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Authentication Bypass

easy30 mintryhackme

Learn four methods of bypassing website authentication: username enumeration via error message differences, brute-forcing credentials with ffuf, exploiting a logic flaw in password reset to hijack another user's account, and cookie tampering to escalate privileges. All attacks target the Acme IT Support website and demonstrate real-world authentication weaknesses.

Skills You Will Learn

username-enumerationbrute-forcelogic-flawcookie-tamperingffufbase64md5

Prerequisites

Walkthrough Phases

1

Username Enumeration

Build a list of valid usernames using error message differences

2

Brute Force Attack

Find valid credentials using the enumerated usernames

3

Logic Flaw Exploitation

Hijack a password reset to take over Robert's account

4

Cookie Tampering

Manipulate cookies to escalate privileges

10 questions to answer

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