CVE-2020-26255
Kirby Panel users could upload PHP Phar archives as content files before v2.5.14 and v3.4.5
描述
### Impact An editor with full access to the Kirby Panel can upload a PHP `.phar` file and execute it on the server. This vulnerability is critical if you might have potential attackers in your group of authenticated Panel users, as they can gain access to the server with such a Phar file. Visitors without Panel access *cannot* use this attack vector. ### Patches The problem has been patched in [Kirby 2.5.14](https://github.com/getkirby-v2/panel/releases/tag/2.5.14) and [Kirby 3.4.5](https://github.com/getkirby/kirby/releases/tag/3.4.5). Please update to one of these or a [later version](https://github.com/getkirby/kirby/releases/) to fix the vulnerability. **Note:** Kirby 2 reaches end of life on December 31, 2020. We therefore recommend to upgrade your Kirby 2 sites to Kirby 3. If you cannot upgrade, we still recommend to update to Kirby 2.5.14. ### Workarounds Kirby 2 sites on older releases can also be patched by applying the [changes from this commit](https://github.com/getkirby-v2/panel/commit/5a569d4e3ddaea2b6628d7ec1472a3e8bc410881). ### Credits Thanks to Thore Imhof of Accenture for reporting the problem.
如何修補 CVE-2020-26255
要修補 CVE-2020-26255,請將受影響套件升級到下列已修補版本。
- —升級至 3.4.5 或更新版本
- —升級至 2.5.14 或更新版本
CVE-2020-26255 正在被利用嗎?
低 — EPSS 為 1.5%,目前沒有觀察到大規模利用活動。
受影響套件(2)
- >= 3.0.0, < 3.4.5
- from 0, < 2.5.14