Akademie — magic cards

This week's pentestip introduces the Multi RFID Keyfob: the "Emergency Chameleon" device. The Multi-RFID keyfob is an ingenious low-tech, low-cost solution:  It contains six independant RFID tags: 3x Low Frequency T5577 ("Universal" LF Tags) and 3x MIFARE Classic® Compatible 1K UID Modifiable DirectWrite / Gen2 Tags (Android Compatible). We introduce why this tool is a key-chain must-have for pentesters. Check back every Friday for a new video. If you've got a tip that you'd like to see featured, just send us a tweet.

Navigating the world of "Magic" RFID Cards can be difficult. Different suppliers have different badges with different abilities, and each version may have multiple generations. At Lab401, we work closely with our suppliers to ensure we have the latest and most stable versions of "Magic UID Tags". But before we can jump into the technical details - first a history lesson. In the beginning there was the MIFARE CLASSIC® 1K card.Compared to the 125KHz tags at the time, which simply burped out a string of data, the MIFARE CLASSIC® 1K was an advanced card.  Each individual card had an individual Unique ID. These UIDs blocks were managed between...