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ANSSI-BP-028 (high)

Rules and Groups employed by this XCCDF Profile

  • Sudo

    <code>Sudo</code>, which stands for "su 'do'", provides the ability to delegate authority to certain users, groups of users, or system administrato...
    Group
  • Install sudo Package

    The sudo package can be installed with the following command:
    $ sudo dnf install sudo
    Rule Medium Severity
  • Ensure Privileged Escalated Commands Cannot Execute Other Commands - sudo NOEXEC

    The sudo <code>NOEXEC</code> tag, when specified, prevents user executed commands from executing other commands, like a shell for example. This sho...
    Rule High Severity
  • Ensure Only Users Logged In To Real tty Can Execute Sudo - sudo requiretty

    The sudo <code>requiretty</code> tag, when specified, will only execute sudo commands from users logged in to a real tty. This should be enabled by...
    Rule Medium Severity
  • Ensure Only Users Logged In To Real tty Can Execute Sudo - sudo use_pty

    The sudo <code>use_pty</code> tag, when specified, will only execute sudo commands from users logged in to a real tty. This should be enabled by ma...
    Rule Medium Severity
  • Ensure Users Re-Authenticate for Privilege Escalation - sudo !authenticate

    The sudo <code>!authenticate</code> option, when specified, allows a user to execute commands using sudo without having to authenticate. This shoul...
    Rule Medium Severity
  • Ensure Users Re-Authenticate for Privilege Escalation - sudo NOPASSWD

    The sudo <code>NOPASSWD</code> tag, when specified, allows a user to execute commands using sudo without having to authenticate. This should be dis...
    Rule Medium Severity
  • Explicit arguments in sudo specifications

    All commands in the sudoers file must strictly specify the arguments allowed to be used for a given user. If the command is supposed to be executed...
    Rule Medium Severity
  • Don't define allowed commands in sudoers by means of exclusion

    Policies applied by sudo through the sudoers file should not involve negation. Each user specification in the <code>sudoers</code> file contains a...
    Rule Medium Severity
  • 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 i...
    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...
    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> unde...
    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 pack...
    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 s...
    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 <code>/etc/yum.repos.d</code> of the form: <pre>gpgcheck...
    Rule High Severity
  • Ensure Red Hat GPG Key Installed

    To ensure the system can cryptographically verify base software packages come from Red Hat (and to connect to the Red Hat Network to receive them),...
    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...
    Group

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