CVE-2021-34933: 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-14911.
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-2021-34933?
CVE-2021-34933 has been classified with a high severity level due to its potential for remote code execution.
How do I fix CVE-2021-34933?
To fix CVE-2021-34933, users should upgrade to Bentley View version 10.16.02 or later.
What type of attacks can be executed through CVE-2021-34933?
CVE-2021-34933 allows remote attackers to execute arbitrary code by inducing user interaction with malicious files or pages.
Which software is affected by CVE-2021-34933?
CVE-2021-34933 affects Bentley View versions up to 10.16.02 and Bentley MicroStation versions up to 10.16.02.
Does CVE-2021-34933 require user interaction to be exploited?
Yes, CVE-2021-34933 requires user interaction as the target must visit a malicious page or open a malicious file.
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