30 C
Jaipur
Wednesday, October 21, 2020

A new Vulnerability Let Attackers Overwrite Auth Keys

Must read

Netflix Will Offer Two-Day Unlimited Access to Non-Subscribers in India for Free

Can’t find the free 30-day trial offer on Netflix? Want free access to Netflix to check out the movies and TV shows it has...

Cisco Warns of Attackers Targeting High Severity Router vulnerability

Cisco warns of high severity flaw Cisco Discovery Protocol implementation for Cisco IOS XR Software that allows attackers to execute arbitrary code on the...

Netflix StreamFest: Free Netflix And Chill For A Weekend

After killing its 30-day free trial, Netflix is bringing StreamFest to give users a free weekend of its streaming services. First reported by Protocol,...

Security researchers from at the École Polytechnique Fédérale de Lausanne (EPFL) and Purdue University discovered vulnerabilities related to Cross-Transport Key Derivation (CTKD) with Bluetooth BR/EDR and LE in Bluetooth Specifications 4.0 through 5.0.

Bluetooth BR/EDR and LE that using Cross-Transport Key Derivation (CTKD) are vulnerable to key overwrite which allows attackers to gain additional access to profiles by reducing the encryption strength.

BLURtooth Attack

According to the specifications of 4.2 and 5.0 Bluetooth versions, CTKD is used for pairing by devices that support both Low Energy (BLE) and Basic Rate/Enhanced Data Rate (BR/EDR) transport methods.

By using the CTKD it let devices pair once by using the transport method while generating both the BR/EDR and LE Long Term Keys (LTK) without needing to pair a second time.

To launch a successful attack the device should reside within the wireless range of a vulnerable Bluetooth device supporting both BR/EDR and LE transports that support CTKD between the transports and permits pairing on either the BR/EDR or LE transport either with no authentication or no user-controlled access.

The vulnerability can be tracked as CVE-2020-15802, it is referred to as BLURtooth and the group of attacks is being referred to as the BLUR attacks.

Bluetooth SIG recommends additional conformance tests for authentication keys, disallow overwrite of the LTK, or LK.

The Bluetooth SIG further recommends that devices restrict when they are pairable on either transport to times when user interaction places the device into a pairable mode or when the device has no bonds or existing connections to a paired device.

Bluetooth users are recommended to have installed the latest updates from the device and operating system manufacturers.

You can follow us on LinkedinTwitterFacebook for daily Cybersecurity updates

Also Read:

Google Maps XSS Bug – Bounty Doubled After the Original Fix had Failed

New Jenkins Vulnerability Let Hackers Steal Sensitive Information By Obtain HTTP Response Headers

Source link

- Advertisement -

More articles

LEAVE A REPLY

Please enter your comment!
Please enter your name here

Latest article

Netflix Will Offer Two-Day Unlimited Access to Non-Subscribers in India for Free

Can’t find the free 30-day trial offer on Netflix? Want free access to Netflix to check out the movies and TV shows it has...

Cisco Warns of Attackers Targeting High Severity Router vulnerability

Cisco warns of high severity flaw Cisco Discovery Protocol implementation for Cisco IOS XR Software that allows attackers to execute arbitrary code on the...

Netflix StreamFest: Free Netflix And Chill For A Weekend

After killing its 30-day free trial, Netflix is bringing StreamFest to give users a free weekend of its streaming services. First reported by Protocol,...

DJI Pocket 2 is a Tiny Vlogging Camera with a Modular Design, Improved Audio

Renowned drone maker, DJI, has upgraded its tiny gimbal camera for bloggers today. The company has launched the DJI Pocket 2, a successor to...