hunt-http-smuggling

Detect HTTP request smuggling vulnerabilities by analyzing header parsing inconsistencies.

3|Updated Nov 12, 2025
One-click install
npx skills add https://github.com/cmndcntrlcyber/rtpi --skill hunt-http-smuggling-cmndcntrlcyber
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: hunt-http-smuggling
Source: https://github.com/cmndcntrlcyber/rtpi/tree/main/knowledge_seed/bug_hunter_skills/hunt-http-smuggling
Command: npx skills add https://github.com/cmndcntrlcyber/rtpi --skill hunt-http-smuggling-cmndcntrlcyber

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes scripts (resource) components.

What problem does it solve?

This Skill is designed to identify HTTP request smuggling vulnerabilities in web applications, where inconsistencies in header parsing can lead to information leakage or unauthorized actions.

Core Features & Use Cases

  • Vulnerability Detection: Identifies CL.TE, TE.CL, H2.CL, and H2.TE vulnerabilities based on header parsing inconsistencies.
  • Impact Analysis: Provides an impact chain showing potential attacks such as cache poisoning, credential theft, and bypassing authentication.
  • Target Suitability Matrix: Includes a matrix for modern proxies and servers, detailing their susceptibility to these vulnerabilities.
  • Quick Start: Use the hunt-http-smuggling skill to check for HTTP request smuggling vulnerabilities on your target.

Quick Start

Run the hunt-http-smuggling skill against the target to check for HTTP request smuggling vulnerabilities.

Frequently Asked Questions about hunt-http-smuggling

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

FAQPage Schema
How do I detect HTTP request smuggling vulnerabilities in web applications?

Detect HTTP request smuggling vulnerabilities by analyzing header parsing inconsistencies between modern proxies and servers. This identifies exploitation vectors like cache poisoning, credential theft, and authentication bypass caused by architectural mismatches.

What types of HTTP request smuggling attacks can header parsing analysis identify?

Header parsing analysis identifies CL.TE, TE.CL, H2.CL, and H2.TE vulnerabilities. It maps these inconsistencies to an impact chain showing potential attacks such as cache poisoning, credential theft, and bypassing authentication mechanisms.

How does HTTP request smuggling lead to cache poisoning and authentication bypass?

HTTP request smuggling causes cache poisoning and authentication bypass by exploiting header parsing inconsistencies between proxies and servers. This allows malicious requests to bypass front-end security controls and hit back-end systems directly.

Do I need knowledge of application architecture to check for HTTP request smuggling?

Yes, checking for HTTP request smuggling requires knowledge of HTTP header handling and application architecture. Understanding how modern web application proxies and servers process headers is necessary to interpret parsing inconsistencies accurately.

Are modern web proxies and servers susceptible to HTTP request smuggling?

Modern web proxies and servers are susceptible to HTTP request smuggling. A target suitability matrix details their specific vulnerabilities to CL.TE, TE.CL, H2.CL, and H2.TE header parsing inconsistencies during analysis.

What is the best way to analyze CL.TE and TE.CL header parsing inconsistencies?

The best way to analyze CL.TE and TE.CL header parsing inconsistencies is to run an automated detection skill against the target. This checks web application responses for mismatches and maps them to potential exploitation vectors.

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