CVE-2023-27594
Cilium vulnerable to potential network policy bypass when routing IPv6 traffic
描述
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, under specific conditions, Cilium may misattribute the source IP address of traffic to a cluster, identifying external traffic as coming from the host on which Cilium is running. As a consequence, network policies for that cluster might be bypassed, depending on the specific network policies enabled.This issue only manifests when Cilium is routing IPv6 traffic and NodePorts are used to route traffic to pods. IPv6 and endpoint routes are both disabled by default.The problem has been fixed and is available on versions 1.11.15, 1.12.8, and 1.13.1. As a workaround, disable IPv6 routing.
如何修補 CVE-2023-27594
要修補 CVE-2023-27594,請將受影響套件升級到下列已修補版本。
- —升級至 1.11.15 或更新版本
- —升級至 1.11.15 或更新版本
- —升級至 1.11.15 或更新版本
- —升級至 1.11.15 或更新版本
- —升級至 1.11.15 或更新版本
- —升級至 1.11.15 或更新版本
- —升級至 1.11.15 或更新版本
- —升級至 1.11.15 或更新版本
- —升級至 1.11.15 或更新版本
CVE-2023-27594 正在被利用嗎?
低 — EPSS 為 0.6%,目前沒有觀察到大規模利用活動。
受影響套件(9)
- from 0, < 1.11.15, >= 1.12.0, < 1.12.8, >= 1.13.0, < 1.13.1
- from 0, < 1.11.15, >= 1.12.0, < 1.12.8, >= 1.13.0, < 1.13.1
- from 0, < 1.11.15, >= 1.12.0, < 1.12.8, >= 1.13.0, < 1.13.1
- from 0, < 1.11.15, >= 1.12.0, < 1.12.8, >= 1.13.0, < 1.13.1
- from 0, < 1.11.15, >= 1.12.0, < 1.12.8, >= 1.13.0, < 1.13.1
- from 0, < 1.11.15, >= 1.12.0, < 1.12.8, >= 1.13.0, < 1.13.1
- from 0, < 1.11.15, >= 1.12.0, < 1.12.8, >= 1.13.0, < 1.13.1
- from 0, < 1.11.15
- from 0, < 1.11.15, >= 1.12.0, < 1.12.8, >= 1.13.0, < 1.13.1
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM4.2 | CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N |