Advisory Details

April 12th, 2022

Bentley MicroStation CONNECT DGN File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability

ZDI-22-611
ZDI-CAN-16469

CVE ID CVE-2022-28644
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 MicroStation CONNECT
VULNERABILITY DETAILS

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Bentley MicroStation CONNECT. 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 DGN files. Crafted data in a DGN file can trigger a write past the end of an allocated buffer. 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-2022-0004
DISCLOSURE TIMELINE
  • 2022-02-01 - Vulnerability reported to vendor
  • 2022-04-12 - Coordinated public release of advisory
CREDIT Mat Powell of Trend Micro Zero Day Initiative
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