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.
Advisories
Source ID Title
EUVD EUVD EUVD-2021-20554 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.
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2024-08-04T00:05:51.714Z

Reserved: 2021-06-06T00:00:00

Link: CVE-2021-33881

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2021-06-06T16:15:07.407

Modified: 2024-11-21T06:09:42.567

Link: CVE-2021-33881

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.