Mmcp.market

cloud-k8s skill

by zhaoxuya520·zhaoxuya520/reverse-skill·39k stars·MIT

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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Install the cloud-k8s skill

A skill is a folder. Copy it into your agent's skills folder and the agent loads it when the task matches its description. 

git clone --depth 1 https://github.com/zhaoxuya520/reverse-skill.git /tmp/reverse-skill
mkdir -p ~/.claude/skills
cp -r /tmp/reverse-skill/skills/cloud-k8s ~/.claude/skills/cloud-k8s
available in every project

In the Claude apps, zip the folder and upload it from the Skills settings. The folder on GitHub

The instructions your agent would load

SKILL.md as published, without the frontmatter. Read it on GitHub

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

□ 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

# 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
□ 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

□ 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

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

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？

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