Microsoft Windows up to Server 2019 Bluetooth cryptographic issues

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.9$5k-$25k0.00

A vulnerability, which was classified as critical, was found in Microsoft Windows (Operating System). Affected is some unknown processing of the component Bluetooth. The manipulation with an unknown input leads to a cryptographic issues vulnerability. CWE is classifying the issue as CWE-310. This is going to have an impact on confidentiality, integrity, and availability.

The weakness was presented 08/13/2019 as confirmed security update guide (Website). The advisory is shared for download at portal.msrc.microsoft.com. The public release was coordinated in cooperation with the vendor. This vulnerability is traded as CVE-2019-9506 since 03/01/2019. Access to the local network is required for this attack to succeed. The exploitation doesn't require any form of authentication. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $5k-$25k (estimation calculated on 11/23/2023). The MITRE ATT&CK project declares the attack technique as T1600. The advisory points out:

Executive Summary Microsoft is aware of the Bluetooth BR/EDR (basic rate/enhanced data rate, known as "Bluetooth Classic") key negotiation vulnerability that exists at the hardware specification level of any BR/EDR Bluetooth device. An attacker could potentially be able to negotiate the offered key length down to 1 byte of entropy, from a maximum of 16 bytes.

Applying a patch is able to eliminate this problem. A possible mitigation has been published immediately after the disclosure of the vulnerability.

See 140090 for similar entry.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.0
VulDB Meta Temp Score: 7.9

VulDB Base Score: 7.1
VulDB Temp Score: 6.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

Vendor Base Score (Microsoft): 9.3
Vendor Vector (Microsoft): 🔍

NVD Base Score: 8.1
NVD Vector: 🔍

CNA Base Score: 7.6
CNA Vector (CERT/CC): 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Cryptographic issues
CWE: CWE-310
CAPEC: 🔍
ATT&CK: 🔍

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: Patch
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Timelineinfo

03/01/2019 🔍
08/13/2019 +165 days 🔍
08/13/2019 +0 days 🔍
08/14/2019 +1 days 🔍
11/23/2023 +1562 days 🔍

Sourcesinfo

Vendor: microsoft.com
Product: microsoft.com

Advisory: RHSA-2019:2975
Status: Confirmed
Confirmation: 🔍
Coordinated: 🔍

CVE: CVE-2019-9506 (🔍)
scip Labs: https://www.scip.ch/en/?labs.20161215
See also: 🔍

Entryinfo

Created: 08/14/2019 12:30
Updated: 11/23/2023 16:40
Changes: 08/14/2019 12:30 (70), 07/27/2020 06:37 (2), 11/23/2023 16:33 (5), 11/23/2023 16:40 (12)
Complete: 🔍

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