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Guide to the Secure Configuration of OpenEmbedded

Rules, Groups, and Values defined within the XCCDF Benchmark

  • Configure Samba if Necessary

    All settings for the Samba daemon can be found in <code>/etc/samba/smb.conf</code>. Settings are divided between a <code>[global]</code> configurat...
    Group
  • Postfix relayhost

    Specify the host all outbound email should be routed into.
    Value
  • Postfix Root Mail Alias

    Specify an email address (string) for a root mail alias.
    Value
  • The Chrony package is installed

    System time should be synchronized between all systems in an environment. This is typically done by establishing an authoritative time server or se...
    Rule Medium Severity
  • Install the ntp service

    The ntpd service should be installed.
    Rule High Severity
  • 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
  • Verify No netrc Files Exist

    The <code>.netrc</code> files contain login information used to auto-login into FTP servers and reside in the user's home directory. These files ma...
    Rule Medium Severity
  • Maximum login attempts delay

    Maximum time in seconds between fail login attempts before re-prompting.
    Value
  • Maximum concurrent login sessions

    Maximum number of concurrent sessions by a user
    Value
  • Account Inactivity Timeout (seconds)

    In an interactive shell, the value is interpreted as the number of seconds to wait for input after issuing the primary prompt. Bash terminates afte...
    Value

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