CVE-2018-14773
symfony - security update
描述
An issue was discovered in Http Foundation in Symfony 2.7.0 through 2.7.48, 2.8.0 through 2.8.43, 3.3.0 through 3.3.17, 3.4.0 through 3.4.13, 4.0.0 through 4.0.13, and 4.1.0 through 4.1.2. It arises from support for a (legacy) IIS header that lets users override the path in the request URL via the X-Original-URL or X-Rewrite-URL HTTP request header. These headers are designed for IIS support, but it's not verified that the server is in fact running IIS, which means anybody who can send these requests to an application can trigger this. This affects \Symfony\Component\HttpFoundation\Request::prepareRequestUri() where X-Original-URL and X_REWRITE_URL are both used. The fix drops support for these methods so that they cannot be used as attack vectors such as web cache poisoning.
如何修補 CVE-2018-14773
要修補 CVE-2018-14773,請將受影響套件升級到下列已修補版本。
- —升級至 3.4.14+dfsg-1 或更新版本
- —升級至 2.8.7+dfsg-1.3+deb9u2 或更新版本
- —升級至 2.7.49 或更新版本
- —升級至 2.7.49 或更新版本
CVE-2018-14773 正在被利用嗎?
可能 — EPSS 為 58.1%,屬於高被利用機率區間,建議優先修補。
受影響套件(4)
- from 0, < 3.4.14+dfsg-1
- from 0, < 2.8.7+dfsg-1.3+deb9u2
- >= 2.7.0, < 2.7.49
- >= 2.7.0, < 2.7.49
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:N/S:U/C:N/I:H/A:N |