CVE-2018-20958 Information disclosure in n/a

Medium 6.5 Published Updated

Attackers can derive unlock keys from broadcasted MAC addresses to bypass authentication on Tapplock smart locks.

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-2018-20958?

CVE-2018-20958 is a medium-severity vulnerability in n/a, published on 7 Aug 2019. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

The Bluetooth Low Energy (BLE) subsystem on Tapplock devices before 2018-06-12 relies on Key1 and SerialNo for unlock operations; however, these are derived from the MAC address, which is broadcasted by the device.

Weakness: CWE-200

Which versions are affected by CVE-2018-20958?

It affects 1 product.

Products include Tapplock Tapplock Firmware.

How do I fix CVE-2018-20958?

No fix has been published for CVE-2018-20958 yet. Limit exposure of the affected software until one is available.

Is CVE-2018-20958 being exploited?

There is no known exploitation of CVE-2018-20958 in the wild and no public exploit code.

Sources

Also known as GHSA-wf9p-rrmg-53wp.

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