SSA-914892

Siemens Security Advisory by Siemens ProductCERT

SSA-914892: Race Condition Vulnerability in Basic Authentication Implementation of Mendix Runtime

Publication Date:	2024-11-12
Last Update:	2024-11-12
Current Version:	V1.0
CVSS v3.1 Base Score:	5.3
CVSS v4.0 Base Score:	6.9

SUMMARY

The basic authentication mechanism of Mendix Runtime contains a race condition vulnerability which could allow unauthenticated remote attackers to circumvent default account lockout measures.

Siemens has released new versions for several affected products and recommends to update to the latest versions. Siemens recommends specific countermeasures for products where fixes are not, or not yet available.

AFFECTED PRODUCTS AND SOLUTION

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Affected Product and Versions	Remediation
Mendix Runtime V8 All versions affected by CVE-2024-50313	Currently no fix is planned See recommendations from section Workarounds and Mitigations
Mendix Runtime V9 All versions < V9.24.29 only if the basic authentication mechanism is used by the application affected by CVE-2024-50313	Update to V9.24.29 or later version https://docs.mendix.com/releasenotes/studio-pro/9/ See further recommendations from section Workarounds and Mitigations
Mendix Runtime V10 All versions < V10.16.0 only if the basic authentication mechanism is used by the application affected by CVE-2024-50313	Update to V10.16.0 or later version https://docs.mendix.com/releasenotes/studio-pro/10/ See further recommendations from section Workarounds and Mitigations
Mendix Runtime V10.6 All versions < V10.6.15 only if the basic authentication mechanism is used by the application affected by CVE-2024-50313	Update to V10.6.15 or later version https://docs.mendix.com/releasenotes/studio-pro/10/ See further recommendations from section Workarounds and Mitigations
Mendix Runtime V10.12 All versions < V10.12.7 only if the basic authentication mechanism is used by the application affected by CVE-2024-50313	Update to V10.12.7 or later version https://docs.mendix.com/releasenotes/studio-pro/10/ 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:

Do not use basic authentication, but setup an alternative authentication module (e.g. SAML, MendixSSO), or your own Identity Provider (IDP)

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

Mendix is a high productivity app platform that enables you to build and continuously improve mobile and web applications at scale. The Mendix Platform is designed to accelerate enterprise app delivery across your entire application development lifecycle, from ideation to deployment and operations.

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-2024-50313

The basic authentication implementation of affected applications contains a race condition vulnerability which could allow unauthenticated remote attackers to circumvent default account lockout measures.

CVSS v3.1 Base Score	5.3
CVSS v3.1 Vector	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
CVSS v4.0 Base Score	6.9
CVSS v4.0 Vector	CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
CWE	CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

ACKNOWLEDGMENTS

Siemens thanks the following party for its efforts:

Lian Aldrich, Robin Roodt, and Christopher Panayi from MWR CyberSec for reporting the vulnerability

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 (2024-11-12):

Publication Date

The use of Siemens Security Advisories is subject to the terms and conditions listed on: https://www.siemens.com/productcert/terms-of-use.