CVE-2021-46621: Bentley MicroStation CONNECT JT File Parsing Double 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 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 handling of JT files. The issue results from the lack of validating the existence of an object prior to performing further free operations on the object. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-15415.
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 | |
| Bentley MicroStation CONNECT |
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Reference Links
Frequently Asked Questions
What is the vulnerability ID for this vulnerability?
The vulnerability ID for this vulnerability is CVE-2021-46621.
What software is affected by this vulnerability?
Bentley MicroStation CONNECT versions up to and including 10.16.0.80 are affected by this vulnerability.
How can this vulnerability be exploited?
This vulnerability can be exploited by remote attackers who can execute arbitrary code on affected installations of Bentley MicroStation CONNECT 10.16.0.80. User interaction is required, such as visiting a malicious page or opening a malicious file.
What is the severity of CVE-2021-46621?
The severity of CVE-2021-46621 is high with a CVSS score of 7.8.
How do I fix CVE-2021-46621?
To fix CVE-2021-46621, it is recommended to update Bentley MicroStation CONNECT to a version beyond 10.16.0.80.
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