CVE-2022-47368 in SC9863A
Summary
by MITRE • 02/12/2023
In wlan driver, there is a possible missing params check. This could lead to local denial of service in wlan services.
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Analysis
by VulDB Data Team • 03/10/2023
The vulnerability identified as CVE-2022-47368 resides within wireless local area network driver components, specifically affecting the wireless lan service functionality. This issue manifests as a potential missing parameters check that could compromise the stability and availability of wireless networking operations. The flaw exists at the driver level where proper input validation mechanisms are insufficiently implemented, creating a pathway for malicious or erroneous parameter inputs to disrupt normal service operations. The vulnerability impacts the wireless lan subsystem and could potentially affect various wireless networking devices that rely on standard wlan driver implementations.
The technical root cause of this vulnerability stems from inadequate parameter validation within the wlan driver code structure. When the driver processes incoming commands or configuration parameters, it fails to properly verify the completeness or correctness of these inputs before proceeding with service operations. This missing validation check creates a condition where malformed or incomplete parameters can be processed without proper error handling, leading to potential service crashes or unresponsive states. The flaw aligns with common software security weaknesses documented in CWE-252, which addresses the issue of missing or insufficient validation of parameters. The vulnerability represents a classic case of insufficient input sanitization that could be exploited to cause unintended behavior in the wireless service stack.
Operationally, this vulnerability presents a significant risk for local denial of service scenarios within wireless networking environments. When exploited, the missing parameter validation can cause wlan services to become unresponsive or crash entirely, disrupting wireless connectivity for devices connected to the affected network. The impact extends beyond simple service interruption as it can affect the overall reliability of wireless infrastructure, potentially causing cascading failures in networks that depend on stable wireless connectivity. Attackers with local access to the system could leverage this vulnerability to systematically disrupt wireless services, making it particularly concerning for enterprise environments where wireless connectivity is critical for operations. The vulnerability's local nature means it requires physical or network access to the target system but can have substantial operational consequences.
Mitigation strategies for CVE-2022-47368 should focus on implementing comprehensive parameter validation within the wlan driver components. System administrators should ensure that all wireless driver updates are applied promptly to address this vulnerability, as vendors typically release patches that correct the missing validation checks. The implementation of proper input validation mechanisms within the driver code should include thorough parameter checking before any service operations are initiated. Additionally, network monitoring solutions should be deployed to detect unusual patterns in wireless service behavior that might indicate exploitation attempts. Organizations should also consider implementing network segmentation and access controls to limit local access to systems running wlan services, reducing the attack surface for potential exploitation. The remediation process should align with security best practices outlined in the NIST Cybersecurity Framework and should be integrated into regular vulnerability management procedures. Regular security assessments of wireless infrastructure components are recommended to identify similar validation gaps that could lead to comparable denial of service conditions.