Amazon EKS
TMA-EKS-4.2.1
Minimize the admission of privileged containers
Описание
Minimize the admission of privileged containers in EKS by enforcing Pod Security Standards through Pod Security Admission or an equivalent policy engine, and restrict privileged workloads to only the limited system or platform namespaces that truly require them. Requires kubectl with cluster-wide read access (KUBECONFIG); system namespaces are excluded and listed resources must be remediated or documented as exceptions.
Как проверяется
Метод проверки: Команда оболочки
out=$(kubectl get pods -A -o go-template='{{range .items}}{{$ns:=.metadata.namespace}}{{$p:=.metadata.name}}{{range .spec.containers}}{{$ns}} {{$p}} {{.name}} {{with .securityContext}}{{.privileged}}{{end}}{{"\n"}}{{end}}{{range .spec.initContainers}}{{$ns}} {{$p}} {{.name}} {{with .securityContext}}{{.privileged}}{{end}}{{"\n"}}{{end}}{{range .spec.ephemeralContainers}}{{$ns}} {{$p}} {{.name}} {{with .securityContext}}{{.privileged}}{{end}}{{"\n"}}{{end}}{{end}}') || exit 1
bad=$(printf '%s\n' "$out" | awk -v ex='^(kube-system|kube-public|kube-node-lease)$' 'NF && $1 !~ ex && ($4=="true")')
if [ -z "$bad" ]; then echo compliant; else printf '%s\n' "$bad" | head -n 25; fi- Ожидаемый вывод
compliant
Как исправляется
Метод исправления: Рекомендация или патч инфраструктуры
Configure Pod Security Admission on workload namespaces so privileged containers are denied when new pods are created. In EKS, Pod Security Standards are applied through namespace labels, and current AWS guidance is to enforce at least baseline cluster-wide and restricted for workload namespaces. For this control, both baseline and restricted disallow privileged containers, but restricted is typically the stronger choice for user workloads. Only enforce blocks noncompliant pods. warn and audit are useful during rollout, but they do not remediate the issue by themselves. • Label each workload namespace to enforce restricted. kubectl label ns NAMESPACE pod-security.kubernetes.io/enforce=restricted --overwrite • Add warn and audit labels during transition so violations are surfaced before or alongside enforcement.
Свойства
- Операционные системы
- Любая
- Теги
- ekspoliciespod-security
- Источник
- CIS Amazon Elastic Kubernetes Service (EKS) Benchmark v2.0.0 - 4.2.1 Minimize the admission of privileged containers
Проверить этот хост
Выполните команду на компьютере, аудит которого вам разрешён. Сканирование работает только на чтение.
tmaegis scan --target eks