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CVE-2020-10135 Details

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.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:5.4 MEDIUMVector:CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

CNA: [email protected]CVSS-B:5.4 MEDIUMVector:CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00009.html	CVE	Broken LinkMailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00047.html	CVE	Broken LinkMailing ListThird Party Advisory
http://packetstormsecurity.com/files/157922/Bluetooth-Impersonation-Attack-BIAS-Proof-Of-Concept.html	CVE	Third Party AdvisoryVDB Entry
http://seclists.org/fulldisclosure/2020/Jun/5	CVE	ExploitMailing ListThird Party Advisory
https://francozappa.github.io/about-bias/	CVE	Third Party Advisory
https://kb.cert.org/vuls/id/647177/	CVE	Third Party AdvisoryUS Government Resource
https://www.bluetooth.com/learn-about-bluetooth/bluetooth-technology/bluetooth-security/bias-vulnerability/	CVE	Vendor Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00009.html	[email protected]	Broken LinkMailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00047.html	[email protected]	Broken LinkMailing ListThird Party Advisory
http://packetstormsecurity.com/files/157922/Bluetooth-Impersonation-Attack-BIAS-Proof-Of-Concept.html	[email protected]	Third Party AdvisoryVDB Entry
http://seclists.org/fulldisclosure/2020/Jun/5	[email protected]	ExploitMailing ListThird Party Advisory
https://francozappa.github.io/about-bias/	[email protected]	Third Party Advisory
https://kb.cert.org/vuls/id/647177/	[email protected]	Third Party AdvisoryUS Government Resource
https://www.bluetooth.com/learn-about-bluetooth/bluetooth-technology/bluetooth-security/bias-vulnerability/	[email protected]	Vendor Advisory

see all 14 references

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-290	Authentication Bypass by Spoofing	[email protected]
CWE-757	Selection of Less-Secure Algorithm During Negotiation ('Algorithm Downgrade')	[email protected]

Affected Products

Product	Versions
bluetooth bluetooth core	<= 5.2
CPE cpe:2.3:a:bluetooth:bluetooth_core:::::br:::* cpe:2.3:a:bluetooth:bluetooth_core:::::edr:::* Remediation No remediation found in references.
opensuse leap	15.1
CPE cpe:2.3:o:opensuse:leap:15.1:::::::* Remediation No remediation found in references.

Change History

11 change records found show changes

Date	Action	Recorded By
Jun 17, 2026	CVE Modified	[email protected]
Nov 21, 2024	CVE Modified	CVE
May 14, 2024	CVE Modified	[email protected]
Dec 21, 2021	Modified Analysis	[email protected]
Nov 2, 2020	CVE Modified	[email protected]
Aug 21, 2020	CVE Modified	[email protected]
Aug 14, 2020	Modified Analysis	[email protected]
Aug 6, 2020	CVE Modified	[email protected]
Jun 3, 2020	CVE Modified	[email protected]
Jun 3, 2020	CVE Modified	[email protected]
May 21, 2020	Initial Analysis	[email protected]