CVE-2021-21696
Agent-to-controller access control allowed writing to sensitive directory used by Jenkins Pipeline: Shared Groovy Libraries Plugin
8.8
HIGH
CVSS 3.1
EPSS 2.3%
描述
Jenkins 2.318 and earlier, LTS 2.303.2 and earlier does not limit agent read/write access to the libs/ directory inside build directories when using the FilePath APIs, allowing attackers in control of agent processes to replace the code of a trusted library with a modified variant. This results in unsandboxed code execution in the Jenkins controller process.
如何修補 CVE-2021-21696
要修補 CVE-2021-21696,請將受影響套件升級到下列已修補版本。
- —升級至 2.318.1 或更新版本
- —升級至 2.303.3 或更新版本
CVE-2021-21696 正在被利用嗎?
低 — EPSS 為 2.3%,目前沒有觀察到大規模利用活動。
受影響套件(2)
- from 0, < 2.318.1
- from 0, < 2.303.3
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |