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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2022.3467 Advisory (icsa-22-195-09) Simcenter Femap and Parasolid 15 July 2022 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Simcenter Femap Parasolid Publisher: ICS-CERT Operating System: Network Appliance Windows UNIX variants (UNIX, Linux, OSX) Android iOS Resolution: Patch/Upgrade CVE Names: CVE-2022-34465 Original Bulletin: https://us-cert.cisa.gov/ics/advisories/icsa-22-195-09 Comment: CVSS (Max): 7.8 CVE-2022-34465 (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 - --------------------------BEGIN INCLUDED TEXT-------------------- ICS Advisory (ICSA-22-195-09) Simcenter Femap and Parasolid Original release date: July 14, 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: Simcenter Femap and Parasolid o Vulnerability: Out-of-bounds Read 2. RISK EVALUATION Successful exploitation of this vulnerability could allow an attacker to perform remote code execution in the context of the current process of the application through an out-of-bounds read. 3. TECHNICAL DETAILS 3.1 AFFECTED PRODUCTS The following versions of Simcenter Femap, an advanced simulation application, and Parasolid, a 3D geometric modeling tool, are affected: o Parasolid v33.1: All versions o Parasolid v34.0: All versions prior to v34.0.250 o Parasolid v34.1: All versions prior to v34.1.233 o Simcenter Femap: All versions 3.2 VULNERABILITY OVERVIEW 3.2.1 OUT-OF-BOUNDS READ CWE-125 The affected application contains an out-of-bounds read past the end of an allocated structure while parsing specially crafted NEU files. This could allow an attacker to execute code in the context of the current process (ZDI-CAN-15420). CVE-2022-34465 has been assigned to this vulnerability. A CVSS v3 base score of 7.8 has been assigned; 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 Siemens reported these vulnerabilities to CISA. 4. MITIGATIONS Siemens recommends updating to the latest version of its software where available: o Parasolid V34.0: Update to v34.0.250 or later o Parasolid V34.1: Update to v34.1.233 or later Siemens has identified the following specific workarounds and mitigations that customers can implement to reduce exploitation risk: o Do not open untrusted NEU files in Simcenter Femap or Parasolid. 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 more information see Siemens Security Advisory SSA-243317. CISA recommends users take defensive measures to minimize the risk of exploitation of this vulnerability these vulnerabilities. Specifically, users should: o Minimize network exposure for all control system devices and/or systems, and ensure they are not accessible from the Internet . o Locate control system networks and remote devices behind firewalls and isolate them from business networks. o When remote access is required, use secure methods, such as Virtual Private Networks (VPNs), recognizing VPNs may have vulnerabilities and should be updated to the most current version available. Also recognize VPN is only as secure as its connected devices. 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 this vulnerability. This vulnerability is 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. - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. If you do not know who that is, please send an email to auscert@auscert.org.au and we will forward your request to the appropriate person. NOTE: Third Party Rights This security bulletin is provided as a service to AusCERT's members. As AusCERT did not write the document quoted above, AusCERT has had no control over its content. The decision to follow or act on information or advice contained in this security bulletin is the responsibility of each user or organisation, and should be considered in accordance with your organisation's site policies and procedures. AusCERT takes no responsibility for consequences which may arise from following or acting on information or advice contained in this security bulletin. NOTE: This is only the original release of the security bulletin. It may not be updated when updates to the original are made. If downloading at a later date, it is recommended that the bulletin is retrieved directly from the author's website to ensure that the information is still current. Contact information for the authors of the original document is included in the Security Bulletin above. If you have any questions or need further information, please contact them directly. Previous advisories and external security bulletins can be retrieved from: https://www.auscert.org.au/bulletins/ =========================================================================== Australian Computer Emergency Response Team The University of Queensland Brisbane Qld 4072 Internet Email: auscert@auscert.org.au Facsimile: (07) 3365 7031 Telephone: (07) 3365 4417 (International: +61 7 3365 4417) AusCERT personnel answer during Queensland business hours which are GMT+10:00 (AEST). On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: https://auscert.org.au/gpg-key/ iQIVAwUBYtDVp8kNZI30y1K9AQi/lA/+J4WpVolL/LqRhWvq6Ga4WOpDoGChMTOn BCAJ/HfOv7YYAE1MnqLGbsNKRnMgy8X6JrFx+vc03Cvo9WhIkxULsCunPaytOyoU 0c1Gndlw1/4vNiDAsA8/Fkeg8e/o6O+C87e6Em5SCzrLxoo3U1ZQj16XnjV5jkdK st0HcOWy+9v/4YsvaMcNqkpAd6OBziXxJJk0gXyULmOVPgWX+qvKUUDB5gqVmaFI BWcwb2NxcSixrnGE9YHHimGfIR5XQioNevUwktyEY/7RqYSSk5oavexhI4nrDwLt IKVLUg0vCugCsNqUPzlwgI2QZq+5q1lgcC7qfUpBncbUtpe9mz3QJp+0yXDjeSYp nIkVCxIYJke7XYHEdE0/XuTxh3PBduAMtyUBmEFh4n/VN+vVlzuAmdplqBEe00MV gmEwEEHLiMFdSVwe1Iic60uILh6EdI+xE25AaABprvjdeFsCKS2OLm3kDKJn7aTE NxiGDvm463+lFJEp0NBvRaxa8Hm56tDYVMWsksGKA75TwaMcU1YkKRGeF+n8187N dw/clZRP2Jsjagn/TXDFX9LJXgjScVnkeB+XhMnXqhhfFPS3n0mmEq0cgYzdchkC ZQxRATmmuM13dU7dTXwxklNirBw5KfxiyqoxsAs4m3jZAp9J+DMi4eRfLHn5/V8z YIvSYUH3wBk= =RLKT -----END PGP SIGNATURE-----