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← Back to Red Hat Enterprise Linux 10 Security Technical Implementation Guide

V-281320

CAT II (Medium)

RHEL 10 must disable acquiring, saving, and processing core dumps.

Rule ID

SV-281320r1184635_rule

STIG

Red Hat Enterprise Linux 10 Security Technical Implementation Guide

Version

V1R1

CCIs

CCI-002165

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 trying to debug problems.

Check Content

Note: If kernel dumps are disabled in accordance with RHEL-10-701090, this requirement is not applicable.

Verify RHEL 10 is not configured to acquire, save, or process core dumps with the following command:

$ sudo systemctl status systemd-coredump.socket
o systemd-coredump.socket
    Loaded: masked (Reason: Unit systemd-coredump.socket is masked.)
    Active: inactive (dead)
    ...

If the "systemd-coredump.socket" is loaded and not masked, and the need for core dumps is not documented with the information system security officer as an operational requirement, this is a finding.

Fix Text

Configure RHEL 10 to disable the systemd-coredump.socket with the following command:

$ sudo systemctl mask --now systemd-coredump.socket
Created symlink /etc/systemd/system/systemd-coredump.socket -> /dev/null

Reload the daemon for this change to take effect.

$ sudo systemctl daemon-reload