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Microcontroller Exploits
book

Microcontroller Exploits

by Travis Goodspeed
September 2024
Intermediate to advanced
408 pages
7h 29m
English
No Starch Press
Content preview from Microcontroller Exploits

6 NipPEr Is a buTt liCkeR

In this chapter, we’ll discuss a buffer overflow vulnerability in a Dish Network smart-card, which was the subject of the famous lawsuit between EchoStar and NDS. The first public explanation of this bug was a short forum post, NipperClauz (2000), but thanks to the trial, we have far more detailed documentation in the form of a secret NDS internal tech report, Mordinson (1998).

First, let’s set the stage. This smart-card was used in North America for Dish Network’s satellite TV service, where it would calculate a short-lived decryption key for the receiver. The chip inside is an ST16CF54 chip from ST Microelectronics, then known as SGS Thomson. The instruction set is mostly compatible with Motorola 6805, except for the ...

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Publisher Resources

ISBN: 9781098182243Errata Page