CVE-2022-47346 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-2022-47346 represents a critical permission bypass flaw within engineer mode services that operates at a fundamental level of system access control. This issue resides in the core service architecture where proper authorization checks have been omitted, creating a pathway for unauthorized local entities to manipulate or disrupt service operations. The vulnerability manifests specifically within the engineering mode subsystem, which typically operates with elevated privileges and sensitive system access. When permission validation mechanisms fail to properly verify user credentials or access levels, it creates an opening that adversaries can exploit to gain unintended control over critical system functions.
The technical implementation of this vulnerability stems from inadequate access control enforcement within the engineering mode service framework. This missing permission check creates a scenario where local users or processes can bypass normal security boundaries that should restrict access to sensitive system components. The flaw operates at the service level where authentication and authorization protocols should validate each request before processing, but instead allows operations to proceed without proper verification. This type of vulnerability is classified under CWE-284 which specifically addresses improper access control and weak permissions, representing a fundamental breakdown in the principle of least privilege that should govern all system access points.
From an operational perspective, this vulnerability creates significant risk for local denial of service conditions within engineering mode services. The impact extends beyond simple service disruption to potentially compromise the integrity of engineering systems that rely on controlled access to prevent unauthorized modifications. Attackers exploiting this weakness could potentially cause system instability, service interruptions, or even create persistent access points for further exploitation. The local nature of the vulnerability means that it requires minimal attack surface exposure, as the attacker only needs local system access rather than network-based entry points. This characteristic makes the vulnerability particularly dangerous in environments where physical access controls are insufficient or where insider threats exist.
The implications of this vulnerability align with ATT&CK technique T1068 which covers local privilege escalation and unauthorized access to system services. When engineering mode services operate with elevated privileges, the absence of proper permission checking creates a vector for attackers to escalate their privileges locally or to disrupt service availability. Organizations utilizing these engineering mode services face potential operational disruptions that could affect maintenance operations, system diagnostics, or specialized engineering functions. The vulnerability essentially undermines the security architecture by allowing unauthorized access to services that should remain restricted to authorized engineering personnel. Mitigation strategies should focus on implementing comprehensive access control measures, regular security audits of service permissions, and ensuring that all system components enforce proper authorization checks. Additionally, organizations should consider implementing monitoring solutions to detect unauthorized access attempts to engineering mode services, as well as conducting regular penetration testing to identify similar permission bypass vulnerabilities across their system infrastructure.