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# SSA-384879: Authentication Bypass Vulnerability in SIPORT MP

Publication Date:        2020-10-13
Last Update:             2020-10-13
Current Version:         1.0
CVSS v3.1 Base Score:    8.8

SUMMARY
=======

SIPORT MP version 3.2.1 fixes an authentication bypass vulnerability
which could enable an attacker to impersonate other users of the system
and perform administrative actions.

Siemens recommends to apply the update.


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


* SIPORT MP 
  - Affected versions:
       All versions < 3.2.1
  - Remediation:
       Update to version 3.2.1
  - Download:
       https://support.industry.siemens.com/cs/ww/en/view/109781856 (login
       required)


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

Siemens has identified the following specific workarounds and mitigations that
customers can apply to reduce the risk:

* For installations where the update to version 3.2.1 is not possible:
contact your local Siemens support for deployment-specific mitigation
measures
  


GENERAL SECURITY RECOMMENDATIONS
================================

As a general security measure Siemens strongly recommends to protect
network access to affected products with appropriate mechanisms. It is
advised to follow recommended security practices in order to run the
devices in a protected IT environment.

PRODUCT DESCRIPTION
===================

SIPORT is a comprehensive, modular and reliable system for access
control and time management within the Siveillance Access Suite.

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-2020-7591

  Vulnerable versions of the device could allow an authenticated attacker
  to impersonate other users of the system and perform (potentially
  administrative) actions on behalf of those users if the single sign-on
  feature ("Allow logon without password") is enabled.

  CVSS v3.1 Base Score: 8.8
  CVSS Vector:          CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:F/RL:O/RC:C
  CWE:                  CWE-603: Use of Client-Side Authentication




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 (2020-10-13): 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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