ICS Advisory (ICSA-22-041-07)

Siemens Solid Edge, JT2Go, and Teamcenter Visualization (Update C)

Click to Tweet.
Click to send to Facebook.
Click to Share.

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

  • CVSS v3 7.8
  • ATTENTION: Low attack complexity
  • Vendor: Siemens
  • Equipment: Solid Edge, JT2Go, and Teamcenter Visualization
  • 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. UPDATE INFORMATION

This updated advisory is a follow-up to the advisory update ICSA-22-041-07 Siemens Solid Edge, JT2Go, and Teamcenter Visualization (Update B) that was published April 14, 2022, on the ICS webpage at cisa.gov/ics.

3. RISK EVALUATION

Successful exploitation of these vulnerabilities could lead the application to crash or potentially lead to arbitrary code execution.

4. TECHNICAL DETAILS

4.1 AFFECTED PRODUCTS

Siemens reports these vulnerabilities affect the following visualization software products:

  • JT2Go: All versions prior to v13.2.0.7
  • Teamcenter Visualization v13.2: All versions prior to v13.2.0.7
  • Solid Edge SE2021: All versions prior to SE2021MP9
  • Solid Edge SE2022: All versions prior to SE2022MP1
  • Teamcenter Visualization v12.4: All versions prior to v12.4.0.13

--------- Begin Update C Part 1 of 2 ---------

  • Teamcenter Visualization v13.1: All versions prior to v13.1.0.8
  • Teamcenter Visualization v13.1: All versions prior to v13.1.0.9

--------- End Update C Part 1 of 2 ---------

  • Teamcenter Visualization v13.2: All versions prior to v13.2.0.7
  • 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

4.2 VULNERABILITY OVERVIEW

4.2.1    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).

4.2.2    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).

4.2.3    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).

4.2.4    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).

4.2.5    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).

4.3 BACKGROUND

  • CRITICAL INFRASTRUCTURE SECTORS: Critical Manufacturing
  • COUNTRIES/AREAS DEPLOYED: Worldwide
  • COMPANY HEADQUARTERS LOCATION: Germany

4.4 RESEARCHER

Mat Powell of Trend Micro’s Zero Day Initiative reported these vulnerabilities to Siemens and CISA.

5. 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.

--------- Begin Update C Part 2 of 2 ---------

--------- End Update C Part 2 of 2 ---------

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

  • 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 on the Siemens industrial security webpage.

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:

No known public exploits specifically target these vulnerabilities. These vulnerabilities are not exploitable remotely.


Contact Information

For any questions related to this report, please contact the CISA at:

Email: CISAservicedesk@cisa.dhs.gov
Toll Free: 1-888-282-0870

For industrial control systems cybersecurity information:  https://us-cert.cisa.gov/ics 
or incident reporting:  https://us-cert.cisa.gov/report

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.

This product is provided subject to this Notification and this Privacy & Use policy.

Please share your thoughts.

We recently updated our anonymous product survey; we'd welcome your feedback.