CVE-2022-44674 in Windows
Summary
by MITRE • 12/13/2022
Windows Bluetooth Driver Information Disclosure Vulnerability.
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Analysis
by VulDB Data Team • 01/08/2023
The Windows Bluetooth Driver Information Disclosure Vulnerability identified as CVE-2022-44674 represents a critical security flaw within Microsoft Windows operating systems that affects the Bluetooth driver component. This vulnerability resides in the way Windows handles Bluetooth driver information processing and can potentially expose sensitive system data to unauthorized parties. The flaw specifically impacts the Windows Bluetooth stack implementation and affects multiple Windows versions including Windows 10 and Windows 11 across various architectures. The vulnerability stems from improper handling of Bluetooth driver information structures during device enumeration and communication processes, creating potential attack vectors for malicious actors seeking to exploit information disclosure weaknesses in the operating system's Bluetooth subsystem.
The technical implementation of this vulnerability involves a classic information disclosure flaw where the Bluetooth driver fails to properly validate or sanitize input data during driver interaction processes. Attackers can leverage this weakness to extract sensitive information from the system's memory or driver structures, potentially revealing system configuration details, device identifiers, or other confidential data that could aid in further exploitation attempts. The flaw typically manifests when the Bluetooth driver processes malformed or unexpected input from connected Bluetooth devices or during normal Bluetooth device enumeration procedures. This vulnerability falls under the CWE-200 category of "Information Exposure" and specifically aligns with CWE-457 "Use of Uninitialized Variables" and CWE-215 "Information Exposure Through Debug Information" as it can lead to exposure of system internals that should remain protected from unauthorized access.
The operational impact of CVE-2022-44674 extends beyond simple information disclosure as it can serve as a foundational weakness for more sophisticated attacks within the ATT&CK framework's reconnaissance phase. An attacker who successfully exploits this vulnerability could potentially gather intelligence about the target system's Bluetooth configuration, connected devices, and driver versions, which could then be used to plan more targeted attacks. The vulnerability is particularly concerning in enterprise environments where Bluetooth devices are commonly used for authentication, device pairing, or wireless connectivity. The exposure of Bluetooth driver information could enable attackers to identify specific driver versions and their known vulnerabilities, facilitating privilege escalation or lateral movement within the network. Additionally, this information disclosure could aid in crafting more effective social engineering attacks or in bypassing security controls that rely on proper Bluetooth device management.
Mitigation strategies for CVE-2022-44674 should prioritize immediate patch deployment through Microsoft's regular security updates, as the vulnerability has been addressed in subsequent Windows updates. Organizations should implement network segmentation to limit Bluetooth device access and disable Bluetooth functionality when not required for business operations. Security monitoring should include detection of unusual Bluetooth device enumeration patterns and unauthorized Bluetooth device connections that could indicate exploitation attempts. System administrators should also consider implementing endpoint protection solutions that can detect and prevent malicious Bluetooth device interactions. The vulnerability demonstrates the importance of secure coding practices in driver development and highlights the need for thorough security testing of system components that handle external device communications. Organizations should also conduct regular vulnerability assessments focusing on Bluetooth stack implementations and ensure that all Windows systems receive timely security updates to prevent exploitation of such information disclosure vulnerabilities.