By name: auth-bypass description: Hunt authentication/authorization bypass in route guards, role checks, tenant boundaries, and state-machine transitions. metadata: subdomain: web-exploitation when_to_use: "authentication authorization bypass route guard role check tenant boundary state machine transition session jwt"
Auth Bypass Playbook
Targets
- Endpoints with role-based access
- Admin-only routes
- Tenant-scoped resources
- Multi-step auth flows (MFA, password reset)
Common failure patterns
- Missing middleware on one route variant
- Trusting client-controlled role/tenant fields
- TOCTOU between check and action
- Alternate API versions lacking guard checks
Validation
- Positive: low-priv session performs high-priv action.
- Negative: same request with expected guard path should deny.