CVE-2020-5397
CSRF attack via CORS preflight requests with Spring MVC or Spring WebFlux
描述
Spring Framework, versions 5.2.x prior to 5.2.3 are vulnerable to CSRF attacks through CORS preflight requests that target Spring MVC (spring-webmvc module) or Spring WebFlux (spring-webflux module) endpoints. Only non-authenticated endpoints are vulnerable because preflight requests should not include credentials and therefore requests should fail authentication. However a notable exception to this are Chrome based browsers when using client certificates for authentication since Chrome sends TLS client certificates in CORS preflight requests in violation of spec requirements. No HTTP body can be sent or received as a result of this attack.
如何修補 CVE-2020-5397
要修補 CVE-2020-5397,請將受影響套件升級到下列已修補版本。
- —升級至 5.2.3 或更新版本
- —升級至 5.2.3 或更新版本
CVE-2020-5397 正在被利用嗎?
低 — EPSS 為 2.4%,目前沒有觀察到大規模利用活動。
受影響套件(2)
- >= 5.2.0, < 5.2.3
- >= 5.2.0, < 5.2.3
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.3 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N |