Ensure that the etcd data directory permissions are set to 700 or more restrictive

How it is checked

Audit method: Shell command

set -f
a=$(ps -eo args 2>/dev/null | grep -E '^([^ ]*/)?etcd( |$)' | head -n 1)
[ -n "$a" ] || a=$(cat /etc/kubernetes/manifests/etcd.yaml 2>/dev/null | tr '\n' ' ')
d=$(printf '%s\n' "$a" | tr ' "' '\n\n' | sed -n 's/^--data-dir=//p' | tail -n 1); d=${d:-/var/lib/etcd}
[ -d "$d" ] || exit 1
p=$(stat -Lc %a "$d") || exit 1
if [ $((0$p & 0077)) -eq 0 ]; then echo compliant; else echo "noncompliant: $d mode $p"; fi

Expected output

compliant

How it is fixed

Fix method: Guidance or infrastructure patch

On the etcd server node, get the etcd data directory, passed as an argument --data-dir, from the below command: ps -ef | grep etcd Run the below command (based on the etcd data directory found above). For example, chmod 700 /var/lib/etcd

Check this host

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

tmaegis scan --target kubernetes