CVE-2021-34940: Bentley View JT File Parsing Out-Of-Bounds Write 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. Crafted data in a JT file can trigger a write past the end of an allocated buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-15039.
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-2021-34940?
CVE-2021-34940 is classified as a high severity vulnerability that allows remote code execution.
How do I fix CVE-2021-34940?
To address CVE-2021-34940, upgrade Bentley View and MicroStation to version 10.16.02 or later.
What software is affected by CVE-2021-34940?
CVE-2021-34940 affects Bentley View version up to 10.15.0.75 and Bentley MicroStation version up to 10.15.0.75.
What kind of attack vector is present in CVE-2021-34940?
CVE-2021-34940 can be exploited through user interaction, requiring a visit to a malicious page or opening a malicious file.
What are the potential impacts of CVE-2021-34940?
The exploitation of CVE-2021-34940 may allow attackers to execute arbitrary code on the affected systems.
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