CVE-2019-18323 in SPPA-T3000 MS3000 Migration Server
Summary
by MITRE
A vulnerability has been identified in SPPA-T3000 MS3000 Migration Server (All versions). An attacker with network access to the MS3000 Server could cause a Denial-of-Service condition and potentially gain remote code execution by sending specifically crafted packets to 5010/tcp. This vulnerability is independent from CVE-2019-18324, CVE-2019-18325, CVE-2019-18326, CVE-2019-18327, CVE-2019-18328, CVE-2019-18329, and CVE-2019-18330. Please note that an attacker needs to have network access to the MS3000 in order to exploit this vulnerability. At the time of advisory publication no public exploitation of this security vulnerability was known.
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Analysis
by VulDB Data Team • 03/11/2024
The vulnerability identified as CVE-2019-18323 affects the SPPA-T3000 MS3000 Migration Server, a critical component in industrial automation and process control systems. This device serves as a migration server for transferring data and configurations between different versions of the SPPA-T3000 system, making it a potential target for attackers seeking to disrupt industrial operations. The vulnerability resides in the server's handling of network packets on TCP port 5010, which is used for communication with the migration server. This specific port configuration indicates the server operates within industrial control networks where network segmentation and access controls are paramount for maintaining operational technology security. The affected system represents a significant risk in industrial environments where continuous operation is critical for safety and production processes.
The technical flaw manifests as a lack of proper input validation and sanitization in the packet processing mechanism of the MS3000 Migration Server. When an attacker sends specifically crafted packets to the designated TCP port 5010, the server fails to properly validate the incoming data structure, leading to a denial-of-service condition that can potentially escalate to remote code execution. This vulnerability demonstrates poor defensive programming practices where the system does not implement adequate bounds checking, buffer overflow protections, or protocol validation mechanisms. The attack vector requires network access to the target server, indicating that the vulnerability is not exploitable from external networks without proper network access, but represents a significant risk in environments where internal network segmentation is inadequate. The vulnerability classification aligns with CWE-121, which describes heap-based buffer overflow conditions, and CWE-122, which covers buffer overflow conditions in heap-based data structures, both of which are common in industrial protocol implementations.
The operational impact of this vulnerability extends beyond simple service disruption to potentially compromise the entire industrial control system. A successful exploitation could allow attackers to execute arbitrary code on the migration server, potentially leading to complete system compromise and enabling further attacks on connected industrial control systems. The denial-of-service condition could disrupt critical migration processes, causing production delays or system failures in industrial environments where timely data migration is essential. In the context of industrial control systems, this vulnerability represents a significant concern for organizations following NIST SP 800-82 guidelines for industrial control systems security, as it directly impacts the availability and integrity of critical infrastructure components. The vulnerability's independence from related CVEs indicates it operates through a distinct code path, making it particularly concerning for organizations that may have addressed other vulnerabilities without considering this specific attack surface.
Mitigation strategies should focus on network segmentation and access control implementation to limit exposure of the MS3000 Migration Server to untrusted networks. Organizations should implement strict firewall rules to restrict access to TCP port 5010 to only authorized systems and personnel, following the principle of least privilege as outlined in NIST SP 800-53 security controls. Network monitoring should be enhanced to detect anomalous packet patterns on the affected port, enabling early detection of potential exploitation attempts. The vulnerability's exploitation requires network access, making network access control a primary defense mechanism, which aligns with ATT&CK technique T1046 for network service scanning and T1071 for application layer protocols. System administrators should also consider implementing network intrusion detection systems and regularly updating the server software to address the vulnerability, as the lack of public exploitation knowledge does not guarantee future absence of attacks. Organizations should conduct risk assessments to determine the criticality of the migration server and implement appropriate compensating controls, including network monitoring, access logging, and regular security audits to detect unauthorized access attempts.