access control lists (ACLs). This rule ensures that audit information and audit files a...
    Rule Medium Severity
  • SRG-OS-000057-GPOS-00027

    <GroupDescription></GroupDescription>
    Group
  • The macOS system must configure audit log folders to not contain access control lists.

    &lt;VulnDiscussion&gt;The audit log folder must not contain access control lists (ACLs). Audit logs contain sensitive data about the system and us...
    Rule Medium Severity
  • SRG-OS-000080-GPOS-00048

    <GroupDescription></GroupDescription>
    Group
  • The macOS system must disable FileVault automatic log on.

    &lt;VulnDiscussion&gt;If FileVault is enabled, automatic log on must be disabled, so that both FileVault and login window authentication are requir...
    Rule Medium Severity
  • SRG-OS-000163-GPOS-00072

    <GroupDescription></GroupDescription>
    Group
  • The macOS system must configure SSHD ClientAliveInterval to 900.

    &lt;VulnDiscussion&gt;If SSHD is enabled, then it must be configured with the Client Alive Interval set to 900. 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.

    &lt;VulnDiscussion&gt;If SSHD is enabled it must be configured with the Client Alive Maximum Count set to 1. This will set the number of client al...
    Rule Medium Severity
  • SRG-OS-000163-GPOS-00072

    <GroupDescription></GroupDescription>
    Group
  • The macOS system must set Login Grace Time to 30.

    &lt;VulnDiscussion&gt;If SSHD is enabled, then it must be configured to wait only 30 seconds before timing out logon attempts. Note: /etc/ssh/sshd...
    Rule Medium Severity
  • SRG-OS-000033-GPOS-00014

    <GroupDescription></GroupDescription>
    Group
  • The macOS system must limit SSHD to FIPS-compliant connections.

    &lt;VulnDiscussion&gt;If SSHD is enabled then it must be configured to limit the Ciphers, HostbasedAcceptedAlgorithms, HostKeyAlgorithms, KexAlgori...
    Rule High Severity
  • SRG-OS-000033-GPOS-00014

    <GroupDescription></GroupDescription>
    Group
  • The macOS system must limit SSH to FIPS-compliant connections.

    &lt;VulnDiscussion&gt;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.

    &lt;VulnDiscussion&gt;The macOS must be configured to enforce a lockout time period of at least 15 minutes when the maximum number of failed logon ...
    Rule Medium Severity
  • SRG-OS-000029-GPOS-00010

    <GroupDescription></GroupDescription>
    Group
  • The macOS system must enforce screen saver timeout.

    &lt;VulnDiscussion&gt;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-000080-GPOS-00048

    <GroupDescription></GroupDescription>
    Group
  • The macOS system must enable SSH server for remote access sessions.

    &lt;VulnDiscussion&gt;Remote access sessions must use encrypted methods to protect unauthorized individuals from gaining access. Satisfies: SRG-OS...
    Rule Medium Severity
  • SRG-OS-000104-GPOS-00051

    <GroupDescription></GroupDescription>
    Group
  • The macOS system must disable logon to other user's active and locked sessions.

    &lt;VulnDiscussion&gt;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

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