CVE-2022-47342 in SC9863A
Summary
by MITRE • 02/12/2023
In engineermode services, there is a missing permission check. This could lead to local denial of service in engineermode services.
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Analysis
by VulDB Data Team • 03/10/2023
The vulnerability identified as CVE-2022-47342 resides within the engineermode services component where a critical missing permission check has been discovered. This flaw represents a fundamental security weakness that undermines the integrity of the system's access control mechanisms. The absence of proper authorization validation creates a pathway for unauthorized local entities to exploit the service functionality in ways that were not intended by the system designers. Such a vulnerability is particularly concerning in engineering mode services as these components often possess elevated privileges and access to critical system resources that could be leveraged for more severe attacks.
The technical implementation of this vulnerability stems from the failure to validate user permissions before executing sensitive operations within the engineermode services. This missing permission check creates a condition where any local process or user can potentially invoke functions that should be restricted to authorized personnel only. The flaw operates at the authorization layer of the system architecture, where proper access controls should have been enforced but were omitted during development. This type of vulnerability falls under the CWE category of insufficient authorization checks, specifically CWE-285 which addresses improper authorization in security-critical functions. The root cause lies in the lack of proper input validation and access control enforcement mechanisms that should have been implemented to prevent unauthorized access to engineering mode functionalities.
The operational impact of this vulnerability manifests as a potential local denial of service condition within the engineermode services. An attacker with local access could exploit this weakness to disrupt the normal operation of the engineering services, potentially causing system instability or complete service unavailability. The denial of service could be achieved through various means including attempting to access restricted functions, triggering resource exhaustion, or manipulating service states in ways that prevent legitimate operations from proceeding. This vulnerability particularly affects systems where engineering mode services are actively running and accessible, as it provides a vector for local privilege escalation or service disruption that could compromise the overall system availability. The attack surface is limited to local execution but the consequences can be severe in environments where these services are critical to system operation.
Mitigation strategies for CVE-2022-47342 should focus on implementing proper permission validation mechanisms within the engineermode services. The most effective approach involves adding comprehensive access control checks that validate user credentials and authorization levels before allowing execution of sensitive operations. System administrators should ensure that only authorized personnel have access to engineering mode services through proper user account management and privilege separation. The implementation should follow established security best practices including principle of least privilege, mandatory access controls, and regular security audits of service access permissions. Additionally, organizations should consider implementing monitoring and logging of access attempts to engineering mode services to detect potential exploitation attempts. This vulnerability aligns with ATT&CK technique T1068 which covers local privilege escalation and the use of system services for unauthorized access, making it critical to address through proper access control implementation and regular security assessments.