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Guide to the Secure Configuration of SUSE Linux Enterprise 12

Rules, Groups, and Values defined within the XCCDF Benchmark

  • Ensure zypper Removes Previous Package Versions

    <code>zypper</code> should be configured to remove previous software components after new versions have been installed. To configure <code>zypper</code> to remove the previous software components ...
    Rule Low 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
  • 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
  • fail_deny

    Number of failed login attempts before account lockout
    Value
  • faillock directory

    The directory where the user files with the failure records are kept
    Value
  • Ensure gpgcheck Enabled for Local Packages

    <code>zypper</code> should be configured to verify the signature(s) of local packages prior to installation. To configure <code>zypper</code> to verify signatures of local packages, set the <code>l...
    Rule High Severity
  • Ensure gpgcheck Enabled for All zypper 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 package manager repositories are configured

    Systems need to have package manager repositories configured to ensure they receive the latest patches and updates.
    Rule Medium Severity
  • Ensure Software Patches Installed

    If the system is configured for online updates, invoking the following command will list available security updates: <pre>$ sudo zypper refresh &amp;&amp; sudo zypper list-patches -g security</pre...
    Rule Medium Severity

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