中危 amazon amazon_web_services_aws-c-io 证书验证不恰当
CVE编号
CVE-2021-40831利用情况
暂无补丁情况
官方补丁披露时间
2021-11-23漏洞描述
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.解决建议
建议您更新当前系统或软件至最新版，完成漏洞的修复。受影响软件情况
| # | 类型 | 厂商 | 产品 | 版本 | 影响面 | ||||
| 1 | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 运行在以下环境 | |||||||||
| 应用 | amazon | amazon_web_services_aws-c-io | 0.10.7 | - | |||||
| 运行在以下环境 | |||||||||
| 应用 | amazon | amazon_web_services_internet_of_things_device_software_development_kit_v2 | * | Up to (excluding) 1.14.0 | |||||
| 运行在以下环境 | |||||||||
| 应用 | amazon | amazon_web_services_internet_of_things_device_software_development_kit_v2 | * | Up to (excluding) 1.5.0 | |||||
| 运行在以下环境 | |||||||||
| 应用 | amazon | amazon_web_services_internet_of_things_device_software_development_kit_v2 | * | Up to (excluding) 1.6.0 | |||||
| 运行在以下环境 | |||||||||
| 应用 | amazon | amazon_web_services_internet_of_things_device_software_development_kit_v2 | * | Up to (excluding) 1.7.0 | |||||
- 攻击路径 本地
- 攻击复杂度 复杂
- 权限要求 普通权限
- 影响范围 越权影响
- EXP成熟度 未验证
- 补丁情况 官方补丁
- 数据保密性 无影响
- 数据完整性 无影响
- 服务器危害 无影响
- 全网数量 N/A
| CWE-ID | 漏洞类型 |
| CWE-295 | 证书验证不恰当 |
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