CVE-2020-15000

Description

A PIN management problem was discovered on Yubico YubiKey 5 devices 5.2.0 to 5.2.6. OpenPGP has three passwords: Admin PIN, Reset Code, and User PIN. The Reset Code is used to reset the User PIN, but it is disabled by default. A flaw in the implementation of OpenPGP sets the Reset Code to a known value upon initialization. If the retry counter for the Reset Code is set to non-zero without changing the Reset Code, this known value can be used to reset the User PIN. To set the retry counters, the Admin PIN is required.

5.9

CVSS

Severity: Medium

CVSS 3.1 •

CVSS 2.0 •

EPSS 0.23%

Vendor Advisory yubico.com

Affected: n/a n/a

References

Link	Tags
https://www.yubico.com/support/security-advisories/ysa-2020-05/	mitigation vendor advisory

Frequently Asked Questions

What is the severity of CVE-2020-15000?: CVE-2020-15000 has been scored as a medium severity vulnerability.
How to fix CVE-2020-15000?: To fix CVE-2020-15000, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2020-15000 being actively exploited in the wild?: As for now, there are no information to confirm that CVE-2020-15000 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.

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