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The data stored in Be-Tech Mifare Classic card is stored in cleartext. An attacker having access to a Be-Tech hotel guest Mifare Classic card can create a master key card that unlocks all the locks in the building. This issue affects all Be-Tech Mifare Classic card systems. To fix the vulnerability, it is necessary to replace the software, encoder, cards, and PCBs in the locks.
Reserved 2025-04-28 | Published 2025-05-26 | Updated 2025-05-27 | Assigner CERT-PLCWE-312 Cleartext Storage of Sensitive Information
Sławomir Jasek, smartlockpicking.com
cert.pl/en/posts/2025/05/CVE-2025-4053/
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