CVE-2025-23047
Cilium vulnerable to information leakage via insecure default Hubble UI CORS header
描述
Cilium is a networking, observability, and security solution with an eBPF-based dataplane. An insecure default `Access-Control-Allow-Origin` header value could lead to sensitive data exposure for users of Cilium versions 1.14.0 through 1.14.7, 1.15.0 through 1.15.11, and 1.16.0 through 1.16.4 who deploy Hubble UI using either Cilium CLI or via the Cilium Helm chart. A user with access to a Hubble UI instance affected by this issue could leak configuration details about the Kubernetes cluster which Hubble UI is monitoring, including node names, IP addresses, and other metadata about workloads and the cluster networking configuration. In order for this vulnerability to be exploited, a victim would have to first visit a malicious page. This issue is fixed in Cilium v1.14.18, v1.15.12, and v1.16.5. As a workaround, users who deploy Hubble UI using the Cilium Helm chart directly can remove the CORS headers from the Helm template as shown in the patch from commit a3489f190ba6e87b5336ee685fb6c80b1270d06d.
如何修補 CVE-2025-23047
要修補 CVE-2025-23047,請將受影響套件升級到下列已修補版本。
- —升級至 1.16.5 或更新版本
- —升級至 1.16.5 或更新版本
- —升級至 1.16.5 或更新版本
- —升級至 1.14.19 或更新版本
- —升級至 1.14.19 或更新版本
CVE-2025-23047 正在被利用嗎?
低 — EPSS 為 0.5%,目前沒有觀察到大規模利用活動。
受影響套件(5)
- >= 1.14.0, < 1.16.5
- >= 1.15.4, < 1.16.5
- >= 1.14.0, < 1.16.5
- >= 1.14.0, < 1.14.19
- >= 1.14.0, < 1.14.19, >= 1.15.0, < 1.15.13, >= 1.16.0, < 1.16.6
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM6.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N |