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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