CVE-2021-34922: Bentley View JT File Parsing Use-After-Free Remote Code Execution Vulnerability
First published: Thu Jan 13 2022(Updated: )
This vulnerability allows remote attackers to execute arbitrary code on affected installations of Bentley View 10.15.0.75. 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 JT files. The issue results from the lack of validating the existence of an object prior to performing operations on the object. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-14900.
Credit: zdi-disclosures@trendmicro.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Bentley View | <10.16.02 | |
| Bentley MicroStation | <10.16.02 | |
| Bentley Systems |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2021-34922?
CVE-2021-34922 has been assigned a high severity rating due to its potential for remote code execution.
How do I fix CVE-2021-34922?
To mitigate CVE-2021-34922, upgrade your version of Bentley View or MicroStation to a version later than 10.16.02.
What types of attacks can exploit CVE-2021-34922?
CVE-2021-34922 can be exploited through malicious web pages or files that require user interaction.
Which software is affected by CVE-2021-34922?
CVE-2021-34922 affects Bentley View version 10.15.0.75 and Bentley MicroStation up to version 10.16.02.
Is user interaction required for CVE-2021-34922 to be exploited?
Yes, user interaction is required to exploit CVE-2021-34922, as the target must visit a malicious page or open a malicious file.
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