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Guide to the Secure Configuration of Ubuntu 18.04

Rules, Groups, and Values defined within the XCCDF Benchmark

  • number of days after the last login of the user when the user will be locked out

    'This option is specific for the auth or account phase. It specifies the number of days after the last login of the user when the user will be lock...
    Value
  • number of days after a password expires until the account is permanently disabled

    The number of days to wait after a password expires, until the account will be permanently disabled.
    Value
  • Ensure All Accounts on the System Have Unique Names

    Ensure accounts on the system have unique names. To ensure all accounts have unique names, run the following command: <pre>$ sudo getent passwd | ...
    Rule Medium Severity
  • Use Centralized and Automated Authentication

    Implement an automated system for managing user accounts that minimizes the risk of errors, either intentional or deliberate. This system should in...
    Rule Medium Severity
  • Set Password Expiration Parameters

    The file <code>/etc/login.defs</code> controls several password-related settings. Programs such as <code>passwd</code>, <code>su</code>, and <code>...
    Group
  • maximum password age

    Maximum age of password in days
    Value
  • minimum password age

    Minimum age of password in days
    Value
  • minimum password length

    Minimum number of characters in password
    Value
  • warning days before password expires

    The number of days' warning given before a password expires.
    Value
  • Ensure There Are No Accounts With Blank or Null Passwords

    Check the "/etc/shadow" file for blank passwords with the following command: <pre>$ sudo awk -F: '!$2 {print $1}' /etc/shadow</pre> If the command ...
    Rule High Severity

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