CVE-2021-34931: 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-14909.
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-2021-34931?
CVE-2021-34931 is classified as a high-severity vulnerability that can result in arbitrary code execution.
How do I fix CVE-2021-34931?
To fix CVE-2021-34931, you need to upgrade Bentley View and Bentley MicroStation to versions later than 10.16.02.
What software is affected by CVE-2021-34931?
CVE-2021-34931 affects Bentley View version 10.15.0.75 and earlier, as well as Bentley MicroStation up to version 10.16.02.
Is user interaction required for exploiting CVE-2021-34931?
Yes, exploiting CVE-2021-34931 requires user interaction, as the target must visit a malicious page or open a malicious file.
What type of vulnerability is CVE-2021-34931?
CVE-2021-34931 is a remote code execution vulnerability that allows attackers to execute arbitrary code on affected systems.
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