Azure Kubernetes Service (AKS)
TMA-AKS-3.1.1
Ensure that the kubeconfig file permissions are set to 644 or more restrictive
MediaNivel 1Automatizadaaks
Descripción
If the kubelet is configured to use a kubeconfig file, ensure that the kubelet kubeconfig file permissions are set to 644 or more restrictive. Runs on each AKS node (kubeconfig path from the kubelet --kubeconfig argument).
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 kubeconfig)
f=""; for x in ${p0:-} /var/lib/kubelet/kubeconfig; do if [ -e "$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 below command (based on the file location on your system) on the each worker node. For example, chmod 644 <kubeconfig file>
Propiedades
- Sistemas operativos
- Cualquiera
- Etiquetas
- aksworker-nodefile-permissions
- Referencia
- CIS Azure Kubernetes Service (AKS) Benchmark v2.0.0 - 3.1.1 Ensure that the kubeconfig file permissions are set to 644 or more restrictive
Verificar este host
Ejecute esto en un equipo que tenga permiso para auditar. El escaneo es de solo lectura.
shell
tmaegis scan --target aks