Bluetooth Core up to 5.2 Low Energy Advertisement Scan Response information disclosure

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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3.4$0-$5k0.00

Summaryinfo

A vulnerability was found in Bluetooth Core up to 5.2. It has been classified as problematic. This issue affects some unknown processing of the component Low Energy Advertisement Scan Response Handler. This manipulation causes information disclosure. This vulnerability is registered as CVE-2020-35473. The attack requires access to the local network. No exploit is available.

Detailsinfo

A vulnerability classified as problematic was found in Bluetooth Core up to 5.2. Affected by this vulnerability is an unknown code block of the component Low Energy Advertisement Scan Response Handler. The manipulation with an unknown input leads to a information disclosure vulnerability. The CWE definition for the vulnerability is CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. As an impact it is known to affect confidentiality. The summary by CVE is:

An information leakage vulnerability in the Bluetooth Low Energy advertisement scan response in Bluetooth Core Specifications 4.0 through 5.2, and extended scan response in Bluetooth Core Specifications 5.0 through 5.2, may be used to identify devices using Resolvable Private Addressing (RPA) by their response or non-response to specific scan requests from remote addresses. RPAs that have been associated with a specific remote device may also be used to identify a peer in the same manner by using its reaction to an active scan request. This has also been called an allowlist-based side channel.

The weakness was published 11/08/2022. The advisory is shared at dl.acm.org. This vulnerability is known as CVE-2020-35473 since 12/16/2020. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1592 for this issue.

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

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Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.4
VulDB Meta Temp Score: 3.4

VulDB Base Score: 2.6
VulDB Temp Score: 2.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 4.3
NVD Vector: 🔍

CVSSv2info

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

Exploitinginfo

Class: Information disclosure
CWE: CWE-200 / CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Partially

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

12/16/2020 🔍
11/08/2022 +692 days 🔍
11/08/2022 +0 days 🔍
05/02/2025 +906 days 🔍

Sourcesinfo

Advisory: dl.acm.org
Status: Not defined

CVE: CVE-2020-35473 (🔍)
GCVE (CVE): GCVE-0-2020-35473
GCVE (VulDB): GCVE-100-213085

Entryinfo

Created: 11/08/2022 15:53
Updated: 05/02/2025 02:17
Changes: 11/08/2022 15:53 (37), 12/05/2022 13:04 (12), 05/02/2025 02:17 (15)
Complete: 🔍
Cache ID: 216::103

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