Improper access control in YubiKey 5 NFC - CVE-2020-15001

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Main Vulnerability Database Vulnerabilities #VU29614

Improper access control in YubiKey 5 NFC - CVE-2020-15001

Published: July 9, 2020 / Updated: July 15, 2020


Vulnerability identifier: #VU29614
CSH Severity: Low
CVSSv4.0: CVSS:4.0/AV:P/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/U:Clear
CVE-ID: CVE-2020-15001
CWE-ID: CWE-284
Exploitation vector: Local access
Exploit availability: No public exploit available
Vulnerable software:
YubiKey 5 NFC
Software vendor:
Yubico

Description

The vulnerability allows a local attacker to gain unauthorized access to otherwise restricted functionality.

The vulnerability exists due to the access code is not checked when updating NFC-specific components of the OTP configurations. An attacker with physical can bypass implemented security restrictions and perform possible changes to the NDEF prefix as well as which slot is presented over NFC without an access code check.

Note: This vulnerability affects the following versions of YubiKey 5 NFC:

  • 5.0.0 to 5.2.6
  • 5.3.0 to 5.3.1


Remediation

Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

External links