Fixing a Password Reset Flow is a practical security course for beginners who can enter a terminal command and switch browser tabs. You will repair a small prepared application so a reset link belongs to one account, expires correctly, and works only once.
One Guided Lab takes you through normal recovery, visible misuse, a small Python repair, and regression testing in four focused steps. One Challenge transfers the same rules to a staff portal with different accounts and an incorrectly combined condition. Each unit starts in its own independent environment.
What You Will Learn
- Follow a reset email and distinguish a temporary token from a login password.
- Demonstrate replay, wrong-account use, and expired-token misuse with synthetic accounts.
- Read and edit a small Python function using explained conditions and a prepared transaction helper.
- Require stored ownership, a future expiry, unused state, and atomic token consumption.
- Test legitimate recovery and login alongside rejected misuse, including competing requests and unchanged unrelated accounts.
Who This Course Is For
This course is for beginners curious about application security and account recovery. Basic terminal input and tab switching are the only prerequisites; no Python, SQL, or authentication-development experience is required. The lesson explains the small code edit before you make it.
LabEx provides a ready-to-use Linux instance with App Server, Portal Web, and Mailbox Web. Mail delivery and identities are synthetic; HTTP requests, SQLite transactions, password changes, and login really execute. No local setup or external email service is needed.
Frequently Asked Questions
Do I need to write an authentication system?
No. You repair one small handler. Locking, password hashing, and the rest of the application are prepared; the lesson teaches the Python syntax you edit.
How is completion checked?
Checks inspect real account outcomes and execute your unchanged handler in disposable HTTP/database fixtures. Valid recovery must work while invalid requests fail. Reports, copied logs, and success labels are not graded.
Is this a complete production security checklist?
No. The focus is ownership, expiry, one-time use, and atomicity. Secure delivery, rate limits, session invalidation, enumeration resistance, and production identity assurance are outside the course. The Challenge reuses the taught tools and token schema without adding a new authentication protocol.
