CVE-2021-34895: Bentley View 3DS File Parsing Use-After-Free Remote Code Execution Vulnerability
First published: Thu Jan 13 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 3DS files. The issue results from the lack of validating the existence of an object prior to performing operations on the object. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-14862.
Credit: zdi-disclosures@trendmicro.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Bentley View | <10.16.02 | |
| Bentley MicroStation | <10.16.02 | |
| Bentley Systems |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2021-34895?
CVE-2021-34895 is classified as a critical vulnerability due to its potential for remote code execution.
How do I fix CVE-2021-34895?
To mitigate CVE-2021-34895, users should upgrade to a version of Bentley View or Bentley MicroStation that is beyond 10.16.02.
What types of attacks are possible with CVE-2021-34895?
CVE-2021-34895 allows remote attackers to execute arbitrary code if the user interacts with a malicious page or file.
Which versions of Bentley software are affected by CVE-2021-34895?
CVE-2021-34895 affects Bentley View version 10.15.0.75 and earlier versions as well as Bentley MicroStation up to version 10.16.02.
Is user interaction required to exploit CVE-2021-34895?
Yes, user interaction is required to exploit CVE-2021-34895, as the target must visit a malicious page or open a malicious file.
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