Advisory Details

December 8th, 2021

Bentley View 3DS File Parsing Memory Corruption Remote Code Execution Vulnerability

ZDI-21-1461
ZDI-CAN-14736

CVE ID CVE-2021-34874
CVSS SCORE 7.8, AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
AFFECTED VENDORS Bentley
AFFECTED PRODUCTS View
VULNERABILITY DETAILS

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Bentley View. 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 processing of 3DS files. The issue results from the lack of proper validation of user-supplied data, which can result in a memory corruption condition. An attacker can leverage this vulnerability to execute code in the context of the current process.

ADDITIONAL DETAILS Bentley has issued an update to correct this vulnerability. More details can be found at:
https://www.bentley.com/en/common-vulnerability-exposure/BE-2021-0004
DISCLOSURE TIMELINE
  • 2021-08-11 - Vulnerability reported to vendor
  • 2021-12-08 - Coordinated public release of advisory
CREDIT Francis Provencher {PRL}
BACK TO ADVISORIES