Detections
Analytics
UBTU-20-010413 - The Ubuntu operating system must disable kernel core dumps so that it can fail to a secure state if system initialization fails, shutdown fails or aborts fail.
Information
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.Solution
If kernel core dumps are not required, disable the 'kdump' service with the following command:$ sudo systemctl disable kdump.service
If kernel core dumps are required, document the need with the ISSO.
See Also
https://dl.dod.cyber.mil/wp-content/uploads/stigs/zip/U_CAN_Ubuntu_20-04_LTS_V1R12_STIG.zip
Item Details
Audit Name: DISA STIG Ubuntu 20.04 LTS v1r12
Category: SYSTEM AND COMMUNICATIONS PROTECTION
References: 800-53|SC-24, CAT|II, CCI|CCI-001190, Rule-ID|SV-238334r654177_rule, STIG-ID|UBTU-20-010413, Vuln-ID|V-238334
Plugin: Unix
Control ID: 0ee2b0ea7aa0253400d746e4ce91bc5fa89bed3ba56a25e190ef1da33f4cf5f2