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Applications using Spring Cloud Gateway that are configured to enable HTTP2 and no key store or trusted certificates are set will be configured to use an insecure TrustManager. This makes the gateway able to connect to remote services with invalid or custom certificates.
Users of affected versions should apply the following mitigation. 3.1.x users should upgrade to 3.1.1+. No other steps are necessary. Releases that have fixed this issue include:
This vulnerability was discovered and responsibly reported by Benjamin Bargeton from BNP Paribas.
The VMware Security Response team provides a single point of contact for the reporting of security vulnerabilities in VMware Tanzu products and coordinates the process of investigating any reported vulnerabilities.
To report a security vulnerability in a VMware service or product please refer to the VMware Security Response Policy.