Autodesk ID: ADSK-SA-2021-0009
Product, Service, Component: Autodesk® Navisworks
Impact: Out-of-bounds Read, Out-of-bounds Write
Severity: High
Original Publish: 9/13/2021
Last Revised: 7/20/2022
AUTODESK TRUST CENTER
Security advisory
Advisories are used to communicate information related to vulnerabilities identified with Autodesk® products and services. This includes any fixes or workarounds that are applicable to the affected product.
DWG Vulnerabilities in the Autodesk® Navisworks Desktop software
Severity |
CVSS 3.0 Score |
Impact |
|---|---|---|
Low |
0.1 - 3.9 |
A vulnerability where scope and impact of exploitation is restricted and the ability to exploit is extremely difficult. |
Medium |
4.0 - 6.9 |
A vulnerability where exploitation is mitigated by factors such as difficulty to exploit, default configuration or ease of identification. |
High |
7.0 - 8.9 |
A vulnerability, which if exploited, would directly impact the confidentiality, integrity or availability of user’s data or processing resources. |
Critical |
9.0 - 10 |
A vulnerability, which if exploited, would allow remote execution of malicious code without user action. |
Summary
Applications and Services that utilize Autodesk Navisworks may be affected by Out-of-bounds Read and Out-of-bounds Write vulnerabilities. Exploitation of these vulnerabilities could lead to code execution.
Description
The details of the vulnerabilities are as follows:
1) CVE-2021-40155 - A maliciously crafted DWG file in Autodesk Navisworks 2019, 2020, 2021, 2022 can be forced to read beyond allocated boundaries when parsing the DWG files. This vulnerability can be exploited to execute arbitrary code.
2) CVE-2021-40156 - A maliciously crafted DWG file in Autodesk Navisworks 2019, 2020, 2021, 2022 can be forced to write beyond allocated boundaries when parsing the DWG files. This vulnerability can be exploited to execute arbitrary code.
Affected Products
Item |
Impacted Versions |
Mitigated Versions |
Update Source |
|---|---|---|---|
Autodesk® Navisworks |
2022, 2021, 2020, 2019 |
2022.1, 2021.5, 2020.5, 2019.7 |
Autodesk Desktop App, or Accounts Portal |
*Note: Product list table contents subject to change
Recommendations
Autodesk highly recommends customers download and install the latest version of Autodesk® Navisworks 2022 Update 2, which is available via the Autodesk Desktop App or Accounts Portal. This version of Autodesk Navisworks includes security updates that address the DWG file vulnerabilities. As a general best practice, we also recommend that customers only open DWG files from trusted sources. More information is available on the Autodesk Navisworks forum page.
Customers using previous versions that no longer qualify for full support should plan to upgrade to a supported version as soon as possible to avoid downtime and potential security vulnerabilities. Visit the Autodesk Knowledge Network for more information about previous version support.
Acknowledgements
We would like to thank the following for reporting the relevant issues and for working with Autodesk to help protect our customers:
- Michael DePlante (@izobashi) of Trend Micro Zero Day Initiative for reporting CVE-2021-40155 and CVE-2021-40156.
Revision History
Revision |
Date |
Description |
|---|---|---|
1.0 |
9/13/2021 |
Initial Release of the Security Advisory |
1.1 |
9/27/2021 |
Update to Recommendations |
1.2 |
3/31/2022 |
Update to the Product Table |
1.3 |
4/28/2022 |
Update to the Product Table to include Navisworks 2020 update |
1.4 |
5/25/2022 |
Update to the Product Table to include 2019 update |
1.5 |
7/20/2022 |
Update to the Product Table to include 2021 update |
Disclaimer
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