Full Report
Siemens Tecnomatix Plant Simulation contains multiple file parsing vulnerabilities that could be triggered when the application reads files in WRL format. If a user is tricked to open a malicious file with any of the affected products, this could lead the application to crash or potentially lead to arbitrary code execution. Siemens has released new versions for the affected products and recommends to update to the latest versions.
Analysis Summary
# Vulnerability: Multiple WRL File Parsing Vulnerabilities in Siemens Tecnomatix Plant Simulation
## CVE Details
- **CVE IDs:**
- **Primary (High Severity):** CVE-2024-45463 through CVE-2024-45475, CVE-2024-53041, CVE-2024-53242
- **Low Severity:** CVE-2024-45476
- **CVSS Score:** 7.8 (High) - CVSS v3.1 / 7.3 (High) - CVSS v4.0
- **CWE:**
- CWE-121 (Stack-based Buffer Overflow)
- CWE-125 (Out-of-bounds Read)
- CWE-476 (NULL Pointer Dereference)
- CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer)
## Affected Systems
- **Products:** Tecnomatix Plant Simulation
- **Versions:**
- V2302: All versions prior to V2302.0016
- V2404: All versions prior to V2404.0005
- **Configurations:** Systems where users open and process VRML (.WRL) files.
## Vulnerability Description
Siemens Tecnomatix Plant Simulation contains multiple memory safety vulnerabilities within its WRL file parsing engine. These include stack-based buffer overflows, out-of-bounds reads, and null pointer dereferences. The flaws occur when the application improperly validates or restricts data read from a specially crafted WRL file into its memory buffers.
## Exploitation
- **Status:** PoC available (coordinated disclosure via Trend Micro ZDI and ADLab of Venustech). No known exploitation in the wild at this time.
- **Complexity:** Low (for CVSS 3.1) / Medium (for CVSS 4.0 "Attack Complexity").
- **Attack Vector:** Local (Requires user interaction to open a malicious file).
## Impact
- **Confidentiality:** High (Potential for arbitrary code execution in the context of the current process).
- **Integrity:** High (Potential for arbitrary code execution).
- **Availability:** High (Application crashes or system compromise).
## Remediation
### Patches
Siemens recommends upgrading to the following versions or later:
- **Tecnomatix Plant Simulation V2302:** Update to **V2302.0016**
- **Tecnomatix Plant Simulation V2404:** Update to **V2404.0005**
### Workarounds
- **Restrict File Access:** Do not open .WRL files from untrusted or unknown sources.
- **Principle of Least Privilege:** Run the application with the minimum necessary user permissions to limit the impact of potential code execution.
## Detection
- **Indicators of Compromise:** Unexpected application crashes when opening .WRL files; unusual child processes spawned by plantSimulation.exe.
- **Detection Methods:** Monitor for non-standard .WRL files via sandbox analysis or specialized CAD/PLM security scanning tools. Ensure endpoint protection (EDR) is monitoring the Tecnomatix process for memory corruption attempts.
## References
- **Vendor Advisory:** hxxps://cert-portal[.]siemens[.]com/productcert/html/ssa-583523.html
- **Support Portal:** hxxps://support[.]sw[.]siemens[.]com/product/297028302/
- **Siemens ProductCERT:** hxxps://www[.]siemens[.]com/cert/advisories