Full Report
Siemens Tecnomatix Plant Simulation do not properly limit the access of the simulation model to the filesystem. This could allow an unauthorized attacker to read or delete arbitrary files or the entire filesystem of the device. Siemens has released new versions for the affected products and recommends to update to the latest versions.
Analysis Summary
# Vulnerability: Improper Access Control in Siemens Tecnomatix Plant Simulation Leading to Arbitrary File Access/Deletion
## CVE Details
- CVE ID: CVE-2025-25266, CVE-2025-25267
- CVSS Score: 6.8 ($\text{CVSS v3.1}$) / 7.0 ($\text{CVSS v4.0}$) for CVE-2025-25266 (High Severity implied by impact)
- CWE: CWE-552: Files or Directories Accessible to External Parties (for both CVEs)
## Affected Systems
- Products: Tecnomatix Plant Simulation
- Versions:
- V2302: All versions before V2302.0021
- V2404: All versions before V2404.0010
- Configurations: Not explicitly stated, but relates to how the simulation model accesses the filesystem.
## Vulnerability Description
Siemens Tecnomatix Plant Simulation fails to properly limit the access permissions of the simulation model to the host system's filesystem.
1. **CVE-2025-25266 (Improper File Deletion Control):** The application improperly restricts access to its file deletion functionality, potentially allowing an attacker to delete arbitrary files, leading to data loss or system file modification. (CVSS 3.1: I:H, A:L)
2. **CVE-2025-25267 (Improper File Scope Restriction):** The application does not properly restrict the range of files accessible to the simulation model, potentially allowing an attacker to read sensitive system files (Confidentiality compromise). (CVSS 3.1: C:H)
## Exploitation
- Status: Not explicitly stated as exploited in the wild, but the advisory addresses vulnerabilities requiring a patch.
- Complexity: Low (AC:L)
- Attack Vector: Local (AV:L)
## Impact
- Confidentiality: High (CVE-2025-25267) - Arbitrary file read resulting in compromise of system confidentiality.
- Integrity: High (CVE-2025-25266) - Arbitrary file deletion/modification.
- Availability: Low to Moderate (CVE-2025-25266) - Potential denial of service via file deletion.
## Remediation
### Patches
- **Tecnomatix Plant Simulation V2302:** Update to version **V2302.0021 or later**.
- **Tecnomatix Plant Simulation V2404:** Update to version **V2404.0010 or later**.
* Patches are provided via Siemens Support: `https://support.sw.siemens.com/product/297028302/`
### Workarounds
- Product-specific workarounds are available in the vendor advisory.
- **General Security Recommendations:** Protect network access to devices using appropriate mechanisms and configure the environment according to Siemens' operational guidelines for Industrial Security.
## Detection
- Detection methods are not explicitly detailed, but indicators of compromise (IOCs) would involve monitoring for unexpected file system modification or reading activity originating from the Tecnomatix Plant Simulation process, especially targeting sensitive system files.
- Utilize endpoint detection and response (EDR) systems to monitor for unusual file deletion/read operations by the application process context.
## References
- Vendor Advisory: `https://cert-portal.siemens.com/productcert/html/ssa-507653.html`
- Siemens Industrial Security Information: `https://www.siemens.com/industrialsecurity`