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# SSA-522654: Privilege Escalation Vulnerability in Mendix SAML Module

Publication Date:        2021-06-08
Last Update:             2021-06-08
Current Version:         1.0
CVSS v3.1 Base Score:    8.1

SUMMARY
=======

The latest update of Mendix SAML module fixes a privilege escalation
vulnerability.

Mendix has released an update for the Mendix SAML module and recommends
to update to the latest version.


AFFECTED PRODUCTS AND SOLUTION
==============================


* Mendix SAML Module 
  - Affected versions:
       All versions < V2.1.2
  - Remediation:
       Update to V2.1.2 or later version
  - Download:
       https://marketplace.mendix.com/link/component/1174


WORKAROUNDS AND MITIGATIONS
===========================


Siemens has not identified any additional specific mitigations or workarounds.
Please follow "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
===================

The Mendix SAML Module allows you to use SAML to authenticate your users
in your cloud application. This module can communicate with any identity
provider that supports SAML2.0 or Shibboleth.

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-2021-33712

  The configuration of the SAML module does not properly check various
  restrictions and validations imposed by an identity provider.
  
  This could allow a remote authenticated attacker to escalate 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-345: Insufficient Verification of Data Authenticity




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 (2021-06-08): 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.
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