CVE-2019-18330 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-2019-18323, CVE-2019-18324, CVE-2019-18325, CVE-2019-18326, CVE-2019-18327, CVE-2019-18328, and CVE-2019-18329. 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-2019-18330 represents a critical security flaw within the SPPA-T3000 MS3000 Migration Server software, affecting all versions of this industrial control system component. This vulnerability resides in the server's network communication handling mechanisms, specifically targeting the service listening on TCP port 5010. The MS3000 Migration Server operates within industrial environments where reliability and security are paramount, making this vulnerability particularly concerning for operational technology infrastructure. The affected system serves as a migration tool for transferring data and configurations within the SPPA-T3000 suite, which is commonly deployed in process automation and control applications across various industrial sectors including oil and gas, chemical processing, and power generation facilities.
The technical implementation flaw manifests through improper input validation and handling of network packets received on the designated port 5010. An attacker exploiting this vulnerability can craft malicious packets that, when processed by the vulnerable server, trigger a cascade of system failures leading to denial-of-service conditions. The vulnerability's exploitation potential extends beyond simple service disruption, as it can potentially enable remote code execution on the affected system. This represents a severe security weakness that allows an attacker to gain unauthorized access to the server's operational environment, potentially compromising the entire industrial control network. The vulnerability's design flaw falls under CWE-121, which addresses stack-based buffer overflow conditions, and may also involve CWE-122 for heap-based buffer overflows, depending on the specific implementation details of the packet processing code. The attack surface is limited to network-accessible systems, requiring the attacker to establish connectivity to the target MS3000 server, which aligns with the ATT&CK technique T1190 for Exploit Public-Facing Application and T1071.004 for Application Layer Protocol.
The operational impact of this vulnerability extends far beyond simple service interruption, as it threatens the integrity and availability of critical industrial processes. In environments where the MS3000 Migration Server serves as a gateway for configuration transfers and system migrations, a successful exploitation could lead to complete system unavailability, forcing operators to manually restore services and potentially causing production downtime. The remote code execution capability introduces additional risks including data exfiltration, system compromise, and potential lateral movement within the industrial network. This vulnerability particularly affects organizations using Siemens SPPA-T3000 systems, which are deployed in mission-critical applications where system availability directly impacts operational safety and economic considerations. The vulnerability's independence from other related CVEs indicates that it operates through different code paths and attack vectors, making it a distinct threat that requires specific mitigation strategies.
Mitigation strategies for CVE-2019-18330 should focus on network segmentation and access control measures to prevent unauthorized network access to the affected server. Organizations should implement firewall rules that restrict access to TCP port 5010 to only trusted network segments and authorized personnel. The most effective immediate solution involves applying vendor-provided security patches and updates to the MS3000 Migration Server software, which would address the underlying buffer overflow conditions in the packet processing code. Network monitoring should be enhanced to detect anomalous traffic patterns on port 5010, and intrusion detection systems should be configured to alert on suspicious packet structures that match the vulnerability's exploitation patterns. Additionally, implementing network access control lists and restricting administrative access to the server can significantly reduce the attack surface. The ATT&CK framework suggests implementing defensive measures such as T1068 for Additional Controls and T1071.004 for Network Protocol Impersonation to prevent exploitation attempts. Organizations should also conduct thorough vulnerability assessments to identify other potentially affected systems within their industrial control networks and ensure proper network segmentation to limit the impact of successful exploitation attempts.