hunt-race-condition
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.
68
83%
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Critical
Do not install without reviewing
Security
3 findings: 2 critical severity, 1 high severity. Installing this skill is not recommended: please review these findings carefully if you do intend to do so.
E004: Prompt injection detected in skill instructions.
What this means
Detected a prompt injection in the skill instructions. The skill contains hidden or deceptive instructions that fall outside its stated purpose and attempt to override the agent’s safety guidelines or intended behavior.
Why it was flagged
The document contains explicit, actionable instructions and tooling (examples, scripts, and protocols) for conducting race-condition attacks — including HTTP/2 single-packet, Turbo Intruder templates, curl/async mass requests, and Flatt first-sequence-sync — to bypass rate limits, double-spend, brute-force OTPs and otherwise exploit targets.
E006: Malicious code pattern detected in skill scripts.
What this means
Detected high-risk code patterns in the skill content — including its prompts, tool definitions, and resources — such as data exfiltration, backdoors, remote code execution, credential theft, system compromise, supply chain attacks, and obfuscation techniques.
Why it was flagged
The document contains explicit, actionable attack instructions and runnable code (Turbo Intruder templates, curl and asyncio scripts) for synchronized HTTP/2 single-packet and first-sequence-sync race attacks (including 10k-request PIN brute-force and coupon/gift-card double-spend), showing clear intent to violate remote systems and providing a viable execution mechanism.
W007: Insecure credential handling detected in skill instructions.
What this means
The skill handles credentials insecurely by requiring the agent to include secret values verbatim in its generated output. This exposes credentials in the agent’s context and conversation history, creating a risk of data exfiltration.
Why it was flagged
The skill includes examples that instruct embedding session cookies directly into command headers (e.g., curl -H "Cookie: session=...") and similar literal header values in sample code, which would require an agent to insert or reproduce secret session tokens verbatim in generated commands—an exfiltration risk.
- Repository
- elementalsouls/Claude-BugHunter
- Commit
58017df
- Audited
- Security analysis
Is this your skill?
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