reverse-skills-max: initial public release (restored, redacted, hardened)
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reverse-skill-repo/skills/cloud-k8s/SKILL.md
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name: cloud-k8s
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description: Use for authorized cloud, container, and Kubernetes security assessment including metadata SSRF, IAM misconfig, container escape paths, and cluster RBAC review.
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---
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# Cloud / Container / Kubernetes Security
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## ACTION REQUIRED(读完后立刻执行)
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1. `NOW`: 读取 `../field-journal/precedent-pentest.md` — **云/K8s 测试必须书面授权**
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2. `NOW`: case-init + scope;明确账号边界、禁止破坏性操作
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3. `NOW`: 确认是云元数据/容器/K8s/IAM,而非普通 Web 扫(后者 `pentest-tools/`)
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4. `NEXT`: tool-index;kubectl/aws/gcloud 等多为手动安装
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5. `ACT`: 从「身份与暴露面」开始,禁止默认全网扫描
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## 适用场景
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- 云元数据 SSRF(169.254.169.254 / IMDS)
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- IAM 过度权限、公开存储桶、错误安全组
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- Docker/containerd 逃逸路径评估
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- Kubernetes RBAC、Secrets、Admission、供应链镜像
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- 容器镜像漏洞(可联动 `supply-chain-security/`)
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## 工作流
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### Phase 1 — 身份与边界
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```text
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□ 当前身份:云 AK/SK、K8s SA、节点 SSH?
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□ 范围:单账号 / 单 cluster / 单 namespace
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□ 网络档:authorized_target_only
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```
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### Phase 2 — 云控制面
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```bash
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# 示例(按厂商替换;MUST 在授权账号内)
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aws sts get-caller-identity
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aws s3 ls
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# Azure / GCP 对应 identity 命令
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```
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```text
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□ 公开桶 / 错误 ACL
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□ 元数据:IMDSv1 vs v2;SSRF 链
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□ 角色可扮演(PassRole)与横向
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```
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### Phase 3 — 容器
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```text
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□ 是否 privileged / hostPath / hostNetwork
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□ capabilities(SYS_ADMIN 等)
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□ 可写宿主机路径 → 逃逸候选
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□ 镜像历史与已知 CVE → Trivy
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```
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### Phase 4 — Kubernetes
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```bash
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kubectl auth can-i --list
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kubectl get pods,secrets,svc -A
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kubectl get clusterrolebindings
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```
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```text
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□ SA token 挂载与权限
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□ 危险 admission webhook 缺失
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□ etcd / dashboard 暴露
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□ 网络策略是否默认放行
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```
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## 工具链
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| 工具 | 用途 | 自举 |
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|------|------|------|
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| kubectl | 集群交互 | 手动 |
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| trivy | 镜像/IaC | bootstrap `trivy` 若可用 |
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| kube-bench / kubeaudit | CIS/配置 | 手动 |
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| pacu / scoutsuite | 云审计(授权) | 手动 |
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| nuclei | 已知云漏洞模板 | bootstrap nmap/nuclei 生态 |
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## 参考
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- `references/k8s-cloud-checklist.md`
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- CTF 对照:`../../CTF-Sandbox-Orchestrator/competition-agent-cloud/`
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- `../supply-chain-security/` `../pentest-tools/`
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## 路由上下文
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**上游**: MASTER R23
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**下游**: 拿到节点 shell → `attack-chain` / `windows-ad`;镜像漏洞 → supply-chain
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**MUST NOT**: 未授权扫公有云其他租户
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## 任务完成自检
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- [ ] 是否限定在授权账号/cluster?
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- [ ] 发现是否含复现与影响?
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- [ ] 是否避免破坏性操作?
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- [ ] 报告 / journal?
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@@ -0,0 +1,16 @@
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# Cloud / K8s 检查清单(精简)
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## IMDS
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- [ ] SSRF 是否可达 169.254.169.254
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- [ ] 是否强制 IMDSv2
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- [ ] 返回的 IAM 角色权限面
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## K8s 高危
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- [ ] cluster-admin 绑定过多
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- [ ] secrets 明文环境变量
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- [ ] privileged + hostPID/hostPath 组合
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- [ ] 匿名 auth / insecure apiserver 端口
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## 容器
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- [ ] 以 root 运行
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- [ ] 可加载内核模块 / docker.sock 挂载
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