X_T File Parsing Vulnerabilities in Simcenter Femap
Plan Patch7.8SSA-887122Nov 14, 2023
Attack VectorLocal
Auth RequiredNone
ComplexityLow
User InteractionRequired
Summary
Simcenter Femap versions V2301 (before 2301.0003) and V2306 (before 2306.0001) are vulnerable to out-of-bounds write errors when parsing X_T format files. If a user opens a malicious X_T file, an attacker can execute arbitrary code with the privileges of the Femap user. Siemens has released corrected versions (V2301.0003 and V2306.0001 or later).
What this means
What could happen
An attacker who tricks an engineer into opening a malicious X_T file could execute arbitrary code on the computer with the privileges of the person running Femap, potentially compromising engineering workstations or design data.
Who's at risk
Engineering teams and CAD designers who use Simcenter Femap for simulation and analysis work. This affects equipment design and validation processes, particularly in organizations using Siemens simulation tools for product development in manufacturing, aerospace, and industrial control system design.
How it could be exploited
Attacker crafts a malicious X_T format file (CAD file format used in Simcenter Femap) and sends it to an engineer via email or file sharing. When the engineer opens the file in Femap, the out-of-bounds write vulnerability is triggered, allowing code execution on the workstation.
Prerequisites
- User interaction required: engineer must open a malicious X_T file
- Affected version of Simcenter Femap must be installed on the workstation
User interaction requiredOut-of-bounds write vulnerabilityAffects engineering workstationsPotentially affects design data integrity
Exploitability
Low exploit probability (EPSS 0.1%)
Affected products (2)
2 with fix
ProductAffected VersionsFix Status
Simcenter Femap V2301<V2301.00032301.0003
Simcenter Femap V2306<V2306.00012306.0001
Remediation & Mitigation
0/4
Do now
0/1HARDENINGTrain engineering staff not to open X_T files from untrusted sources without verification
Schedule — requires maintenance window
0/2Patching may require device reboot — plan for process interruption
Simcenter Femap V2301
HOTFIXUpdate Simcenter Femap V2301 to version 2301.0003 or later
Simcenter Femap V2306
HOTFIXUpdate Simcenter Femap V2306 to version 2306.0001 or later
Long-term hardening
0/1HARDENINGRestrict file sharing and email attachments to engineering workstations using endpoint security controls
CVEs (2)
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