> tpl_sec_010
Secure SDLC and Security-Gate Plan
Engineering security baseline integrating threat modeling, pre-commit secret detection, automated SAST/DAST/SCA quality gates, container image signing, and deployment blocking thresholds.
DevSecOps software security standard establishing blocking CI/CD security gates across static analysis, software composition (SCA), dynamic scanning, and cryptographic artifact provenance.
Important Tech Document Template & Operational Notice
TinyCTO.tv Tech Document Template Notice: This template is a general educational and operational starting point. It is not legal, tax, accounting, investment, procurement, regulatory, security or certification advice. Requirements vary by jurisdiction, organization, contract and risk. Review and adapt it with qualified professionals before relying on it.
Problem Solved
Security reviews occur days before planned production release, creating massive engineering friction, delayed launch dates, or forced executive waivers that push critical vulnerabilities directly into production.
When to Use
- •Establishing automated "shift-left" security controls across developer IDEs, git repositories, and CI/CD pipelines
- •Implementing the NIST Secure Software Development Framework (SSDF) SP 800-218
- •Configuring automated build break rules for high/critical security defects in GitHub Actions, GitLab, or Jenkins
When NOT to Use
- •For post-incident forensic root cause investigations (use TPL-SEC-013)
- •For hardware datacenter perimeter physical access controls (use TPL-OPS-014)
5 Template Sections & Structural Outline
Security activities mapped across Design, Development, Code Review, Testing, Deployment, and Operations.
Gitleaks, TruffleHog, and Semgrep pre-commit git hooks preventing credentials from entering local git history.
Static Application Security Testing (SAST), Software Composition Analysis (SCA for CVEs), and blocking failure thresholds.
Automated staging environment black-box DAST scans (OWASP ZAP), interactive IAST, and API fuzzing.
Distroless minimal base images, Cosign / Sigstore cryptographic provenance, and Kubernetes admission controllers.
Completion Instructions
Independent Review Checklist
- All mandatory sections completed
- No secrets or passwords included
- Executive sponsor sign-off obtained
Secure SDLC and Security-Gate Plan - Worked Case Study
Fictional Entity: FinTech Cloud Microservices DevSecOps Platform
Real-world production case study demonstrating complete operational adoption for FinTech Cloud Microservices DevSecOps Platform.
- •Implemented blocking CI/CD security gates across 85 microservice repositories in GitHub Actions
- •Prevented 42 high/critical open-source CVE vulnerabilities from reaching production over 12 months
- •Reduced mean time to remediate (MTTR) application security vulnerabilities from 48 days down to 6 days
Frequently Asked Questions
What is the "Shift-Left" philosophy in Secure SDLC?
Shift-Left integrates security controls at the earliest phases of development (IDE linting, pre-commit secret detection, design-time threat modeling) rather than discovering vulnerabilities during late-stage staging penetration tests.
How does automated SCA (Software Composition Analysis) prevent supply chain attacks?
SCA continuously scans open-source libraries and transitive dependencies against national vulnerability databases (NVD), instantly alerting and blocking builds if malicious or vulnerable packages are introduced.
What happens when a developer requires a temporary security waiver for a legacy library?
The exception must be logged in the Security Exception & Waiver Registry, require written sign-off from the CISO, have an explicit compensating control, and carry an immutable 30-day expiration timer.
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Authoritative Sources
- NIST SP 800-218 Secure Software Development Framework (SSDF)NIST • OFFICIAL REQUIREMENT
- OWASP Software Assurance Maturity Model (SAMM) v2.0OWASP • OFFICIAL REQUIREMENT