offensive-race-condition

Coordinate parallel requests to identify and exploit race conditions in web applications.

1|Updated Apr 27, 2026
One-click install
npx skills add https://github.com/riparino/Claude-Cyber --skill offensive-race-condition
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: offensive-race-condition
Source: https://github.com/riparino/Claude-Cyber/tree/main/Claude-Red/Skills/offensive-race-condition
Command: npx skills add https://github.com/riparino/Claude-Cyber --skill offensive-race-condition

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Race-condition testing toolkit enables security and development teams to identify and exploit TOCTOU and related concurrency flaws by coordinating highly parallel requests against critical code paths.

Core Features & Use Cases

  • Parallelized race testing across multi-step transactions and resource-constrained operations
  • API, WebSocket, and cloud/serverless testing techniques to observe timing vulnerabilities
  • Real-world use case guidance for bug bounty, incident response, and secure development

Quick Start

Load this skill and begin structured parallel tests against target endpoints to reveal race-condition vulnerabilities.

Frequently Asked Questions about offensive-race-condition

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

FAQPage Schema
What is a TOCTOU race condition and how do I test for it?

You test for race conditions by coordinating highly parallel requests against multi-step transactions to observe and exploit timing vulnerabilities. Apply deterministic steps and timing controls to reproduce concurrency flaws across API endpoints.

How do I exploit race conditions in web applications using parallel requests?

Exploit race conditions by sending coordinated parallel requests to resource-limited features and critical code paths. This targets multi-step transactions to reveal concurrency flaws and timing vulnerabilities across API endpoints.

Can I test for race conditions in serverless and cloud environments?

Yes, you can apply race condition testing to cloud and serverless environments. Testing techniques target API endpoints and WebSockets to observe timing vulnerabilities specific to distributed serverless architectures.

What's the best way to reproduce concurrency flaws in API endpoints?

Implement deterministic steps, timing controls, and observability during parallel testing to reproduce concurrency flaws. This structured approach targets susceptible API endpoints to document race-condition vulnerabilities accurately.

Does race condition testing work for bug bounty and incident response?

Race condition testing applies directly to bug bounty hunting and incident response. It provides real-world use case guidance to uncover and document TOCTOU vulnerabilities in web applications through parallel request coordination.