Re: RFID Tags

["lsi" <stuart () cyberdelix net>]

I read about some theoretical attacks on RFID:  

- unauthorised usage: Black Hat walks onto train with rogue ID 
sniffer, gets IDs of all tags in the carriage - this info might be 
used to compute the relative value of each commuter's clothes and 
belongings, and their origins.  If RFIDs go into drivers licenses, 
passports etc, then the presence of those documents will be revealed 
without a search.  If the RFIDs go into credit cards, Black Hat will 
know how many, and which ones, you have.  And if RFIDs go into cash, 
then Black Hat will know how much you're carrying.  

- replay attack: sniff a tag's ID, then later, play it back to the 
detector and impersonate that tag  

"Security professionals need to realize that RFID tags are dumb 
devices. They listen, and they respond. Currently, they don't care 
who sends the signal. Anything your companies' transceiver can 
detect, the bad guy's transceiver can detect. So don't be lulled into 
a false sense of security." -- 
http://www.securityfocus.com/columnists/169  

Stuart
On 10 May 2004 at 19:04, Timothy Marshall wrote:

Send reply to:          <tim () labmonkey co uk>
From:                   "Timothy Marshall" <tim () labmonkey me uk>
To:                     <pen-test () securityfocus com>
Subject:                RFID Tags
Date sent:              Mon, 10 May 2004 19:04:35 +0800
Organization:           Labmonkey.co.uk                                              

> Hi,
>
> Does anyone have information / experience on how secure these tags are? Can
> the data they store be changed in anyway? Can they be copied / faked? If
> they are changed can the original information still be read?
>
> Cheers
>
> Tim
>
>
>
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---
Stuart Udall
stuart at () cyberdelix dot net - http://www.cyberdelix.net/

--- 
 * Origin: lsi: revolution through evolution (192.168.0.2)


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to facilitate one-on-one interaction with one of our expert instructors.
Attend a course taught by an expert instructor with years of in-the-field
pen testing experience in our state of the art hacking lab. Master the skills
of an Ethical Hacker to better assess the security of your organization.
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