CVE-2021-33881

MEDIUM

4.2

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.

CVE Details

CVSS v3.1 Score4.2

SeverityMEDIUM

CVSS VectorCVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N

Attack VectorPHYSICAL

ComplexityHIGH

Privileges RequiredNONE

User InteractionNONE

Published6/6/2021

Last Modified11/21/2024

Sourcenvd

Honeypot Sightings0

Affected Products

nxp:mifare_ultralight_cnxp:mifare_ultralight_c_firmwarenxp:mifare_ultralight_ev1nxp:mifare_ultralight_ev1_firmwarenxp:mifare_ultralight_nanonxp:mifare_ultralight_nano_firmwarenxp:ntag_210nxp:ntag_210_firmwarenxp:ntag_212nxp:ntag_212_firmwarenxp:ntag_213nxp:ntag_213_firmwarenxp:ntag_215nxp:ntag_215_firmwarenxp:ntag_216nxp:ntag_216_firmware

Weaknesses (CWE)

CWE-863

References

https://blog.quarkslab.com/rfid-monotonic-counter-anti-tearing-defeated.html(cve@mitre.org)

https://www.nxp.com/docs/en/application-note/AN11340.pdf(cve@mitre.org)

https://www.nxp.com/docs/en/application-note/AN13089.pdf(cve@mitre.org)

https://www.sstic.org/2021/presentation/eeprom_it_will_all_end_in_tears/(cve@mitre.org)

https://blog.quarkslab.com/rfid-monotonic-counter-anti-tearing-defeated.html(af854a3a-2127-422b-91ae-364da2661108)

https://www.nxp.com/docs/en/application-note/AN11340.pdf(af854a3a-2127-422b-91ae-364da2661108)

https://www.nxp.com/docs/en/application-note/AN13089.pdf(af854a3a-2127-422b-91ae-364da2661108)

https://www.sstic.org/2021/presentation/eeprom_it_will_all_end_in_tears/(af854a3a-2127-422b-91ae-364da2661108)

IOC Correlations

No correlations recorded

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