xml-serialization-security

What problem does it solve?

This Skill addresses the security risks associated with parsing XML and serialized data, including XXE, entity expansion attacks, and unsafe deserialization.

Core Features & Use Cases

• Parser Hardening: Implements configuration best practices across Java, .NET, and Python to disable DTDs, external entities, and network access during XML processing.
• Secure Transformation: Guides secure usage of XSLT transformers by restricting external resource loading.
• Safe Deserialization: Recommends strategies and code snippets to avoid unsafe native deserialization methods like pickle, unserialize, and BinaryFormatter, favoring safer alternatives.
• Use Case: Enhance the security posture of an application that imports external XML feeds or deserializes user input, preventing server-side XML attacks and data exfiltration.

Quick Start

Apply parser configurations that disable external entities and enforce strict validation when processing XML data to prevent XXE attacks.