CVE-2021-40831

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 macOS systems. Additionally, SNI validation is also not enabled when the CA has been “overridden”. TLS handshakes will thus succeed if the peer can be verified either from the user-supplied CA or the system’s default trust-store. Attackers with access to a host’s trust stores or are able to compromise a certificate authority already in the host's trust store (note: the attacker must also be able to spoof DNS in this case) may be able to use this issue to bypass CA pinning. An attacker could then spoof the MQTT broker, and either drop traffic and/or respond with the attacker's data, but they would not be able to forward this data on to the MQTT broker because the attacker would still need the user's private keys to authenticate against the MQTT broker. The 'aws_tls_ctx_options_override_default_trust_store_*' function within the aws-c-io submodule has been updated to address this behavior. This issue affects: Amazon Web Services AWS IoT Device SDK v2 for Java versions prior to 1.5.0 on macOS. Amazon Web Services AWS IoT Device SDK v2 for Python versions prior to 1.7.0 on macOS. Amazon Web Services AWS IoT Device SDK v2 for C++ versions prior to 1.14.0 on macOS. Amazon Web Services AWS IoT Device SDK v2 for Node.js versions prior to 1.6.0 on macOS. Amazon Web Services AWS-C-IO 0.10.7 on macOS.
Configurations

Configuration 1 (hide)

AND
OR cpe:2.3:a:amazon:amazon_web_services_aws-c-io:0.10.7:*:*:*:*:*:*:*
cpe:2.3:a:amazon:amazon_web_services_internet_of_things_device_software_development_kit_v2:*:*:*:*:*:java:*:*
cpe:2.3:a:amazon:amazon_web_services_internet_of_things_device_software_development_kit_v2:*:*:*:*:*:node.js:*:*
cpe:2.3:a:amazon:amazon_web_services_internet_of_things_device_software_development_kit_v2:*:*:*:*:*:python:*:*
cpe:2.3:a:amazon:amazon_web_services_internet_of_things_device_software_development_kit_v2:*:*:*:*:*:c\+\+:*:*
cpe:2.3:o:apple:macos:-:*:*:*:*:*:*:*

History

21 Nov 2024, 06:24

Type Values Removed Values Added
References () https://github.com/aws/aws-iot-device-sdk-cpp-v2 - Product () https://github.com/aws/aws-iot-device-sdk-cpp-v2 - Product
References () https://github.com/aws/aws-iot-device-sdk-java-v2 - Product () https://github.com/aws/aws-iot-device-sdk-java-v2 - Product
References () https://github.com/aws/aws-iot-device-sdk-js-v2 - Product () https://github.com/aws/aws-iot-device-sdk-js-v2 - Product
References () https://github.com/aws/aws-iot-device-sdk-python-v2 - Product () https://github.com/aws/aws-iot-device-sdk-python-v2 - Product
References () https://github.com/awslabs/aws-c-io/ - Product () https://github.com/awslabs/aws-c-io/ - Product
CVSS v2 : 6.0
v3 : 7.2
v2 : 6.0
v3 : 6.3

02 Dec 2021, 14:50

Type Values Removed Values Added
CWE CWE-295
CVSS v2 : unknown
v3 : unknown
v2 : 6.0
v3 : 7.2
CPE cpe:2.3:a:amazon:amazon_web_services_internet_of_things_device_software_development_kit_v2:*:*:*:*:*:node.js:*:*
cpe:2.3:a:amazon:amazon_web_services_internet_of_things_device_software_development_kit_v2:*:*:*:*:*:python:*:*
cpe:2.3:a:amazon:amazon_web_services_aws-c-io:0.10.7:*:*:*:*:*:*:*
cpe:2.3:a:amazon:amazon_web_services_internet_of_things_device_software_development_kit_v2:*:*:*:*:*:java:*:*
cpe:2.3:a:amazon:amazon_web_services_internet_of_things_device_software_development_kit_v2:*:*:*:*:*:c\+\+:*:*
cpe:2.3:o:apple:macos:-:*:*:*:*:*:*:*
References (MISC) https://github.com/aws/aws-iot-device-sdk-cpp-v2 - (MISC) https://github.com/aws/aws-iot-device-sdk-cpp-v2 - Product
References (MISC) https://github.com/aws/aws-iot-device-sdk-python-v2 - (MISC) https://github.com/aws/aws-iot-device-sdk-python-v2 - Product
References (MISC) https://github.com/aws/aws-iot-device-sdk-java-v2 - (MISC) https://github.com/aws/aws-iot-device-sdk-java-v2 - Product
References (MISC) https://github.com/aws/aws-iot-device-sdk-js-v2 - (MISC) https://github.com/aws/aws-iot-device-sdk-js-v2 - Product
References (MISC) https://github.com/awslabs/aws-c-io/ - (MISC) https://github.com/awslabs/aws-c-io/ - Product

23 Nov 2021, 00:15

Type Values Removed Values Added
New CVE

Information

Published : 2021-11-23 00:15

Updated : 2024-11-21 06:24


NVD link : CVE-2021-40831

Mitre link : CVE-2021-40831

CVE.ORG link : CVE-2021-40831


JSON object : View

Products Affected

amazon

  • amazon_web_services_aws-c-io
  • amazon_web_services_internet_of_things_device_software_development_kit_v2

apple

  • macos
CWE
CWE-295

Improper Certificate Validation