SIEMENS-SINEMA Remote Connect 1.0 SP3 HF1 Open Redirection

`SEC Consult Vulnerability Lab Security Advisory < 20220209-0 >  
=======================================================================  
title: Open Redirect in Login Page  
product: SIEMENS-SINEMA Remote Connect  
vulnerable version: V1.0 SP3 HF1  
fixed version: V2.0 has been out since April, 2019  
CVE number: CVE-2022-23102  
impact: Low  
homepage: https://www.siemens.com  
found: 2021-11-18  
by: A. Ovsyannikova (Office Moscow)  
SEC Consult Vulnerability Lab  
  
An integrated part of SEC Consult, an Atos company  
Europe | Asia | North America  
  
https://www.sec-consult.com  
  
=======================================================================  
  
Vendor description:  
-------------------  
"Siemens is a technology company focused on industry, infrastructure, transport, and healthcare.  
From more resource-efficient factories, resilient supply chains, and smarter buildings and grids,  
to cleaner and more comfortable transportation as well as advanced healthcare, we create  
technology with purpose adding real value for customers. By combining the real and the digital  
worlds, we empower our customers to transform their industries and markets, helping them  
to transform the everyday for billions of people."  
  
Source: https://www.siemens.com  
  
  
Business recommendation:  
------------------------  
The vendor provides a patched version for the affected product since April 2019, but the  
security notes have been published now.  
  
An in-depth security analysis performed by security professionals is highly advised, as the  
software may be affected from further security issues.  
  
  
Vulnerability overview/description:  
-----------------------------------  
1) Open Redirect in Login Page (CVE-2022-23102)  
An open redirect vulnerability can be triggered by luring a user to authenticate to a  
SIEMENS-SINEMA Remote Connect device by clicking on a crafted link.  
By abusing this vulnerability, an attacker could steal logon credentials with a specially  
crafted phishing page or exploit browser vulnerabilities.  
  
  
Proof of concept:  
-----------------  
1) Open Redirect in Login Page (CVE-2022-23102)  
After a successful login of the victim, the user will be redirected to https://www.sec-consult.com  
when the following link is being clicked:  
  
https://$IP/wbm/login/?next=https://www.sec-consult.com  
  
  
Vulnerable / tested versions:  
-----------------------------  
The following version has been tested and found to be vulnerable:  
* SIEMENS-SINEMA Remote Connect Client V1.0 SP3 HF1  
  
  
Vendor contact timeline:  
------------------------  
2021-12-13: Contacting CERT through [email protected] and requested support for the  
disclosure process.  
2021-12-15: Siemens opened case #32494 to track this issue.  
2022-01-12: Security contact informed us, that some vulnerabilities were fixed by the vendor  
back in 2019 but they will issue a CVE and an advisory for 8th Feb 2022.  
2022-01-18: Siemens has reserved the CVE number CVE-2022-23102.  
2022-02-08: Release of Siemens advisory CVE-2022-23102.  
2022-02-09: Release of security advisory.  
  
  
Solution:  
---------  
The vendor provides a patched version V2.0 for the affected product since April 2019, but the  
security notes have been published now at:  
  
https://cert-portal.siemens.com/productcert/pdf/ssa-654775.pdf  
  
  
Workaround:  
-----------  
None  
  
  
Advisory URL:  
-------------  
https://sec-consult.com/vulnerability-lab/  
  
  
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~  
  
SEC Consult Vulnerability Lab  
  
SEC Consult, an Atos company  
Europe | Asia | North America  
  
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and valid recommendation about the risk profile of new technologies.  
  
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EOF A.Ovsyannikova / @2022  
  
  
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