Executive Summary

Title Bluetooth devices supporting LE and specific BR/EDR implementations are vulnerable to method confusion attacks
Name VU#534195 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:R/S:U/C:H/I:L/A:N
Overall CVSS Score 6.3
Base Score 6.3 Environmental Score 6.3
impact SubScore 4.2 Temporal Score 6.3
Exploitabality Sub Score 2.1
Attack Vector Adjacent Attack Complexity Low
Privileges Required None User Interaction Required
Scope Unchanged Confidentiality Impact High
Integrity Impact Low Availability Impact None
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Security-Database Scoring CVSS v2

Cvss vector : (AV:A/AC:M/Au:N/C:P/I:P/A:N)
Cvss Base Score 4.3 Attack Range Adjacent network
Cvss Impact Score 4.9 Attack Complexity Medium
Cvss Expoit Score 5.5 Authentication None Required
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Bluetooth Low Energy (BLE) and 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 an agreed upon Association Model. It is possible for an unauthenticated, adjacent attacker to man-in-the-middle (MITM) attack the pairing process and force each victim device into a different Association Model, possibly granting the attacker the ability to initiate any Bluetooth operation on either attacked device.

Original Source

Url : https://kb.cert.org/vuls/id/534195

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-436 Interpretation Conflict

Alert History

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Date Informations
2020-06-12 21:17:38
  • Multiple Updates
2020-05-26 17:17:26
  • Multiple Updates
2020-05-23 13:15:35
  • First insertion