These are fairly hard to come by, but if you monitor Ebay or keep a watchful eye on Google, you could get lucky. The only caveat is that it must be Revision A. The most commonly exploited reader is the HID RW300 Rev A, but you can use an RW300, RW400, RWK400, R30, R40, or RK40.
DO REVERSE ENGINEER IN UFED READER FULL
The two halves can be stitched together to create a full firmware image which can be used to re-flash the two sacrificial readers. By modifying the firmwares, the readers each dump one half of the complete firmware image. The Heart of Darkness approach entails leveraging those debug pins to modify the on-board firmware of two vulnerable readers. This method takes advantage of a vulnerability in a specific line of readers released by HID which expose 6 debug pins on the rear of the reader. The original approach for gaining the HID master key was disclosed in a paper entitled Heart of Darkness - exploring the unchartedīackwaters of HID iCLASS™ security. This effectively means that an attacker with possession of the authentication key is capable of cloning HID iClass cards and changing configuration settings on the physical reader itself. The authentication key is highly sensitive as it allows one to read decrypted card content and also overwrite card content. The system boasts a higher level of security through encryption and mutual authentication.īut neither of these defenses mean much when the master authentication key used by every standard iClass reader is retrievable by a moderately technical individual. The HID iClass line of proximity cards and readers is a widely deployed RFID system that's been poked full of holes by security researchers.