VulnerabilityModified

CVE-2023-33221

This allows a heap based buffer overflow that could lead to a potential Remote Code Execution on the targeted device.

CRITICAL 9.8EPSS 1.03%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (1.03%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

When reading DesFire keys, the function that reads the card isn't properly checking the boundaries when copying internally the data received. This allows a heap based buffer overflow that could lead to a potential Remote Code Execution on the targeted device. This is especially problematic if you use Default DESFire key.

CVSS 3.1: 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS: 1.03% probability · 62th percentile
CISA KEV: Not listed
Weakness: CWE-122, CWE-787
Affected: idemia/sigma lite firmware · idemia/sigma lite\+ firmware · idemia/sigma extreme firmware · idemia/sigma wide firmware · idemia/morphowave compact firmware · idemia/morphowave xp firmware · idemia/visionpass firmware · idemia/morphowave sp firmware
Source: a87f365f-9d39-4848-9b3a-58c7cae69cab

References

https://www.idemia.com/wp-content/uploads/2023/11/Security-Advisory-SA-2023-05-2.pdfVendor Advisory
https://www.idemia.com/wp-content/uploads/2023/11/Security-Advisory-SA-2023-05-2.pdfVendor Advisory

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.