Second Breakfast: Implicit and Mutation-Based Serialization Vulnerabilities in .NET

This talk describes novel attacks against .NET serialization that bypass current state-of-the-art mitigations.

These attacks include serialization exploits of platforms that don't use well-known .NET serializers, "mutation" attacks that can exploit deserialization even when the serialized data cannot be tampered with, and techniques for bypassing serialization binders. New remote code execution vulnerabilities in MongoDB, LiteDB, ServiceStack.Redis, RavenDB, MartenDB, JSON.Net and the .NET JavaScriptSerializer are all demonstrated....

By: Will Pearce

Full Abstract and Presentation Materials:
https://www.blackhat.com/us-23/briefings/schedule/#second-breakfast--implicit-and-mutation-based-serialization-vulnerabilities-in-net-32128

art attacks bypass bypassing can code code execution current data deserialization don exploit exploits mitigations novel platforms remote code remote code execution serialization state techniques vulnerabilities well-known