Ensure auditing is configured for Docker files and directories - /var/lib/docker

MediumLevel 1Automateddocker

Description

Auditing /var/lib/docker records changes to and use of a security-relevant Docker/containerd component, supporting incident investigation. The audit lists the loaded kernel audit rules (auditctl -l, needs root) and looks for a watch or path rule on /var/lib/docker. Not applicable when /var/lib/docker is not present. If data-root points elsewhere, audit that directory instead (this check looks for /var/lib/docker).

How it is checked

Audit method: Shell command

shell

out=$(auditctl -l 2>/dev/null) || exit 1; printf '%s\n' "$out" | grep -Eq -e '[ =]/var/lib/docker/?( |$)' && echo compliant || echo missing

Expected output: compliant

How it is fixed

Fix method: Guidance or infrastructure patch

Add '-w /var/lib/docker -k docker' to /etc/audit/rules.d/docker.rules, then load it with 'augenrules --load' (or restart auditd).

Properties

Operating systems: Any
Tags: dockerauditdhost
Reference: CIS Docker Benchmark v1.9.0 - 1.1.5 Ensure auditing is configured for Docker files and directories - /var/lib/docker

Check this host

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

shell

tmaegis scan --target docker