CVE-2021-20206
Improper limitation of path name in github.com/containernetworking/cni
7.2
HIGH
CVSS 3.1
EPSS 0.12%
描述
An improper limitation of path name flaw was found in containernetworking/cni in versions before 0.8.1. When specifying the plugin to load in the 'type' field in the network configuration, it is possible to use special elements such as "../" separators to reference binaries elsewhere on the system. This flaw allows an attacker to execute other existing binaries other than the cni plugins/types, such as 'reboot'. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.
如何修補 CVE-2021-20206
要修補 CVE-2021-20206,請將受影響套件升級到下列已修補版本。
- —升級至 0.8.1-1 或更新版本
- —升級至 0.8.1 或更新版本
- —升級至 0.8.1 或更新版本
CVE-2021-20206 正在被利用嗎?
低 — EPSS 為 0.1%,目前沒有觀察到大規模利用活動。
受影響套件(3)
- from 0, < 0.8.1-1
- from 0, < 0.8.1
- from 0, < 0.8.1
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.2 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H |