Multiple WRL File Parsing Vulnerabilities in Tecnomatix Plant Simulation Before V2302.0018 and V2404.0007

Plan PatchCVSS 7.8SSA-824503Nov 18, 2024
Siemens
Attack path
Attack VectorLocal
Auth RequiredNone
ComplexityLow
User InteractionRequired
Summary

Siemens Tecnomatix Plant Simulation contains multiple file parsing vulnerabilities in its WRL (VRML) file handler. When a user opens a malicious WRL file, the application may crash or allow arbitrary code execution due to buffer overflow (CWE-787), out-of-bounds read (CWE-125), use-after-free (CWE-416), and stack buffer overflow (CWE-121) conditions.

What this means
What could happen
An attacker could craft a malicious WRL file that, when opened in Tecnomatix Plant Simulation, causes the application to crash or execute arbitrary code with the privileges of the user running the application.
Who's at risk
This vulnerability affects engineering and manufacturing professionals who use Siemens Tecnomatix Plant Simulation for factory layout design and simulation. At utilities and municipal plants, this may include planning and asset management teams who design or maintain facility layouts, as well as training departments that use simulations. The primary risk is to workstations and engineering networks rather than production OT systems, unless these workstations are used to configure or control real plant equipment.
How it could be exploited
An attacker sends a crafted WRL (VRML) file to a Tecnomatix user via email or file sharing. When the user opens the file in Plant Simulation, the application's WRL parser processes the malicious content, triggering a buffer overflow or use-after-free condition that could crash the application or allow code execution on the workstation.
Prerequisites
  • User must open a malicious WRL file in Tecnomatix Plant Simulation
  • Affected version of Tecnomatix Plant Simulation must be installed (V2302 before 0018 or V2404 before 0007)
  • User interaction required—file must be explicitly opened by the user
Low complexity to exploitUser interaction required (file must be opened)High impact if exploited (code execution)Buffer overflow and memory corruption vulnerabilities
Exploitability
Unlikely to be exploited — EPSS score 0.2%
Affected products (2)
2 with fix
ProductAffected VersionsFix Status
Tecnomatix Plant Simulation V2302< V2302.00182302.0018
Tecnomatix Plant Simulation V2404< V2404.00072404.0007
Remediation & Mitigation
0/4
Do now
0/1
HARDENINGEducate users not to open WRL files from untrusted sources or unexpected communications
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 2302.0018 or later
Tecnomatix Plant Simulation V2404
HOTFIXUpdate Tecnomatix Plant Simulation V2404 to version 2404.0007 or later
Long-term hardening
0/1
HARDENINGRestrict Tecnomatix access to authorized engineering/design personnel only
API: /api/v1/advisories/e818b97c-514b-4fdf-82f1-a5b975869234

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Multiple WRL File Parsing Vulnerabilities in Tecnomatix Plant Simulation Before V2302.0018 and V2404.0007 | CVSS 7.8 - OTPulse