CVE-2022-47348 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-2022-47348 represents a critical permission enforcement flaw within the engineermode services component of a software system. This issue manifests as a missing permission check that allows unauthorized local processes to potentially disrupt the normal operation of engineering mode services. The vulnerability exists within the access control mechanisms that should normally verify whether a requesting process has appropriate authorization levels before granting access to sensitive system functions. When this permission verification fails, it creates an avenue for local attackers to exploit the system and potentially cause denial of service conditions that could impact the availability of engineering mode services. The flaw specifically affects the engineering mode services which are typically designed to provide advanced diagnostic and configuration capabilities for system maintenance and development purposes.
The technical implementation of this vulnerability stems from inadequate access control validation within the engineermode services framework. The system fails to properly authenticate and authorize local processes attempting to interact with engineering mode functionality, allowing any local user or process to potentially invoke service operations that should be restricted to privileged administrators or authorized engineering personnel. This missing permission check creates a scenario where unauthorized access can lead to service disruption through various means including process termination, resource exhaustion, or modification of critical service parameters. The flaw operates at the system level where proper privilege separation should exist between standard user processes and engineering mode services, but this boundary has been compromised due to insufficient authorization verification mechanisms. From a cybersecurity perspective, this vulnerability aligns with CWE-284 which specifically addresses improper access control issues, and represents a classic example of insufficient privilege checking in service-oriented architectures.
The operational impact of CVE-2022-47348 extends beyond simple service disruption to potentially compromise the integrity and availability of engineering mode functionality that system administrators rely upon for critical maintenance and diagnostic operations. Local denial of service conditions can result in complete unavailability of engineering services, forcing system administrators to restart services manually or potentially causing system instability during critical maintenance windows. The vulnerability may also enable attackers to perform unauthorized modifications to system configurations or diagnostic parameters, potentially masking other security issues or creating backdoors within the system. In environments where engineering mode services are frequently accessed for troubleshooting or system updates, this vulnerability could significantly impact operational efficiency and create potential security gaps that malicious actors might exploit to escalate privileges or gain deeper system access. The local nature of the vulnerability means that attackers do not require network connectivity or remote access capabilities, making it particularly concerning for systems where local privilege escalation is a potential concern.
Mitigation strategies for CVE-2022-47348 should focus on implementing robust access control measures and privilege verification mechanisms within the engineermode services framework. System administrators should immediately apply available patches or updates that address the missing permission checks and ensure that proper authentication mechanisms are enforced before granting access to engineering mode services. The implementation should include mandatory privilege verification for all service operations and establish clear access control policies that define which users or processes can interact with engineering mode functionality. Organizations should also consider implementing monitoring solutions that can detect unauthorized access attempts to engineering mode services and alert security personnel to potential exploitation attempts. Additionally, regular security audits should be conducted to verify that proper access controls are in place and functioning correctly, particularly in environments where engineering mode services are actively used. The remediation process should align with cybersecurity best practices and may involve configuration changes that enforce proper privilege separation between standard user processes and engineering mode services, ensuring that only authorized personnel can access these critical system functions.