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CIS Red Hat Enterprise Linux 9 Benchmark for Level 1 - Server

Rules and Groups employed by this XCCDF Profile

  • Verify Group Ownership of System Login Banner for Remote Connections

    To properly set the group owner of /etc/issue.net, run the command:
    $ sudo chgrp root /etc/issue.net
    Rule Medium Severity
  • Verify Group Ownership of Message of the Day Banner

    To properly set the group owner of /etc/motd, run the command:
    $ sudo chgrp root /etc/motd
    Rule Medium Severity
  • Verify ownership of System Login Banner

    To properly set the owner of /etc/issue, run the command:
    $ sudo chown root /etc/issue 
    Rule Medium Severity
  • Verify ownership of System Login Banner for Remote Connections

    To properly set the owner of /etc/issue.net, run the command:
    $ sudo chown root /etc/issue.net 
    Rule Medium Severity
  • Verify ownership of Message of the Day Banner

    To properly set the owner of /etc/motd, run the command:
    $ sudo chown root /etc/motd 
    Rule Medium Severity
  • Verify permissions on System Login Banner

    To properly set the permissions of /etc/issue, run the command:
    $ sudo chmod 0644 /etc/issue
    Rule Medium Severity
  • Verify permissions on System Login Banner for Remote Connections

    To properly set the permissions of /etc/issue.net, run the command:
    $ sudo chmod 0644 /etc/issue.net
    Rule Medium Severity
  • Verify permissions on Message of the Day Banner

    To properly set the permissions of /etc/motd, run the command:
    $ sudo chmod 0644 /etc/motd
    Rule Medium Severity
  • Implement a GUI Warning Banner

    In the default graphical environment, users logging directly into the system are greeted with a login screen provided by the GNOME Display Manager (GDM). The warning banner should be displayed in t...
    Group
  • Enable GNOME3 Login Warning Banner

    In the default graphical environment, displaying a login warning banner in the GNOME Display Manager's login screen can be enabled on the login screen by setting <code>banner-message-enable</code> ...
    Rule Medium Severity
  • Set the GNOME3 Login Warning Banner Text

    In the default graphical environment, configuring the login warning banner text in the GNOME Display Manager's login screen can be configured on the login screen by setting <code>banner-message-tex...
    Rule Medium Severity
  • Protect Accounts by Configuring PAM

    PAM, or Pluggable Authentication Modules, is a system which implements modular authentication for Linux programs. PAM provides a flexible and configurable architecture for authentication, and it sh...
    Group
  • Install pam_pwquality Package

    The libpwquality package can be installed with the following command:
    $ sudo dnf install libpwquality
    Rule Medium Severity
  • Set Lockouts for Failed Password Attempts

    The <code>pam_faillock</code> PAM module provides the capability to lock out user accounts after a number of failed login attempts. Its documentation is available in <code>/usr/share/doc/pam-VERSIO...
    Group
  • Configure the Use of the pam_faillock.so Module in the /etc/pam.d/password-auth File.

    The pam_faillock.so module must be loaded in preauth in /etc/pam.d/password-auth.
    Rule Medium Severity
  • Configure the Use of the pam_faillock.so Module in the /etc/pam.d/system-auth File.

    The pam_faillock.so module must be loaded in preauth in /etc/pam.d/system-auth.
    Rule Medium Severity
  • Limit Password Reuse: password-auth

    Do not allow users to reuse recent passwords. This can be accomplished by using the <code>remember</code> option for the <code>pam_pwhistory</code> PAM module. <br> <br> On systems with n...
    Rule Medium Severity
  • Limit Password Reuse: system-auth

    Do not allow users to reuse recent passwords. This can be accomplished by using the <code>remember</code> option for the <code>pam_pwhistory</code> PAM module. <br> <br> On systems with n...
    Rule Medium Severity
  • Lock Accounts After Failed Password Attempts

    This rule configures the system to lock out accounts after a number of incorrect login attempts using <code>pam_faillock.so</code>. pam_faillock.so module requires multiple entries in pam files. Th...
    Rule Medium Severity
  • Set Lockout Time for Failed Password Attempts

    This rule configures the system to lock out accounts during a specified time period after a number of incorrect login attempts using <code>pam_faillock.so</code>. Ensure that the file <code>/etc/s...
    Rule Medium Severity

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