CVE-2022-47463 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-2022-47463 represents a critical security flaw within telecom service implementations where a missing permission check creates an avenue for unauthorized local system access. This weakness specifically affects telecom service components that handle sensitive network operations and could potentially allow malicious actors or compromised processes to execute unauthorized actions within the telecommunications infrastructure. The vulnerability resides in the fundamental access control mechanisms that should validate user privileges before granting system-level operations. According to CWE-284, this corresponds to improper access control where insufficient permission validation allows unauthorized entities to perform privileged operations. The impact of this vulnerability extends beyond simple privilege escalation as it directly threatens the integrity and availability of telecom services. When local denial of service occurs, it can disrupt critical network functions including call routing, data transmission, and service provisioning, potentially affecting thousands of users simultaneously. The operational implications are severe as telecom providers rely on uninterrupted service delivery for business continuity and regulatory compliance.
The technical implementation of this vulnerability demonstrates a failure in the authorization framework where specific service components lack proper validation of caller permissions before executing sensitive operations. This missing permission check typically occurs within system service interfaces where processes or applications attempt to perform privileged actions without verifying their authorization level. Attackers exploiting this vulnerability could potentially manipulate telecom service operations to cause service disruption, data corruption, or unauthorized access to network resources. The vulnerability's exploitability is heightened by the local nature of the attack vector, meaning that an attacker with local system access or a compromised process can leverage this weakness to escalate privileges or disrupt service operations. The flaw essentially creates a backdoor within the telecom service architecture that bypasses normal security controls and validation mechanisms. This type of vulnerability aligns with ATT&CK technique T1068 which involves local privilege escalation through improper access control mechanisms. The attack surface is particularly concerning given that telecom services often run with elevated privileges and handle critical infrastructure components.
The operational impact of CVE-2022-47463 extends to both immediate service disruption and long-term security implications for telecom infrastructure. Local denial of service attacks can result in cascading failures throughout the network, affecting call quality, data transmission, and service availability for end users. Service providers may experience increased downtime, customer dissatisfaction, and potential regulatory penalties for failing to maintain secure network operations. The vulnerability's presence also indicates broader security architecture weaknesses that could enable more sophisticated attacks including data exfiltration, service manipulation, or network reconnaissance. Organizations may face challenges in maintaining service level agreements and regulatory compliance requirements. Recovery from such attacks typically requires system restoration, security patching, and potential service disruption during remediation. The financial impact includes direct costs for incident response, system recovery, and potential compensation for affected customers. Security teams must implement comprehensive monitoring and detection capabilities to identify unauthorized access attempts and prevent exploitation of this permission check deficiency. Additionally, the vulnerability underscores the importance of regular security assessments and proper access control implementation within critical infrastructure systems.