Guide to the Secure Configuration of Red Hat Enterprise Linux 8
Rules, Groups, and Values defined within the XCCDF Benchmark
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Disable the virt_transition_userdomain SELinux Boolean
By default, the SELinux boolean <code>virt_transition_userdomain</code> is disabled. If this setting is enabled, it should be disabled. To disable the <code>virt_transition_userdomain</code> SELin...Rule Medium Severity -
Disable the xdm_write_home SELinux Boolean
By default, the SELinux boolean <code>xdm_write_home</code> is disabled. If this setting is enabled, it should be disabled. To disable the <code>xdm_write_home</code> SELinux boolean, run the foll...Rule Medium Severity -
Disable the xguest_connect_network SELinux Boolean
By default, the SELinux boolean <code>xguest_connect_network</code> is enabled. This setting should be disabled as guest users should not be able to configure <code>NetworkManager</code>. To disab...Rule Medium Severity -
Disable the zoneminder_run_sudo SELinux Boolean
By default, the SELinux boolean <code>zoneminder_run_sudo</code> is disabled. If this setting is enabled, it should be disabled. To disable the <code>zoneminder_run_sudo</code> SELinux boolean, ru...Rule Medium Severity -
Services
The best protection against vulnerable software is running less software. This section describes how to review the software which Red Hat Enterprise Linux 8 installs on a system and disable softwar...Group -
Disable Avahi Server Software
Theavahi-daemon
service can be disabled with the following command:$ sudo systemctl mask --now avahi-daemon.service
Rule Medium Severity -
Disable Automatic Bug Reporting Tool (abrtd)
The Automatic Bug Reporting Tool (<code>abrtd</code>) daemon collects and reports crash data when an application crash is detected. Using a variety of plugins, abrtd can email crash reports to syst...Rule Medium Severity -
Verify Group Who Owns cron.daily
To properly set the group owner of/etc/cron.daily
, run the command:$ sudo chgrp root /etc/cron.daily
Rule Medium Severity -
Disable Cyrus SASL Authentication Daemon (saslauthd)
The <code>saslauthd</code> service handles plaintext authentication requests on behalf of the SASL library. The service isolates all code requiring superuser privileges for SASL authentication into...Rule Low Severity -
Name Service Switch does not use NIS
Each call to a function which retrieves data from a system database like the password or group database is handled by the Name Service Switch implementation in the GNU C library. The various servi...Rule Medium Severity
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