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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.

MAXScript exploit in Autodesk® 3ds Max

Autodesk ID: ADSK-SA-2019-0005

Product, Service, Component: Autodesk® 3ds Max

Impact: Code Execution

Severity: High

Original Publish: 09/01/2020

Last Revised: 09/01/2020

Severity CVSS 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

A variant of a MAXScript exploit was identified and a fix has been made available. The exploit can execute malicious code that can corrupt the 3ds Max environment, cause data loss and instability, as well as spread to other systems.

Description

The 3rd-party MAXScript exploit, ALC2 (variant of ALC, CRP and ADLS) can corrupt 3ds Max software’s settings, run malicious code, and be propagated to other MAX files (*.max) on a Windows® system if scene files containing the script are loaded into 3ds Max.The fix is included in the latest version of 3ds Max Security Tools which is available at the Autodesk App Store.

Affected Products

Item: Autodesk 3ds Max

Impacted Versions: 2020, 2019, 2018, 2017, 2016, 2015

Mitigated Versions: 2020, 2019, 2018, 2017, 2016, 2015

Update Source: Autodesk App Store

Recommendations

Autodesk highly recommends that customers download and install the updated 3ds Max Security Tool from the Autodesk App Store to protect themselves from the above-described exploits.

Related Information

More information on the ALC, CRP, ADLS, and ALC2 exploits can be found on our Autodesk Knowledge Network.

Revision History

Revision: 1.0

Date: 09/01/2020

Description: Initial Release

 

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