authbypass-authentication-flaws

Identify authentication bypass paths in login, password reset, MFA, and session workflows.

5|2|Updated May 16, 2026
One-click install
npx skills add https://github.com/DorianGallo/hack-skills-local --skill authbypass-authentication-flaws-doriangallo
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: authbypass-authentication-flaws
Source: https://github.com/DorianGallo/hack-skills-local/tree/main/skills/authbypass-authentication-flaws
Command: npx skills add https://github.com/DorianGallo/hack-skills-local --skill authbypass-authentication-flaws-doriangallo

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

This skill helps identify how attackers can bypass authentication controls by exploiting login flows, password reset logic, token handling, MFA weaknesses, and session boundary flaws.

Core Features & Use Cases

  • Authentication bypass testing playbook: Systematically test common bypass paths such as SQL-based login bypass, password reset token weaknesses, and account enumeration side channels.
  • Password reset & MFA failure modes: Evaluate predictable/non-expiring/reusable reset tokens, host-header and referer token leakage, and multi-factor bypass techniques like session-before-2FA, code brute force/replay, and backup code abuse.
  • Session management weaknesses: Check logout invalidation, privilege-change session regeneration gaps, and predictability of session identifiers to determine exploitability.

Quick Start

Use the authbypass-authentication-flaws skill to design a structured assessment of the target’s login, password reset, 2FA, and session handling by requesting likely bypass paths and the minimal checks to confirm each.

Frequently Asked Questions about authbypass-authentication-flaws

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
What is an authentication bypass in web security testing?

To test password reset token weaknesses, you evaluate predictable, non-expiring, or reusable tokens alongside host-header and referer leakage vectors. This skill guides targeted checks to confirm token lifecycle flaws and ensure findings map to exploit preconditions.

How do I test password reset token weaknesses and leakage vectors?

To test password reset token weaknesses, you evaluate predictable, non-expiring, or reusable tokens alongside host-header and referer leakage vectors. This skill guides targeted checks to confirm token lifecycle flaws and ensure findings map to exploit preconditions.

Can I use this to check MFA bypass techniques like session-before-2FA and code replay?

Yes, you can check MFA bypass techniques including session-before-2FA, code brute force, replay, and backup code abuse. The skill evaluates MFA step enforcement to identify multi-factor bypass opportunities during authorized penetration testing.

How do you test session management weaknesses across privilege transitions?

You test session management weaknesses by checking logout invalidation, session predictability, and session regeneration gaps during privilege changes. This skill helps determine exploitability of session boundary enforcement failures across user role transitions.

What is the best way to find login bypass paths using SQL injection?

The best way to find SQL login bypass paths is through structured validation coverage of login injection vectors. This skill provides a systematic testing playbook to identify authentication bypass opportunities and confirm concrete exploit preconditions safely.