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RHEL-09-213090 RHEL 9 must disable storing core dumps.

DISA STIG library V2R10
All changes in this version
first version loaded CAT II

Maps to CM-6 via CCI-000366

Title

RHEL 9 must disable storing core dumps.

Control

Note: If kernel dumps are disabled in accordance with RHEL-09-213040, this requirement is not applicable. Verify RHEL 9 disables storing core dumps for all users by issuing the following command: $ grep -i storage /etc/systemd/coredump.conf Storage=none 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.

Discussion

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 or system operators trying to debug problems. Enabling core dumps on production systems is not recommended; however, there may be overriding operational requirements to enable advanced debugging. Permitting temporary enablement of core dumps during such situations must be reviewed through local needs and policy.

Related controls

CCI-000366

Fix

Configure the operating system to disable storing core dumps for all users. Add or modify the following line in /etc/systemd/coredump.conf: Storage=none