Ensure that Docker's default bridge "docker0" is not used

DüşükDüzey 2Otomatikdocker

Açıklama

Containers on the default bridge (docker0) can reach each other without restriction and are exposed to ARP spoofing; user-defined networks should be used. Flags containers attached to the network named bridge. 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 $n, $_ := .NetworkSettings.Networks}} {{$n}}{{end}}' $ids) || exit 1; bad=$(printf '%s\n' "$out" | awk '{for(i=2;i<=NF;i++) if($i=="bridge") {print $1; break}}'); [ -z "$bad" ] && echo compliant || printf '%s\n' "$bad"

Beklenen çıktı: compliant

Nasıl düzeltilir

Düzeltme yöntemi: Kılavuz veya altyapı yaması

Create user-defined networks (docker network create ...) and attach containers to them instead of the default bridge.

Özellikler

İşletim sistemleri: Herhangi biri
Etiketler: dockerruntimenetwork
Referans: CIS Docker Benchmark v1.9.0 - 5.30 Ensure that Docker's default bridge "docker0" is not used

Bu ana makineyi denetle

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

shell

tmaegis scan --target docker --level 2