CVE-2022-38674 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-2022-38674 resides within wireless local area network driver components, specifically affecting the handling of parameter validation during wlan service operations. This issue manifests as a potential missing parameters check that could be exploited to disrupt wireless communication services locally. The flaw exists in the driver layer where input validation mechanisms fail to properly verify essential parameters before processing wireless network operations, creating a pathway for malicious or accidental manipulation of service states.
From a technical perspective, the vulnerability represents a classic case of insufficient input validation that falls under CWE-20, which addresses "Improper Input Validation" in software systems. The missing parameter checks likely occur during the processing of wireless network configuration commands, authentication sequences, or data transmission protocols where the driver fails to validate the completeness or correctness of received parameters. This validation gap could result in the driver attempting to process incomplete or malformed parameter sets, leading to unexpected behavior that ultimately manifests as service disruption.
The operational impact of this vulnerability extends to local denial of service conditions within wlan services, meaning that adversaries with local access or those capable of executing code on the target system could potentially trigger service interruptions. The local nature of the vulnerability suggests that exploitation requires either physical access to the device or the ability to execute code within the system's security context, though the impact remains significant for wireless network availability. This type of vulnerability directly affects the reliability and continuity of wireless network services, potentially disrupting critical communications in environments where wireless connectivity is essential.
From an ATT&CK framework perspective, this vulnerability aligns with techniques involving privilege escalation and denial of service operations, particularly within the T1499 category for network denial of service and potentially T1068 for local privilege escalation. The vulnerability could be leveraged by attackers to establish persistent disruption of wireless services, potentially affecting network availability for legitimate users while remaining隐蔽 within normal network operations. Organizations implementing wireless infrastructure should consider this vulnerability as part of their comprehensive security posture assessment, particularly in environments where wireless services are mission-critical.
Mitigation strategies should focus on implementing robust parameter validation mechanisms within the wlan driver components, ensuring that all input parameters undergo thorough verification before service processing begins. System administrators should prioritize applying vendor-provided patches and updates that address the missing validation checks, while also implementing monitoring solutions to detect anomalous parameter usage patterns that might indicate exploitation attempts. Regular security assessments of wireless driver components and comprehensive testing of parameter validation routines will help prevent exploitation of similar vulnerabilities in the future. The remediation approach should include code reviews focused on input validation practices and the implementation of defensive programming techniques to prevent similar issues from emerging in other network service components.