Ensure auditing for processes that start prior to auditd is enabled

How it is checked

Audit method: Shell command

alt0() { command -v grep >/dev/null 2>&1 || { echo "step1: grep not installed"; return 1; }; o=$(bash -c 'grep "^\s*linux" /boot/grub2/grub.cfg | grep -v "audit=1"' 2>/dev/null); [ -z "$o" ] || { echo "step1: $o" | head -c 300; return 1; }; }; if alt0; then echo compliant; fi

Expected output

compliant

How it is fixed

Fix method: Guidance or infrastructure patch

Edit /etc/default/grub and add audit=1 to GRUB_CMDLINE_LINUX: GRUB_CMDLINE_LINUX="audit=1" Run the following command to update the grub2 configuration: # grub2-mkconfig -o /boot/grub2/grub.cfg

Check this host

Run this on a machine you are allowed to audit. The scan is read-only.

tmaegis scan --target linux --level 2