SSA-852501

Siemens Security Advisory by Siemens ProductCERT

SSA-852501: Multiple Memory Corruption Vulnerabilities in Simcenter Nastran Before 2406.5000

Publication Date:	2024-10-08
Last Update:	2024-10-08
Current Version:	V1.0
CVSS v3.1 Base Score:	7.8
CVSS v4.0 Base Score:	7.3

SUMMARY

Simcenter Nastran contains multiple memory corruption vulnerabilities that could be triggered when the application reads files in BDF file formats. 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 a new version for Simcenter Nastran 2406 and recommends to update to the latest version. Siemens is preparing further fix versions and recommends countermeasures for products where fixes are not, or not yet available.

AFFECTED PRODUCTS AND SOLUTION

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Affected Product and Versions	Remediation
Simcenter Nastran 2306 All versions affected by all CVEs CVE-2024-41981 CVE-2024-47046	Currently no fix is available See recommendations from section Workarounds and Mitigations
Simcenter Nastran 2312 All versions affected by all CVEs CVE-2024-41981 CVE-2024-47046	Currently no fix is available See recommendations from section Workarounds and Mitigations
Simcenter Nastran 2406 All versions < V2406.5000 affected by all CVEs CVE-2024-41981 CVE-2024-47046	Update to V2406.5000 or later version https://support.sw.siemens.com/ See further recommendations from section Workarounds and Mitigations

WORKAROUNDS AND MITIGATIONS

Siemens has identified the following specific workarounds and mitigations that customers can apply to reduce the risk:

CVE-2024-41981, CVE-2024-47046: Do not open untrusted BDF files in the affected applications

Product-specific remediations or mitigations can be found in the section Affected Products and Solution.
Please follow the General Security Recommendations.

GENERAL SECURITY RECOMMENDATIONS

As a general security measure, Siemens strongly recommends to protect network access to devices with appropriate mechanisms. In order to operate the devices in a protected IT environment, Siemens recommends to configure the environment according to Siemens' operational guidelines for Industrial Security (Download: https://www.siemens.com/cert/operational-guidelines-industrial-security), and to follow the recommendations in the product manuals. Additional information on Industrial Security by Siemens can be found at: https://www.siemens.com/industrialsecurity

PRODUCT DESCRIPTION

Simcenter Nastran is a finite element method (FEM) solver for computational performance, accuracy and reliability. It is a solution for linear and nonlinear structural analysis, structural dynamics, acoustics, rotor dynamics, aeroelasticity and optimization.

VULNERABILITY DESCRIPTION

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This chapter describes all vulnerabilities (CVE-IDs) addressed in this security advisory. Wherever applicable, it also documents the product-specific impact of the individual vulnerabilities.

Vulnerability CVE-2024-41981

The affected application is vulnerable to heap-based buffer overflow while parsing specially crafted BDF files. This could allow an attacker to execute code in the context of the current process.

CVSS v3.1 Base Score	7.8
CVSS v3.1 Vector	CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS v4.0 Base Score	7.3
CVSS v4.0 Vector	CVSS:4.0/AV:L/AC:H/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CWE	CWE-122: Heap-based Buffer Overflow

Vulnerability CVE-2024-47046

The affected application is vulnerable to memory corruption while parsing specially crafted BDF files. This could allow an attacker to execute code in the context of the current process.

CVSS v3.1 Base Score	7.8
CVSS v3.1 Vector	CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS v4.0 Base Score	7.3
CVSS v4.0 Vector	CVSS:4.0/AV:L/AC:H/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CWE	CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer

ACKNOWLEDGMENTS

Siemens thanks the following party for its efforts:

Michael Heinzl for coordinated disclosure of the vulnerabilities

ADDITIONAL INFORMATION

For further inquiries on security vulnerabilities in Siemens products and solutions, please contact the Siemens ProductCERT: https://www.siemens.com/cert/advisories

HISTORY DATA

V1.0 (2024-10-08):

Publication Date

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