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# SSA-568969: Insecure Storage of Sensitive Information in Spectrum Power™ 4

Publication Date:        2020-09-08
Last Update:             2020-09-08
Current Version:         1.0
CVSS v3.1 Base Score:    3.7

SUMMARY
=======

Vulnerabilities in Spectrum Power™ 4 could allow an unauthorized
attacker to retrieve a list of software users, or in certain cases to
list the contents of a directory.

Siemens has released updates and configuration recommendations for
Spectrum Power™ 4 in order to mitigate the issues.


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


* Spectrum Power™ 4 
  - Affected versions:
       All versions < V4.70 SP8
  - Remediation:
       Please contact your local Siemens representative.


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

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

* Siemens offers mitigations for customers. Please contact your local
Siemens representative for further information.
  


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

Operators of critical power systems (e.g. TSOs or DSOs) worldwide are
usually required by regulations to build resilience into the power grids
by applying multi-level redundant secondary protection schemes. It is
therefore recommended that the operators check whether appropriate
resilient protection measures are in place. The risk of cyber incidents
impacting the grid's reliability can thus be minimized by virtue of the
grid design.

Siemens strongly recommends applying the provided security updates using
the corresponding tooling and documented procedures made available with
the product. If supported by the product, an automated means to apply
the security updates across multiple product instances may be used.
Siemens strongly recommends prior validation of any security update
before being applied, and supervision by trained staff of the update
process in the target environment.

As a general security measure Siemens strongly recommends to protect
network access with appropriate mechanisms (e.g. firewalls,
segmentation, VPN). It is advised to configure the environment according
to our operational guidelines in order to run the devices in a protected
IT environment.

Recommended security guidelines to Digital Grid Products can be found
at:

https://www.siemens.com/gridsecurity

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

Spectrum Power™ 4 provides basic components for SCADA, communications,
and data modeling for control and monitoring systems. Application suites
can be added to optimize network and generation management for all areas
of energy management.

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-2020-15784

  Insecure storage of sensitive information in the configuration files
  could allow the retrieval of user names.

  CVSS v3.1 Base Score: 3.7
  CVSS Vector:          CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N/E:P/RL:O/RC:C
  CWE:                  CWE-312: Cleartext Storage of Sensitive Information

* Vulnerability CVE-2020-15790

  If configured in an insecure manner, the web server might be susceptible
  to a directory listing attack.

  CVSS v3.1 Base Score: 3.7
  CVSS Vector:          CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N/E:P/RL:O/RC:C
  CWE:                  CWE-548: Exposure of Information Through Directory Listing


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

Siemens thanks the following parties for their efforts:

   * Can Demirel from Cyberwise 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 (2020-09-08): 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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