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File Parsing Vulnerability in Simcenter Femap before V2022.2

Plan Patch7.8SSA-474231Jul 12, 2022
Attack VectorLocal
Auth RequiredNone
ComplexityLow
User InteractionRequired
Summary

Simcenter Femap versions before V2022.2 contain an out-of-bounds write vulnerability in file parsing (X_T format files). If a user opens a malicious X_T file with the affected application, an attacker can execute arbitrary code with the privileges of the user running Femap.

What this means
What could happen
An attacker could trick an engineer into opening a malicious design file, gaining the ability to run arbitrary commands on the engineering workstation with that user's privileges. This could compromise engineering data, modify design files, or provide a foothold into the industrial network.
Who's at risk
Engineering teams using Simcenter Femap for mechanical design, simulation, and finite element analysis. This affects any organization relying on Femap for CAD/CAE work on industrial equipment, power generation systems, water treatment systems, or manufacturing facilities.
How it could be exploited
An attacker crafts a malicious X_T format file (Simcenter design file) and tricks an engineer into opening it via email, shared drive, or other social engineering. When Femap parses the file, the out-of-bounds write vulnerability is triggered, allowing code execution within the Femap process running on the workstation.
Prerequisites
  • User must open a malicious X_T format file in Simcenter Femap
  • Simcenter Femap must be installed on the user's workstation
  • Affected version (before V2022.2) must be in use
Low attack complexityUser interaction required (file opening)High impact on confidentiality and integrityAffects engineering workstationsFile format parsing vulnerability
Exploitability
Low exploit probability (EPSS 0.4%)
Affected products (1)
ProductAffected VersionsFix Status
Simcenter Femap< V2022.22022.2
Remediation & Mitigation
0/3
Do now
0/2
WORKAROUNDDisable or restrict the ability to open X_T format files from untrusted sources; configure file association security policies
HARDENINGEducate engineering staff not to open design files from untrusted sources; implement email filtering for file attachments
Schedule — requires maintenance window
0/1

Patching may require device reboot — plan for process interruption

HOTFIXUpdate Simcenter Femap to version 2022.2 or later
View full Siemens ProductCERT advisory
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