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Canonical Ubuntu 20.04 LTS Security Technical Implementation Guide (STIG) V1R12

Rules and Groups employed by this XCCDF Profile

  • Enable GNOME3 Screensaver Lock After Idle Period

    To activate locking of the screensaver in the GNOME3 desktop when it is activated, add or set <code>lock-enabled</code> to <code>true</code> in <code>/etc/dconf/db/local.d/00-security-settings</co...
    Rule Medium Severity
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  • GNOME System Settings

    GNOME provides configuration and functionality to a graphical desktop environment that changes grahical configurations or allow a user to perform actions that users normally would not be able to do...
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  • Disable Ctrl-Alt-Del Reboot Key Sequence in GNOME3

    By default, <code>GNOME</code> will reboot the system if the <code>Ctrl-Alt-Del</code> key sequence is pressed. <br> <br> To configure the system to ignore the <code>Ctrl-Alt-Del</code> ke...
    Rule High Severity
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  • 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...
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  • Ensure Users Re-Authenticate for Privilege Escalation - sudo

    The sudo <code>NOPASSWD</code> and <code>!authenticate</code> option, when specified, allows a user to execute commands using sudo without having to authenticate. This should be disabled by making ...
    Rule Medium Severity
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  • Updating Software

    The <code>apt_get</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>Administra...
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  • Ensure apt_get Removes Previous Package Versions

    <code>apt_get</code> should be configured to remove previous software components after new versions have been installed. To configure <code>apt_get</code> to remove the previous software component...
    Rule Low Severity
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  • 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...
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  • 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...
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  • Modify the System Login Banner for Remote Connections

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

    The libpam-pwquality package can be installed with the following command: 
    $ apt-get install libpam-pwquality
    Rule Medium Severity
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  • Ensure PAM Displays Last Logon/Access Notification

    To configure the system to notify users of last logon/access using <code>pam_lastlog</code>, add or correct the <code>pam_lastlog</code> settings in <code>/etc/pam.d/login</code> to include <code>s...
    Rule Low Severity
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  • 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...
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  • 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
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  • Enforce Delay After Failed Logon Attempts

    To configure the system to introduce a delay after failed logon attempts, add or correct the <code>pam_faildelay</code> settings in <code>/etc/pam.d/common-auth</code> to make sure its <code>delay<...
    Rule Medium Severity
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  • Account Lockouts Must Be Logged

    PAM faillock locks an account due to excessive password failures, this event must be logged.
    Rule Medium Severity
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siemur/test-space

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.

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