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             AUSCERT External Security Bulletin Redistribution

                               ESB-2022.5800
   Advisory (icsa-22-314-09) Siemens Teamcenter Visualization and JT2Go
                             11 November 2022

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        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           Siemens Teamcenter Visualization
                   Siemens JT2Go
Publisher:         ICS-CERT
Operating System:  Network Appliance
Resolution:        Patch/Upgrade
CVE Names:         CVE-2022-41664 CVE-2022-41663 CVE-2022-41662
                   CVE-2022-41661 CVE-2022-41660 CVE-2022-39136

Original Bulletin: 
   https://us-cert.cisa.gov/ics/advisories/icsa-22-314-09

Comment: CVSS (Max):  7.8 CVE-2022-39136 (CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H)
         CVSS Source: ICS-CERT
         Calculator:  https://www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

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ICS Advisory (ICSA-22-314-09)

Siemens Teamcenter Visualization and JT2Go

Original release date: November 10, 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
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1. EXECUTIVE SUMMARY

  o CVSS v3 7.8
  o ATTENTION: Low attack complexity
  o Vendor: Siemens
  o Equipment: Teamcenter Visualization and JT2Go
  o Vulnerabilities: Heap-based Buffer Overflow, Out-of-bounds Write,
    Out-of-bounds Read, Use After Free, Stack-based Buffer Overflow

2. RISK EVALUATION

Successful exploitation of these vulnerabilities could allow an attacker to
execute arbitrary code in the context of the current process.

3. TECHNICAL DETAILS

3.1 AFFECTED PRODUCTS

The following software from Siemens is affected:

  o JT2Go: All versions prior to V14.1.0.4
  o Teamcenter Visualization V13.3: All versions (only affected by
    CVE-2022-39136)
  o Teamcenter Visualization V13.3: All versions prior to V13.3.0.7
  o Teamcenter Visualization V14.0: All versions prior to V14.0.0.3
  o Teamcenter Visualization V14.1: All versions prior to V14.1.0.4

3.2 VULNERABILITY OVERVIEW

3.2.1 HEAP-BASED BUFFER OVERFLOW CWE-122

The affected application is vulnerable to fixed-length heap-based buffer while
parsing specially crafted TIF files. An attacker could leverage this
vulnerability to execute code in the context of the current process.

CVE-2022-39136 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

The affected products contain an out-of-bounds write vulnerability when parsing
a CGM file. An attacker could leverage this vulnerability to execute code in
the context of the current process.

CVE-2022-41660 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 OUT-OF-BOUNDS READ CWE-125

The affected products contain an out-of-bounds read vulnerability when parsing
a CGM file. An attacker could leverage this vulnerability to execute code in
the context of the current process.

CVE-2022-41661 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 OUT-OF-BOUNDS READ CWE-125

The affected products contain an out-of-bounds read vulnerability when parsing
a CGM file. An attacker could leverage this vulnerability to execute code in
the context of the current process.

CVE-2022-41662 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 USE AFTER FREE CWE-416

The affected applications contain a use-after-free vulnerability that could be
triggered while parsing specially crafted CGM files. An attacker could leverage
this vulnerability to execute code in the context of the current process.

CVE-2022-41663 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 ).

3.2.6 STACK-BASED BUFFER OVERFLOW CWE-121

The affected application contains a stack-based buffer overflow vulnerability
potentially triggered while parsing specially crafted PDF files. This could
allow an attacker to execute code in the context of the current process.

CVE-2022-41664 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

Nafiez and Michael Heinzl reported these vulnerabilities to Siemens.

4. MITIGATIONS

Siemens released updates for the following products and recommends updating to
the latest versions:

  o JT2Go: Update to V14.1.0.4 or later version.
  o Teamcenter Visualization V14.1: Update to V14.1.0.4 or later version.
  o Teamcenter Visualization V14.0: U pdate to V14.0.0.3 or later version.
  o Teamcenter Visualization V13.3: Update to V13.3.0.7 or later version.
  o Teamcenter Visualization V13.3: Currently no fix is available for
    CVE-2022-39136.

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

  o Do not open untrusted CGM, TIF, or PDF files in JT2Go and Teamcenter
    Visualization.

As a general security measure, Siemens recommends protecting network access to
devices with appropriate mechanisms. To operate devices in a protected IT
environment, Siemens recommends configuring the environment according to
Siemens' Operational Guidelines for Industrial Security and following
recommendations in the product manuals.

Additional information on industrial security by Siemens can be found on the
Siemens industrial security webpage .

For further inquiries on security vulnerabilities in Siemens products and
solutions, users can contact the Siemens ProductCERT .

For more information see the associated Siemens security advisory SSA-120378 in
HTML and CSAF .

CISA recommends users take defensive measures to minimize the risk of
exploitation of 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 at cisa.gov/ics . Several CISA products detailing cyber
defense best 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 at cisa.gov/ics in the technical information paper,
ICS-TIP-12-146-01B--Targeted Cyber Intrusion Detection and Mitigation
Strategies .

Organizations observing suspected malicious activity should follow established
internal procedures and report findings to CISA for tracking and correlation
against other incidents.

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

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