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CVE-2021-33881

PoC —
CVSS 3.1
4.2 medium
EPSS
<1%p35
Published
()
Modified
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.

Vendors
nxp
Products
mifare ultralight ev1 firmware, mifare ultralight c firmware, mifare ultralight nano firmware, ntag 210 firmware, ntag 212 firmware, ntag 213 firmware, ntag 215 firmware, ntag 216 firmware
Weakness
CWE-863
Vector
CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
NVD CVE.org GitHub PoCs EPSS (0.4%)

In the news

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