CVE-2022-47466 in SC9863A
Summary
by MITRE • 04/11/2023
In telecom service, there is a missing permission check. This could lead to local denial of service in telecom service.
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Analysis
by VulDB Data Team • 04/28/2023
The vulnerability identified as CVE-2022-47466 represents a critical security flaw within telecom service implementations where a missing permission check creates an avenue for unauthorized local system disruption. This issue resides in the core telecommunications infrastructure components that manage service operations and user access controls. The absence of proper authorization validation allows malicious actors or compromised processes to execute operations that should be restricted to authorized entities only. The vulnerability specifically impacts the telecom service layer where permission validation mechanisms have been omitted or inadequately implemented, creating a pathway for local denial of service attacks.
The technical root cause of this vulnerability stems from insufficient access control enforcement within the telecom service framework. When permission checks are missing or bypassed, the system fails to verify whether incoming requests originate from legitimate authorized processes or entities. This weakness enables attackers to manipulate service operations through local system access, potentially causing service interruptions or complete system unavailability. The flaw operates at the application level where proper authentication and authorization protocols should be enforced before granting operational privileges. This type of vulnerability aligns with CWE-284 which specifically addresses improper access control issues, and can be categorized under ATT&CK technique T1499 which covers network denial of service attacks.
The operational impact of CVE-2022-47466 extends beyond simple service disruption to encompass potential widespread network instability and service degradation. Local denial of service conditions can affect critical telecommunications infrastructure, potentially impacting voice services, data transmission, and messaging capabilities for multiple users simultaneously. The vulnerability's local nature means that attackers need only access to the local system or network segment to exploit the flaw, making it particularly dangerous in environments where physical or logical access controls may be insufficient. Service providers could experience cascading failures as the compromised telecom service components affect interconnected systems and dependent services.
Mitigation strategies for this vulnerability require immediate implementation of comprehensive access control measures and permission validation protocols. Organizations should enforce strict authorization checks at all service entry points and ensure that proper privilege separation exists between different operational components. The remediation process involves implementing robust authentication mechanisms and establishing clear access control policies that prevent unauthorized operations. Security teams should conduct thorough access control reviews and implement mandatory permission checks for all telecom service operations. Additionally, regular security assessments and penetration testing should be performed to identify similar missing permission checks throughout the telecommunications infrastructure. Network segmentation and monitoring solutions should be deployed to detect anomalous access patterns that may indicate exploitation attempts. The implementation of these controls aligns with security frameworks such as NIST SP 800-53 and ISO 27001 standards for access control and system security management.