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CVE-2019-18672

7.5 · HIGH

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.

Published Dec 6, 2019CWE-354EPSS 0.78%

Overview

CVE-2019-18672 is a high-severity vulnerability. It was published on December 6, 2019 and has a CVSS 3.1 base score of 7.5 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refblog.inhq.net/posts/keepkey-CVE-2019-18672/GitHubgithub.com/keepkey/keepkey-firmware/commit/769714fcb569e7a4faff9530a2d9ac1f9d6e5680Refmedium.com/shapeshift-stories/keepkey-release-notes-v-6f7d2ec78065Refmedium.com/shapeshift-stories/shapeshift-security-update-8ec89bb1b4e3Refblog.inhq.net/posts/keepkey-CVE-2019-18672/GitHubgithub.com/keepkey/keepkey-firmware/commit/769714fcb569e7a4faff9530a2d9ac1f9d6e5680Refmedium.com/shapeshift-stories/keepkey-release-notes-v-6f7d2ec78065Refmedium.com/shapeshift-stories/shapeshift-security-update-8ec89bb1b4e3

How CyberStrike helps

Frequently asked questions

What is CVE-2019-18672?

CVE-2019-18672 is a high-severity vulnerability. It was published on December 6, 2019 and has a CVSS 3.1 base score of 7.5 (HIGH).

How severe is CVE-2019-18672?

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2019-18672?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2019-18672?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2019-18672 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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