TLS hostname validation issues within AWS IoT Device SDKs on macOS
CVE-2021-40829

6.3MEDIUM

Key Information:

Vendor: Amazon Web Services
Status: Aws Iot Device Sdk V2 For Java; Aws Iot Device Sdk V2 For Python; Aws Iot Device Sdk V2 For C++; Aws Iot Device Sdk V2 For Node.js
Vendor: CVE Published:; 23 November 2021

What is CVE-2021-40829?

Connections initialized by the AWS IoT Device SDK v2 for Java (versions prior to 1.4.2), Python (versions prior to 1.6.1), C++ (versions prior to 1.12.7) and Node.js (versions prior to 1.5.3) did 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 versions 0.10.5 onward. This issue affects: Amazon Web Services AWS IoT Device SDK v2 for Java versions prior to 1.4.2 on macOS. Amazon Web Services AWS IoT Device SDK v2 for Python versions prior to 1.6.1 on macOS. Amazon Web Services AWS IoT Device SDK v2 for C++ versions prior to 1.12.7 on macOS. Amazon Web Services AWS IoT Device SDK v2 for Node.js versions prior to 1.5.3 on macOS. Amazon Web Services AWS-C-IO 0.10.4 on macOS.