Bluetooth Mesh 1.0.0/1.0.1 Mesh Provisioning AuthValue improper authentication

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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3.7$0-$5k0.00

Summaryinfo

A vulnerability classified as critical was found in Bluetooth Mesh 1.0.0/1.0.1. The affected element is an unknown function of the component Mesh Provisioning. Executing a manipulation of the argument AuthValue can lead to improper authentication. This vulnerability appears as CVE-2020-26556. The attack may be performed from remote. There is no available exploit.

Detailsinfo

A vulnerability was found in Bluetooth Mesh 1.0.0/1.0.1. It has been declared as problematic. This vulnerability affects an unknown function of the component Mesh Provisioning. The manipulation of the argument AuthValue with an unknown input leads to a improper authentication vulnerability. The CWE definition for the vulnerability is CWE-287. When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. As an impact it is known to affect confidentiality.

The weakness was presented 05/25/2021. The advisory is shared for download at kb.cert.org. This vulnerability was named CVE-2020-26556. There are known technical details, but no exploit is available.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.7
VulDB Meta Temp Score: 3.7

VulDB Base Score: 3.7
VulDB Temp Score: 3.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Improper authentication
CWE: CWE-287
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

10/04/2020 🔍
05/25/2021 +233 days 🔍
05/25/2021 +0 days 🔍
05/27/2021 +2 days 🔍

Sourcesinfo

Advisory: kb.cert.org
Status: Confirmed

CVE: CVE-2020-26556 (🔍)
GCVE (CVE): GCVE-0-2020-26556
GCVE (VulDB): GCVE-100-175588

Entryinfo

Created: 05/25/2021 08:42
Updated: 05/27/2021 14:34
Changes: 05/25/2021 08:42 (37), 05/27/2021 14:34 (2)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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