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CVE-2020-10134 Detail

Description

Pairing in Bluetooth® Core v5.2 and earlier may permit an unauthenticated attacker to acquire credentials with two pairing devices via adjacent access when the unauthenticated user initiates different pairing methods in each peer device and an end-user erroneously completes both pairing procedures with the MITM using the confirmation number of one peer as the passkey of the other. An adjacent, unauthenticated attacker could be able to initiate any Bluetooth operation on either attacked device exposed by the enabled Bluetooth profiles. This exposure may be limited when the user must authorize certain access explicitly, but so long as a user assumes that it is the intended remote device requesting permissions, device-local protections may be weakened.

Metrics

NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.

CVSS 4.0 Severity and Vector Strings:

NIST: NVD

N/A

NVD assessment not yet provided.

CVSS 3.x Severity and Vector Strings:

CNA: CERT/CC

Base Score: 6.3 MEDIUM

Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N

CVSS 2.0 Severity and Vector Strings:

National Institute of Standards and Technology

NIST: NVD

Base Score: 4.3 MEDIUM

Vector: (AV:A/AC:M/Au:N/C:P/I:P/A:N)

References to Advisories, Solutions, and Tools

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Hyperlink	Resource
https://kb.cert.org/vuls/id/534195/	Third Party Advisory US Government Resource
https://www.bluetooth.com/learn-about-bluetooth/bluetooth-technology/bluetooth-security/method-vulnerability/	Vendor Advisory

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-436	Interpretation Conflict	NIST
CWE-351	Insufficient Type Distinction	CERT/CC

Known Affected Software Configurations Switch to CPE 2.2

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Change History

2 change records found show changes

Initial Analysis by NIST 5/21/2020 2:58:31 PM

Action	Type	Old Value	New Value
Added	CPE Configuration		OR cpe:2.3:a:bluetooth:bluetooth_core:::::br::: versions up to (including) 5.2 cpe:2.3:a:bluetooth:bluetooth_core:::::edr::: versions up to (including) 5.2 cpe:2.3:a:bluetooth:bluetooth_core:::::le::: versions up to (including) 5.2
Added	CVSS V2		NIST (AV:A/AC:M/Au:N/C:P/I:P/A:N)
Added	CVSS V2 Metadata		Victim must voluntarily interact with attack mechanism
Added	CVSS V3.1		NIST AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N
Added	CWE		NIST CWE-436
Changed	Reference Type	https://kb.cert.org/vuls/id/534195/ No Types Assigned	https://kb.cert.org/vuls/id/534195/ Third Party Advisory, US Government Resource
Changed	Reference Type	https://www.bluetooth.com/learn-about-bluetooth/bluetooth-technology/bluetooth-security/method-vulnerability/ No Types Assigned	https://www.bluetooth.com/learn-about-bluetooth/bluetooth-technology/bluetooth-security/method-vulnerability/ Vendor Advisory

Quick Info

CVE Dictionary Entry:
CVE-2020-10134
NVD Published Date:
05/19/2020
NVD Last Modified:
05/21/2020
Source:
CERT/CC

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Information Technology Laboratory

National Vulnerability Database