CVE-2020-27216
Local Temp Directory Hijacking Vulnerability
描述
In Eclipse Jetty versions 1.0 thru 9.4.32.v20200930, 10.0.0.alpha1 thru 10.0.0.beta2, and 11.0.0.alpha1 thru 11.0.0.beta2O, on Unix like systems, the system's temporary directory is shared between all users on that system. A collocated user can observe the process of creating a temporary sub directory in the shared temporary directory and race to complete the creation of the temporary subdirectory. If the attacker wins the race then they will have read and write permission to the subdirectory used to unpack web applications, including their WEB-INF/lib jar files and JSP files. If any code is ever executed out of this temporary directory, this can lead to a local privilege escalation vulnerability.
如何修補 CVE-2020-27216
要修補 CVE-2020-27216,請將受影響套件升級到下列已修補版本。
- —升級至 9.4.33.v20201020 或更新版本
- —升級至 9.4.33 或更新版本
CVE-2020-27216 正在被利用嗎?
低 — EPSS 為 4.3%,目前沒有觀察到大規模利用活動。
受影響套件(2)
- from 0, < 9.4.33.v20201020
- from 0, < 9.4.33
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.0 | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H |