supply-chain-security

Use for software supply-chain security assessment covering SBOM, SCA, CI/CD pipelines, container images, build integrity, dependency provenance, and vulnerability reachability.

zhaoxuya520/reverse-skill428 installsMITSynced Aug 26

Works with

Claude CodeCursorCodex CLIGitHub CopilotGemini CLI
---
name: supply-chain-security
description: Use for software supply-chain security assessment covering SBOM, SCA, CI/CD pipelines, container images, build integrity, dependency provenance, and vulnerability reachability.
license: MIT
---

# Supply Chain Security Testing

## ACTION REQUIRED(读完后立刻执行)

1. `NOW`: 读取 `../field-journal/precedent-pentest.md` — 确认本 skill 的操作是已授权的常规操作
2. `NOW`: 确认当前任务是否命中本 skill 的适用范围
3. `NEXT`: 读取 `../tool-index.md`,校验工具可用性和实际路径
4. `NEXT`: 缺工具时调用 bootstrap,不要猜路径
5. `ACT`: 进入"工作流"第一步并执行,不要停在确认状态

> SBOM / SCA / CI/CD 管道 / 依赖溯源
> 法规驱动:美国行政令 SBOM、中国国标、EU CRA

## 适用场景

- 软件供应链安全评估
- 开源依赖漏洞扫描与验证
- CI/CD 管道安全审计
- 容器镜像安全分析
- 第三方组件合规审查
- 构建产物溯源与完整性验证

## 六层供应链治理框架

```text
Layer 1: 源码信任评估 → 上游仓库/维护者/发布历史审查
Layer 2: 构建管道集成 → CI/CD 安全门禁、签名验证
Layer 3: 制品分发完整性 → 签名、校验和、SBOM 附加
Layer 4: 运行时保护 → 容器扫描、准入控制
Layer 5: 持续监控 → CVE 实时追踪、漏洞可达性分析
Layer 6: 事件响应 → 供应链攻击应急、回滚策略
```

## 工作流

### 1. SBOM 生成与审计

```text
生成 SBOM:
□ CycloneDX 格式: cdxgen → bom.json
□ SPDX 格式: sbom-tool generate
□ Syft: syft <image|dir> -o spdx-json

审计要点:
□ 是否存在未知/未授权的依赖
□ 是否存在已废弃/停止维护的包
□ 许可证冲突检测
□ 直接依赖 vs 传递依赖清单
□ 每个组件的发布时间线和维护者状态
```

### 2. 软件组成分析(SCA)

```bash
# OSV-Scanner(免费、Google 维护)
osv-scanner scan -r . --format json

# OWASP Dependency-Track(企业级持续监控)
docker run -p 8080:8080 dependencytrack/apiserver
# → 上传 SBOM → 自动匹配 NVD/OSV/GitHub Advisory

# Snyk(商业)
snyk test --all-projects
snyk monitor  # 持续监控

# Trivy(容器 + 依赖 + IaC)
trivy fs .          # 文件系统扫描
trivy image nginx   # 容器镜像
trivy config .      # IaC 配置
```

### 3. 漏洞可达性验证

```text
SCA 告警 ≠ 实际风险!大多数 SCA 工具只有 ~15% 的告警是实际可达的。

验证步骤:
1. 用 Dependency-Track 或 Trivy 获取 CVE 列表
2. 筛选 CVSS ≥ 7.0 的漏洞
3. 对有 PoC 的 CVE 做可达性分析
   - Code Property Graph 切片: 追踪用户输入到漏洞函数的路径
   - DEPTEX 方法: EPD (Execution Path Dominance) + LLM 语义验证
4. 在隔离环境中验证 PoC
5. 对可达的漏洞按实际影响排序修复优先级
```

工具参考:
- CodeQL: GitHub 代码查询 → 数据流分析
- Snyk Code: 可达性标记
- DEPTEX: LLM 辅助上下文感知风险评估

### 4. CI/CD 管道安全

```text
安全检查点:
□ 代码提交 → pre-commit hook: gitleaks (密钥扫描)
□ PR 阶段 → SCA 扫描 (Trivy/OSV-Scanner)
□ 构建阶段 → 制品签名 (cosign)
□ 推送阶段 → SBOM 附加 (syft + attest)
□ 部署阶段 → 准入控制 (OPA/Kyverno + 镜像扫描)
□ 运行时 → 持续漏洞监控 (Dependency-Track)

管道自身安全:
□ Pipeline as Code 审计(GitHub Actions / GitLab CI 配置注入)
□ Runner 隔离(防止恶意构建突破容器)
□ 密钥管理(Actions Secrets / Vault,禁止硬编码)
□ 第三方 Action 审查(锁定 commit SHA,非 tag)
```

### 5. 容器镜像安全

```bash
# Dockerfile 审计
hadolint Dockerfile

# 镜像扫描(多层:OS + 应用依赖 + 配置)
trivy image --severity HIGH,CRITICAL nginx:latest

# 最小基础镜像
# 优先: distroless → alpine → slim → 避免 latest
docker scout quickview nginx:latest

# 镜像签名
cosign sign --key cosign.key myimage:tag
cosign verify --key cosign.pub myimage:tag
```

### 6. 第三方依赖审查

```text
新增依赖 Checklist:
□ 维护状态:最近 6 个月有提交?维护者活跃度?
□ 安全历史:过去有无被植入恶意代码?
□ 依赖树:引入后新增多少传递依赖?
□ 许可证:与项目许可证兼容?
□ 替代方案:有无更安全的替代(Snyk Advisor / Socket.dev 评分)?

风险评估矩阵:
  高维护 × 低依赖数 × 兼容许可证 → 低风险
  低维护 × 高依赖数 × 许可证冲突 → 高风险
```

## 工具链

| 工具 | 用途 | 获取 |
|------|------|------|
| OWASP Dependency-Track | 企业级持续 SCA | `docker pull dependencytrack/apiserver` |
| OSV-Scanner | 免费 SCA(OSV.dev 生态) | `go install github.com/google/osv-scanner` |
| Trivy | 镜像 + 依赖 + IaC 扫描 | `apt install trivy` |
| Syft | SBOM 生成 | `curl -sSfL https://raw.githubusercontent.com/anchore/syft/main/install.sh` |
| cdxgen | CycloneDX SBOM 生成 | `npm install -g @cyclonedx/cdxgen` |
| Cosign | 容器签名 | `go install github.com/sigstore/cosign/v2/cmd/cosign` |
| Gitleaks | 密钥/凭证扫描 | `go install github.com/gitleaks/gitleaks/v8` |
| Snyk | 商业 SCA + 可达性 | `npm install -g snyk` |
| CodeQL | 代码查询 + 数据流 | GitHub Actions 内置 |

## 参考

- `references/sbom-sca-methodology.md` — SBOM + SCA 方法论
- `references/cicd-pipeline-security.md` — CI/CD 管道安全审计


## 任务完成自检(声称完成前 MUST 通过)

- [ ] 我是否执行了工作流中的每一步(而不是只阅读)?
- [ ] 我是否基于 `tool-index` 使用了真实工具路径?
- [ ] 我是否产出了可复现证据(命令/脚本/截图/报告)?
- [ ] 我是否完成并回写了 RULES 要求的 Checklist 项?

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