CVE-2020-10135
Bluetooth devices supporting BR/EDR v5.2 and earlier are vulnerable to impersonation attacks
- State
- Published
- Severity
- 5.4 Medium
- Published
- May 19, 2020
- Updated
- Sep 17, 2024
- Reserved
- Mar 5, 2020
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 5.4 Medium | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N | certcc |
Weaknesses
- CWE-757 Selection of Less-Secure Algorithm During Negotiation ('Algorithm Downgrade')
Affected Products
| Product | Versions |
|---|---|
BR/EDRBluetooth |
|
References
- VU#647177third-party-advisory
- 20200602 BIAS (Bluetooth Impersonation Attack) CVE 2020-10135 reproductionmailing-list
- openSUSE-SU-2020:1153vendor-advisory
- openSUSE-SU-2020:1236vendor-advisory
- https://francozappa.github.io/about-bias/
- https://www.bluetooth.com/learn-about-bluetooth/bluetooth-technology/bluetooth-security/bias-vulnerability/
- http://packetstormsecurity.com/files/157922/Bluetooth-Impersonation-Attack-BIAS-Proof-Of-Concept.html
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