envoyproxy envoy 证书验证不恰当
CVE编号
CVE-2022-21656利用情况
暂无补丁情况
N/A披露时间
2022-02-23漏洞描述
Envoy is an open source edge and service proxy, designed for cloud-native applications. The default_validator.cc implementation used to implement the default certificate validation routines has a "type confusion" bug when processing subjectAltNames. This processing allows, for example, an rfc822Name or uniformResourceIndicator to be authenticated as a domain name. This confusion allows for the bypassing of nameConstraints, as processed by the underlying OpenSSL/BoringSSL implementation, exposing the possibility of impersonation of arbitrary servers. As a result Envoy will trust upstream certificates that should not be trusted.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。
参考链接 |
|
|---|---|
| https://github.com/envoyproxy/envoy/commit/bb95af848c939cfe5b5ee33c5b1770558077e64e | |
| https://github.com/envoyproxy/envoy/security/advisories/GHSA-c9g7-xwcv-pjx2 |
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 | envoyproxy | envoy | * | Up to (excluding) 1.20.2 | |||||
- 攻击路径 网络
- 攻击复杂度 高
- 权限要求 无
- 影响范围 未更改
- 用户交互 无
- 可用性 无
- 保密性 无
- 完整性 高
| CWE-ID | 漏洞类型 |
| CWE-295 | 证书验证不恰当 |
| CWE-843 | 使用不兼容类型访问资源（类型混淆） |
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