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defensive-jwt

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Detect JWT attacks and bolster identity security.

Data & Analytics#authentication#jwt#incident-response#kql#sigma#token-detection#identity-security
Authorriparino
Version1.0.0
Installs0

System Documentation

What problem does it solve?

JWTs are a common attack surface; misconfigurations and weak validation enable token forgery, header injection, and token leakage. This skill helps security teams detect and triage JWT abuse in cloud and application environments.

Core Features & Use Cases

  • Detection of alg:none tokens, JWK/JKU header injection, and algorithm confusion.
  • Sigma rules and KQL queries for Entra ID SigninLogs and AuditLogs to support SOC triage.
  • Hardening guidance for strict token validation and JWKS pinning across identity platforms.

Quick Start

Configure detectors to flag unsigned JWTs, JWK/JKU injection, and algorithm confusion, then apply Sigma and KQL patterns to your logs.

Dependency Matrix

Required Modules

None required

Components

Standard package

💻 Claude Code Installation

Recommended: Let Claude install automatically. Simply copy and paste the text below to Claude Code.

Please help me install this Skill:
Name: defensive-jwt
Download link: https://github.com/riparino/Claude-Cyber/archive/main.zip#defensive-jwt

Please download this .zip file, extract it, and install it in the .claude/skills/ directory.
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