CVE-2020-5249
HTTP Response Splitting (Early Hints) in Puma
6.5
MEDIUM
CVSS 3.1
EPSS 1.6%
描述
In Puma (RubyGem) before 4.3.3 and 3.12.4, if an application using Puma allows untrusted input in an early-hints header, an attacker can use a carriage return character to end the header and inject malicious content, such as additional headers or an entirely new response body. This vulnerability is known as HTTP Response Splitting. While not an attack in itself, response splitting is a vector for several other attacks, such as cross-site scripting (XSS). This is related to CVE-2020-5247, which fixed this vulnerability but only for regular responses. This has been fixed in 4.3.3 and 3.12.4.
如何修補 CVE-2020-5249
要修補 CVE-2020-5249,請將受影響套件升級到下列已修補版本。
- —升級至 3.12.4-1 或更新版本
- —升級至 3.12.4 或更新版本
CVE-2020-5249 正在被利用嗎?
低 — EPSS 為 1.6%,目前沒有觀察到大規模利用活動。
受影響套件(2)
- from 0, < 3.12.4-1
- from 0, < 3.12.4
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L |