getambassador emissary-ingress 证书验证不恰当

CVE编号

CVE-2021-36371

利用情况

暂无

补丁情况

N/A

披露时间

2021-07-10

漏洞描述

Emissary-Ingress (formerly Ambassador API Gateway) through 1.13.9 allows attackers to bypass client certificate requirements (i.e., mTLS cert_required) on backend upstreams when more than one TLSContext is defined and at least one configuration exists that does not require client certificate authentication. The attacker must send an SNI specifying an unprotected backend and an HTTP Host header specifying a protected backend. (2.x versions are unaffected. 1.x versions are unaffected with certain configuration settings involving prune_unreachable_routes and a wildcard Host resource.)

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/emissary-ingress/emissary/issues/3340
https://github.com/emissary-ingress/emissary/releases/tag/v2.0.0-ea

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	getambassador	emissary-ingress	*		Up to (including) 1.13.9

CVSS3评分 3.7

• 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 低

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N CWE-ID 漏洞类型 CWE-295 证书验证不恰当