CVE-2023-37375 in Tecnomatix Plant Simulation
Summary
by MITRE • 07/11/2023
A vulnerability has been identified in Tecnomatix Plant Simulation V2201 (All versions < V2201.0008), Tecnomatix Plant Simulation V2302 (All versions < V2302.0002). The affected application is vulnerable to stack-based buffer overflow while parsing specially crafted SPP files. This could allow an attacker to execute code in the context of the current process. (ZDI-CAN-21060)
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Analysis
by VulDB Data Team • 07/11/2023
This vulnerability exists in Siemens Tecnomatix Plant Simulation software versions prior to specific patch levels, representing a critical stack-based buffer overflow condition that occurs during the parsing of SPP (Simulation Project Package) files. The flaw stems from inadequate input validation within the application's file processing routines, where maliciously crafted SPP files can trigger memory corruption through excessive data input into fixed-size buffers allocated on the stack. Such buffer overflows are particularly dangerous because they can be exploited to overwrite adjacent memory locations including return addresses and function pointers, potentially enabling arbitrary code execution with the privileges of the affected process. The vulnerability affects both V2201 and V2302 product lines, indicating it is a persistent issue across multiple software versions.
The technical exploitation of this vulnerability requires an attacker to craft a specially formatted SPP file that exceeds the allocated buffer size during parsing operations. When the application processes this malformed file, the stack memory layout becomes corrupted, allowing attackers to redirect execution flow to malicious code injected into the process memory space. This type of vulnerability falls under CWE-121 Stack-based Buffer Overflow, which is classified as a high-severity issue in the Common Weakness Enumeration catalog. The attack vector is typically through social engineering or supply chain compromise where users unknowingly open the malicious SPP file, making this a particularly insidious threat in industrial environments where simulation software is widely used for process modeling and optimization.
The operational impact of this vulnerability extends beyond simple code execution, as it could enable attackers to gain persistent access to industrial control systems and simulation environments that are often integrated with production networks. In manufacturing contexts, where Tecnomatix Plant Simulation is used for designing and optimizing production lines, successful exploitation could lead to disruption of critical manufacturing processes, data manipulation, or even physical system compromise. The vulnerability affects the integrity and availability of simulation data, potentially causing downstream issues in production planning and operational decision-making. Organizations using these simulation tools may face significant risks if attackers can leverage this flaw to gain unauthorized access to their industrial design environments, particularly given that such tools often contain sensitive process information and proprietary designs.
Mitigation strategies for this vulnerability should prioritize immediate patching of affected software versions to the latest releases containing the necessary security fixes. Organizations should implement strict file validation procedures and restrict user permissions when processing simulation files, particularly those received from external sources or untrusted environments. Network segmentation and access controls should be enforced to limit potential lateral movement if exploitation occurs, while monitoring systems should be deployed to detect anomalous file processing activities. Security teams should also consider implementing application whitelisting policies that restrict execution of unauthorized software and establish secure file handling protocols for simulation environments. The vulnerability demonstrates the importance of maintaining up-to-date industrial control system software and highlights the need for comprehensive vulnerability management programs that address both traditional and emerging threats in operational technology environments. This issue aligns with ATT&CK technique T1203, which covers Exploitation for Client Execution, and represents a significant risk to industrial cybersecurity posture in manufacturing environments.