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ANSSI-BP-028 (minimal)

Rules and Groups employed by this XCCDF Profile

  • System Settings

    Contains rules that check correct system settings.
    Group
  • Installing and Maintaining Software

    The following sections contain information on security-relevant choices during the initial operating system installation process and the setup of software updates.
    Group
  • Updating Software

    The <code>dnf</code> command line tool is used to install and update software packages. The system also provides a graphical software update tool in the <b>System</b> menu, in the <b>Administration...
    Group
  • Install dnf-automatic Package

    The dnf-automatic package can be installed with the following command:
    $ sudo dnf install dnf-automatic
    Rule Medium Severity
  • Configure dnf-automatic to Install Available Updates Automatically

    To ensure that the packages comprising the available updates will be automatically installed by <code>dnf-automatic</code>, set <code>apply_updates</code> to <code>yes</code> under <code>[commands]...
    Rule Medium Severity
  • Configure dnf-automatic to Install Only Security Updates

    To configure <code>dnf-automatic</code> to install only security updates automatically, set <code>upgrade_type</code> to <code>security</code> under <code>[commands]</code> section in <code>/etc/dn...
    Rule Low Severity
  • Ensure gpgcheck Enabled In Main dnf Configuration

    The <code>gpgcheck</code> option controls whether RPM packages' signatures are always checked prior to installation. To configure dnf to check package signatures before installing them, ensure the ...
    Rule High Severity
  • Ensure gpgcheck Enabled for Local Packages

    <code>dnf</code> should be configured to verify the signature(s) of local packages prior to installation. To configure <code>dnf</code> to verify signatures of local packages, set the <code>localpk...
    Rule High Severity
  • Ensure gpgcheck Enabled for All dnf Package Repositories

    To ensure signature checking is not disabled for any repos, remove any lines from files in /etc/yum.repos.d of the form:
    gpgcheck=0
    Rule High Severity
  • Ensure Oracle Linux GPG Key Installed

    To ensure the system can cryptographically verify base software packages come from Oracle (and to connect to the Unbreakable Linux Network to receive them), the Oracle GPG key must properly be inst...
    Rule High Severity
  • Ensure Software Patches Installed



    NOTE: U.S. Defense systems are required to be patched within 30 days or sooner as local policy dictates.
    Rule Medium Severity
  • Enable dnf-automatic Timer

    The dnf-automatic timer can be enabled with the following command:
    $ sudo systemctl enable dnf-automatic.timer
    Rule Medium Severity
  • Account and Access Control

    In traditional Unix security, if an attacker gains shell access to a certain login account, they can perform any action or access any file to which that account has access. Therefore, making it mor...
    Group
  • Enable authselect

    Configure user authentication setup to use the <code>authselect</code> tool. If authselect profile is selected, the rule will enable the <xccdf-1.2:sub idref="xccdf_org.ssgproject.content_value_var...
    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
  • 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
  • Limit Password Reuse

    Do not allow users to reuse recent passwords. This can be accomplished by using the remember option for the pam_unix or pam_pwhistory PAM modules.
    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
  • Configure the root Account for Failed Password Attempts

    This rule configures the system to lock out the <code>root</code> account after a number of incorrect login attempts using <code>pam_faillock.so</code>. pam_faillock.so module requires multiple en...
    Rule Medium Severity
  • Set Interval For Counting Failed Password Attempts

    Utilizing <code>pam_faillock.so</code>, the <code>fail_interval</code> directive configures the system to lock out an account after a number of incorrect login attempts within a specified time peri...
    Rule Medium Severity

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