CVE-2021-22053: Spring Cloud Netflix Hystrix Dashboard template resolution vulnerability
Applications using both spring-cloud-netflix-hystrix-dashboard and spring-boot-starter-thymeleaf expose a way to execute code submitted within the request URI path during the resolution of view templates. When a request is made at /hystrix/monitor;[user-provided data], the path elements following hystrix/monitor are being evaluated as SpringEL expressions, which can lead to code execution.
Severity is high unless otherwise noted.
- Spring Cloud Netflix
- 2.2.0.RELEASE to 2.2.9.RELEASE
- Older, unsupported versions are also affected
Users of affected versions should apply the following mitigation: Users should upgrade to 2.2.10.RELEASE+. No other steps are necessary. Releases that have fixed this issue include:
- Spring Cloud Netflix
- 2.2.10.RELEASE+
This vulnerability was identified and responsibly reported by threedr3am of SecCoder Security Lab (threedr3am@foxmail.com).
https://www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:L