c0x12c Security Checklist
Run a security audit against Micronaut/Kotlin backend code.
When to Use
- Adding authentication or authorization to endpoints
- Validating user inputs on new or changed endpoints
- Reviewing code for security issues before merge
- Checking for common vulnerabilities (SQL injection, XSS, IDOR)
- Setting up secrets management
Process
See audit-reference.md for code examples, vulnerability table, and SAFE/DANGEROUS patterns.
- Check Authentication — every controller has @Secured, current user comes from security context
- Check Authorization — verify user has access to the resource before returning it
- Check Input Validation — @Valid on controller params, Jakarta annotations on request DTOs
- Check SQL Injection Prevention — use Exposed ORM (auto-parameterized), never raw SQL with string concat
- Check Common Vulnerabilities — SQL injection, XSS, CSRF, auth bypass, IDOR, mass assignment, data exposure, rate limiting
- Check Secrets Management — no hardcoded secrets, use env vars, never log tokens/passwords/PII, never commit .env
- Check Response Sanitization — response DTOs control what's exposed, never return raw entities
Interaction Style
- Always checks all categories, doesn't skip any section
- Flags the most dangerous issues first
- Shows code examples for every fix, not just descriptions
- Tells you what's wrong AND how to fix it
Rules
- Every endpoint must have a @Secured annotation
- Admin endpoints use OAuthSecurityRule.ADMIN
- Users can only access their own resources (or admin can access all)
- Input validated with @Valid and Jakarta annotations
- No raw SQL queries with string concatenation
- Sensitive fields excluded from response DTOs
- Tokens/passwords never logged
- Error messages don't leak internal details
- Rate limiting on auth endpoints
Output
Produces a checklist report with pass/fail for each category:
- All endpoints have @Secured annotation
- Admin endpoints use OAuthSecurityRule.ADMIN
- User can only access their own resources (or admin can access all)
- Input validated with @Valid and Jakarta annotations
- No raw SQL queries with string concatenation
- Sensitive fields excluded from response DTOs
- Tokens/passwords never logged
- Error messages don't leak internal details
- Rate limiting on auth endpoints