Ensure that Linux kernel capabilities are restricted within containers

OrtaDüzey 1Otomatikdocker

Açıklama

Containers should run with the minimum Linux capabilities; the benchmark specifically asks for NET_RAW to be dropped unless required. Flags containers whose CapDrop contains neither ALL nor NET_RAW (review CapAdd separately). The audit inspects every running container (docker ps -q) and prints the offending names; a host with no running containers is compliant.

Nasıl denetlenir

Denetim yöntemi: Kabuk komutu

shell

ids=$(docker ps -q) || exit 1; [ -z "$ids" ] && { echo compliant; exit 0; }; out=$(docker inspect --format '{{.Name}} {{range .HostConfig.CapDrop}}{{.}},{{end}}' $ids) || exit 1; bad=$(printf '%s\n' "$out" | awk 'toupper($0) !~ /(^| |,)(CAP_)?(ALL|NET_RAW),/ {print $1}'); [ -z "$bad" ] && echo compliant || printf '%s\n' "$bad"

Beklenen çıktı: compliant

Nasıl düzeltilir

Düzeltme yöntemi: Kılavuz veya altyapı yaması

Run containers with --cap-drop=ALL (or at least --cap-drop=NET_RAW) and add back only required capabilities with --cap-add.

Özellikler

İşletim sistemleri: Herhangi biri
Etiketler: dockerruntime
Referans: CIS Docker Benchmark v1.9.0 - 5.4 Ensure that Linux kernel capabilities are restricted within containers

Bu ana makineyi denetle

Bunu denetleme izniniz olan bir makinede çalıştırın. Tarama salt okunurdur.

shell

tmaegis scan --target docker