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Linux RHEL-10-701050

DISA STIG RHEL-10-701050 (CAT I): RHEL 10 must prevent the loading of a new kernel for later execution.

DISA STIG recommends

RHEL-10-701050 CAT I

RHEL 10 must prevent the loading of a new kernel for later execution.

NIST SP 800-53: CM-14

Check

Verify RHEL 10 is configured to disable kernel image loading. Check the status of the "kernel.kexec_load_disabled" kernel parameter with the following command: $ sudo sysctl kernel.kexec_load_disabled kernel.kexec_load_disabled = 1 If "kernel.kexec_load_disabled" is not set to "1" or is missing, this is a finding.

Fix

Configure RHEL 10 to disable kernel image loading. Create a drop-in if it does not already exist: $ sudo vi /etc/sysctl.d/99-kernel_kexec_load_disabled.conf Add the following to the file: kernel.kexec_load_disabled = 1 Reload settings from all system configuration files with the following command: $ sudo sysctl --system

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