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RHEL-10-701200 RHEL 10 must disable the kdump service.

DISA STIG library V1R3
All changes in this version
first version loaded CAT II

Maps to SC-24 via CCI-001665

Title

RHEL 10 must disable the kdump service.

Control

Verify RHEL 10 disables the kdump service in system boot configuration with the following command: $ sudo systemctl is-enabled kdump masked Verify the kdump service is not active (i.e., not running) through current runtime configuration with the following command: $ sudo systemctl is-active kdump failed Verify the kdump service is masked with the following command: $ sudo systemctl show kdump | grep "LoadState\|UnitFileState" LoadState=masked UnitFileState=masked If the "kdump" service is loaded or active and is not masked, this is a finding.

Discussion

Kernel core dumps may contain the full contents of system memory at the time of the crash. Kernel core dumps consume a considerable amount of disk space and may result in denial of service by exhausting the available space on the target file system partition. Unless the system is used for kernel development or testing, there is little need to run the kdump service.

Related controls

CCI-001665

Fix

Configure RHEL 10 to disable and mask the kdump service. To disable the kdump service, run the following command: $ sudo systemctl disable --now kdump Removed '/etc/systemd/system/multi-user.target.wants/kdump.service'. To mask the kdump service, run the following command: $ sudo systemctl mask --now kdump Created symlink '/etc/systemd/system/kdump.service' ? '/dev/null'.