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AUSCERT External Security Bulletin Redistribution
ESB-2022.0668
Advisory (icsa-22-041-07-1) Siemens Solid Edge, JT2Go, and
Teamcenter Visualization
16 February 2022
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AusCERT Security Bulletin Summary
---------------------------------
Product: Siemens Solid Edge, JT2Go, and Teamcenter Visualization
Publisher: ICS-CERT
Operating System: Windows
Network Appliance
Resolution: Patch/Upgrade
CVE Names: CVE-2021-44018 CVE-2021-44016 CVE-2021-44000
CVE-2021-43336 CVE-2021-38405
Original Bulletin:
https://us-cert.cisa.gov/ics/advisories/icsa-22-041-07-1
Comment: CVSS (Max): 7.8 CVE-2021-43336 (CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H)
CVSS Source: ICS-CERT
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ICS Advisory (ICSA-22-041-07)
Siemens Solid Edge, JT2Go, and Teamcenter Visualization
Original release date: February 10, 2022 | Last revised: February 12, 2022
Legal Notice
All information products included in https://us-cert.cisa.gov/ics are provided
"as is" for informational purposes only. The Department of Homeland Security
(DHS) does not provide any warranties of any kind regarding any information
contained within. DHS does not endorse any commercial product or service,
referenced in this product or otherwise. Further dissemination of this product
is governed by the Traffic Light Protocol (TLP) marking in the header. For more
information about TLP, see https://us-cert.cisa.gov/tlp/ .
1. EXECUTIVE SUMMARY
o CVSS v3 7.8
o ATTENTION: Low attack complexity
o Vendor: Siemens
o Equipment: Solid Edge, JT2Go, and Teamcenter Visualization
o Vulnerabilities: Improper Restriction of Operations within the Bounds of a
Memory Buffer, Out-of-bounds Write, Heap-based Buffer Overflow,
Out-of-bounds Read
2. RISK EVALUATION
Successful exploitation of these vulnerabilities could lead the application to
crash or potentially lead to arbitrary code execution.
3. TECHNICAL DETAILS
3.1 AFFECTED PRODUCTS
Siemens reports these vulnerabilities affect the following visualization
software products:
o JT2Go: All versions
o Solid Edge SE2021: All versions prior to SE2021MP9
o Solid Edge SE2022: All versions prior to SE2022MP1
o Teamcenter Visualization v12.4: All versions
o Teamcenter Visualization v13.1: All versions
o Teamcenter Visualization v13.1: All versions prior to v13.1.0.8
o Teamcenter Visualization v13.2: All versions
o Teamcenter Visualization v13.3: All versions
o Teamcenter Visualization v13.3: All versions prior to v13.3.0.1
Not all the above products are affected by all the vulnerabilities below. For a
complete list of how they correspond, please see Siemens security advisory
SSA-301589
3.2 VULNERABILITY OVERVIEW
3.2.1 IMPROPER RESTRICTION OF OPERATIONS WITHIN THE BOUNDS OF A MEMORY BUFFER
CWE-119
The Datalogics APDFL library used in affected products is vulnerable to memory
corruption condition while parsing specially crafted PDF files. An attacker
could leverage this vulnerability to execute code in the context of the current
process.
CVE-2021-38405 has been assigned to this vulnerability. A CVSS v3 base score of
7.8 has been calculated; the CVSS vector string is ( AV:L/AC:L/PR:N/UI:R/S:U/
C:H/I:H/A:H ).
3.2.2 OUT-OF-BOUNDS WRITE CWE-787
Open Design Alliance Drawings SDK before 2022.11 used in affected products
contains an out-of-bounds write vulnerability when parsing a DXF file. An
attacker can leverage this vulnerability to execute code in the context of the
current process.
CVE-2021-43336 has been assigned to this vulnerability. A CVSS v3 base score of
7.8 has been calculated; the CVSS vector string is ( AV:L/AC:L/PR:N/UI:R/S:U/
C:H/I:H/A:H ).
3.2.3 HEAP-BASED BUFFER OVERFLOW CWE-122
The plmxmlAdapterSE70.dll contains an out-of-bounds write past the fixed-length
heap-based buffer while parsing specially crafted PAR files. This could allow
an attacker to execute code in the context of the current process.
