CVE-2020-17518
Apache Flink directory traversal attack: remote file writing through the REST API
7.5
HIGH
CVSS 3.1
EPSS 50.0%
描述
Apache Flink 1.5.1 introduced a REST handler that allows you to write an uploaded file to an arbitrary location on the local file system, through a maliciously modified HTTP HEADER. The files can be written to any location accessible by Flink 1.5.1. All users should upgrade to Flink 1.11.3 or 1.12.0 if their Flink instance(s) are exposed. The issue was fixed in commit a5264a6f41524afe8ceadf1d8ddc8c80f323ebc4 from apache/flink:master.
如何修補 CVE-2020-17518
要修補 CVE-2020-17518,請將受影響套件升級到下列已修補版本。
- —升級至 1.11.3 或更新版本
- —升級至 1.11.3 或更新版本
CVE-2020-17518 正在被利用嗎?
可能 — EPSS 為 50.0%,屬於高被利用機率區間,建議優先修補。
受影響套件(2)
- >= 1.5.1, < 1.11.3
- >= 1.5.1, < 1.11.3
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N |