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Disable Recovery Booting

An XCCDF Rule

Description

Red Hat Enterprise Linux CoreOS 4 systems support an "recovery boot" option that can be used to prevent services from being started. The GRUB_DISABLE_RECOVERY configuration option in /etc/default/grub should be set to true to disable the generation of recovery mode menu entries. It is also required to change the runtime configuration, run:

$ sudo grubby --update-kernel=ALL

Rationale

Using recovery boot, the console user could disable auditing, firewalls, or other services, weakening system security.

ID
xccdf_org.ssgproject.content_rule_grub2_disable_recovery
Severity
Medium
References
Updated