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Learn moreSpring Cloud Netflix, versions 2.2.x prior to 2.2.4, versions 2.1.x prior to 2.1.6, and older unsupported versions allow applications to use the Hystrix Dashboard proxy.stream endpoint to make requests to any server reachable by the server hosting the dashboard. A malicious user, or attacker, can send a request to other servers that should not be exposed publicly.
Users of affected versions should apply the mitigation below. There are no other mitigation steps necessary. Note that Hystrix Dashboard in spring-cloud-netflix should only be available on internal networks to clients that require it and it should be secured with Spring Security. This limits exposure to this vulnerability to those with internal network access and those users with proper authentication.
This issue was identified and responsibly reported by Vern ([email protected] from PingAn Galaxy Lab).
To report a security vulnerability for a project within the Spring portfolio, see the Security Policy