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AUSCERT External Security Bulletin Redistribution
ESB-2022.4037
Advisory (icsa-22-223-02) Siemens Teamcenter
12 August 2022
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AusCERT Security Bulletin Summary
---------------------------------
Product: Siemens Teamcenter
Publisher: ICS-CERT
Operating System: Network Appliance
Resolution: Patch/Upgrade
CVE Names: CVE-2022-34661 CVE-2022-34660
Original Bulletin:
https://us-cert.cisa.gov/ics/advisories/icsa-22-223-02
Comment: CVSS (Max): 7.6 CVE-2022-34660 (CVSS:3.0/AV:N/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:H)
CVSS Source: ICS-CERT
Calculator: https://www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:N/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:H
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ICS Advisory (ICSA-22-223-02)
Siemens Teamcenter
Original release date: August 11, 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 7.6
o ATTENTION: Exploitable remotely/low attack complexity/public exploits are
available
o Vendor: Siemens
o Equipment: Teamcenter
o Vulnerabilities: Command Injection, Infinite Loop
2. RISK EVALUATION
Successful exploitation of these vulnerabilities could lead to command
injection and denial-of-service condition.
3. TECHNICAL DETAILS
3.1 AFFECTED PRODUCTS
The following versions of Teamcenter, a product lifecycle management software,
are affected:
o Teamcenter v12.4: All versions prior to v12.4.0.15
o Teamcenter v13.0: All versions prior to v13.0.0.10
o Teamcenter v13.1: All versions prior to v13.1.0.10
o Teamcenter v13.2: All versions prior to v13.2.0.9
o Teamcenter v13.3: All versions prior to v13.3.0.5
o Teamcenter v14.0: All versions prior to v14.0.0.2
3.2 VULNERABILITY OVERVIEW
3.2.1 IMPROPER NEUTRALIZATION OF SPECIAL ELEMENTS USED IN A COMMAND ('COMMAND
INJECTION') CWE-77
The affected product is vulnerable to command injection, which may allow an
attacker to remotely execute arbitrary code.
CVE-2022-34660 has been assigned to this vulnerability. A CVSS v3 base score of
7.6 has been assigned; the CVSS vector string is ( AV:N/AC:H/PR:H/UI:R/S:C/C:H/
I:H/A:H ).
3.2.2 LOOP WITH UNREACHABLE EXIT CONDITION ('INFINITE LOOP') CWE-835
The affected product is vulnerable to an attack that causes the product to
enter an infinite loop and use CPU cycles. This could allow an attacker to
cause a denial-of-service condition.
CVE-2022-34661 has been assigned to this vulnerability. A CVSS v3 base score of
7.5 has been assigned; the CVSS vector string is ( AV:N/AC:L/PR:N/UI:N/S:U/C:N/
I:N/A:H ).
3.3 BACKGROUND
o CRITICAL INFRASTRUCTURE SECTORS: Multiple Sectors
o COUNTRIES/AREAS DEPLOYED: Worldwide
o COMPANY HEADQUARTERS LOCATION: Germany
3.4 RESEARCHER
Han Lee from Apple Information Security reported these vulnerabilities to
Siemens.
4. MITIGATIONS
Siemens has identified the following workarounds and mitigations users can
apply to reduce risk:
o Harden the application's host to prevent local access by untrusted or
unauthorized personnel.
o Limit access to port 4544/tcp to known, trusted IP addresses with a
firewall.
As a general security measure, Siemens recommends protecting network access to
devices with appropriate mechanisms. To operate the 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.
For additional information, please refer to Siemens Security Advisory
SSA-759952
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.
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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