CVE-2021-46638: Bentley MicroStation CONNECT DGN File Parsing Stack-based Buffer Overflow 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. 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-15510.
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 the vulnerability ID?
The vulnerability ID is CVE-2021-46638.
What is the severity of CVE-2021-46638?
The severity of CVE-2021-46638 is high (7.8).
Which software versions are affected by CVE-2021-46638?
Bentley MicroStation CONNECT versions up to and including 10.16.0.80 are affected.
How can the vulnerability CVE-2021-46638 be exploited?
The vulnerability can be exploited by remote attackers who can execute arbitrary code by tricking the target into visiting a malicious page or opening a malicious file.
Is user interaction required to exploit CVE-2021-46638?
Yes, user interaction is required to exploit CVE-2021-46638.
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