One Article Review
| Source |  CVE Liste |
|---|---|
| Identifiant | 8319518 |
| Date de publication | 2023-03-17 20:15:13 (vue: 2023-03-17 23:07:06) |
| Titre | CVE-2023-27593 |
| Texte | Cilium is a networking, observability, and security solution with an eBPF-based dataplane. Prior to versions 1.11.15, 1.12.8, and 1.13.1, an attacker with access to a Cilium agent pod can write to `/opt/cni/bin` due to a `hostPath` mount of that directory in the agent pod. By replacing the CNI binary with their own malicious binary and waiting for the creation of a new pod on the node, the attacker can gain access to the underlying node. The issue has been fixed and the fix is available on versions 1.11.15, 1.12.8, and 1.13.1. Some workarounds are available. Kubernetes RBAC should be used to deny users and service accounts `exec` access to Cilium agent pods. In cases where a user requires `exec` access to Cilium agent pods, but should not have access to the underlying node, no workaround is possible. |
| Envoyé | Oui |
| Condensat | 2023 27593 `/opt/cni/bin` `exec` `hostpath` access accounts agent are attacker available based been binary but can cases cilium cni creation cve dataplane deny directory due ebpf fix fixed gain has have issue kubernetes malicious mount networking new node not observability own pod pods possible prior rbac replacing requires security service should solution some underlying used user users versions waiting where workaround workarounds write |
| Tags | |
| Stories | Uber |
| Notes | |
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