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Siemens Tecnomatix Plant Simulation

Plan Patch7.8ICS-CERT ICSA-24-256-12Sep 10, 2024
Attack VectorLocal
Auth RequiredNone
ComplexityLow
User InteractionRequired
Summary

Siemens Tecnomatix Plant Simulation is vulnerable to a stack-based buffer overflow in SPP file parsing. When the application reads a specially crafted SPP file, it can cause the application to crash or potentially execute arbitrary code. The vulnerability is triggered by user interaction—opening a malicious file—and is not remotely exploitable. Siemens has released updates for affected versions.

What this means
What could happen
A user who opens a malicious SPP file in affected Tecnomatix Plant Simulation versions could allow an attacker to crash the application or execute arbitrary code on the engineering workstation. This could disrupt simulation-based process design, commissioning, or training activities.
Who's at risk
Engineering and operations teams at manufacturing facilities using Siemens Tecnomatix Plant Simulation for process design, simulation, and validation. This affects companies that use Plant Simulation V2302 (before 2302.0015) or V2404 (before 2404.0004) for commissioning, training, or digital twin activities.
How it could be exploited
An attacker would need to craft a malicious SPP (Siemens Plant Simulation file format) file and convince a user to open it in an affected version of Tecnomatix Plant Simulation. When opened, the application reads the file and processes a specially crafted buffer that overflows on the stack, triggering a crash or allowing code execution on the workstation where the application runs.
Prerequisites
  • User interaction required (must open the malicious SPP file)
  • Access to deliver the file to the user (email, file share, removable media, etc.)
  • Target system must have affected Tecnomatix Plant Simulation version installed
Low complexity exploitationUser interaction requiredHigh CVSS score (7.8)Affects engineering workstationsNot remotely exploitable
Exploitability
Low exploit probability (EPSS 0.1%)
Affected products (2)
2 with fix
ProductAffected VersionsFix Status
Tecnomatix Plant Simulation V2302<V2302.00152302.0015
Tecnomatix Plant Simulation V2404<V2404.00042404.0004
Remediation & Mitigation
0/5
Do now
0/1
WORKAROUNDDo not open SPP files from untrusted sources
Schedule — requires maintenance window
0/2

Patching may require device reboot — plan for process interruption

Tecnomatix Plant Simulation V2302
HOTFIXUpdate Tecnomatix Plant Simulation V2302 to version 2302.0015 or later
Tecnomatix Plant Simulation V2404
HOTFIXUpdate Tecnomatix Plant Simulation V2404 to version 2404.0004 or later
Long-term hardening
0/2
HARDENINGImplement network segmentation to isolate engineering workstations from general corporate network
HARDENINGRequire VPN access for remote connections to engineering workstations, kept at latest version
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