SSA-426509

Siemens Security Advisory by Siemens ProductCERT

SSA-426509: Multiple Local Code Execution Vulnerabilities in Questa and ModelSim Before V2024.3

Publication Date:	2024-10-08
Last Update:	2024-10-08
Current Version:	V1.0
CVSS v3.1 Base Score:	6.7
CVSS v4.0 Base Score:	5.4

SUMMARY

Questa and ModelSim (incl. OEM Editions) are affected by multiple vulnerabilities that could allow a local attacker to inject arbitrary code and escalate privileges.

Siemens has released new versions for the affected products and recommends to update to the latest versions.

AFFECTED PRODUCTS AND SOLUTION

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Affected Product and Versions	Remediation
Questa/ModelSim	Update to V2024.3 or later version Harden the application server to prevent local access by untrusted personnel
ModelSim All versions < V2024.3 affected by all CVEs CVE-2024-47194 CVE-2024-47195 CVE-2024-47196	Update to V2024.3 or later version Harden the application server to prevent local access by untrusted personnel https://support.sw.siemens.com/product/852852093/
Questa All versions < V2024.3 affected by all CVEs CVE-2024-47194 CVE-2024-47195 CVE-2024-47196	Update to V2024.3 or later version Harden the application server to prevent local access by untrusted personnel https://support.sw.siemens.com/product/852852103/

WORKAROUNDS AND MITIGATIONS

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

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-2024-47194

vish2.exe in affected applications allows a specific DLL file to be loaded from the current working directory. This could allow an authenticated local attacker to inject arbitrary code and escalate privileges in installations where administrators or processes with elevated privileges launch vish2.exe from a user-writable directory.

CVSS v3.1 Base Score	6.7
CVSS v3.1 Vector	CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H
CVSS v4.0 Base Score	5.4
CVSS v4.0 Vector	CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CWE	CWE-427: Uncontrolled Search Path Element

Vulnerability CVE-2024-47195

gdb.exe in affected applications allows a specific executable file to be loaded from the current working directory. This could allow an authenticated local attacker to inject arbitrary code and escalate privileges in installations where administrators or processes with elevated privileges launch gdb.exe from a user-writable directory.

CVSS v3.1 Base Score	6.7
CVSS v3.1 Vector	CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H
CVSS v4.0 Base Score	5.4
CVSS v4.0 Vector	CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CWE	CWE-427: Uncontrolled Search Path Element

Vulnerability CVE-2024-47196

vsimk.exe in affected applications allows a specific tcl file to be loaded from the current working directory. This could allow an authenticated local attacker to inject arbitrary code and escalate privileges in installations where administrators or processes with elevated privileges launch vsimk.exe from a user-writable directory.

CVSS v3.1 Base Score	6.7
CVSS v3.1 Vector	CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H
CVSS v4.0 Base Score	5.4
CVSS v4.0 Vector	CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CWE	CWE-427: Uncontrolled Search Path Element

ACKNOWLEDGMENTS

Siemens thanks the following parties for their efforts:

ycdxsb for reporting the vulnerabilities
Intel PSIRT for coordination efforts

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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