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CIS Ubuntu 20.04 Level 2 Server Benchmark

Rules and Groups employed by this XCCDF Profile

  • Verify ownership of System Login Banner

    To properly set the owner of /etc/issue, run the command:
    $ sudo chown root /etc/issue 
    Rule Medium Severity
  • Verify ownership of System Login Banner for Remote Connections

    To properly set the owner of /etc/issue.net, run the command:
    $ sudo chown root /etc/issue.net 
    Rule Medium Severity
  • Verify ownership of Message of the Day Banner

    To properly set the owner of /etc/motd, run the command:
    $ sudo chown root /etc/motd 
    Rule Medium Severity
  • Verify permissions on System Login Banner

    To properly set the permissions of /etc/issue, run the command:
    $ sudo chmod 0644 /etc/issue
    Rule Medium Severity
  • Verify permissions on System Login Banner for Remote Connections

    To properly set the permissions of /etc/issue.net, run the command:
    $ sudo chmod 0644 /etc/issue.net
    Rule Medium Severity
  • Verify permissions on Message of the Day Banner

    To properly set the permissions of /etc/motd, run the command:
    $ sudo chmod 0644 /etc/motd
    Rule Medium Severity
  • 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 confi...
    Group
  • Install pam_pwquality Package

    The libpam-pwquality package can be installed with the following command:
    $ apt-get install libpam-pwquality
    Rule Medium Severity
  • 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 documentati...
    Group
  • Limit Password Reuse

    Do not allow users to reuse recent passwords. This can be accomplished by using the <code>remember</code> option for the <code>pam_pwhistory</code>...
    Rule Medium Severity

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