supply-chain-security
Skill26 starsChanged 10 days agoMITView on GitHub
Assess software supply chains through SBOM and dependency analysis, container scanning, CI/CD review, and build provenance. Use for dependency risks, pipeline security, and third-party component assessments.
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Supply Chain Security Testing
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
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
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)
# 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
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
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
# 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:tag6. 第三方依赖审查
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
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