CVE-2019-18326 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 can 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-2019-18323, CVE-2019-18324, CVE-2019-18325, 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-2019-18326 affects the SPPA-T3000 MS3000 Migration Server, a critical component in industrial automation systems used for managing and migrating data between different versions of the SPPA-T3000 system. This particular vulnerability resides within the server's network service listening on TCP port 5010, making it accessible to attackers who can establish network connectivity to the target system. The MS3000 Migration Server operates within industrial control systems where reliability and security are paramount, as these systems control critical infrastructure operations including power generation, oil and gas processing, and manufacturing processes. The vulnerability represents a significant concern for operational technology environments where system availability directly impacts industrial processes and safety protocols.
The technical flaw manifests as a lack of proper input validation and sanitization within the server's packet processing functionality. When an attacker sends specifically crafted packets to the designated port 5010, the system fails to adequately validate the incoming data structure, leading to unpredictable behavior that can result in either a denial-of-service condition or potentially remote code execution. This vulnerability stems from insufficient boundary checking and memory management practices within the server's communication protocol implementation, creating opportunities for malformed data to cause system crashes or allow unauthorized code execution. The vulnerability is classified under CWE-121, which relates to buffer overflow conditions, and potentially CWE-122, which addresses buffer overflow vulnerabilities where insufficient space is allocated for data. The attack vector requires network access to the target system, indicating that physical security controls and network segmentation play crucial roles in mitigating this threat.
The operational impact of this vulnerability extends beyond simple service interruption to potentially compromise the integrity and availability of critical industrial processes. A successful denial-of-service attack could halt migration operations between system versions, causing operational delays and potential production losses. More critically, the potential for remote code execution provides attackers with opportunities to establish persistent access to the industrial control environment, potentially leading to broader system compromise. This vulnerability affects all versions of the MS3000 Migration Server, meaning that organizations with legacy systems are particularly at risk. The attack surface is limited to systems with direct network access to the server, but in industrial environments where security perimeters may be less rigid, this access can be achieved through various means including compromised credentials, unpatched network devices, or insufficient network segmentation. The vulnerability's independence from related CVEs indicates that it operates through different attack mechanisms, requiring multiple mitigation strategies to address the complete threat landscape.
Organizations should implement immediate network segmentation measures to isolate the MS3000 Migration Server from general network access, restricting access to only authorized personnel with legitimate business requirements. The recommended mitigation includes applying vendor-provided patches and updates as soon as they become available, implementing network access controls using firewalls to restrict access to TCP port 5010, and monitoring network traffic for suspicious activity on this port. Additionally, organizations should conduct regular vulnerability assessments and penetration testing to identify similar vulnerabilities in other industrial control system components. From an ATT&CK framework perspective, this vulnerability maps to T1190 (Exploit Public-Facing Application) and potentially T1059 (Command and Scripting Interpreter) if remote code execution is achieved. The vulnerability also aligns with industrial cybersecurity frameworks such as NIST SP 800-82 and IEC 62443, which emphasize the importance of network segmentation and access controls in protecting industrial control systems. Organizations should also consider implementing intrusion detection systems specifically configured to monitor for patterns associated with this vulnerability and establish incident response procedures to address potential exploitation attempts.