CVE-2021-34909: 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-14882.
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-2021-34909?
CVE-2021-34909 has been assigned a moderate severity level due to its potential for remote code execution if exploited.
How do I fix CVE-2021-34909?
To fix CVE-2021-34909, update Bentley View or Bentley MicroStation to a version higher than 10.16.02.
What types of attacks can CVE-2021-34909 facilitate?
CVE-2021-34909 can facilitate remote code execution attacks that require user interaction with a malicious page or file.
Which versions of Bentley software are affected by CVE-2021-34909?
CVE-2021-34909 affects Bentley View version 10.15.0.75 and Bentley MicroStation up to version 10.16.02.
Is user interaction required to exploit CVE-2021-34909?
Yes, exploitation of CVE-2021-34909 requires the victim to visit a malicious web page or open a malicious file.
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