Ensure that incoming container traffic is bound to a specific host interface

MediaNivel 1Automatizadadocker

Descripción

Ports published without a host IP listen on all interfaces (0.0.0.0 / ::), exposing the service on every network the host is attached to. The audit inspects every running container (docker ps -q) and prints the offending names; a host with no running containers is compliant.

Cómo se verifica

Método de auditoría: Comando de shell

shell

ids=$(docker ps -q) || exit 1; [ -z "$ids" ] && { echo compliant; exit 0; }; out=$(docker inspect --format '{{.Name}}{{range $p, $c := .NetworkSettings.Ports}}{{range $c}} [{{.HostIp}}]{{end}}{{end}}' $ids) || exit 1; bad=$(printf '%s\n' "$out" | awk '{for(i=2;i<=NF;i++) if($i=="[]" || $i=="[0.0.0.0]" || $i=="[::]") {print $1; break}}'); [ -z "$bad" ] && echo compliant || printf '%s\n' "$bad"

Salida esperada: compliant

Cómo se corrige

Método de corrección: Guía o parche de infraestructura

Republish the container bound to a specific interface, e.g. docker run -p 10.2.3.4:49153:80 ... (compose: "10.2.3.4:49153:80").

Propiedades

Sistemas operativos: Cualquiera
Etiquetas: dockerruntimenetwork
Referencia: CIS Docker Benchmark v1.9.0 - 5.14 Ensure that incoming container traffic is bound to a specific host interface

Verificar este host

Ejecute esto en un equipo que tenga permiso para auditar. El escaneo es de solo lectura.

shell

tmaegis scan --target docker