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Bad Memories

Type
Paper
Tags
cryptography
Authors
Baptiste Gourdin, Elie Bursztein, Gustav Rydstedt
Event
Black Hat USA 2010
Indexed on
Mar 27, 2013
URL
https://media.blackhat.com/bh-us-10/whitepapers/Bursztein_Gourdin_Rydstedt/BlackHat-USA-2010-Bursztein-Bad-Memories-wp.pdf
File name
BlackHat-USA-2010-Bursztein-Bad-Memories-wp.pdf
File size
2.6 MB
MD5
513ffd4a265cbb9bcc33550b54fc486a
SHA1
7e7ecfd6a33ca78305eff0c9063e9f9e06177b9f

No matter which kind of cryptography you are using to defend your network, , sooner or later to make it work you will have to store somewhere a password, a key or a certificate. If the attacker is able to tamper with its storage mechanism then even the strongest encryption mechanism became irrelevant. In this talk we will show how to attack storage mechanisms to tampers with SSL session and break into Wifi network that use WPA encryption. For SSL we will show how to exploit warning inconsistency and caching mechanisms to trick the user into accepting a bad cert and gets his credential stolen. For Wifi network we will demonstrate how to use clickjacking, CSRF, and XSS to steal from routers the two piece of information that an attacker needs to geo-localize and break into it, namely the WPA key and the mac address. Finally we will discuss how to discuss what frame busting defense are used by the Alexa top 100 website and how we were able to break them using standard and not so standard tricks. This is a join work with Dan Boneh and Collin Jackson.

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