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Guide to the Secure Configuration of Fedora

Rules, Groups, and Values defined within the XCCDF Benchmark

  • SSH server uses strong entropy to seed

    To set up SSH server to use entropy from a high-quality source, edit the <code>/etc/sysconfig/sshd</code> file. The <code>SSH_USE_STRONG_RNG</code>...
    Rule Low Severity
    Show

  • Prevent remote hosts from connecting to the proxy display

    The SSH daemon should prevent remote hosts from connecting to the proxy display. <br> The default SSH configuration for <code>X11UseLocalhost</code...
    Rule Medium Severity
    Show

  • Strengthen Firewall Configuration if Possible

    If the SSH server is expected to only receive connections from the local network, then strengthen the default firewall rule for the SSH service to ...
    Group
    Show

  • System Security Services Daemon

    The System Security Services Daemon (SSSD) is a system daemon that provides access to different identity and authentication providers such as Red H...
    Group
    Show

  • SSSD certificate_verification option

    Value of the certificate_verification option in the SSSD config.
    Value
    Show

  • SSSD memcache_timeout option

    Value of the memcache_timeout option in the [nss] section of SSSD config /etc/sssd/sssd.conf.
    Value
    Show

  • SSSD ssh_known_hosts_timeout option

    Value of the ssh_known_hosts_timeout option in the [ssh] section of SSSD configuration file /etc/sssd/sssd.conf.
    Value
    Show

  • Install sssd-ipa Package

    The sssd-ipa package can be installed with the following command: 
    $ sudo dnf install sssd-ipa
    Rule Medium Severity
    Show

  • Enable the SSSD Service

    The SSSD service should be enabled. The <code>sssd</code> service can be enabled with the following command: <pre>$ sudo systemctl enable sssd.ser...
    Rule Medium Severity
    Show

  • Certificate status checking in SSSD

    Multifactor solutions that require devices separate from information systems gaining access include, for example, hardware tokens providing time-ba...
    Rule Medium Severity
    Show

  • Enable Smartcards in SSSD

    SSSD should be configured to authenticate access to the system using smart cards. To enable smart cards in SSSD, set <code>pam_cert_auth</code> to ...
    Rule Medium Severity
    Show

  • Configure SSSD's Memory Cache to Expire

    SSSD's memory cache should be configured to set to expire records after <code><xccdf-1.2:sub idref="xccdf_org.ssgproject.content_value_var_sssd_mem...
    Rule Medium Severity
    Show

  • Configure SSSD to Expire Offline Credentials

    SSSD should be configured to expire offline credentials after 1 day. To configure SSSD to expire offline credentials, set <code>offline_credential...
    Rule Medium Severity
    Show

  • Configure SSSD to run as user sssd

    SSSD processes should be configured to run as user sssd, not root.
    Rule Medium Severity
    Show

  • Configure SSSD to Expire SSH Known Hosts

    SSSD should be configured to expire keys from known SSH hosts after <code><xccdf-1.2:sub idref="xccdf_org.ssgproject.content_value_var_sssd_ssh_kno...
    Rule Medium Severity
    Show

  • System Security Services Daemon (SSSD) - LDAP

    The System Security Services Daemon (SSSD) is a system daemon that provides access to different identity and authentication providers such as Red H...
    Group
    Show

  • SSSD LDAP Backend Client CA Certificate Location

    Path of a directory that contains Certificate Authority certificates.
    Value
    Show

  • USBGuard daemon

    The USBGuard daemon enforces the USB device authorization policy for all USB devices.
    Group
    Show

  • Install usbguard Package

    The usbguard package can be installed with the following command: 
    $ sudo dnf install usbguard
    Rule Medium Severity
    Show

  • Enable the USBGuard Service

    The USBGuard service should be enabled. The <code>usbguard</code> service can be enabled with the following command: <pre>$ sudo systemctl enable ...
    Rule Medium Severity
    Show

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