hunt-auth-bypass

Identify and validate authentication bypass vulnerabilities across web application stacks.

3|1|Updated Jul 2, 2026
One-click install
npx skills add https://github.com/EntroVyx/hermes-agent-offsec --skill hunt-auth-bypass-entrovyx
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: hunt-auth-bypass
Source: https://github.com/EntroVyx/hermes-agent-offsec/tree/main/skills/offsec/redteam/hunt-auth-bypass
Command: npx skills add https://github.com/EntroVyx/hermes-agent-offsec --skill hunt-auth-bypass-entrovyx

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

This skill addresses the critical security gap where authentication mechanisms are inconsistently enforced across different entry points, such as legacy protocol endpoints, API gateways, and federated identity providers.

Core Features & Use Cases

  • Legacy Protocol Probing: Automatically tests forgotten endpoints like XMLRPC, SharePoint SOAP services, and management interfaces that often bypass modern SSO and MFA.
  • SAML & JWT Analysis: Provides methodologies for testing signature stripping, XML comment injection, and algorithm confusion attacks.
  • Cross-Portal Validation: Identifies privilege escalation risks where tokens or sessions are improperly reused across different trust domains or subdomains.

Quick Start

Use the hunt-auth-bypass skill to probe the target domain for legacy authentication endpoints and verify if they accept native credentials.

Frequently Asked Questions about hunt-auth-bypass

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

FAQPage Schema
How do I test for authentication bypass vulnerabilities in legacy web endpoints?

Authentication bypass vulnerabilities in legacy web endpoints are identified by probing forgotten protocols like XMLRPC and SharePoint SOAP services that often bypass modern SSO. This skill systematically enumerates these entry points to verify unauthorized access vectors using native credentials.

What is the best way to test JWT signature validation flaws during a pentest?

Testing JWT signature validation flaws involves methodologies for signature stripping and algorithm confusion attacks. This skill provides targeted analysis techniques to exploit these specific token validation weaknesses across federated identity implementations.

How does SAML authentication bypass work through XML comment injection?

SAML authentication bypass through XML comment injection works by manipulating signature validation logic within federated identity providers. This skill identifies these flaws by performing differential response analysis on targeted identity endpoints.

Can I use this to detect cross-portal session reuse and privilege escalation?

Yes, you can detect cross-portal session reuse and privilege escalation risks where tokens are improperly reused across different trust domains or subdomains. This skill validates these vectors by analyzing inconsistent enforcement across API gateways.

Does this skill support probing management interfaces that bypass MFA?

Yes, this skill supports probing forgotten management interfaces that often bypass modern MFA enforcement. It automatically tests these legacy protocol endpoints to confirm if they accept native credentials without requiring secondary authentication factors.

Why does differential response analysis matter when enumerating authentication entry points?

Differential response analysis matters because it confirms unauthorized access vectors by comparing server responses across inconsistently enforced authentication entry points. This systematic enumeration ensures validated exploitation of authentication bypass vulnerabilities.