CVE-2020-10135

Advisory lineage Upstream: 0 Downstream: 26
Modified
Published: 19 May 2020, 15:50
Last modified:17 Sept 2024, 02:57

Vulnerability Summary

Overall Risk (default)
medium
36/100
CVSS Score
5.4 MEDIUM
v3.1 (cve.org)
EPSS Score
20.2% HIGH
20% probability -6.72%
KEV
Not listed
Ransomware
No reports
Public exploits
1 found
Dark Web
Not detected

Timeline

19 May 2020, 15:50
Published
Vulnerability first disclosed
17 Sept 2024, 02:57
Last Modified
Vulnerability information updated

Description

Legacy pairing and secure-connections pairing authentication in Bluetooth BR/EDR Core Specification v5.2 and earlier may allow an unauthenticated user to complete authentication without pairing credentials via adjacent access. An unauthenticated, adjacent attacker could impersonate a Bluetooth BR/EDR master or slave to pair with a previously paired remote device to successfully complete the authentication procedure without knowing the link key.

CVSS Metrics

  • v3.1•MEDIUM•Score: 5.4CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
  • v2.0•MEDIUM•Score: 4.8AV:A/AC:L/Au:N/C:P/I:P/A:N

EPSS Trends

Current EPSS score: 20.20%• Percentile: 96%

Techniques & Countermeasures

  • CWE-290•Authentication Bypass by Spoofing

    This attack-focused weakness is caused by incorrectly implemented authentication schemes that are subject to spoofing attacks.

  • CWE-757•Selection of Less-Secure Algorithm During Negotiation ('Algorithm Downgrade')

    A protocol or its implementation supports interaction between multiple actors and allows those actors to negotiate which algorithm should be used as a protection mechanism such as encryption or authentication, but it does not select the strongest algorithm that is available to both parties.

Affected Systems

  • bluetooth•bluetooth_core

    ≤ 5.2

  • bluetooth•br/edr

    5.2

  • opensuse•leap

    15.1

References (7)