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Guide to the Secure Configuration of Red Hat Enterprise Linux CoreOS 4

Rules, Groups, and Values defined within the XCCDF Benchmark

  • Protect Physical Console Access

    It is impossible to fully protect a system from an attacker with physical access, so securing the space in which the system is located should be co...
    Group
  • Login timeout for idle sessions

    Specify duration of allowed idle time.
    Value
  • Disable debug-shell SystemD Service

    SystemD's <code>debug-shell</code> service is intended to diagnose SystemD related boot issues with various <code>systemctl</code> commands. Once e...
    Rule Medium Severity
  • Verify that Interactive Boot is Disabled

    Red Hat Enterprise Linux CoreOS 4 systems support an "interactive boot" option that can be used to prevent services from being started. On a Red Ha...
    Rule Medium Severity
  • Ensure there are no legacy + NIS entries in /etc/group

    The <code>+</code> character in <code>/etc/group</code> file marks a place where entries from a network information service (NIS) should be directl...
    Rule Medium Severity
  • Disable Ctrl-Alt-Del Burst Action

    By default, <code>SystemD</code> will reboot the system if the <code>Ctrl-Alt-Del</code> key sequence is pressed Ctrl-Alt-Delete more than 7 times ...
    Rule High Severity
  • Disable Ctrl-Alt-Del Reboot Activation

    By default, <code>SystemD</code> will reboot the system if the <code>Ctrl-Alt-Del</code> key sequence is pressed. <br><br> To configure the system ...
    Rule High Severity
  • Verify that Interactive Boot is Disabled

    Red Hat Enterprise Linux CoreOS 4 systems support an "interactive boot" option that can be used to prevent services from being started. On a Red Ha...
    Rule Medium Severity
  • Require Authentication for Single User Mode

    Single-user mode is intended as a system recovery method, providing a single user root access to the system by providing a boot option at startup. ...
    Rule Medium Severity
  • Configure Screen Locking

    When a user must temporarily leave an account logged-in, screen locking should be employed to prevent passersby from abusing the account. User educ...
    Group

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