CVE-2019-18327 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-2019-18326, 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-2019-18327 affects the SPPA-T3000 MS3000 Migration Server, a critical component in industrial automation environments that facilitates data migration and system integration processes. This device operates within operational technology (OT) networks where reliability and security are paramount for maintaining industrial processes. The affected server listens on TCP port 5010, which serves as the primary communication channel for migration operations and system management functions. The vulnerability represents a significant risk to industrial control systems as it can be exploited by attackers who gain network access to the targeted environment, potentially compromising the integrity and availability of critical infrastructure operations.
The technical flaw manifests through improper input validation and handling of network packets sent to the designated port 5010. When specifically crafted malicious packets are transmitted to this service, the system fails to properly process these inputs, leading to a denial-of-service condition that can completely disrupt the server's operation. This vulnerability is particularly concerning because it can potentially escalate to remote code execution, allowing attackers to gain unauthorized control over the migration server. The flaw likely stems from insufficient bounds checking, buffer overflow conditions, or improper state management within the packet processing routines, which are common weaknesses in network services that handle external inputs without adequate sanitization.
The operational impact of this vulnerability extends beyond simple service disruption, as it can compromise the entire migration process for industrial systems. In environments where the MS3000 Migration Server is responsible for transferring critical configuration data between different system versions or migrating legacy systems to newer platforms, a successful exploitation could result in complete operational paralysis. The vulnerability's independence from other related CVEs indicates that it represents a distinct attack surface that requires separate mitigation strategies. Organizations relying on SPPA-T3000 systems face potential risks including production downtime, data corruption during migration processes, and possible cascading failures that could affect downstream industrial processes.
Security practitioners should note that this vulnerability aligns with CWE-121, which describes stack-based buffer overflow conditions, and potentially CWE-122 for heap-based buffer overflows, both of which are common in network service implementations. From an ATT&CK framework perspective, this vulnerability maps to T1203, which covers Obfuscated Files or Information, and T1498, covering Network Denial of Service, with potential progression to T1059 for remote code execution. The attack vector requires network access to the target system, making network segmentation and access controls crucial defensive measures. Organizations should implement network access controls to restrict access to port 5010 to authorized personnel only, deploy intrusion detection systems to monitor for suspicious packet patterns, and ensure that all systems are updated with vendor-provided patches. The absence of public exploitation at the time of advisory publication does not diminish the severity of the vulnerability, as it represents a potential zero-day risk that could be weaponized by threat actors with sufficient technical capabilities and access to the target network environment.