Vulnerability identifier: #VU29613

Vulnerability risk: Low

CVSSv3.1: 5.8 [CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:L/E:P/RL:U/RC:C]

CVE-ID: CVE-2020-15000

CWE-ID: CWE-284

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
YubiKey 5 Series
Hardware solutions / Other hardware appliances

Vendor: Yubico

Description

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

The vulnerability exists due to improper access restrictions within the OpenPGP application. A local attacker can use a Resetting code password to reset the User PIN.

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

Vulnerable software versions

YubiKey 5 Series: 5.2.0 - 5.2.6

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External links
http://www.yubico.com/support/security-advisories/ysa-2020-05

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Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.