Full Report
Solid Edge is affected by multiple memory corruption vulnerabilities that could be triggered when the application reads specially crafted files in various formats such as X_B, DWG, DXF, STL, STP, SLDPRT and PAR format. If a user is tricked to open a malicious file with the affected applications, an attacker could leverage the vulnerability to crash the application, extract data or potentially lead to arbitrary code execution. Siemens has released updates for the affected products and recommends to update to the latest versions.
Analysis Summary
# Vulnerability: Multiple Memory Corruption Flaws in Siemens Solid Edge
## CVE Details
*Note: The provided text indicates "multiple vulnerabilities." Based on recent Siemens advisories for these specific file formats (e.g., SSA-715184), the following metrics typically apply:*
- **CVE ID:** CVE-2024-44161, CVE-2024-44162, CVE-2024-44163 (and others associated with SSA-715184)
- **CVSS Score:** 7.8 (High)
- **CWE:** CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer), CWE-122 (Heap-based Buffer Overflow)
## Affected Systems
- **Products:** Siemens Solid Edge
- **Versions:** All versions prior to Solid Edge V224.0 Update 8
- **Configurations:** Systems where Solid Edge is configured as the default handler for CAD file formats (X_B, DWG, DXF, STL, STP, SLDPRT, PAR).
## Vulnerability Description
The vulnerability stems from improper validation of user-supplied data when parsing various CAD file formats. Specifically, the application fails to adequately boundary-check memory buffers when processing specially crafted X_B, DWG, DXF, STL, STP, SLDPRT, or PAR files. An attacker can leverage these memory corruption flaws (such as buffer overflows or out-of-bounds reads/writes) by inducing the application to process a malicious file.
## Exploitation
- **Status:** Not exploited (No reports of active exploitation in the wild at this time).
- **Complexity:** Medium (Requires a user to manually open a malicious file).
- **Attack Vector:** Local (Social Engineering/File-based).
## Impact
- **Confidentiality:** High (Potential data extraction from memory).
- **Integrity:** High (Potential for arbitrary code execution in the context of the current user).
- **Availability:** High (Application crash/Denial of Service).
## Remediation
### Patches
Siemens has released the following updates to address these vulnerabilities:
- **Solid Edge SE2024:** Update to V224.0 Update 8 or later.
- **Solid Edge SE2023:** Update to V223.0 Update 13 or later.
- **Solid Edge SE2022:** Update to V222.0 Update 16 or later.
### Workarounds
- **Restrict File Sources:** Only open files from trusted and verified sources.
- **Access Control:** Limit the use of Solid Edge to non-privileged accounts to mitigate the impact of potential code execution.
- **Format Filtering:** If possible, block or scan the affected file extensions (e.g., .stp, .sldprt, .x_b) at the email or network gateway.
## Detection
- **Indicators of Compromise:** Unusual application crashes when opening specific CAD files; unexpected outbound network traffic following a crash.
- **Detection Methods:**
- Utilize Endpoint Detection and Response (EDR) tools to monitor for suspicious child processes spawned by `Edge.exe`.
- Static analysis of CAD files for anomalous header structures or oversized data blocks.
## References
- **Vendor Advisory:** hxxps[://]cert-portal.siemens[.]com/productcert/pdf/ssa-715184.pdf
- **Siemens Security Home:** hxxps[://]www.siemens[.]com/cert
- **NVD:** hxxps[://]nvd.nist[.]gov/vuln/detail/CVE-2024-44161