-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 # SSA-875726: Privilege Escalation Vulnerability in Mendix Publication Date: 2021-04-14 Last Update: 2021-04-14 Current Version: 1.0 CVSS v3.1 Base Score: 8.1 SUMMARY ======= The latest updates for Mendix fix a vulnerability in Mendix Applications that could allow malicious authorized users to escalate their privileges. Mendix has released an update for Mendix and recommends to update to the latest version. AFFECTED PRODUCTS AND SOLUTION ============================== * Mendix Applications using Mendix 7 - Affected versions: All versions < V7.23.19 - Remediation: Update your Mendix Project to V7.23.19 or later version and redeploy your application - Download: https://docs.mendix.com/releasenotes/studio-pro/7.23 * Mendix Applications using Mendix 8 - Affected versions: All versions < V8.17.0 - Remediation: Update your Mendix Project to V8.17.0 or later version and redeploy your application - Download: https://docs.mendix.com/releasenotes/studio-pro/8.17 * Mendix Applications using Mendix 8 (V8.12) - Affected versions: All versions < V8.12.5 - Remediation: Update your Mendix Project to V8.12.5 or later and preferably the latest V8.18 version and redeploy your application - Download: https://docs.mendix.com/releasenotes/studio-pro/8.12 * Mendix Applications using Mendix 8 (V8.6) - Affected versions: All versions < V8.6.9 - Remediation: Update your Mendix Project to V8.6.9 or later and preferably the latest V8.18 version and redeploy your application - Download: https://docs.mendix.com/releasenotes/studio-pro/8.6 * Mendix Applications using Mendix 9 - Affected versions: All versions < V9.0.5 - Remediation: Update your Mendix Project to V9.0.5 or later version and redeploy your application - Download: https://docs.mendix.com/releasenotes/studio-pro/9.0 WORKAROUNDS AND MITIGATIONS =========================== Siemens has identified the following specific workarounds and mitigations that customers can apply to reduce the risk: * Remove the privilege to manage user roles for non-administrative roles to mitigate this vulnerability for non-administrative users 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-2021-27394 Authenticated, non-administrative users could modify their privileges by manipulating the user role under certain circumstances, allowing them to gain administrative privileges. CVSS v3.1 Base Score: 8.1 CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N/E:P/RL:O/RC:C CWE: CWE-269: Improper Privilege Management ACKNOWLEDGMENTS =============== Siemens thanks the following parties for their efforts: * FlowFabric BV for coordinated disclosure 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 (2021-04-14): Publication Date TERMS OF USE ============ Siemens Security Advisories are subject to the terms and conditions contained in Siemens' underlying license terms or other applicable agreements previously agreed to with Siemens (hereinafter "License Terms"). To the extent applicable to information, software or documentation made available in or through a Siemens Security Advisory, the Terms of Use of Siemens' Global Website (https://www.siemens.com/terms_of_use, hereinafter "Terms of Use"), in particular Sections 8-10 of the Terms of Use, shall apply additionally. In case of conflicts, the License Terms shall prevail over the Terms of Use. -----BEGIN PGP SIGNATURE----- iQIzBAEBCgAdFiEElTRCLAVwzKf/b8X80/SB6hFKr+QFAmB2MIAACgkQ0/SB6hFK r+SyHxAAvI3h/bHm1UrVV6rwSpr/VwBdB/pXsPogCrLpjkzOAVmH6MvJz5s9y8OK 9cnHNOk7e6hfhrQGKVkxDWs/2PCafE6A0yyZSpwn/uC6s/yo8nFqJGtxXiPR3tFM 8xHy2iPPHamXYL2UHelv/0MJ7OQVh/FJxARKgqp6sapuzyP3dd38LkLYoVq0BsW2 QAWl1/b1IhF+WwsMzA28+nWn7d+PWOXgKBNQvW+pCEApn/MKHezPAepq64r1UgUm q8LeaI4IG68UpMAZ/+4GPguOUmrn2WX6Q/wZB5tYM02K16B7q7Y9nmY3zYJeNw3r nt9wf1J2gyjO7q0PEmToFAM5V+0FQG/B+va8M2lVvXOPHb9eySDcErcYgA+cj/lW mMgwPu2ZkstWnbf3jXPXt6C4ZkGcWXLuGd2V8iwHVFn0w49cJ9Rd2UoiZC+3iBMw OKbAWGRaGbmYZhOelditPNHEyPF7obNKK6PbWrRFa1VHYTfdE8bdlh2kCFy2rG3a yirfEvNMePD3KYaavVn7NkI0ugA53nAGzm9q/2Z7Roi4U761rgMP21BHn8xFdEFc 8BatulkIHoJTW267XjFQwvTG3esblIXaJbJjHJnH1y5dYzY1qhLeAq2jlM+pkP14 jo2V9+98yYQJrEobR1HK68g+ytV3mJggqhprMgqHd98rDa1VOGM= =ZY28 -----END PGP SIGNATURE-----