Описание
Cilium is a networking, observability, and security solution with an eBPF-based dataplane. Node based network policies (fromNodes and toNodes) will incorrectly permit traffic to/from non-node endpoints that share the labels specified in fromNodes and toNodes sections of network policies. Node based network policy is disabled by default in Cilium. This issue affects: Cilium v1.16 between v1.16.0 and v1.16.7 inclusive and v1.17 between v1.17.0 and v1.17.1 inclusive. This issue is fixed in Cilium v1.16.8 and v1.17.2. Users can work around this issue by ensuring that the labels used in fromNodes and toNodes fields are used exclusively by nodes and not by other endpoints.
A flaw was found in Cilium package. The Node based network policies (fromNodes and toNodes) will incorrectly permit traffic to/from non-node endpoints that share the labels specified in fromNodes and toNodes sections of network policies.
Отчет
The vulnerability affects Cilium's node-based network policies (fromNodes and toNodes). The Attack Complexity is set to High (AC:H) because node-based network policy is disabled by default in Cilium. For an attack to succeed, an administrator must first explicitly enable this non-default feature, and the environment must have non-node endpoints sharing specific labels with nodes. Hence, Red Hat rated this vulnerability as Low impact.
Меры по смягчению последствий
Users can work around this issue by ensuring that the labels used in fromNodes and toNodes fields are used exclusively by nodes and not by other endpoints.
Затронутые пакеты
| Платформа | Пакет | Состояние | Рекомендация | Релиз |
|---|---|---|---|---|
| Network Observability Operator | network-observability/network-observability-ebpf-agent-rhel9 | Fix deferred | ||
| Network Observability Operator | network-observability/network-observability-flowlogs-pipeline-rhel9 | Fix deferred | ||
| Network Observability Operator | network-observability/network-observability-operator-bundle | Fix deferred | ||
| Network Observability Operator | network-observability/network-observability-rhel9-operator | Fix deferred | ||
| OpenShift Developer Tools and Services | jenkins-agent-base-container | Fix deferred | ||
| OpenShift Developer Tools and Services | ocp-tools-4/jenkins-agent-base-rhel8 | Fix deferred | ||
| OpenShift Developer Tools and Services | ocp-tools-4/jenkins-rhel8 | Fix deferred | ||
| OpenShift Service Mesh 2 | openshift-service-mesh/istio-cni-rhel8 | Fix deferred | ||
| OpenShift Service Mesh 2 | openshift-service-mesh/istio-proxyv2-rhel8 | Fix deferred | ||
| OpenShift Service Mesh 2 | openshift-service-mesh/istio-proxyv2-rhel9 | Fix deferred |
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Дополнительная информация
Статус:
EPSS
3.4 Low
CVSS3
Связанные уязвимости
Cilium is a networking, observability, and security solution with an eBPF-based dataplane. Node based network policies (`fromNodes` and `toNodes`) will incorrectly permit traffic to/from non-node endpoints that share the labels specified in `fromNodes` and `toNodes` sections of network policies. Node based network policy is disabled by default in Cilium. This issue affects: Cilium v1.16 between v1.16.0 and v1.16.7 inclusive and v1.17 between v1.17.0 and v1.17.1 inclusive. This issue is fixed in Cilium v1.16.8 and v1.17.2. Users can work around this issue by ensuring that the labels used in `fromNodes` and `toNodes` fields are used exclusively by nodes and not by other endpoints.
Cilium is a networking, observability, and security solution with an e ...
Cilium node based network policies may incorrectly allow workload traffic
EPSS
3.4 Low
CVSS3