![]() ![]() Metro, this particular compromise may be moot. Of course, if your RFID-equipped transit system is like my own D.C. Still, despite the obvious security holes, we're not sure how dangerous (or likely) this actually is - who's going to want to make a clone of your bus pass with $10.50 on it? On the other hand, government agencies like the Department of Interior may not want sensitive access cards being duped by intruders. But the company has had similar issues in the past, and there are over three billion of the compromised cards in circulation that may not be upgraded right away. NXP, manufacturer of the vulnerable cards, says there's nothing to worry about since the cards are using 2002 technology and will be phased out as of December 31st. (sufficient for reading / cracking / writing / cloning Mifare Classic Cards) Chinese UID Changeable Mifare U 2 With those cards an attacker is able to create a perfect clone of any Mifare Classic card (including UID) Those Items can be easily bought in or from Thaiwan/China. ![]() #MIFARE CRACKING FOR ANDROID#The hack requires about $3,000 in equipment, takes about seven hours to complete, and leaves no trace. Best Mifare ultralight apps for Android Cracking Mifare Classic cards with Proxmark3 RDV4 Here you can find the changelog of MIFARE Classic Tool since it. The method uses a sophisticated form of eavesdropping that gives access to a card's 112-bit secret key, thereby bypassing the improbable task of cracking the Triple DES encryption directly. Researchers at a German university have detailed a "side channel" exploit which allows attackers to clone or modify the contents of Mifare DESfire MF3ICD40 smart cards. It's nice to see that someone finally implemented the Mifare Classic attacks on the Proxmark, but it's nothing which wasn't possible before with cheap off-the-shelf hardware.Some of the world's most popular RFID smart cards, used by groups like NASA and Chicago Transit, are now vulnerable to intrusion using relatively simple means. The main advantage of a Proxmark is a better antenna / signal processing and a lot more control over the transceiver (it works on a much lower level – for example, it can emulate entire cards, which isn't possible with libnfc/PN532). It's true that it speeds up certain attacks, but in this case, the bottleneck is the Mifare chip, not the reader. This dramatically makes attacks faster, and opens up other attack avenues to successfully break older Mifare implementations – specifically cards without default keys. No Proxmark3 required.Īs the Proxmark3 is specifically built for RFID hacking/research it contains an ARM Processor and Field Programmable Gate Array (FPGA), the attacks are a lot faster as calculations can be performed in hardware as opposed to software. It works perfectly fine with libnfc/mfcuk, by the way. This is the paper for the attack he mentioned: It is designed for users who have at least basic familiarity with the. ![]()
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