SB2020091018 - BLURtooth attack in Bluetooth



SB2020091018 - BLURtooth attack in Bluetooth

Published: September 10, 2020

Security Bulletin ID SB2020091018
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Adjecent network
Highest impact Data manipulation

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Man-in-the-Middle (MitM) attack (CVE-ID: CVE-2020-15802)

CWE-ID: CWE-300 - Channel Accessible by Non-Endpoint ('Man-in-the-Middle')

CVSSv4: CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green


The vulnerability allows a remote attacker to perform a Man-in-the-Middle (MitM) attack.

The vulnerability exists due to an error in Cross-Transport Key Derivation (CTKD) component used in Bluetooth BR/EDR and LE. A remote attacker on the local network can perform a Man-in-the-Middle (MitM) attack and manipulate the CTKD component to overwrite other Bluetooth authentication keys on a device.


Remediation

Install update from vendor's website.