hunt-race-condition

Solid

Hunting skill for race condition vulnerabilities. Built from 12 public bug bounty reports including modern HTTP/2 single-packet attack cases (James Kettle DEF CON 2023 "Smashing the State Machine"; RyotaK / Flatt Security 10,000-request first-sequence-sync expansion 2024). Covers coupon double-redemption, gift-card double-spend, MFA-OTP-validate race, account-create race, faucet/crypto token double-mint, email-activation race, vote/upvote inflation, password-reset token race, rate-limit bypass via concurrent requests. Use when hunting race conditions, TOCTOU bugs, MFA-bypass-via-timing.

Data & Documents 1,380 stars 195 forks Updated 4 days ago NOASSERTION

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Quality Score: 85/100

Stars 20%
100
Recency 20%
100
Frontmatter 20%
70
Documentation 15%
100
Issue Health 10%
80
License 10%
100
Description 5%
100

Skill Content

## Crown Jewel Targets Race conditions are high-severity findings because they break financial, access control, and integrity assumptions that defenders rarely stress-test. Highest payouts come from: - **Monetary/credit systems** — double-spending gift cards, coupons, referral bonuses, promotional credits, wallet balances - **Vote/reputation manipulation** — upvoting the same content multiple times, gaming leaderboards or trending algorithms - **Account limits bypass** — exceeding free-tier quotas, bypassing "one per user" restrictions on invites, trial activations, or API key generation - **Privilege escalation** — racing role assignment or permission checks during user creation/upgrade flows - **Deletion bypass** — reading or exfiltrating data during a narrow window between "marked for deletion" and "actually deleted" - **Payment flows** — charging a card once but receiving multiple fulfillments **Best-paying asset types:** Fintech apps, SaaS platforms with credit/subscription models, social platforms with reputation systems, e-commerce checkout flows, OAuth/SSO token endpoints. --- ## Attack Surface Signals ### URL Patterns ``` /vote, /upvote, /like, /favorite /redeem, /apply-coupon, /use-code, /claim /purchase, /checkout, /confirm-order, /pay /transfer, /withdraw, /send-money /invite, /referral, /accept-invite /upgrade, /activate, /trial /delete, /deactivate, /cancel /follow, /subscribe ``` ### Response Headers That Signal Race-Prone Backends ``` X-RateLimit-* ...

Details

Author
elementalsouls
Repository
elementalsouls/Claude-BugHunter
Created
3 weeks ago
Last Updated
4 days ago
Language
Python
License
NOASSERTION

Integrates with

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