Advisory Details

March 7th, 2022

Autodesk AutoCAD JT File Parsing Use-After-Free Remote Code Execution Vulnerability

ZDI-22-446
ZDI-CAN-15625

CVE ID CVE-2021-27042
CVSS SCORE 7.8, AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
AFFECTED VENDORS Autodesk
AFFECTED PRODUCTS AutoCAD
VULNERABILITY DETAILS

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Autodesk AutoCAD. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.

The specific flaw exists within the parsing of JT files. The issue results from the lack of validating the existence of an object prior to performing operations on the object. An attacker can leverage this vulnerability to execute code in the context of the current process.

ADDITIONAL DETAILS Autodesk has issued an update to correct this vulnerability. More details can be found at:
https://www.autodesk.com/trust/security-advisories/adsk-sa-2021-0004
DISCLOSURE TIMELINE
  • 2021-10-21 - Vulnerability reported to vendor
  • 2022-03-07 - Coordinated public release of advisory
CREDIT Mat Powell of Trend Micro Zero Day Initiative
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