CVE-2022-47359 in SC9863A
Summary
by MITRE • 02/12/2023
In log service, there is a missing permission check. This could lead to local denial of service in log service.
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Analysis
by VulDB Data Team • 03/10/2023
The vulnerability identified as CVE-2022-47359 represents a critical security flaw within log service implementations where a fundamental permission check has been omitted. This missing authorization mechanism creates a pathway for unauthorized local entities to disrupt system operations through denial of service attacks. The vulnerability specifically affects systems that rely on log service components for monitoring and operational logging, where proper access controls should prevent arbitrary processes from interfering with logging functionality.
From a technical perspective, the flaw manifests as a failure in the authorization framework that should validate user privileges before granting access to log service operations. When permission checks are absent, malicious or compromised local processes can manipulate log service components to consume excessive resources, corrupt log data, or terminate logging processes entirely. This represents a classic case of insufficient authorization controls that violates fundamental security principles and can be categorized under CWE-284 which addresses improper access control mechanisms. The vulnerability essentially allows for privilege escalation or unauthorized manipulation of system logging capabilities that are critical for operational integrity and security monitoring.
The operational impact of this vulnerability extends beyond simple service disruption to encompass broader system reliability and security posture concerns. Local denial of service attacks can compromise the availability of critical log data that security teams depend upon for incident response, forensic analysis, and compliance monitoring. When log services become unavailable or corrupted, organizations lose visibility into system activities, making it difficult to detect security breaches, track user activities, or maintain audit trails. This vulnerability directly impacts the CIA triad by compromising availability and potentially integrity of system logging data, and can be mapped to ATT&CK technique T1562.006 for "Impairing Logs and Monitoring" which involves disrupting logging capabilities to avoid detection.
Mitigation strategies should focus on implementing robust permission validation mechanisms within log service components, ensuring that all access requests are properly authenticated and authorized before execution. Organizations should enforce mandatory access controls that prevent unauthorized local processes from manipulating logging services, implement proper privilege separation, and establish monitoring for anomalous log service behavior. Additionally, regular security assessments should validate that authorization controls are properly implemented and that no unauthorized access paths exist within logging infrastructure. The remediation approach must include comprehensive testing of access control mechanisms and implementation of defense-in-depth strategies that protect logging services from both internal and external threats while maintaining system availability and data integrity.