Information Disclosure — Deep Dive

Information Disclosure — Deep Dive is a skill for Claude Code, Codex from ShulkwiSEC/bb-huge. It costs 25 tokens per session (960 once invoked), scanned A, a copy of Access Control — Complete Deep Dive, MIT.

A study guide for information-disclosure vulnerabilities, where an application reveals internal details such as software versions, source code, paths, or credentials. It is based on PortSwigger lab examples and includes testing variations.

In plain words
What is it for?
Use it for certification practice, bug-bounty testing, and reviewing error messages, debug pages, backup files, and unusual HTTP behavior.
Why use it?
It helps security testers learn how small leaks can expose useful details or support larger attacks.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Needs its repository: it reads a path above its own folder, which exists only inside the repository. The line is - [`_shared/references/elite-chaining-strategy.md`](../_shared/references/elite-chaining-strategy.md) — Exploit chaining methodology and high-payout chain patte.

Good fit Use it for certification practice, bug-bounty testing, and reviewing error messages, debug pages, backup files, and unusual HTTP behavior.

Compare 6 skills from other repositories ↓
Install

Getting it into your agent

It runs from inside its repository, so the clone comes first — what it calls does not travel with the file alone.

Clone the repo
git clone --depth 1 https://github.com/ShulkwiSEC/bb-huge
agentmods
npx agentmods add skills/shulkwisec/bb-huge/info-disclosure

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for Information Disclosure — Deep Dive

README.md
[![agentmods](https://agentmods.dev/badge/skills/shulkwisec/bb-huge/info-disclosure/github.svg)](https://agentmods.dev/skills/shulkwisec/bb-huge/info-disclosure)
Your own site
<a href="https://agentmods.dev/skills/shulkwisec/bb-huge/info-disclosure"><img src="https://agentmods.dev/badge/skills/shulkwisec/bb-huge/info-disclosure/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for Information Disclosure — Deep Dive

Your own site · 80×15
<a href="https://agentmods.dev/skills/shulkwisec/bb-huge/info-disclosure"><img src="https://agentmods.dev/badge/skills/shulkwisec/bb-huge/info-disclosure.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 25 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 960 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. A grade says what 26 rules found in the file — not that it is safe.
Origin 81% copy Near-identical to another mod in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00025 $0.00960
Opus 5 $0.00013 $0.00480
Sonnet 5 $0.00005 $0.00192
Haiku 4.5 $0.00003 $0.00096

Measured 7d ago against content hash 263bd8180672, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

Information Disclosure — Deep Dive scanned grade A with 1 finding against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 7d ago.

The scan reads SKILL.md. This mod also ships 1 executable file (scripts/process.py), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

tools: [burp-suite, curl, sqlmap, ffuf, python, hashcat, ysoserial]
Origin

This is a copy

81% identical to Access Control — Complete Deep Dive — 86 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

skills/curated/info-disclosure/SKILL.md · 117 lines

How it starts

The opening of the file, as written. The whole thing — 117 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Information Disclosure — Deep Dive

Deep-Dive Lab Playbook — Every PortSwigger lab variant with exact payloads, bypass techniques, and zero-day extensions. 🟢 Apprentice 🟡 Practitioner 🔴 Expert

When to Use

  • BSCP certification prep
  • Real-world bug bounty hunting
  • Building exploitation chains
  • Understanding bypass techniques

Prerequisites

  • Burp Suite Professional
  • Burp Collaborator / interactsh
  • Browser with proxy configured

Workflow

Phase 1: Reconnaissance

  • Identify input vectors, parameters, and application behavior.

Phase 2: Exploitation

  • Apply standard lab payloads.

Phase 3: Zero-Day Escalation

  • Fuzz filters, bypass WAFs, and chain with other vulns.

Lab Playbooks

Lab 1: Error messages 🟢 APPRENTICE

Submit invalid input → error reveals Apache Struts version, framework details.

Lab 2: Debug page 🟢 APPRENTICE

/cgi-bin/phpinfo.php — reveals SECRET_KEY, database credentials, paths.

Lab 3: Source code via backup 🟢 APPRENTICE

/backup/ProductTemplate.java.bak — reveals database password in source code.

Lab 4: Auth bypass via info disclosure 🟡 PRACTITIONER

TRACE / HTTP/1.1 → response reveals X-Custom-IP-Authorization header. Set this header to 127.0.0.1 to bypass admin restriction.

Lab 5: Version control history 🟡 PRACTITIONER

wget -r https://TARGET/.git/
git log
git diff HEAD~1

Admin password visible in git diff.

Blue Team Detection

  • Monitor access logs for anomalous payloads.
  • Implement strict input validation and parameterized queries where applicable.
  • Create WAF rules masking generic attack patterns.

Zero-Day Research

When standard technique fails:

  1. Identify the filter/WAF
  2. Fuzz with Burp Intruder custom wordlists
  3. Search GitHub/Twitter for new bypasses
  4. Chain with other vulns for escalation
  5. Try encoding variants: URL, double-URL, unicode, hex

Key Concepts

Concept Description
PortSwigger Vectors Standardized approaches to vulnerability classes.
Payload Encoding Modifying payloads to bypass basic string matching WAFs.

Read the full file on GitHub · 117 lines

Files

What ships with it

1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 7d ago First seen · 117 lines · 25 tokens per session scan A 263bd8180672

Subscribe to this mod's changes

Information Disclosure — Deep Dive is a skill published in the GitHub repository ShulkwiSEC/bb-huge (22 stars, last pushed 2mo ago), licensed MIT. It adds 25 tokens to every session and 960 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). It is 81% identical to Access Control — Complete Deep Dive, differing in 86 lines, and is treated as a copy.