CVE-2021-46635: Bentley MicroStation CONNECT DGN 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 DGN files. Crafted data in a DGN 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-15507.
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-2021-46635?
CVE-2021-46635 is a vulnerability that allows remote attackers to execute arbitrary code on affected installations of Bentley MicroStation CONNECT 10.16.0.80.
How can this vulnerability be exploited?
This vulnerability can be exploited by the target visiting a malicious page or opening a malicious file.
What is the severity of CVE-2021-46635?
CVE-2021-46635 has a severity level of 7.8 (high).
Which software versions are affected by CVE-2021-46635?
Bentley MicroStation CONNECT 10.16.0.80 is affected by CVE-2021-46635.
How can I fix CVE-2021-46635?
To fix CVE-2021-46635, update Bentley MicroStation CONNECT to a version that is not affected by the vulnerability.
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