CVE-2023-34242
Cilium vulnerable to information leakage via incorrect ReferenceGrant handling
描述
Cilium is a networking, observability, and security solution with an eBPF-based dataplane. Prior to version 1.13.4, when Gateway API is enabled in Cilium, the absence of a check on the namespace in which a ReferenceGrant is created could result in Cilium unintentionally gaining visibility of secrets (including certificates) and services across namespaces. An attacker on an affected cluster can leverage this issue to use cluster secrets that should not be visible to them, or communicate with services that they should not have access to. Gateway API functionality is disabled by default. This vulnerability is fixed in Cilium release 1.13.4. As a workaround, restrict the creation of `ReferenceGrant` resources to admin users by using Kubernetes RBAC.
如何修補 CVE-2023-34242
要修補 CVE-2023-34242,請將受影響套件升級到下列已修補版本。
- —升級至 1.13.4 或更新版本
- —升級至 1.13.4 或更新版本
- —升級至 1.13.4 或更新版本
- —升級至 1.13.4 或更新版本
- —升級至 1.13.4 或更新版本
- —升級至 1.13.4 或更新版本
- —升級至 1.13.4 或更新版本
- —升級至 1.13.4 或更新版本
- —升級至 1.13.4 或更新版本
CVE-2023-34242 正在被利用嗎?
低 — EPSS 為 0.3%,目前沒有觀察到大規模利用活動。
受影響套件(9)
- from 0, < 1.13.4
- from 0, < 1.13.4
- from 0, < 1.13.4
- from 0, < 1.13.4
- from 0, < 1.13.4
- from 0, < 1.13.4
- from 0, < 1.13.4
- >= 1.13.0, < 1.13.4
- >= 1.13.0, < 1.13.4
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 3.1 | LOW3.4 | CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:C/C:L/I:N/A:N |