CVE-2021-1684: Windows Bluetooth Security Feature Bypass Vulnerability
First published: Tue Jan 12 2021(Updated: )
<p>Microsoft is aware of the "Impersonation in the Passkey Entry Protocol" vulnerability. For more information regarding the vulnerability, please see this <a href="https://www.bluetooth.com/learn-about-bluetooth/key-attributes/bluetooth-security/passkey-impersonation/">statement</a> from the Bluetooth SIG.</p> <p>To address the vulnerability, Microsoft has released a software update that will fail attempts to pair if the remote device exchanges a public key with the same X coordinate as the locally exchanged public key</p>
Credit: secure@microsoft.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Microsoft Windows Server | =2004 | |
| Microsoft Windows Server 2012 R2 | ||
| Microsoft Windows Server | =20H2 | |
| Microsoft Windows Server | =1909 | |
| Microsoft Windows Server 2012 R2 | ||
| Microsoft Windows RT | ||
| Microsoft Windows 8.1 | ||
| Microsoft Windows 8.1 | ||
| Microsoft Windows Server 2019 | ||
| Microsoft Windows Server 2019 | ||
| Microsoft Windows Server 2016 | ||
| Microsoft Windows Server 2016 | ||
| Windows 10 | =20H2 | |
| Windows 10 | =20H2 | |
| Windows 10 | =1803 | |
| Windows 10 | =1809 | |
| Windows 10 | =1809 | |
| Windows 10 | =1809 | |
| Windows 10 | =1607 | |
| Windows 10 | =1607 | |
| Windows 10 | =1909 | |
| Windows 10 | =1909 | |
| Windows 10 | =1909 | |
| Windows 10 | ||
| Windows 10 | =1803 | |
| Windows 10 | =1803 | |
| Windows 10 | ||
| Windows 10 | =2004 | |
| Windows 10 | =2004 | |
| Windows 10 | =2004 | |
| Windows 10 | ||
| Windows 10 | =20h2 | |
| Windows 10 | =1607 | |
| Windows 10 | =1803 | |
| Windows 10 | =1809 | |
| Windows 10 | =1909 | |
| Windows 10 | =2004 | |
| Microsoft Windows | ||
| Microsoft Windows RT | ||
| Microsoft Windows Server | =r2 | |
| Microsoft Windows Server 2016 | ||
| Microsoft Windows Server 2016 | =20h2 | |
| Microsoft Windows Server 2016 | =1909 | |
| Microsoft Windows Server 2016 | =2004 | |
| Microsoft Windows Server 2019 |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2021-1684?
CVE-2021-1684 is rated as important by Microsoft due to its potential impact on authentication services.
How do I fix CVE-2021-1684?
To fix CVE-2021-1684, apply the relevant patches and updates provided by Microsoft for the affected Windows versions.
Which products are affected by CVE-2021-1684?
CVE-2021-1684 affects various Windows operating systems, including Windows 10, Windows Server, and Windows 8.1.
Can CVE-2021-1684 lead to unauthorized access?
Yes, CVE-2021-1684 can potentially allow attackers to impersonate users and gain unauthorized access to systems.
Is there a known exploit for CVE-2021-1684?
As of now, Microsoft has not reported any active exploits for CVE-2021-1684 in the wild.
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