CVE-2019-17627 Weak cryptography in n/a
Attackers can unlock Yale smart locks by sniffing Bluetooth traffic and calculating weak authentication keys, bypassing security controls.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2019-17627?
CVE-2019-17627 is a medium-severity vulnerability in n/a, published on 16 Oct 2019. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
The Yale Bluetooth Key application for mobile devices allows unauthorized unlock actions by sniffing Bluetooth Low Energy (BLE) traffic during one authorized unlock action, and then calculating the authentication key via simple computations on the hex digits of a valid authentication request. This affects the Yale ZEN-R lock and unspecified other locks.
Weakness: CWE-287
Which versions are affected by CVE-2019-17627?
It affects 1 product.
Products include Yalehome Yale Bluetooth Key.
How do I fix CVE-2019-17627?
No fix has been published for CVE-2019-17627 yet. Limit exposure of the affected software until one is available.
Is CVE-2019-17627 being exploited?
There is no known exploitation of CVE-2019-17627 in the wild and no public exploit code.
Sources
Also known as GHSA-m65f-5cxc-g5pg.