Saint BLEEDINGBIT, Who Bled Through Bluetooth

Patron of Bluetooth Low Energy chips, enterprise access points, and features nobody remembered switching on.

Life

In November 2018 Armis disclosed two flaws in Texas Instruments BLE chips built into Wi-Fi access points from Cisco, Meraki and Aruba. One was memory corruption in the Bluetooth stack; the other, on Aruba devices, allowed installing arbitrary firmware on the BLE radio through over-the-air updates. From a chip next to the antenna one reached the access point, and from there the corporate network.

Prayer

O Saint BLEEDINGBIT, who bleeds from one bit too many, keep the radios we don't use switched off. Amen.

How to celebrate

Celebrated by updating access point firmware and turning off Bluetooth where it only tracks the chairs.

A radio left on and forgotten is a door left open and unwatched.