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yaklang/api-authorization-and-bola

API-Autorisierung und BOLA-Testspielbuch. Verwenden, wenn APIs Objekt-IDs, verschachtelte Ressourcen, versteckte beschreibbare Felder oder schwache Autorisierung auf Funktionsebene offenlegen.

Was ist api-authorization-and-bola?

Dieses Skill für KI-Agenten (wie Claude Code, Cursor oder Codex) führt ein umfassendes API-Autorisierungs- und BOLA-Testspielbuch aus, das auf der Yaklang-Plattform basiert. Es deckt gängige API-Schwachstellen ab: vertikale Eskalation (schwache Autorisierung auf Funktionsebene), horizontale Eskalation (unbefugter Zugriff auf Objekte anderer Benutzer, z. B. über IDOR/BOLA), Massenzuweisungsangriffe (versteckte beschreibbare Felder) sowie fehlerhafte HTTP-Methoden- oder Header-Handhabung. Der Skill analysiert automatisch die API-Struktur, generiert Testfälle für die Vertrauensgrenzen-Überschreitung, validiert autorisierte versus nicht autorisierte Anfragen und liefert detaillierte Sicherheitsberichte mit Ausnutzungspfaden und Abhilfeempfehlungen. Er ist nützlich für Sicherheitsforscher, Penetrationstester und Entwickler, die REST-, GraphQL- und gRPC-APIs auf Schwachstellen im Zugriffssteuerungsmechanismus testen.

Funktioniert mit~Claude Code~Codex CLI~Cursor
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Dokumentation

Was macht api-authorization-and-bola?

API-Autorisierung und BOLA-Testspielbuch. Verwenden, wenn APIs Objekt-IDs, verschachtelte Ressourcen, versteckte beschreibbare Felder oder schwache Autorisierung auf Funktionsebene offenlegen.

Verwendung

yak run api-authorization-and-bola --target https://api.example.com

Unterstützte Plattformen

  • Claude Code
  • Cursor
  • Codex
  • Weitere Yaklang-kompatible KI-Agenten

Konfiguration

VariableBeschreibungStandard
API_BASE_URLZiel-API-Basis-URLErforderlich
AUTH_HEADERAuthentifizierungs-Header-TypBearer
USER_TOKENToken eines legitimen BenutzersErforderlich
ADMIN_TOKENToken eines Administrator-BenutzersOptional

Ablauf

  1. API-Struktur entdecken – Endpunkte, Ressourcen und Autorisierungsschema identifizieren
  2. Vertrauensgrenzen überschreiten – Testfälle für Objekt-ID-Manipulation (z. B. /users/123 → /users/456) generieren
  3. Autorisierte vs. nicht autorisierte Anfragen validieren – Erwartete und tatsächliche HTTP-Statuscodes vergleichen
  4. Bericht erstellen – Schwachstellen, Ausnutzungspfade und Abhilfeempfehlungen dokumentieren

Beispiele

# BOLA-Test auf Benutzer-API
yak run api-authorization-and-bola \
  --target https://api.example.com/v1/users \
  --user-token eyJhbGciOiJIUzI1NiIs... \
  --admin-token eyJhbGciOiJIUzI1NiIs...

Abhilfeempfehlungen

  • Implementieren Sie eine rollenbasierte Zugriffskontrolle (RBAC) für alle Endpunkte
  • Verwenden Sie eindeutige, nicht aufzählbare Objekt-IDs (z. B. UUIDs)
  • Validieren Sie die Autorisierung auf jeder Funktionsebene, nicht nur am API-Gateway
  • Aktivieren Sie Ratenbegrenzung und Protokollierung für verdächtige Zugriffsmuster

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-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.

yaklang/cmdi-command-injection

Command injection playbook. Use when user input may reach shell commands, process execution, converters, import pipelines, or blind out-of-band command sinks.

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