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AUSCERT External Security Bulletin Redistribution
ESB-2023.1563
ICSA-23-073-02 Autodesk FBX SDK
15 March 2023
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AusCERT Security Bulletin Summary
---------------------------------
Product: Autodesk FBX SDK
Publisher: ICS-CERT
Operating System: Network Appliance
Resolution: Patch/Upgrade
CVE Names: CVE-2022-41304 CVE-2022-41303 CVE-2022-41302
Original Bulletin:
https://www.cisa.gov/news-events/ics-advisories/icsa-23-073-02
Comment: CVSS (Max): 7.8 CVE-2022-41304 (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-23-073-02)
Autodesk FBX SDK
Release Date
March 14, 2023
1. EXECUTIVE SUMMARY
o CVSS v3 7.8
o ATTENTION: Exploitable remotely/low attack complexity
o Vendor: Autodesk
o Equipment: FBX SDK
o Vulnerability: Out-of-bounds Read, Use After Free, Out-of-bounds Write
2. RISK EVALUATION
Successful exploitation of these vulnerabilities could lead to code execution
or a denial-of-service condition. Products using Autodesk FBX SDK software are
affected by these vulnerabilities.
3. TECHNICAL DETAILS
3.1 AFFECTED PRODUCTS
The following versions of the affected products are affected:
o Autodesk FBX SDK versions 2020 and prior
o Luxion KeyShot version 11.3 and prior
3.2 VULNERABILITY OVERVIEW
3.2.1 OUT-OF-BOUNDS READ CWE-125
An out-of-bounds read vulnerability in versions of Autodesk FBX SDK prior to
version 2020 could result in code execution or information disclosure through
maliciously crafted FBX files. This vulnerability, if exploited alongside other
vulnerabilities, could also result in code execution in the context of the
current process.
CVE-2022-41302 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 USE AFTER FREE CWE-416
Once opened, a maliciously crafted FBX file could leverage a use-after-free
vulnerability in versions of Autodesk FBX SDK prior to version 2020.
Exploitation of this vulnerability could cause the application to reference a
memory location controlled by an unauthorized third party and run arbitrary
code on the system.
CVE-2022-41303 has been assigned to this vulnerability. A CVSS v3 base score of
7.1 has been calculated; the CVSS vector string is ( AV:L/AC:L/PR:N/UI:R/S:U/
C:N/I:H/A:H ).
3.2.3 OUT-OF-BOUNDS WRITE CWE-787
An out-of-bounds write vulnerability in versions of Autodesk FBX SDK prior to
version 2020 could result in code execution or information disclosure through
maliciously crafted FBX files.
CVE-2022-41304 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: United States
3.4 RESEARCHER
Michael DePlante of Trend Micro Zero Day Initiative reported this vulnerability
to CISA.
4. MITIGATIONS
Luxion recommends users using KeyShot 11.3 and prior versions to update to
KeyShot 2023.1 .
Autodesk recommends users of the affected products apply the available hotfix
for their version via the Autodesk Desktop App.
o FBX SDK 2020.3.2
For more information, see the Autodesk Security Advisory .
CISA recommends users take defensive measures to minimize the risk of
exploitation of 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.
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