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CVE-2020-26556

nvd nist
Published: May 24, 2021Modified: Nov 21, 2024

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7.5
Vector
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Exploitability: 1.6 / Impact: 5.9
Source: NVD

Description

Mesh Provisioning in the Bluetooth Mesh profile 1.0 and 1.0.1 may permit a nearby device, able to conduct a successful brute-force attack on an insufficiently random AuthValue before the provisioning procedure times out, to complete authentication by leveraging Malleable Commitment.

Affected (3)

Bluetooth
2 products
Bluetooth Core Specification
Mesh Profile
Configuration A
3 vulnerable
Vulnerable SoftwareAffected Versions
Bluetooth Core Specification
From 1.0b to 5.2
Bluetooth
Mesh Profile
Version 1.0.0
Mesh Profile
Version 1.0.1

Related CWEs

CWE-307
Improper Restriction of Excessive Authentication Attempts
The product does not implement sufficient measures to prevent multiple failed authentication attempts within a short time frame, making it more susceptible to brute force attacks.

References (6)

Source: cve@mitre.org
Third Party AdvisoryUS Government Resource
Source: cve@mitre.org
Vendor Advisory
Source: cve@mitre.org
Third Party AdvisoryUS Government Resource
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party AdvisoryUS Government Resource
Source: af854a3a-2127-422b-91ae-364da2661108
Vendor Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party AdvisoryUS Government Resource

Timeline

No history available yet.