-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA512

# SSA-562051: Cross-Site Scripting Vulnerability in Polarion ALM

Publication Date:        2022-03-08
Last Update:             2022-04-12
Current Version:         1.1
CVSS v3.1 Base Score:    6.5

SUMMARY
=======

The Subversion Webclient in Polarion ALM contains a cross-site scripting
vulnerability, that could be triggered by an attacker by sending crafted
links to an administrator user of Polarion ALM.

Siemens has released an update for the Subversion Webclient in Polarion
ALM and recommends to update to the latest version.


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


* Polarion ALM
  - Affected versions:
       All versions < V21 R2 P2
  - Remediation:
       Update to V21 R2 P2 or later version
       See further recommendations from section "Workarounds and Mitigations"
  - Download:
       https://support.sw.siemens.com/knowledge-base/PL8613685

* Polarion WebClient for SVN
  - Affected versions:
       All versions
  - Remediation:
       Currently no fix is planned
       See 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 open links from untrusted sources while working on Polarion
Subversion webclient


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
===================

Polarion ALM is an application lifecycle management solution that
improves software development processes with a single, unified solution
for requirements, coding, testing, and release.

Polarion WebClient for SVN, one of several free Subversion tools from
Polarion Software, is a SVN client that enables Subversion users to work
with SVN repositories using a web browser.
(https://polarion.plm.automation.siemens.com/products/svn/svn_webclient)

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-2021-44478

  A cross-site scripting is present due to improper neutralization of data
  sent to the web page through the SVN WebClient in the affected product.
  
  An attacker could exploit this to execute arbitrary code and extract
  sensitive information by sending a specially crafted link to users with
  administrator privileges.

  CVSS v3.1 Base Score: 6.5
  CVSS Vector:          CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N/E:P/RL:O/RC:C
  CWE:                  CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site
Scripting')


ACKNOWLEDGMENTS
===============

Siemens thanks the following parties for their efforts:

   * Nicolas Briand from Thales Digital Factory 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 (2022-03-08): Publication Date
V1.1 (2022-04-12): Corrected list of affected versions; clarified difference between
Polarion ALM and the freeware (WebClient for SVN)

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.

Copyright: Siemens 2022
-----BEGIN PGP SIGNATURE-----
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=hLpV
-----END PGP SIGNATURE-----