CVE-2021-21359
Denial of Service in Page Error Handling
5.9
MEDIUM
CVSS 3.1
EPSS 1.7%
描述
TYPO3 is an open source PHP based web content management system. In TYPO3 before versions 9.5.25, 10.4.14, 11.1.1 requesting invalid or non-existing resources via HTTP triggers the page error handler which again could retrieve content to be shown as error message from another page. This leads to a scenario in which the application is calling itself recursively - amplifying the impact of the initial attack until the limits of the web server are exceeded. This is fixed in versions 9.5.25, 10.4.14, 11.1.1.
如何修補 CVE-2021-21359
要修補 CVE-2021-21359,請將受影響套件升級到下列已修補版本。
- —升級至 10.4.14 或更新版本
- —升級至 10.4.14 或更新版本
CVE-2021-21359 正在被利用嗎?
低 — EPSS 為 1.7%,目前沒有觀察到大規模利用活動。
受影響套件(2)
- >= 10.0.0, < 10.4.14
- >= 10.0.0, < 10.4.14
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.9 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H/E:F/RL:O/RC:C |