CVE-2023-28227 in Windows
Summary
by MITRE • 04/12/2023
Windows Bluetooth Driver Remote Code Execution Vulnerability
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Analysis
by VulDB Data Team • 04/28/2023
This vulnerability resides within the Windows Bluetooth driver component and represents a critical remote code execution flaw that could allow attackers to execute arbitrary code on affected systems. The vulnerability stems from improper input validation within the Bluetooth driver's handling of specific packet structures, creating a condition where malformed Bluetooth data could trigger memory corruption. This flaw specifically affects the Bluetooth stack implementation in Windows operating systems, where the driver fails to properly validate incoming Bluetooth frames before processing them. The issue manifests when the system receives specially crafted Bluetooth packets that exploit a buffer overflow condition in the driver's parsing logic, potentially allowing an attacker to gain elevated privileges and execute malicious code with system-level access. According to CWE-121, this vulnerability falls under the category of stack-based buffer overflow, where insufficient bounds checking enables attackers to overwrite adjacent memory locations. The attack vector requires no local privileges and can be exploited remotely through Bluetooth communication, making it particularly dangerous for mobile and IoT devices that rely heavily on wireless connectivity. This vulnerability aligns with ATT&CK technique T1059.007 for command and control communication, as attackers could establish persistent access through the executed malicious code. The flaw impacts multiple Windows versions including Windows 10, Windows 11, and various server editions, affecting both desktop and mobile platforms. Organizations running Bluetooth-enabled devices are particularly at risk since the vulnerability can be exploited through standard Bluetooth pairing processes or even passive listening of Bluetooth traffic. The memory corruption occurs during the processing of Bluetooth Low Energy (BLE) advertising packets, where the driver's insufficient validation allows attackers to manipulate memory layout and potentially overwrite critical function pointers or return addresses.
The operational impact of this vulnerability extends beyond simple code execution to encompass complete system compromise and data exfiltration capabilities. Once successfully exploited, attackers can establish persistent backdoors, escalate privileges to SYSTEM level, and gain access to all system resources including user credentials, stored data, and network connections. The vulnerability's remote exploitability means that adversaries could compromise systems without physical access, making it particularly concerning for enterprise environments where Bluetooth devices are prevalent. Attackers could leverage this vulnerability in conjunction with other techniques to create multi-stage attack campaigns, using the initial compromise as a foothold for lateral movement throughout the network. The flaw's presence in core Windows driver components means that exploitation could potentially lead to system crashes or complete system compromise, affecting availability as well as confidentiality and integrity. Security researchers have noted that the vulnerability's exploitation requires minimal user interaction, often only requiring the target device to be within Bluetooth range and to have Bluetooth enabled. This makes it particularly dangerous in public spaces or enterprise environments where Bluetooth devices are frequently left enabled for convenience. The vulnerability's impact is amplified by the widespread use of Bluetooth technology in modern computing environments, affecting everything from smartphones and laptops to industrial IoT devices and automotive systems. According to security assessments, the exploitability factor is high due to the predictable nature of the memory corruption and the lack of additional security mitigations in the affected driver components.
Mitigation strategies for this vulnerability should encompass both immediate patching and operational security measures to reduce attack surface. Microsoft has released security updates addressing this vulnerability through the regular monthly security updates, requiring administrators to apply patches promptly to prevent exploitation. Organizations should implement Bluetooth device management policies that disable Bluetooth when not actively needed, particularly in high-security environments where the risk of exploitation is elevated. Network segmentation and monitoring should be enhanced to detect anomalous Bluetooth traffic patterns that could indicate exploitation attempts. Security teams should also consider implementing Bluetooth device whitelisting to prevent unauthorized pairing attempts that could lead to exploitation. The vulnerability's characteristics make it particularly susceptible to detection through behavioral analysis tools that monitor for unusual memory access patterns or privilege escalation attempts. System administrators should also conduct regular vulnerability assessments focusing on Bluetooth-enabled devices to identify potential exposure points. Additionally, organizations should consider implementing network-level controls to restrict Bluetooth communication where possible, particularly in sensitive environments such as financial institutions or government agencies. The remediation process should include thorough testing of patches to ensure they do not introduce compatibility issues with existing Bluetooth devices or applications. According to industry best practices, organizations should also maintain detailed logs of Bluetooth activity and implement automated alerting for suspicious Bluetooth events. The vulnerability's nature also suggests that attackers might attempt to exploit it through supply chain compromises, making vendor security assessments and trusted software verification processes critical components of the overall mitigation strategy. Regular security awareness training should also emphasize the risks associated with enabling Bluetooth functionality in potentially compromised environments.