Advisory Published
Updated

CVE-2023-24023

First published: Tue Nov 14 2023(Updated: )

<p>Microsoft is aware of the Bluetooth Forward and Future Secrecy Attacks and Defenses (BLUFFS) vulnerability. For more information regarding the vulnerability, please see <a href="https://www.bluetooth.com/learn-about-bluetooth/key-attributes/bluetooth-security/bluffs-vulnerability/">this statement</a> from the Bluetooth SIG.</p> <p>To address the vulnerability, Microsoft has released a software update that enforces the use of BR/EDR Secure Connections defined encryption and authentication algorithms for Bluetooth pairings that have used BR/EDR Secure Connections. If a paired device used BR/EDR Secure Connection at some point, Windows will enforce all subsequent BR/EDR connections to use BR/EDR Secure Connections.</p> <p>As defined by the BR/EDR Secure Connections protocol, the new BR/EDR Secure Connections algorithms will only be used when the local system and the remote paired device both support BR/EDR Secure Connections. Connections between the local system and the remote paired device will remain vulnerable if either the local system or the remote paired device never declare support for BR/EDR Secure Connections during encryption or authentication..</p> <p>Additionally, it is advised to increase the minimum encryption key size as described in <a href="https://support.microsoft.com/en-us/topic/windows-guidance-for-bluetooth-key-length-enforcement-1b80c5b9-ddc1-31c7-1c3e-78e07c4fe877">Windows guidance for Bluetooth key length enforcement</a>. Increasing the minimum encryption key size does not require support for BR/EDR Secure Connections.</p>

Credit: cve@mitre.org

Affected SoftwareAffected VersionHow to fix
Microsoft Windows 11=21H2
Microsoft Windows Server 2019
Microsoft Windows 11=23H2
Microsoft Windows 11=22H2
Microsoft Windows 11=21H2
Microsoft Windows Server 2022, 23H2 Edition
Microsoft Windows 11=23H2
Microsoft Windows 11=22H2
Microsoft Windows Server 2019
Microsoft Windows 10=21H2
Microsoft Windows 10=21H2
Microsoft Windows 10=21H2
Microsoft Windows 10=22H2
Microsoft Windows 10=22H2
Microsoft Windows 10=22H2
Microsoft Windows 10=1809
Microsoft Windows 10=1809
Microsoft Windows 10=1809
Microsoft Windows Server 2022
Microsoft Windows Server 2022
Bluetooth Bluetooth Core Specification>=4.2<=5.4

Never miss a vulnerability like this again

Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.

Frequently Asked Questions

  • What is CVE-2023-24023?

    CVE-2023-24023 is a Bluetooth vulnerability that affects various versions of Microsoft Windows and Windows Server.

  • What is the severity of CVE-2023-24023?

    CVE-2023-24023 has a severity rating of high, with a severity value of 7.

  • Which software is affected by CVE-2023-24023?

    CVE-2023-24023 affects Windows Server 2019, Windows 11 (21H2, 23H2, and 22H2 versions), Windows 10 (21H2 and 22H2 versions), and Windows Server 2022.

  • How can I fix CVE-2023-24023?

    To fix CVE-2023-24023, you should apply the patches provided by Microsoft for the affected operating systems. Please refer to the Microsoft support links provided for each affected software version.

  • Where can I find more information about CVE-2023-24023?

    You can find more information about CVE-2023-24023 on the official Microsoft Security Response Center (MSRC) website at the provided reference link.

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2024 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203