CVE-2019-18672

Description

Insufficient checks in the finite state machine of the ShapeShift KeepKey hardware wallet before firmware 6.2.2 allow a partial reset of cryptographic secrets to known values via crafted messages. Notably, this breaks the security of U2F for new server registrations and invalidates existing registrations. This vulnerability can be exploited by unauthenticated attackers and the interface is reachable via WebUSB.

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.48%
Third-Party Advisory github.com Third-Party Advisory medium.com Third-Party Advisory medium.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://medium.com/shapeshift-stories/keepkey-release-notes-v-6f7d2ec78065 third party advisory
https://github.com/keepkey/keepkey-firmware/commit/769714fcb569e7a4faff9530a2d9ac1f9d6e5680 third party advisory patch
https://medium.com/shapeshift-stories/shapeshift-security-update-8ec89bb1b4e3 third party advisory
https://blog.inhq.net/posts/keepkey-CVE-2019-18672/

Frequently Asked Questions

What is the severity of CVE-2019-18672?
CVE-2019-18672 has been scored as a high severity vulnerability.
How to fix CVE-2019-18672?
To fix CVE-2019-18672, 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-2019-18672 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2019-18672 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.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.