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yaklang/prototype-pollution-advanced

Playbook avancé sur la pollution de prototype — RCE côté serveur, gadgets côté client, contournements de filtres et techniques de détection. Compagnon des bases pour ../prototype-pollution/. À utiliser une fois la pollution confirmée pour escalader vers l'exécution de code ou trouver des gadgets spécifiques aux frameworks.

Qu'est-ce que prototype-pollution-advanced ?

Ce skill avancé pour agents IA (compatible avec Claude Code, Cursor et Codex) fournit un playbook complet pour exploiter la pollution de prototype au-delà des bases. Il couvre des techniques avancées telles que l'exécution de code à distance (RCE) côté serveur, l'identification et l'utilisation de gadgets spécifiques aux frameworks côté client, ainsi que des méthodes de contournement de filtres. L'utilisateur est guidé à travers des procédures de détection et d'escalade de privilèges une fois la pollution de prototype confirmée, avec des exemples pratiques et des commandes adaptées à différents environnements. Ce skill est conçu pour être utilisé en complément du skill de base `../prototype-pollution/`, offrant ainsi une progression structurée pour les tests de sécurité avancés.

Compatible avec~Claude Code~Codex CLI~Cursor
npx skills add https://github.com/yaklang/hack-skills/tree/main/skills/prototype-pollution-advanced

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Documentation

Que fait prototype-pollution-advanced ?

Playbook avancé sur la pollution de prototype — RCE côté serveur, gadgets côté client, contournements de filtres et techniques de détection. Compagnon des bases pour ../prototype-pollution/. À utiliser une fois la pollution confirmée pour escalader vers l'exécution de code ou trouver des gadgets spécifiques aux frameworks.

Techniques couvertes

RCE côté serveur

  • Node.js : __proto__ pour injecter des propriétés dans des objets système.
  • Express : Pollution de res.* ou req.* pour exécuter du code personnalisé.
  • Lodash / Handlebars : Templates vulnérables avec Handlebars.compile.

Gadgets côté client

  • React : Pollution de state ou props via des composants contrôlés.
  • Vue.js : Modification de $data ou $options pour exécuter des expressions.
  • Angular : Gadgets basés sur $scope ou des expressions template.

Contournements de filtres

  • JSON.stringify → parse : Exploiter les différences de traitement.
  • Objets symboliques : Utiliser des clés spéciales comme __defineGetter__.
  • Bypass de regex : Encodage, échappement, ou clés alternatives.

Détection

  • Vérification manuelle : obj.__proto__.test = 'vuln' puis lecture de {}.test.
  • Automatisation : Scripts YAK pour scanner les surfaces d'attaque.

Exemples de commandes

yak -f advanced-pp-scan.yak --target http://example.com

yak script:
  - name: Detect PP
    proto:
      path: "/api/v1/update"
      payload: {"__proto__": {"isAdmin": true}}

Prérequis

Ressources

Individual skills in this repo

This repo contains 20 individual skills — each has its own dedicated page.

yaklang/401-403-bypass-techniques

401/403 bypass playbook. Use when encountering access-denied responses on admin panels, API endpoints, or restricted paths. Covers path manipulation, HTTP method tampering, header injection, protocol downgrade, and automated bypass tools.

yaklang/active-directory-acl-abuse

Active Directory ACL abuse playbook. Use when exploiting misconfigured AD permissions including GenericAll, WriteDACL, DCSync rights, shadow credentials, LAPS reading, GPO abuse, and BloodHound-guided attack paths.

yaklang/active-directory-certificate-services

AD Certificate Services attack playbook. Use when targeting misconfigured AD CS for privilege escalation via ESC1-ESC13 template abuse, NTLM relay to enrollment, CA officer abuse, and certificate-based persistence.

yaklang/active-directory-kerberos-attacks

Kerberos attack playbook for Active Directory. Use when targeting AD authentication via AS-REP roasting, Kerberoasting, golden/silver/diamond tickets, delegation abuse, or pass-the-ticket attacks.

yaklang/ai-ml-security

AI/ML security playbook. Use when assessing model supply chain attacks (pickle RCE, poisoned weights), adversarial examples, model poisoning, model stealing, data privacy attacks (membership inference, model inversion), and autonomous agent security risks.

yaklang/android-pentesting-tricks

Android pentesting playbook. Use when testing Android applications for SSL pinning bypass, exported component abuse, WebView vulnerabilities, intent redirection, root detection bypass, tapjacking, and backup extraction during authorized mobile security assessments.

yaklang/anti-debugging-techniques

Anti-debugging detection and bypass playbook. Use when reversing protected binaries that detect debuggers via ptrace, PEB flags, timing checks, or signal/exception handlers on Linux and Windows.

yaklang/api-auth-and-jwt-abuse

API authentication and JWT abuse playbook. Use when testing bearer tokens, API keys, claim trust, header spoofing, rate limits, and API auth boundary weaknesses.

yaklang/api-authorization-and-bola

API authorization and BOLA testing playbook. Use when APIs expose object identifiers, nested resources, hidden writable fields, or weak function-level authorization.

yaklang/api-recon-and-docs

API reconnaissance and documentation review playbook. Use when discovering endpoints, schemas, versions, OpenAPI specs, hidden docs, and surface area for API testing.

yaklang/api-sec

Entry P1 category router for API security. Use when choosing between API recon, authorization, token abuse, and hidden-parameter workflows before any deeper API topic skill.

yaklang/arbitrary-write-to-rce

Arbitrary write to RCE playbook. Use when you have an arbitrary write primitive (from heap exploitation, format string, or OOB write) and need to convert it into code execution by targeting GOT, hooks, _IO_FILE vtable, exit_funcs, TLS_dtor_list, modprobe_path, .fini_array, or C++ vtables.

yaklang/authbypass-authentication-flaws

Authentication bypass testing playbook. Use when assessing login flows, password reset logic, account recovery, MFA bypass, token predictability, brute-force resistance, and session boundary flaws.

yaklang/auth-sec

Entry P1 category router for authentication and authorization. Use when testing login flows, sessions, object authorization, JWT, OAuth, CORS, CSRF, and enterprise SSO weaknesses before any deeper auth topic skill.

yaklang/binary-protection-bypass

Binary protection bypass playbook. Use when identifying and bypassing ASLR, PIE, NX/DEP, stack canary, RELRO, FORTIFY_SOURCE, CET, and MTE protections in ELF binaries to enable exploitation.

yaklang/browser-exploitation-v8

Browser and V8 exploitation playbook. Use when exploiting JavaScript engine vulnerabilities including JIT type confusion, incorrect bounds elimination, and V8 sandbox bypass to achieve renderer RCE and sandbox escape in Chrome/Chromium.

yaklang/business-logic-vuln

Entry P1 category router for business logic testing. Use when workflow abuse, race conditions, pricing flaws, or multi-step state attacks matter more than parser-level input injection.

yaklang/business-logic-vulnerabilities

Business logic vulnerability playbook. Use when reasoning about workflows, race conditions, price manipulation, coupon abuse, state machines, and multi-step authorization gaps.

yaklang/classical-cipher-analysis

Classical cipher analysis playbook. Use when encountering substitution ciphers, Vigenere, transposition, XOR, or encoded text in CTF challenges that requires frequency analysis, Kasiski examination, or known-plaintext cryptanalysis.

yaklang/clickjacking

Clickjacking playbook. Use when testing whether target pages can be framed, whether X-Frame-Options or CSP frame-ancestors are properly configured, and whether UI redress attacks can trigger sensitive actions.

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