Advisory Details

June 22nd, 2021

Autodesk AutoCAD DWG File Parsing Out-Of-Bounds Read Remote Code Execution Vulnerability

ZDI-21-710
ZDI-CAN-12118

CVE ID CVE-2021-27040
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 DWG files. The issue results from the lack of proper validation of user-supplied data, which can result in a read past the end of an allocated data structure. 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
  • 2021-01-21 - Vulnerability reported to vendor
  • 2021-06-22 - Coordinated public release of advisory
CREDIT Michael DePlante (@izobashi) of Trend Micro's Zero Day Initiative
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