CVE-2021-34892: Bentley View JT File Parsing Stack-based Buffer Overflow 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 proper validation of the length of user-supplied data prior to copying it to a stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-14845.
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 CVE-2021-34892?
CVE-2021-34892 is a vulnerability that allows remote attackers to execute arbitrary code on affected installations of Bentley View 10.15.0.75.
How can this vulnerability be exploited?
This vulnerability can be exploited by remote attackers through user interaction, such as visiting a malicious page or opening a malicious file.
What is the severity of CVE-2021-34892?
The severity of CVE-2021-34892 is high with a CVSS score of 7.8.
Which software installations are affected by CVE-2021-34892?
CVE-2021-34892 affects installations of Bentley View 10.15.0.75 and up to version 10.16.02 of Bentley View and Bentley MicroStation.
How can I mitigate CVE-2021-34892?
To mitigate CVE-2021-34892, users should update their installations of Bentley View and Bentley MicroStation to a version beyond 10.16.02.
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