CVE-2021-46648: Bentley MicroStation CONNECT DGN File Parsing Heap-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 heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-15534.
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-2021-46648?
CVE-2021-46648 is a vulnerability in Bentley MicroStation CONNECT that allows remote code execution.
How severe is CVE-2021-46648?
CVE-2021-46648 has a severity rating of 7.8 (high).
What is the affected software?
The affected software is Bentley MicroStation CONNECT version up to and including 10.16.0.80.
How can attackers exploit CVE-2021-46648?
Attackers can exploit CVE-2021-46648 by tricking users into visiting a malicious page or opening a malicious file.
Are there any references for CVE-2021-46648?
Yes, you can find more information about CVE-2021-46648 at the following references: [1](https://www.bentley.com/en/common-vulnerability-exposure/BE-2021-0009) and [2](https://www.zerodayinitiative.com/advisories/ZDI-22-235/).
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