CVE-2021-44000 has been assigned to this vulnerability. A CVSS v3 base score of
7.8 has been calculated; the CVSS vector string is ( AV:L/AC:L/PR:N/UI:R/S:U/
C:H/I:H/A:H ).
3.2.4 IMPROPER RESTRICTION OF OPERATIONS WITHIN THE BOUNDS OF A MEMORY BUFFER
CWE-119
The plmxmlAdapterSE70.dll library is vulnerable to memory corruption condition
while parsing specially crafted PAR files. An attacker could leverage this
vulnerability to execute code in the context of the current process.
CVE-2021-44016 has been assigned to this vulnerability. A CVSS v3 base score of
7.8 has been calculated; the CVSS vector string is ( AV:L/AC:L/PR:N/UI:R/S:U/
C:H/I:H/A:H ).
3.2.5 OUT-OF-BOUNDS READ CWE-125
The plmxmlAdapterSE70.dll library is vulnerable to memory corruption condition
while parsing specially crafted PAR files. An attacker could leverage this
vulnerability to execute code in the context of the current process.
CVE-2021-44018 has been assigned to this vulnerability. A CVSS v3 base score of
7.8 has been calculated; the CVSS vector string is ( AV:L/AC:L/PR:N/UI:R/S:U/
C:H/I:H/A:H ).
3.3 BACKGROUND
o CRITICAL INFRASTRUCTURE SECTORS: Critical Manufacturing
o COUNTRIES/AREAS DEPLOYED: Worldwide
o COMPANY HEADQUARTERS LOCATION: Germany
3.4 RESEARCHER
Mat Powell of Trend Micro's Zero Day Initiative reported these vulnerabilities
to Siemens and CISA.
4. MITIGATIONS
Siemens has released updates for some of the affected products and recommends
updating to the latest versions. Siemens is preparing further updates and
recommends specific countermeasures for products where updates are not yet
available.
o Solid Edge SE2021: Update to SE2021MP9 or later version
o Solid Edge SE2022: Update to SE2022MP1 or later version
o Teamcenter Visualization v13.1: Update to v13.1.0.8 or later version
o Teamcenter Visualization v13.3: Update to v13.3.0.1 or later version
Siemens has identified the following specific workarounds and mitigations users
can apply to reduce the risk:
o Avoid opening untrusted files from unknown sources in affected products.
As a general security measure, Siemens strongly recommends protecting network
access to devices with appropriate mechanisms. In order to operate the devices
in a protected IT environment, Siemens recommends configuring the environment
according to Siemens' operational guidelines for 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
Please see Siemens security advisory SSA-301589 for more information.
CISA recommends users take defensive measures to minimize the risk of
exploitation o these vulnerabilities. CISA reminds organizations to perform
proper impact analysis and risk assessment prior to deploying defensive
measures.
CISA also provides a section for control systems security recommended practices
on the ICS webpage on cisa.gov . Several recommended practices are available
for reading and download, including Improving Industrial Control Systems
Cybersecurity with Defense-in-Depth Strategies .
Additional mitigation guidance and recommended practices are publicly available
on the ICS webpage on cisa.gov in the Technical Information Paper,
ICS-TIP-12-146-01B--Targeted Cyber Intrusion Detection and Mitigation
Strategies .
Organizations observing any suspected malicious activity should follow their
established internal procedures and report their findings to CISA for tracking
and correlation against other incidents.
CISA also recommends users take the following measures to protect themselves
from social engineering attacks:
o Do not click web links or open unsolicited attachments in email messages.
o Refer to Recognizing and Avoiding Email Scams for more information on
avoiding email scams.
o Refer to Avoiding Social Engineering and Phishing Attacks for more
information on social engineering attacks.
No known public exploits specifically target these vulnerabilities. These
vulnerabilities are not exploitable remotely.
For any questions related to this report, please contact the CISA at:
Email: CISAservicedesk@cisa.dhs.gov
Toll Free: 1-888-282-0870
CISA continuously strives to improve its products and services. You can help by
choosing one of the links below to provide feedback about this product.
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