Vulnerability in Shapeshift Keepkey Firmware
CVE-2019-18672
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.
EPSS: 0.008 (52.3th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.
Affected products
- Shapeshift Keepkey_firmware
- N/a — versions n/a
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cve@mitre.org (Third Party Advisory, x_refsource_MISC)
- cve@mitre.org (Patch, Third Party Advisory, x_refsource_MISC)
- cve@mitre.org (x_refsource_CONFIRM, Third Party Advisory)
- cve@mitre.org (x_refsource_MISC)
Frequently asked questions
- What is CVE-2019-18672?
- CVE-2019-18672 is a high-severity vulnerability in Shapeshift Keepkey Firmware, classified under Improper Validation of Integrity Check Value. CVSS score: 7.5/10. Published 2019-12-06.
- How severe is CVE-2019-18672?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2019-18672 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.