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Guide to the Secure Configuration of Ubuntu 16.04

Rules, Groups, and Values defined within the XCCDF Benchmark

  • 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
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  • Action for auditd to take when disk space is low

    The setting for admin_space_left_action in /etc/audit/auditd.conf
    Value
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  • Hardware Tokens for Authentication

    The use of hardware tokens such as smart cards for system login provides stronger, two-factor authentication than using a username and password. I...
    Group
    Show

  • Don't target root user in the sudoers file

    The targeted users of a user specification should be, as much as possible, non privileged users (i.e.: non-root). User specifications have to expl...
    Rule Medium Severity
    Show

  • System Tooling / Utilities

    The following checks evaluate the system for recommended base packages -- both for installation and removal.
    Group
    Show

  • Ensure gnutls-utils is installed

    The gnutls-utils package can be installed with the following command: 
    $ apt-get install gnutls-utils
    Rule Medium Severity
    Show

  • Ensure nss-tools is installed

    The nss-tools package can be installed with the following command: 
    $ apt-get install nss-tools
    Rule Medium Severity
    Show

  • 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 to...
    Group
    Show

  • Ensure Software Patches Installed

    If the system has an apt repository available, run the following command to install updates: <pre>$ apt update &amp;&amp; apt full-upgrade</pre> ...
    Rule Medium Severity
    Show

  • 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
    Show

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