Enable MAC spoof filtering

СредњаНиво 1Аутоматскаopenshift-virt

Опис

Mac spoof filtering is a feature that helps prevent man - in - the - middle attacks by verifying the authenticity of MAC addresses in network packets. By checking the MAC address of incoming packets, mac - spoof filtering can help ensure that only authorized devices are able to communicate with a particular device or network. Audit: Passes when every SR-IOV network has spoofChk "on" and every bridge-type NetworkAttachmentDefinition sets macspoofchk to true (needs jq). OVN Kubernetes localnet filters MAC spoofing by default. Requires oc logged in to the cluster with read access.

Како се проверава

Метод провере: Команда љуске

shell

command -v oc >/dev/null 2>&1 || exit 1; command -v jq >/dev/null 2>&1 || exit 1; s=$(oc get sriovnetwork -A -o json 2>/dev/null || echo '{"items":[]}'); n=$(oc get network-attachment-definitions -A -o json) || exit 1; b1=$(printf '%s' "$s" | jq '[.items[]|select(.spec.spoofChk != "on")]|length'); b2=$(printf '%s' "$n" | jq '[.items[]|(.spec.config|fromjson? // {})|select(.type == "bridge")|select(.macspoofchk != true)]|length'); [ "$b1" = 0 ] && [ "$b2" = 0 ] && echo compliant || echo noncompliant

Очекивани излаз: compliant

Како се исправља

Метод исправке: Смерница или закрпа инфраструктуре

Enable MAC-spoof filtering per the deployed networking provider instructions. Instructions for Bridge CNI and SR-IOV CNI.

Својства

Оперативни системи: Било који
Ознаке: openshift-virtnetworkmac-spoofing
Референца: CIS Red Hat OpenShift Virtual Machine Extension Benchmark v1.0.0 - 4.2 Enable MAC spoof filtering

Проверите овај рачунар

Покрените ово на рачунару за који имате дозволу за проверу. Скенирање ради у режиму само за читање.

shell

tmaegis scan --target openshift-virt