Tal JustTalDevelops

Exploiting the Blob Cache in Minecraft: Bedrock Edition

...and why it matters.

Preface

You might have seen my HiveCorruptor plugin on Poggit. To be clear, I don't have a vendetta against The Hive or anything like that, the plugin was more so a comedic demonstration of how the blob cache can be exploited to crash clients. The next thing you're probably thinking is "how the hell does this work?" - and this is what this article will go over.

Introduction

Keybase proof

I hereby claim:

I am justtaldevelops on github.
I am justtal (https://keybase.io/justtal) on keybase.
I have a public key ASApn7N5IR2O88kCvhURStuwPzRu0KYZYUMSWuujkdFiZQo

To claim this, I am signing this object:

	package main

	import (
	"fmt"
	"github.com/df-mc/dragonfly/server/block"
	"github.com/df-mc/dragonfly/server/block/cube"
	"github.com/df-mc/dragonfly/server/world"
	"github.com/df-mc/dragonfly/server/world/chunk"
	"github.com/df-mc/dragonfly/server/world/mcdb"
	"sync"