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CIS Ubuntu 20.04 Level 1 Server Benchmark

Rules and Groups employed by this XCCDF Profile

  • Ensure /tmp Located On Separate Partition

    The /tmp directory is a world-writable directory used for temporary file storage. Ensure it has its own partition or logical volume at installation time, or migrate it using LVM.
    Rule Low Severity
  • GNOME Desktop Environment

    GNOME is a graphical desktop environment bundled with many Linux distributions that allow users to easily interact with the operating system graphically rather than textually. The GNOME Graphical D...
    Group
  • Remove the GDM Package Group

    By removing the <code>gdm3</code> package, the system no longer has GNOME installed installed. If X Windows is not installed then the system cannot boot into graphical user mode. This prevents th...
    Rule Medium Severity
  • Sudo

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

    The sudo package can be installed with the following command:
    $ apt-get install sudo
    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 making sure that the <code>use_pty</code> tag exists...
    Rule Medium Severity
  • Ensure Sudo Logfile Exists - sudo logfile

    A custom log sudo file can be configured with the 'logfile' tag. This rule configures a sudo custom logfile at the default location suggested by CIS, which uses /var/log/sudo.log.
    Rule Low 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
  • Warning Banners for System Accesses

    Each system should expose as little information about itself as possible. <br> <br> System banners, which are typically displayed just before a login prompt, give out information about the s...
    Group
  • Modify the System Login Banner

    To configure the system login banner edit <code>/etc/issue</code>. Replace the default text with a message compliant with the local site policy or a legal disclaimer. The DoD required text is ei...
    Rule Medium Severity

The content of the drawer really is up to you. It could have form fields, definition lists, text lists, labels, charts, progress bars, etc. Spacing recommendation is 24px margins. You can put tabs in here, and can also make the drawer scrollable.

Capacity
Modules