Advisory Details

March 31st, 2023

Bentley View FBX File Parsing Out-Of-Bounds Read Information Disclosure Vulnerability

ZDI-23-345
ZDI-CAN-18492

CVE ID CVE-2022-43656
CVSS SCORE 3.3, AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
AFFECTED VENDORS Bentley
AFFECTED PRODUCTS View
VULNERABILITY DETAILS

This vulnerability allows remote attackers to disclose sensitive information 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 parsing of FBX files. Crafted data in an FBX file can trigger a read past the end of an allocated buffer. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of the current process.

ADDITIONAL DETAILS

Fixed in Bentley View version 17.1


DISCLOSURE TIMELINE
  • 2022-08-25 - Vulnerability reported to vendor
  • 2023-03-31 - Coordinated public release of advisory
CREDIT Michael DePlante (@izobashi) of Trend Micro's Zero Day Initiative
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