Home / Common Vulnerability Exposure BE-2022-0019

BE-2022-0019: FBX File Parsing Out-of-bounds Read Vulnerabilities and Head Overflow in MicroStation and MicroStation-based applications

Bentley ID: BE-2022-0019
CVE ID: CVE-2022-42900
Severity: 7.83 (High)
CVSS v3.1: AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Publication date: 12th October 2022
Revision date: 13th October 2022 

Summary

MicroStation and MicroStation-based applications may be affected by out-of-bounds read vulnerabilities when opening maliciously crafted FBX files. Exploiting these vulnerabilities could lead to information disclosure and code execution.

Details

Using an affected version of MicroStation or MicroStation-based application to open a FBX file containing maliciously crafted data can force an out-of-bounds read or force execution of arbitrary code. Exploitation of these vulnerabilities within the parsing of FBX files could enable an attacker to read information or execute code in the context of the current process.

Affected Versions of Products

ProductAffected VersionFixed Version
MicroStation10.17.0.* and prior versions10.17.01.58 and more recent
Bentley View10.17.0.* and prior version10.17.01.19 and more recent

Recommended Mitigations

Bentley recommends updating to the latest versions of MicroStation and MicroStation-based applications. As a general best practice, it is also recommended to only open FBX files coming from trusted sources.

Acknowledgement

Thanks to Michael DePlante (@izobashi) of Trend Micro’s Zero Day Initiative

Revision History

DateDescription
11th July 2022First version of the advisory
13th October 2022Adding CVE number