It is detrimental for operating systems to provide, or install by default, functionality exceeding requirements or mission objectives. These unnecessary capabilities or services are often overlooked and therefore may remain unsecured. They increase the risk to the platform by providing additional attack vectors.
A core dump includes a memory image taken at the time the operating system terminates an application. The memory image could contain sensitive data and is generally useful only for developers trying to debug problems.
Verify the operating system disables storing core dumps for all users with the following command:
$ sudo grep -i storage /etc/systemd/coredump.conf
If the "Storage" item is missing or commented out or the value is anything other than "none", and the need for core dumps is not documented with the Information System Security Officer (ISSO) as an operational requirement for all domains that have the "core" item assigned, this is a finding.
Fix Text (F-52020r779461_fix)
Configure OL 8 to disable storing core dumps for all users.
Add or modify the following line in "/etc/systemd/coredump.conf":