@zhaoxuya520/cloud-k8s

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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SKILL.md
namecloud-k8s
descriptionUse 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

□ 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

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?

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