Executive Summary

Summary
Title Bluetooth devices supporting BR/EDR are vulnerable to impersonation attacks
Informations
Name VU#647177 First vendor Publication 2020-05-18
Vendor VU-CERT Last vendor Modification 2020-05-26
Severity (Vendor) N/A Revision M

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Overall CVSS Score 5.4
Base Score 5.4 Environmental Score 5.4
impact SubScore 2.5 Temporal Score 5.4
Exploitabality Sub Score 2.8
 
Attack Vector Adjacent Attack Complexity Low
Privileges Required None User Interaction None
Scope Unchanged Confidentiality Impact Low
Integrity Impact Low Availability Impact None
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:A/AC:L/Au:N/C:P/I:P/A:N)
Cvss Base Score 4.8 Attack Range Adjacent network
Cvss Impact Score 4.9 Attack Complexity Low
Cvss Expoit Score 6.5 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

Bluetooth Basic Rate / Enhanced Data Rate (BR/EDR) Core Configurations are used for low-power short-range communications. To establish an encrypted connection, two Bluetooth devices must pair with each other using a link key. It is possible for an unauthenticated, adjacent attacker to impersonate a previously paired/bonded device and successfully authenticate without knowing the link key. This could allow an attacker to gain full access to the paired device by performing a Bluetooth Impersonation Attack (BIAS).

Original Source

Url : https://kb.cert.org/vuls/id/647177

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-287 Improper Authentication

CPE : Common Platform Enumeration

TypeDescriptionCount
Os 1

Alert History

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0
1
2
Date Informations
2020-06-12 21:17:39
  • Multiple Updates
2020-05-26 17:17:27
  • Multiple Updates
2020-05-23 13:15:36
  • First insertion