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Unscored CVE-2021-33881 EUVD-2021-20554GHSA-ff8p-pfwc-wjf2

On NXP MIFARE Ultralight and NTAG cards, an attacker can interrupt a write operation (aka conduct a "tear off" attack) over RFID to bypass …

Published Jun 6, 2021 · Updated Aug 4, 2024 · Assigned by mitre

Description

On NXP MIFARE Ultralight and NTAG cards, an attacker can interrupt a write operation (aka conduct a "tear off" attack) over RFID to bypass a Monotonic Counter protection mechanism. The impact depends on how the anti tear-off feature is used in specific applications such as public transportation, physical access control, etc.

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