CVE-2021-46634: Bentley MicroStation CONNECT JT File Parsing Out-Of-Bounds Write 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 MicroStation CONNECT 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. 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-15464.
Credit: zdi-disclosures@trendmicro.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Bentley MicroStation | <10.16.02 | |
| Bentley MicroStation CONNECT | <=10.16.0.80 | |
| Bentley View | <10.16.02 | |
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Reference Links
Frequently Asked Questions
What is CVE-2021-46634?
CVE-2021-46634 is a vulnerability that allows remote attackers to execute arbitrary code on affected installations of Bentley MicroStation CONNECT 10.16.0.80.
How severe is CVE-2021-46634?
CVE-2021-46634 has a severity score of 7.8, which is considered high.
How can the CVE-2021-46634 vulnerability be exploited?
To exploit CVE-2021-46634, user interaction is required, such as visiting a malicious page or opening a malicious file.
What software is affected by the CVE-2021-46634 vulnerability?
The CVE-2021-46634 vulnerability affects Bentley MicroStation CONNECT 10.16.0.80 and Bentley MicroStation versions up to exclusive 10.16.02.
Is there a fix available for CVE-2021-46634?
It is recommended to update to Bentley MicroStation CONNECT version 10.16.02 or higher to mitigate the CVE-2021-46634 vulnerability.
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