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Agile Greenfield DevSecOps/AppSec Plan for Website Development
1. Objectives
* Deliver high-quality, secure web applications while maintaining Agile velocity.
* Embed security-by-design principles into every stage of development.
* Automate security scanning and enforcement to minimize manual bottlenecks.
* Foster a culture where security is shared across development, QA, and operations.

2. Key Vulnerabilities and Mitigation Strategies

Vulnerability	Mitigation Strategy	Tools/Process
Injection (SQL, NoSQL, etc.)	Parameterized queries, ORM use, input validation	SAST, Code Review
Broken Authentication	Strong authentication (MFA, OAuth2), secure session management	OIDC Libraries, Pen Testing
Sensitive Data Exposure	TLS 1.2+, encryption at rest, minimal data retention	TLS Config, Secrets Management
XML External Entities (XXE)	Safe XML parsers, disabling DTDs	SAST, Code Standards Review
Broken Access Control	Role-based access controls (RBAC), deny-by-default policies	Manual Reviews, Automated Tests
Security Misconfiguration	Hardened templates, config-as-code, secrets management	IaC Scanning (Checkov, tfsec)
Cross-Site Scripting (XSS)	Output encoding, CSP headers, input sanitization	SAST, Manual Browser Testing
Insecure Deserialization	Avoid deserializing untrusted data, use safe serialization formats	Code Review, Pen Testing
Using Vulnerable Components	Automated dependency scanning, patch management	SCA Tools (Snyk, OWASP DC)
Insufficient Logging & Monitoring	Centralized logs, anomaly detection, correlation alerts	SIEM, Audit Trails, Log Review

3. Agile Security Integration by Sprint Phase

|| Agile Phase

|| Security Activities

|| Backlog Grooming

|| Create security user stories (e.g., "All inputs must be validated.")

|| Sprint Planning

|| Define security acceptance criteria for user stories

|| Development

|| Enforce secure coding guidelines, use pre-commit hooks

|| Code Review

|| Mandatory security checklist (auth, input validation, error handling)

|| CI/CD Build

|| Automate SAST, SCA, secret detection

|| QA/Testing

|| Perform DAST, dynamic fuzzing, API security tests

|| Release/Deployment

|| Perform final security verification, infrastructure scans

|| Retrospective

|| Capture and remediate lessons learned from incidents/near-misses

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4. Security Automation and Toolchain

|| Security Layer

|| Tool Examples

|| SAST

|| SonarQube, Semgrep

|| DAST

|| OWASP ZAP, BurpSuite (Pro/Automated)

|| SCA

|| Snyk, OWASP Dependency-Check

|| Secrets Scanning

|| TruffleHog, GitLeaks

|| IaC/Container Scanning

|| Checkov, Terraform Sentinel, DockerScan

Trigger all tools during CI builds to detect vulnerabilities early. \
* Fail builds automatically if critical/high vulnerabilities are detected. \

### 5. DevSecOps CI/CD Pipeline Example

### 6. Culture and Education Initiatives
* Security Champion Program: Appoint a security-aware developer per Agile team. \
* Monthly Security Workshops: 30-minute targeted learning (e.g., "Preventing XSS in React"). \
* Capture-the-Flag (CTF) Challenges: Hands-on practice sessions. \
* Gamified Security Metrics: Reward teams with "security points" for excellent practices. \
7. Success Metrics

|| Metric

|| Target

|| % of builds passing security gates

|| ≥ 95%

|| Mean Time to Remediate vulnerabilities

|| < 7 days

|| Number of secrets committed to repo

|| 0

|| Dependency freshness score

|| ≥ 90% updated within 30 days

|| Developer security training coverage

|| 100% within 6 months

Agile DevSecOps + AppSec Visual Map
Security is not a stage, it's a continuous flow embedded through the pipeline.
Summary
This Agile DevSecOps/AppSec plan ensures rapid development with full-spectrum security baked in at every stage. Automation, cultural transformation, and rigorous vulnerability mitigation make secure, fast delivery not only possible but predictable.

Last modified by Proviance @ 5/12/2025 9:02:00 AM

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