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Guide to the Secure Configuration of Alibaba Cloud Linux 2

Rules, Groups, and Values defined within the XCCDF Benchmark

  • 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
  • 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
  • System Tooling / Utilities

    The following checks evaluate the system for recommended base packages -- both for installation and removal.
    Group
  • Ensure gnutls-utils is installed

    The gnutls-utils package can be installed with the following command:
    $ sudo yum install gnutls-utils
    Rule Medium Severity
  • Ensure nss-tools is installed

    The nss-tools package can be installed with the following command:
    $ sudo yum install nss-tools
    Rule Medium Severity
  • minclass

    Minimum number of categories of characters that must exist in a password
    Value
  • Updating Software

    The <code>yum</code> command line tool is used to install and update software packages. The system also provides a graphical software update tool i...
    Group
  • Ensure gpgcheck Enabled In Main yum Configuration

    The <code>gpgcheck</code> option controls whether RPM packages' signatures are always checked prior to installation. To configure yum to check pack...
    Rule High Severity
  • Ensure gpgcheck Enabled for All yum 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 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

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