CVE-2021-40829: Improper Certificate Validation

November 23, 2021 (updated December 2, 2021)

Connections initialized by the AWS IoT Device SDK v2 for Java, Python , C++ and Node.js does not verify server certificate hostname during TLS handshake when overriding Certificate Authorities (CA) in their trust stores on MacOS. This issue has been addressed in aws-c-io submodule onward. This issue affects: Amazon Web Services AWS IoT Device SDK v2 for Java on macOS. Amazon Web Services AWS IoT Device SDK v2 for Python on macOS. Amazon Web Services AWS IoT Device SDK v2 for C++ on macOS. Amazon Web Services AWS IoT Device SDK v2 for Node.js on macOS. Amazon Web Services AWS-C-IO on macOS.

References

github.com/aws/aws-iot-device-sdk-cpp-v2
github.com/aws/aws-iot-device-sdk-java-v2
github.com/aws/aws-iot-device-sdk-js-v2
github.com/aws/aws-iot-device-sdk-python-v2
github.com/awslabs/aws-c-io/
nvd.nist.gov/vuln/detail/CVE-2021-40829

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