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Guide to the Secure Configuration of Oracle Linux 7

Rules, Groups, and Values defined within the XCCDF Benchmark

  • Disable XDMCP in GDM

    XDMCP is an unencrypted protocol, and therefore, presents a security risk, see e.g. <a href="https://help.gnome.org/admin/gdm/stable/security.html.en_GB#xdmcpsecurity">XDMCP Gnome docs</a>. To dis...
    Rule High Severity
  • GNOME Media Settings

    GNOME media settings that apply to the graphical interface.
    Group
  • Install sudo Package

    The sudo package can be installed with the following command:
    $ sudo yum install sudo
    Rule Medium Severity
  • Disable GNOME3 Automounting

    The system's default desktop environment, GNOME3, will mount devices and removable media (such as DVDs, CDs and USB flash drives) whenever they are inserted into the system. To disable automount wi...
    Rule Medium Severity
  • Disable GNOME3 Automount Opening

    The system's default desktop environment, GNOME3, will mount devices and removable media (such as DVDs, CDs and USB flash drives) whenever they are inserted into the system. To disable automount-op...
    Rule Medium Severity
  • Disable GNOME3 Automount running

    The system's default desktop environment, GNOME3, will mount devices and removable media (such as DVDs, CDs and USB flash drives) whenever they are inserted into the system. To disable autorun-neve...
    Rule Low Severity
  • Disable All GNOME3 Thumbnailers

    The system's default desktop environment, GNOME3, uses a number of different thumbnailer programs to generate thumbnails for any new or modified content in an opened folder. To disable the executio...
    Rule Unknown Severity
  • GNOME Network Settings

    GNOME network settings that apply to the graphical interface.
    Group
  • Disable WIFI Network Connection Creation in GNOME3

    <code>GNOME</code> allows users to create ad-hoc wireless connections through the <code>NetworkManager</code> applet. Wireless connections should be disabled by adding or setting <code>disable-wifi...
    Rule Medium Severity
  • Disable WIFI Network Notification in GNOME3

    By default, <code>GNOME</code> disables WIFI notification. This should be permanently set so that users do not connect to a wireless network when the system finds one. While useful for mobile devic...
    Rule Medium Severity
  • GNOME Remote Access Settings

    GNOME remote access settings that apply to the graphical interface.
    Group
  • Require Credential Prompting for Remote Access in GNOME3

    By default, <code>GNOME</code> does not require credentials when using <code>Vino</code> for remote access. To configure the system to require remote credentials, add or set <code>authentication-me...
    Rule Medium Severity
  • Require Encryption for Remote Access in GNOME3

    By default, <code>GNOME</code> requires encryption when using <code>Vino</code> for remote access. To prevent remote access encryption from being disabled, add or set <code>require-encryption</code...
    Rule Medium Severity
  • Screensaver Inactivity timeout

    Choose allowed duration (in seconds) of inactive graphical sessions
    Value
  • Screensaver Lock Delay

    Choose allowed duration (in seconds) after a screensaver becomes active before displaying an authentication prompt
    Value
  • Ensure Users Cannot Change GNOME3 Screensaver Idle Activation

    If not already configured, ensure that users cannot change GNOME3 screensaver lock settings by adding <pre>/org/gnome/desktop/screensaver/idle-activation-enabled</pre> to <code>/etc/dconf/db/local....
    Rule Medium Severity
  • Set GNOME3 Screensaver Inactivity Timeout

    The idle time-out value for inactivity in the GNOME3 desktop is configured via the <code>idle-delay</code> setting must be set under an appropriate configuration file(s) in the <code>/etc/dconf/db/...
    Rule Medium Severity
  • Sudo

    <code>Sudo</code>, which stands for "su 'do'", provides the ability to delegate authority to certain users, groups of users, or system administrators. When configured for system users and/or groups...
    Group
  • Enable GNOME3 Screensaver Lock After Idle Period

    To activate locking of the screensaver in the GNOME3 desktop when it is activated, add or set <code>lock-enabled</code> to <code>true</code> in <code>/etc/dconf/db/local.d/00-security-settings</co...
    Rule Medium Severity
  • Ensure Users Cannot Change GNOME3 Screensaver Lock After Idle Period

    If not already configured, ensure that users cannot change GNOME3 screensaver lock settings by adding <pre>/org/gnome/desktop/screensaver/lock-enabled</pre> to <code>/etc/dconf/db/local.d/locks/00-...
    Rule Medium Severity

The content of the drawer really is up to you. It could have form fields, definition lists, text lists, labels, charts, progress bars, etc. Spacing recommendation is 24px margins. You can put tabs in here, and can also make the drawer scrollable.

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