Full Report
Siemens has released version V13.1.0.2 for JT2Go and Teamcenter Visualization to fix multiple vulnerabilities that could be triggered when the products read files in ASM and PAR file formats. If a user is tricked to opening of a malicious file with the affected products, this could lead to application crash, or potentially arbitrary code execution or data extraction on the target host system. Siemens recommends to update to the latest versions and to limit opening of untrusted files from unknown sources in the affected products.
Analysis Summary
# Vulnerability: Multiple Memory Corruptions in Siemens JT2Go and Teamcenter Visualization
## CVE Details
*Note: The provided text mentions "multiple vulnerabilities" addressed in version V13.1.0.2. While specific CVEs are typically assigned (such as CVE-2020-26980 or similar in these product lines), the provided context does not list individual IDs. Based on the description:*
- **CVE ID:** Multiple (See Siemens Advisory SSA-622830 or equivalent)
- **CVSS Score:** ~7.8 (High) - *Typical for file-parsing RCE vulnerabilities*
- **CWE:** CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer), CWE-125 (Out-of-bounds Read), CWE-787 (Out-of-bounds Write).
## Affected Systems
- **Products:**
- JT2Go
- Teamcenter Visualization
- **Versions:** All versions prior to V13.1.0.2
- **Configurations:** Systems where these applications are configured to parse or view ASM (Solid Edge Assembly) and PAR (Solid Edge Part) file formats.
## Vulnerability Description
The vulnerability exists within the file-parsing engine of JT2Go and Teamcenter Visualization. Specifically, the applications do not properly validate inputs when reading **ASM** and **PAR** files. A specially crafted file can cause a memory corruption (such as a buffer overflow or out-of-bounds access). This can result in an application crash (Denial of Service) or, more critically, allow the attacker to hijack the program's execution flow.
## Exploitation
- **Status:** PoC availability unknown (Typically requires social engineering)
- **Complexity:** Medium (Requires a user to manually open a malicious file)
- **Attack Vector:** Local / User Interaction (The attacker must trick a user into opening a malicious file via email, web download, or shared drive).
## Impact
- **Confidentiality:** High (Potential for data extraction from the host system)
- **Integrity:** High (Potential for arbitrary code execution)
- **Availability:** High (Application crash)
## Remediation
### Patches
Siemens has released the following updates to address these flaws:
- **JT2Go:** Update to **V13.1.0.2** or later.
- **Teamcenter Visualization:** Update to **V13.1.0.2** or later.
### Workarounds
- **Strict File Handling:** Limit the opening of untrusted files from unknown or unverified sources.
- **Least Privilege:** Run the applications under a non-privileged user account to limit the potential impact of code execution.
- **File Association:** If ASM and PAR files are not required for daily operations, consider removing the file association for these extensions.
## Detection
- **Indicators of Compromise:** Unusual application crashes when opening CAD files; unexpected outbound network traffic from the JT2Go/Teamcenter process.
- **Detection methods:** Antivirus/EDR solutions may detect known malicious patterns in crafted ASM/PAR files. Use file integrity monitoring for critical design environments.
## References
- **Siemens Security Advisory:** hxxps[://]www[.]siemens[.]com/cert/advisories
- **Siemens Product Support:** hxxps[://]support[.]sw[.]siemens[.]com/