Detections
Analytics
CVE-2019-18672
high
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.
References
https://medium.com/shapeshift-stories/shapeshift-security-update-8ec89bb1b4e3
https://medium.com/shapeshift-stories/keepkey-release-notes-v-6f7d2ec78065
https://github.com/keepkey/keepkey-firmware/commit/769714fcb569e7a4faff9530a2d9ac1f9d6e5680