implementing-devsecops-security-scanning

Integrates Static Application Security Testing (SAST), Dynamic Application Security Testing (DAST), and Software Composition Analysis (SCA) into CI/CD pipelines using open-source tools. Covers Semgrep for SAST, Trivy for SCA and container scanning, OWASP ZAP for DAST, and Gitleaks for secrets detection. Activates for requests involving DevSecOps pipeline setup, automated security scanning in CI/CD, SAST/DAST/SCA integration, or shift-left security implementation.

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Dépôt: AgentFlocks/flocks
Dernière activité de la source: 5 mai 2026 à 05:45
Langue détectée de SKILL.md: anglais
Étoiles: 445
Forks: 83

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name	implementing-devsecops-security-scanning
description	Integrates Static Application Security Testing (SAST), Dynamic Application Security Testing (DAST), and Software Composition Analysis (SCA) into CI/CD pipelines using open-source tools. Covers Semgrep for SAST, Trivy for SCA and container scanning, OWASP ZAP for DAST, and Gitleaks for secrets detection. Activates for requests involving DevSecOps pipeline setup, automated security scanning in CI/CD, SAST/DAST/SCA integration, or shift-left security implementation.
domain	cybersecurity
subdomain	application-security
tags	["devsecops","SAST","DAST","SCA","semgrep","trivy","owasp-zap","gitleaks","CI-CD","shift-left"]
version	1.0.0
author	mahipal
license	Apache-2.0
nist_csf	["PR.PS-01","PR.PS-04","ID.RA-01","PR.DS-10"]

Implementing DevSecOps Security Scanning

When to Use

Setting up automated security scanning in a new or existing CI/CD pipeline
Shifting security left by catching vulnerabilities before code reaches production
Meeting compliance requirements (SOC 2, PCI-DSS, ISO 27001) that mandate automated security testing
Integrating SAST, DAST, and SCA together to achieve comprehensive application security coverage
Establishing security gates that block deployments containing critical or high-severity vulnerabilities

Do not use as a replacement for manual penetration testing. Automated scanning catches common vulnerability patterns but cannot replace human-driven security assessments for business logic flaws and complex attack chains.

Prerequisites

CI/CD platform: GitHub Actions, GitLab CI, Jenkins, or Azure DevOps
Container runtime (Docker) for running scanning tools
A staging environment URL for DAST scanning (DAST cannot test static code)
Repository access with permissions to modify CI/CD workflow files
Tool-specific requirements:
- Semgrep: free for open-source rulesets (p/security-audit, p/owasp-top-ten)
- Trivy: free, no account required
- OWASP ZAP: free, Docker image available
- Gitleaks: free, no account required

Workflow

Step 1: Add Secrets Detection with Gitleaks

Secrets detection runs first because leaked credentials are the highest-priority finding. Add to .github/workflows/security.yml:

name: DevSecOps Security Pipeline
on:
  push:
    branches: [main, develop]
  pull_request:
    branches: [main]

jobs:
  secrets-scan:
    name: Secrets Detection (Gitleaks)
    runs-on: ubuntu-latest

[extend]
useDefault = true

[allowlist]
description = "Global allowlist"
paths = [
  '''\.gitleaks\.toml''',
  '''test/fixtures/.*''',
  '''docs/examples/.*'''
]

[[rules]]
id = "custom-internal-api-key"
description = "Internal API key pattern"
regex = '''INTERNAL_KEY_[A-Za-z0-9]{32}'''
tags = ["internal", "api-key"]

  sast-scan:
    name: SAST (Semgrep)
    runs-on: ubuntu-latest
    container:
      image: semgrep/semgrep
    steps:
      - uses: actions/checkout@v4

      - name: Run Semgrep SAST scan
        run: |
          semgrep scan \
            --config p/security-audit \
            --config p/owasp-top-ten \
            --config p/secrets \
            --severity ERROR \
            --error \
            --json \
            --output semgrep-results.json \
            .

      - name: Upload SAST results
        if: always()
        uses: actions/upload-artifact@v4
        with:
          name: semgrep-results
          path: semgrep-results.json

rules:
  - id: no-exec-user-input
    patterns:
      - pattern: exec($INPUT)
      - pattern-not: exec("...")
    message: >
      User input passed to exec(). This is a command injection vulnerability.
    severity: ERROR
    languages: [python]
    metadata:
      cwe: "CWE-78: OS Command Injection"
      owasp: "A03:2021 - Injection"

  - id: no-raw-sql-queries
    patterns:
      - pattern: cursor.execute(f"...")
      - pattern: cursor.execute("..." + ...)
    message: >
      SQL query built with string concatenation or f-strings. Use parameterized queries.
    severity: ERROR
    languages: [python]
    metadata:
      cwe: "CWE-89: SQL Injection"
      owasp: "A03:2021 - Injection"

  sca-scan:
    name: SCA & Container Scan (Trivy)
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4

      - name: Run Trivy filesystem scan (dependencies)
        uses: aquasecurity/trivy-action@0.28.0
        with:
          scan-type: 'fs'
          scan-ref: '.'
          severity: 'CRITICAL,HIGH'
          exit-code: '1'
          format: 'json'
          output: 'trivy-fs-results.json'

      - name: Run Trivy IaC scan (Terraform, CloudFormation)
        uses: aquasecurity/trivy-action@0.28.0
        with:
          scan-type: 'config'
          scan-ref: '.'
          severity: 'CRITICAL,HIGH'
          exit-code: '1'
          format: 'json'
          output: 'trivy-iac-results.json'

      - name: Upload SCA results
        if: always()
        uses: actions/upload-artifact@v4
        with:
          name: trivy-results
          path: trivy-*.json

  container-scan:
    name: Container Image Scan (Trivy)
    runs-on: ubuntu-latest
    needs: [sast-scan]  # Build image only after SAST passes
    steps:
      - uses: actions/checkout@v4

      - name: Build Docker image
        run: docker build -t app:${{ github.sha }} .

