Title

Kernel core dumps must be disabled unless needed. (Cat II impact)

Discussion

Kernel core dumps may contain the full contents of system memory at the time of the crash. Kernel core dumps may 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.

Check Content

Verify that kernel core dumps are disabled unless needed. Check if "kdump" service is active with the following command: # systemctl is-active kdump.service inactive If the "kdump" service is active, ask the System Administrator if the use of the service is required and documented with the Information System Security Officer (ISSO). If the service is active and is not documented, this is a finding.

Fix Text

If kernel core dumps are not required, disable the "kdump" service with the following command: # systemctl disable kdump.service If kernel core dumps are required, document the need with the Information System Security Officer (ISSO).

Additional Identifiers

Rule ID: SV-219335r610963_rule

Vulnerability ID: V-219335

Group Title: SRG-OS-000184-GPOS-00078

Expert Comments

CCIs tied to check.

Controls tied to check. These are derived from the CCIs shown above.