CVE-2021-34936: 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-14914.
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-2021-34936?
CVE-2021-34936 is classified as a critical severity vulnerability due to its potential for remote code execution.
How do I fix CVE-2021-34936?
To mitigate CVE-2021-34936, users should update Bentley View and MicroStation to versions later than 10.16.02.
What are the affected products for CVE-2021-34936?
CVE-2021-34936 affects Bentley View 10.15.0.75 and Bentley MicroStation up to version 10.16.02.
What kind of exploit is associated with CVE-2021-34936?
The exploit for CVE-2021-34936 requires user interaction, as the target must visit a malicious page or open a malicious file.
Can I still use my vulnerable version with CVE-2021-34936?
Using a vulnerable version identified by CVE-2021-34936 poses significant security risks and is not recommended.
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