CVE-2021-46643: Bentley View 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 View 10.15.0.75. 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-15515.
Credit: zdi-disclosures@trendmicro.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Bentley MicroStation | <10.16.02 | |
| Bentley View | <10.16.02 | |
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Reference Links
Frequently Asked Questions
What is the vulnerability ID for this Bentley View vulnerability?
The vulnerability ID for this Bentley View vulnerability is CVE-2021-46643.
What is the severity rating of CVE-2021-46643?
The severity rating of CVE-2021-46643 is 7.8 (high).
How can remote attackers exploit CVE-2021-46643?
Remote attackers can exploit CVE-2021-46643 by executing arbitrary code on affected installations of Bentley View 10.15.0.75.
Is user interaction required to exploit CVE-2021-46643?
Yes, user interaction is required to exploit CVE-2021-46643. The target must visit a malicious page or open a malicious file.
What software versions are affected by CVE-2021-46643?
Bentley MicroStation and Bentley View versions up to and exclusive of 10.16.02 are affected by CVE-2021-46643.
What is the Common Weakness Enumeration (CWE) ID for this vulnerability?
The CWE ID for this vulnerability is CWE-121.
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