CVE-2021-34876: Bentley View JT File Parsing Out-Of-Bounds Write 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 JT files. Crafted data in a JT file can trigger a write past the end of an allocated buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-14828.
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-2021-34876?
CVE-2021-34876 has a critical severity rating due to the potential for remote code execution by attackers.
How do I fix CVE-2021-34876?
To fix CVE-2021-34876, update Bentley View to version 10.16.02 or later.
What software is affected by CVE-2021-34876?
CVE-2021-34876 affects Bentley View version 10.15.0.75 and earlier, as well as Bentley MicroStation versions up to 10.16.02.
Is user interaction required to exploit CVE-2021-34876?
Yes, user interaction is required to exploit CVE-2021-34876, as the target must visit a malicious page or open a harmful file.
What kind of attacks can be performed using CVE-2021-34876?
CVE-2021-34876 allows remote attackers to execute arbitrary code on the affected installations.
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