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Cloud K8s

ASecurity

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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  • Added September 27, 2026
developmentshellbashdockerkubernetesawsgcpazuresecurity

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npx -y skills add Saprophytic-seattle561/reverse-skill --skill cloud-k8s --agent claude-code

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SKILL.md
---
name: cloud-k8s
description: Use for authorized cloud, container, and Kubernetes security assessment including metadata SSRF, IAM misconfig, container escape paths, and cluster RBAC review.
---

# Cloud / Container / Kubernetes Security

## ACTION REQUIRED(读完后立刻执行)

1. `NOW`: 读取 `../field-journal/precedent-pentest.md` — **云/K8s 测试必须书面授权**
2. `NOW`: case-init + scope;明确账号边界、禁止破坏性操作
3. `NOW`: 确认是云元数据/容器/K8s/IAM,而非普通 Web 扫(后者 `pentest-tools/`)
4. `NEXT`: tool-index;kubectl/aws/gcloud 等多为手动安装
5. `ACT`: 从「身份与暴露面」开始,禁止默认全网扫描

## 适用场景

- 云元数据 SSRF(169.254.169.254 / IMDS)
- IAM 过度权限、公开存储桶、错误安全组
- Docker/containerd 逃逸路径评估
- Kubernetes RBAC、Secrets、Admission、供应链镜像
- 容器镜像漏洞(可联动 `supply-chain-security/`)

## 工作流

### Phase 1 — 身份与边界

```text
□ 当前身份:云 AK/SK、K8s SA、节点 SSH?
□ 范围:单账号 / 单 cluster / 单 namespace
□ 网络档:authorized_target_only
```

### Phase 2 — 云控制面

```bash
# 示例(按厂商替换;MUST 在授权账号内)
aws sts get-caller-identity
aws s3 ls
# Azure / GCP 对应 identity 命令
```

```text
□ 公开桶 / 错误 ACL
□ 元数据:IMDSv1 vs v2;SSRF 链
□ 角色可扮演(PassRole)与横向
```

### Phase 3 — 容器

```text
□ 是否 privileged / hostPath / hostNetwork
□ capabilities(SYS_ADMIN 等)
□ 可写宿主机路径 → 逃逸候选
□ 镜像历史与已知 CVE → Trivy
```

### Phase 4 — Kubernetes

```bash
kubectl auth can-i --list
kubectl get pods,secrets,svc -A
kubectl get clusterrolebindings
```

```text
□ SA token 挂载与权限
□ 危险 admission webhook 缺失
□ etcd / dashboard 暴露
□ 网络策略是否默认放行
```

## 工具链

| 工具 | 用途 | 自举 |
|------|------|------|
| kubectl | 集群交互 | 手动 |
| trivy | 镜像/IaC | bootstrap `trivy` 若可用 |
| kube-bench / kubeaudit | CIS/配置 | 手动 |
| pacu / scoutsuite | 云审计(授权) | 手动 |
| nuclei | 已知云漏洞模板 | bootstrap nmap/nuclei 生态 |

## 参考

- `references/k8s-cloud-checklist.md`
- CTF 对照:`../../CTF-Sandbox-Orchestrator/competition-agent-cloud/`
- `../supply-chain-security/` `../pentest-tools/`

## 路由上下文

**上游**: MASTER R23  
**下游**: 拿到节点 shell → `attack-chain` / `windows-ad`;镜像漏洞 → supply-chain  
**MUST NOT**: 未授权扫公有云其他租户

## 任务完成自检

- [ ] 是否限定在授权账号/cluster?
- [ ] 发现是否含复现与影响?
- [ ] 是否避免破坏性操作?
- [ ] 报告 / journal?

Files in this skill

  • SKILL.md2.7 KB
  • references/k8s-cloud-checklist.md401 B

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