      - name: Scan container image
        uses: aquasecurity/trivy-action@0.28.0
        with:
          image-ref: 'app:${{ github.sha }}'
          severity: 'CRITICAL,HIGH'
          exit-code: '1'
          format: 'json'
          output: 'trivy-image-results.json'

      - name: Generate SBOM
        uses: aquasecurity/trivy-action@0.28.0
        with:
          image-ref: 'app:${{ github.sha }}'
          format: 'cyclonedx'
          output: 'sbom.json'

      - name: Upload SBOM
        uses: actions/upload-artifact@v4
        with:
          name: sbom
          path: sbom.json

  dast-scan:
    name: DAST (OWASP ZAP)
    runs-on: ubuntu-latest
    needs: [deploy-staging]  # Must run after app is deployed to staging
    steps:
      - uses: actions/checkout@v4

      - name: Run ZAP Baseline Scan (fast, suitable for CI)
        uses: zaproxy/action-baseline@v0.14.0
        with:
          target: ${{ vars.STAGING_URL }}
          rules_file_name: '.zap/rules.tsv'
          cmd_options: '-a -j'

      # For nightly full scans, use action-full-scan instead:
      # - name: Run ZAP Full Scan (comprehensive, 30-60 min)
      #   uses: zaproxy/action-full-scan@v0.12.0
      #   with:
      #     target: ${{ vars.STAGING_URL }}

10010	IGNORE	(Cookie No HttpOnly Flag - acceptable for non-sensitive cookies)
10011	IGNORE	(Cookie Without Secure Flag - staging uses HTTP)
90033	WARN	(Loosely Scoped Cookie)
10038	FAIL	(Content Security Policy Header Not Set)
40012	FAIL	(Cross Site Scripting - Reflected)
40014	FAIL	(Cross Site Scripting - Persistent)
40018	FAIL	(SQL Injection)
90019	FAIL	(Server Side Code Injection)
90020	FAIL	(Remote OS Command Injection)

  security-gate:
    name: Security Gate
    runs-on: ubuntu-latest
    needs: [secrets-scan, sast-scan, sca-scan, container-scan]
    if: always()
    steps:
      - name: Check scan results
        run: |
          echo "Checking security scan results..."

          # Fail the pipeline if any upstream job failed
          if [[ "${{ needs.secrets-scan.result }}" == "failure" ]]; then
            echo "BLOCKED: Secrets detected in repository"
            exit 1
          fi

          if [[ "${{ needs.sast-scan.result }}" == "failure" ]]; then
            echo "BLOCKED: SAST found critical/high vulnerabilities"
            exit 1
          fi

          if [[ "${{ needs.sca-scan.result }}" == "failure" ]]; then
            echo "BLOCKED: SCA found critical/high vulnerable dependencies"
            exit 1
          fi

          if [[ "${{ needs.container-scan.result }}" == "failure" ]]; then
            echo "BLOCKED: Container image has critical/high vulnerabilities"
            exit 1
          fi

          echo "All security gates passed"

GitHub Repository > Settings > Branches > Branch Protection Rules

Branch name pattern: main
  Require status checks to pass before merging: Enabled
    Required status checks:
      - Secrets Detection (Gitleaks)
      - SAST (Semgrep)
      - SCA & Container Scan (Trivy)
      - Security Gate
  Require branches to be up to date before merging: Enabled

# .pre-commit-config.yaml
repos:
  - repo: https://github.com/gitleaks/gitleaks
    rev: v8.22.1
    hooks:
      - id: gitleaks

  - repo: https://github.com/semgrep/semgrep
    rev: v1.102.0
    hooks:
      - id: semgrep
        args: ['--config', 'p/security-audit', '--config', 'p/owasp-top-ten', '--error']

pip install pre-commit
pre-commit install
pre-commit run --all-files  # Test against existing codebase

Term	Definition
SAST (Static Application Security Testing)	Analyzes source code without executing it to find security vulnerabilities; runs fast, catches issues early, but cannot find runtime flaws
DAST (Dynamic Application Security Testing)	Tests a running application by sending requests and analyzing responses; finds runtime issues but requires a deployed environment
SCA (Software Composition Analysis)	Scans project dependencies against vulnerability databases (NVD, GitHub Advisory) to find known-vulnerable libraries
SBOM (Software Bill of Materials)	Machine-readable inventory of all components and dependencies in an application, used for vulnerability tracking and compliance
Shift Left	Security practice of moving security testing earlier in the SDLC, from post-deployment to pre-commit and CI stages
Security Gate	A CI/CD pipeline checkpoint that blocks deployment if security scan results exceed defined severity thresholds
Pre-commit Hook	Local Git hook that runs security checks before code is committed, providing the fastest developer feedback loop