PT-2021-22965 · Amazon · Aws Iot Device Sdk V2 For Python+4

F-Secure · Published 2021-11-22 · Updated 2021-12-02 · CVE-2021-40829

Positive Technologies (AI Summary)

CVSS v3.1

8.8

High

Base vector

AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions AWS IoT Device SDK v2 for Java versions prior to 1.4.2 AWS IoT Device SDK v2 for Python versions prior to 1.6.1 AWS IoT Device SDK v2 for C++ versions prior to 1.12.7 AWS IoT Device SDK v2 for Node.js versions prior to 1.5.3 AWS-C-IO version 0.10.4

Description Connections initialized by the AWS IoT Device SDK v2 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.

Recommendations For AWS IoT Device SDK v2 for Java versions prior to 1.4.2, update to version 1.4.2 or later. For AWS IoT Device SDK v2 for Python versions prior to 1.6.1, update to version 1.6.1 or later. For AWS IoT Device SDK v2 for C++ versions prior to 1.12.7, update to version 1.12.7 or later. For AWS IoT Device SDK v2 for Node.js versions prior to 1.5.3, update to version 1.5.3 or later. For AWS-C-IO version 0.10.4, update to version 0.10.5 or later.

Fix

Improper Certificate Validation

Weakness Enumeration

CWE-295

Related Identifiers

CVE-2021-40829

GHSA-743R-5G92-5VGF

PYSEC-2021-862

Affected Products

Aws Iot Device Sdk V2 For C++

Aws Iot Device Sdk V2 For Java

Aws Iot Device Sdk V2 For Node.Js

Aws Iot Device Sdk V2 For Python

Aws-C-Io

References · 14

• https://nvd.nist.gov/vuln/detail/CVE-2021-40829 · Security Note
• https://osv.dev/vulnerability/PYSEC-2021-862 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-40829 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-743r-5g92-5vgf · Vendor Advisory
• https://github.com/aws/aws-iot-device-sdk-python-v2 · Note
• https://github.com/aws/aws-iot-device-sdk-js-v2 · Note
• https://github.com/pypa/advisory-database/tree/main/vulns/awsiotsdk/PYSEC-2021-862.yaml · Note
• https://github.com/aws/aws-iot-device-sdk-cpp-v2 · Note
• https://github.com/aws/aws-iot-device-sdk-java-v2 · Note
• https://github.com/aws/aws-iot-device-sdk-java-v2/commits/v1.4.2 · Note
• https://github.com/awslabs/aws-c-io · Note
• https://github.com/advisories/GHSA-743r-5g92-5vgf · Note
• https://t.me/cvenotify/23645 · Telegram Post
• https://t.me/cibsecurity/32835 · Telegram Post