CVE-2021-46571: Bentley View JT File Parsing Use-After-Free Remote Code Execution Vulnerability
First published: Fri Feb 18 2022(Updated: )
This vulnerability allows remote attackers to execute arbitrary code on affected installations of Bentley View 10.16.0.80. 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-15365.
Credit: zdi-disclosures@trendmicro.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Bentley Systems | ||
| Bentley MicroStation | <10.16.02 | |
| Bentley Systems | <=10.16.0.80 | |
| Bentley Systems | <10.16.02 |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2021-46571?
CVE-2021-46571 is considered a critical vulnerability due to its potential for remote code execution.
How does CVE-2021-46571 allow exploitation?
CVE-2021-46571 requires user interaction, where the target must visit a malicious page or open a malicious file for exploitation to occur.
Which software is affected by CVE-2021-46571?
CVE-2021-46571 affects Bentley View 10.16.0.80 and potentially other versions of Bentley MicroStation.
How do I fix CVE-2021-46571?
To remediate CVE-2021-46571, users should update to the latest version of Bentley View and MicroStation that addresses this vulnerability.
What are the potential impacts of CVE-2021-46571?
Successful exploitation of CVE-2021-46571 can lead to arbitrary code execution on the affected system.
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