deserialization-testing

Detect and exploit deserialization vulnerabilities in Java, PHP, and Python applications.

5.6k|899|Updated Nov 8, 2025
One-click install
npx skills add https://github.com/Ed1s0nZ/CyberStrikeAI --skill deserialization-testing
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: deserialization-testing
Source: https://github.com/Ed1s0nZ/CyberStrikeAI/tree/main/skills/deserialization-testing
Command: npx skills add https://github.com/Ed1s0nZ/CyberStrikeAI --skill deserialization-testing

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

This Skill addresses the critical security vulnerability of deserialization flaws, which can lead to remote code execution and data breaches.

Core Features & Use Cases

  • Vulnerability Identification: Detects common serialization formats and potential deserialization points in applications.
  • Exploitation: Provides methods and tools (like ysoserial and PHPGGC) to craft and deploy payloads for Java, PHP, and Python.
  • Bypass Techniques: Offers strategies for overcoming encoding and filter bypasses.
  • Use Case: A security analyst can use this skill to systematically test a web application for deserialization vulnerabilities, identify exploitable gadgets, and demonstrate the impact through a proof-of-concept.

Quick Start

Use the deserialization-testing skill to generate a Java CommonsCollections1 payload for the command 'id'.

Frequently Asked Questions about deserialization-testing

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I detect deserialization vulnerabilities in Java, PHP, and Python applications?

Detecting deserialization vulnerabilities involves identifying common serialization formats and potential deserialization points in Java, PHP, and Python applications. This process systematically evaluates untrusted data inputs to uncover risks of remote code execution and data exfiltration.

What is the best way to generate a Java CommonsCollections1 payload for remote code execution?

The best way to generate a Java CommonsCollections1 payload is by using exploitation tools like ysoserial to craft and deploy malicious serialized data. This method leverages established gadget chains to achieve remote code execution on vulnerable targets.

How can I bypass encoding and filters when exploiting deserialization flaws?

Bypassing encoding and filters when exploiting deserialization flaws requires applying specific bypass techniques against secure configurations. These strategies manipulate how untrusted data is processed to successfully deliver payloads while evading input validation mechanisms.

Does this deserialization testing methodology support PHP and Python exploitation alongside Java?

Yes, this deserialization testing methodology supports PHP and Python exploitation alongside Java. It provides targeted methods and tools like PHPGGC for PHP to craft payloads, identify exploitable gadgets, and demonstrate impact across all three languages.

What protective measures should I implement to mitigate remote code execution from deserialization flaws?

To mitigate remote code execution from deserialization flaws, you should implement protective measures like strict input validation and secure configuration. These defenses ensure that untrusted data cannot trigger malicious gadget chains during the deserialization process.