Skill UI

Automates guidance and code for identifying insecure deserialization flaws, following Security Fundamentals best practices to help with authentication, input validation, and secure coding checks when that phrase is mentioned.

A comprehensive security scanner designed to audit AI agent skills before deployment. It analyzes source code (Python, Bash, JS), detects critical vulnerabilities like command injection, network exfiltration, and unsafe deserialization. Furthermore, it scans markdown files for prompt injection attacks, and assesses dependency supply chain risks, providing a clear PASS/WARN/FAIL verdict and remediation guidance.

A comprehensive guide for authorized penetration testers on identifying and exploiting insecure deserialization vulnerabilities across multiple languages (Java, PHP, Python, .NET). Covers techniques for generating payloads using tools like ysoserial and phpggc, and testing various application components such as cookies, HTTP parameters, and message queues to achieve potential Remote Code Execution (RCE).

A comprehensive guide covering advanced exploitation techniques for insecure deserialization vulnerabilities across multiple languages (Java, PHP, Python, .NET, Node.js). It details how to enumerate data sinks (cookies, message queues), fingerprint various serialization formats (e.g., Pickle, Marshal, JSON.NET), and construct complex gadget chains using tools like ysoserial. This is essential for penetration testers reviewing applications that process untrusted serialized input.

This skill provides a comprehensive, structured methodology and checklist for identifying Remote Code Execution (RCE) vulnerabilities across various web applications. It covers advanced attack vectors such as OS command injection, Server-Side Template Injection (SSTI), insecure deserialization, file upload flaws, and XXE. Use this guide during web application penetration testing or bug bounty hunting to systematically discover arbitrary code execution paths.

A comprehensive playbook detailing advanced techniques for exploiting insecure deserialization flaws across Java, PHP, and Python. It covers traffic fingerprinting, identifying specific gadget chains (e.g., Commons Collections, Shiro), and utilizing tools like ysoserial to achieve Remote Code Execution (RCE) and privilege escalation.

A sophisticated payload bypass technique targeting Java applications. It exploits the silent loss of high 8 bits when 16-bit Java characters are cast or written as 8-bit bytes. This allows attackers to bypass WAF/IDS security measures by making the WAF see harmless Unicode, while the backend service processes the original malicious ASCII byte payload. Ideal for blind SQLi, deserialization RCE, and path traversal. This primitive affects major frameworks like Tomcat, Spring, Jackson, and HttpClient.

A comprehensive playbook detailing advanced JNDI injection techniques. Covers the abuse of JNDI lookups via RMI and LDAP, focusing on critical vulnerabilities like Log4Shell (CVE-2021-44228), deserialization gadgets, and post-8u191 bypass methods. Essential for deep-dive security testing and vulnerability research.

A powerful PreToolUse hook designed to act as a safety net during code writing sessions. It automatically scans both file paths and content for 12 common security anti-patterns, including SQL injection, XSS, command injection (Node.js/Python), and unsafe deserialization. It blocks the writing operation and provides immediate warnings, ensuring adherence to secure coding practices when handling sensitive code like authentication or payment logic.

Performs a comprehensive security audit of Model Context Protocol (MCP) implementations, including servers, clients, and tools. This skill reviews code against critical security baselines (MCP-01 to MCP-05), OWASP MCP Top 10, and common Remote Code Execution (RCE) vectors (e.g., command injection, deserialization, SSRF). The output provides a detailed report with file and line references, ensuring compliance and identifying vulnerabilities before release. Use this when auditing network-exposed services or client security posture.

This specialized skill traces the complete lifecycle of an uploaded or imported file through complex backend systems. It maps the sequence from ingress to final consumer, tracking every derived artifact, archive extraction, format conversion, parser invocation, and deserialization step. It is crucial for security analysis, vulnerability research, and understanding how a file reaches a decisive backend effect after initial sandbox assumptions are made.

Techniques for hunting ASP.NET-specific attack surfaces, including ViewState deserialization, Telerik, WCF, and SharePoint. Requires explicit authorization and mandates a confirmation gate before any probing.