SSA-492173

Siemens Security Advisory by Siemens ProductCERT

SSA-492173: Expression Injection Vulnerability in Mendix Applications

Publication Date:	2022-07-12
Last Update:	2022-07-12
Current Version:	V1.0
CVSS v3.1 Base Score:	6.5

SUMMARY

An expression injection vulnerability was discovered in the Workflow processing of Mendix Runtime, that can affect the running applications. The vulnerability could allow a malicious user to leak sensitive information if the Workflow visual language of Mendix is used.

Mendix has released updates for the affected product lines, recommends to update to the latest versions and to redeploy the applications.

AFFECTED PRODUCTS AND SOLUTION

Affected Product and Versions	Remediation
Mendix Applications using Mendix 9 All versions >= V9.11 < V9.15	Update to V9.15 or later version https://docs.mendix.com/releasenotes/studio-pro/9/
Mendix Applications using Mendix 9 (V9.12) All versions < V9.12.3	Update to V9.12.3 or later version https://docs.mendix.com/releasenotes/studio-pro/9.12/

WORKAROUNDS AND MITIGATIONS

Siemens has not identified any additional specific mitigations or workarounds. Please follow the General Security Recommendations.

Product specific mitigations can be found in the section Affected Products and Solution.

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 CLASSIFICATION

The vulnerability classification has been performed by using the CVSS scoring system in version 3.1 (CVSS v3.1) (https://www.first.org/cvss/). The CVSS environmental score is specific to the customer’s environment and will impact the overall CVSS score. The environmental score should therefore be individually defined by the customer to accomplish final scoring.

An additional classification has been performed using the CWE classification, a community-developed list of common software security weaknesses. This serves as a common language and as a baseline for weakness identification, mitigation, and prevention efforts. A detailed list of CWE classes can be found at: https://cwe.mitre.org/.

Vulnerability CVE-2022-34466

An expression injection vulnerability was discovered in the Workflow subsystem of Mendix Runtime, that can affect the running applications. The vulnerability could allow a malicious user to leak sensitive information in a certain configuration.

CVSS v3.1 Base Score	6.5
CVSS Vector	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:P/RL:O/RC:C
CWE	CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')

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 (2022-07-12):

Publication Date

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