CVE-2022-47355 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-2022-47355 represents a critical security flaw within the log service component of a software system where proper authorization controls have been omitted. This missing permission check creates a scenario where unauthorized local processes can potentially disrupt the normal operation of the logging infrastructure. The vulnerability specifically affects systems where log service functionality is exposed to local users or processes that should not have direct access to modify or interfere with logging operations. From a cybersecurity perspective, this issue falls under the category of insufficient authorization checks which is commonly classified as CWE-285, indicating that the system fails to properly verify that an actor has sufficient privileges to perform a requested operation.
The technical implementation of this vulnerability stems from the absence of proper access control validation within the log service module. When local processes attempt to interact with the logging system, the service fails to authenticate or authorize these requests before executing any operations. This oversight allows malicious or compromised local entities to potentially flood the log service with invalid requests, manipulate log entries, or otherwise disrupt the logging process. The denial of service aspect of this vulnerability manifests when legitimate logging operations become unavailable due to the resource exhaustion or corruption caused by unauthorized access attempts. The flaw essentially creates a pathway for local users to consume system resources or corrupt logging data in ways that prevent the system from properly recording operational events.
The operational impact of CVE-2022-47355 extends beyond simple service disruption as it undermines the fundamental integrity of system monitoring and forensic capabilities. When log services become unavailable or corrupted, organizations lose critical visibility into system operations, security events, and operational performance metrics. This compromised logging infrastructure directly affects incident response procedures, compliance auditing, and security monitoring capabilities. The vulnerability aligns with attack patterns documented in the MITRE ATT&CK framework under the T1562.006 technique for "Impairing Logs and Monitoring" where adversaries seek to disable or corrupt logging mechanisms to avoid detection. Organizations relying on comprehensive logging for security operations may find their defensive posture significantly weakened when this vulnerability is exploited.
Mitigation strategies for CVE-2022-47355 require immediate implementation of proper access control measures within the log service component. System administrators should ensure that all interactions with the logging infrastructure require proper authentication and authorization checks before any operations are executed. This includes implementing role-based access controls that restrict log service access to authorized personnel only, and establishing proper input validation to prevent malformed requests from causing service disruption. The fix should involve adding comprehensive permission verification routines that validate user credentials and privileges before allowing any log manipulation operations. Additionally, organizations should consider implementing logging of all access attempts to the log service to detect potential exploitation attempts and maintain audit trails for forensic analysis. Regular security assessments and code reviews should be conducted to identify similar authorization gaps in other system components to prevent analogous vulnerabilities from being introduced in future development cycles.