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

# SSA-655554: Multiple Vulnerabilities in SIMATIC Energy Manager before V7.3 Update 1

Publication Date:        2022-04-12
Last Update:             2022-04-12
Current Version:         1.0
CVSS v3.1 Base Score:    10.0

SUMMARY
=======

SIMATIC Energy Manager is affected by multiple vulnerabilities that
could allow an attacker to gain local privilege escalation, local code
execution or remote code execution.

Siemens has released updates for the affected products and recommends to
update to the latest versions.


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


* SIMATIC Energy Manager Basic
  - Affected versions:
       All versions < V7.3 Update 1
  - Remediation:
       Update to V7.3 Update 1 or later version
       See further recommendations from section "Workarounds and Mitigations"
  - Download:
       https://support.industry.siemens.com/cs/ww/en/view/109808211/

* SIMATIC Energy Manager PRO
  - Affected versions:
       All versions < V7.3 Update 1
  - Remediation:
       Update to V7.3 Update 1 or later version
       See further recommendations from section "Workarounds and Mitigations"
  - Download:
       https://support.industry.siemens.com/cs/ww/en/view/109808211/


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

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

* Restrict access to the affected systems, especially to port 4444/tcp, to
trusted IP addresses only

* Enable encryption in the SIMATIC Energy Manager configuration


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

With SIMATIC Energy Manager, you can visualize energy flows and
consumption values in your processes in detail, assign them to the
relevant consumers or cost centers, and identify why changes have
occurred. Evaluate implemented efficiency measures, optimize your energy
procurement, and compare energy efficiency across plants and locations
- -- in a scalable, transparent, and future-proof way.

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-2022-23448

  Affected applications improperly assign permissions to critical
  directories and files used by the application processes. This could
  allow a local unprivileged attacker to achieve code execution with
  ADMINISTRATOR or even NT AUTHORITY/SYSTEM privileges.

  CVSS v3.1 Base Score: 7.3
  CVSS Vector:          CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
  CWE:                  CWE-732: Incorrect Permission Assignment for Critical Resource

* Vulnerability CVE-2022-23449

  A DLL Hijacking vulnerability could allow a local attacker to execute
  code with elevated privileges by placing a malicious DLL in one of the
  directories on the DLL search path.

  CVSS v3.1 Base Score: 7.3
  CVSS Vector:          CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
  CWE:                  CWE-427: Uncontrolled Search Path Element

* Vulnerability CVE-2022-23450

  The affected system allows remote users to send maliciously crafted
  objects. Due to insecure deserialization of user-supplied content by the
  affected software, an unauthenticated attacker could exploit this
  vulnerability by sending a maliciously crafted serialized object. This
  could allow the attacker to execute arbitrary code on the device with
  SYSTEM privileges.

  CVSS v3.1 Base Score: 10.0
  CVSS Vector:          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:P/RL:O/RC:C
  CWE:                  CWE-502: Deserialization of Untrusted Data


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

Siemens thanks the following parties for their efforts:

   * Noam Moshe from Claroty 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 (2022-04-12): 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.

Copyright: Siemens 2022
-----BEGIN PGP SIGNATURE-----
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=9AJw
-----END PGP SIGNATURE-----