CVE-2021-34886: Bentley View FBX File Parsing Use-After-Free Information Disclosure Vulnerability
First published: Thu Jan 13 2022(Updated: )
This vulnerability allows remote attackers to disclose sensitive information 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 FBX 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 in conjunction with other vulnerabilities to execute arbitrary code in the context of the current process. Was ZDI-CAN-14839.
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-2021-34886?
CVE-2021-34886 is classified as a medium severity vulnerability.
How do I fix CVE-2021-34886?
To fix CVE-2021-34886, update Bentley View to version 10.16.02 or later.
What type of vulnerability is CVE-2021-34886?
CVE-2021-34886 is a remote information disclosure vulnerability.
Which software versions are affected by CVE-2021-34886?
CVE-2021-34886 affects Bentley View versions prior to 10.16.02 and also impacts Bentley MicroStation versions prior to 10.16.02.
Is user interaction required to exploit CVE-2021-34886?
Yes, user interaction is required as the target must visit a malicious page or open a malicious file to exploit CVE-2021-34886.
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