TMA-GKE-3.1.3
Ensure that the kubelet configuration file has permissions set to 644
MediaNivel 1Automatizadagke
Descripción
Ensure that if the kubelet refers to a configuration file with the --config argument, that file has permissions of 644 or more restrictive. Runs on each GKE node (path from the kubelet argument). 644 or more restrictive passes.
Cómo se verifica
Método de auditoría: Comando de shell
shell
set -f
psarg() { ps -eo args 2>/dev/null | grep -E "^([^ ]*/)?$1( |\$)" | head -n 1 | awk -v k="--$2" '{for(i=1;i<=NF;i++){if($i==k&&i<NF)v=$(i+1); else if(index($i,k"=")==1)v=substr($i,length(k)+2)}} END{if(v!="")print v}'; }
p0=$(psarg kubelet config)
f=""; for x in ${p0:-} /etc/kubernetes/kubelet-config.yaml; do if [ -e "$x" ]; then f=$x; break; fi; done
[ -n "$f" ] || exit 1
p=$(stat -Lc %a "$f") || exit 1
if [ $((0$p & 0133)) -eq 0 ]; then echo compliant; else echo "noncompliant: $f mode $p"; fi- Salida esperada
compliant
Cómo se corrige
Método de corrección: Guía o parche de infraestructura
Run the following command (using the kubelet config file location): chmod 644 <kubelet_config_file>
Propiedades
- Sistemas operativos
- Cualquiera
- Etiquetas
- gkeworker-nodekubeletfile-permissions
- Referencia
- CIS Google Kubernetes Engine (GKE) Benchmark v2.0.0 - 3.1.3 Ensure that the kubelet configuration file has permissions set to 644
Verificar este host
Ejecute esto en un equipo que tenga permiso para auditar. El escaneo es de solo lectura.
shell
tmaegis scan --target gke