CVE-2021-40830

CVE-2021-40830 affects the AWS IoT Device SDK v2 for Java, Python, C++, and Node.js on Linux/Unix. The root cause is that the SDK appends a user-supplied CA to the system trust store instead of overriding it, which can allow TLS handshakes to succeed using either the user-supplied CA or the defau...

CVE-2021-40830 Inconsistent CA override function behavior within AWS IoT Device SDKs on Unix systems

The AWS IoT Device SDK v2 for Java, Python, C++ and Node.js appends a user supplied Certificate Authority CA to the root CAs instead of overriding it on Unix systems. TLS handshakes will thus succeed if the peer can be verified either from the user-supplied CA or the system’s default trust-store...