Amazon EKS
TMA-EKS-4.2.3
Minimize the admission of containers wishing to share the host IPC namespace
Deskripsi
Minimize the admission of pods that request spec.hostIPC: true in EKS so that host IPC namespace sharing is limited to tightly controlled, explicitly approved platform use cases. In the EKS Pod Security Standards model, this is done through Pod Security Admission or an equivalent policy engine, and AWS recommends enforcing at least the baseline profile cluster-wide and the restricted profile for workload namespaces. Requires kubectl with cluster-wide read access (KUBECONFIG); system namespaces are excluded and listed resources must be remediated or documented as exceptions.
Cara pemeriksaan
Metode audit: Perintah shell
out=$(kubectl get pods -A -o go-template='{{range .items}}{{.metadata.namespace}} {{.metadata.name}} {{.spec.hostIPC}}{{"\n"}}{{end}}') || exit 1
bad=$(printf '%s\n' "$out" | awk -v ex='^(kube-system|kube-public|kube-node-lease)$' 'NF && $1 !~ ex && ($3=="true")')
if [ -z "$bad" ]; then echo compliant; else printf '%s\n' "$bad" | head -n 25; fi- Output yang diharapkan
compliant
Cara perbaikan
Metode perbaikan: Panduan atau patch infrastruktur
Configure Pod Security Admission on workload namespaces so pods that request spec.hostIPC: true are denied at admission time. In current EKS guidance, the baseline Pod Security Standard prohibits hostIPC, restricted inherits that restriction, and AWS recommends using Pod Security Standards in EKS to limit risky pod settings through namespace-based enforcement. For remediation, use enforce because AWS documents that only enforce rejects violating pods. warn and audit can help during rollout, but they do not block admission. • Label each workload namespace to enforce restricted. kubectl label ns NAMESPACE pod-security.kubernetes.io/enforce=restricted --overwrite • Add warn and audit during transition if you want visibility into violations before or alongside enforcement.
Properti
- Sistem operasi
- Apa saja
- Tag
- ekspoliciespod-security
- Referensi
- CIS Amazon Elastic Kubernetes Service (EKS) Benchmark v2.0.0 - 4.2.3 Minimize the admission of containers wishing to share the host IPC namespace
Periksa host ini
Jalankan ini pada mesin yang diizinkan untuk Anda audit. Pemindaian bersifat hanya baca.
tmaegis scan --target eks