CVE-2021-34928: 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-14906.
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-2021-34928?
CVE-2021-34928 is rated as a high severity vulnerability that allows remote code execution.
Who is affected by CVE-2021-34928?
CVE-2021-34928 affects installations of Bentley View 10.15.0.75 and Bentley MicroStation versions up to 10.16.02.
How do I fix CVE-2021-34928?
To fix CVE-2021-34928, upgrade to a version of Bentley View or Bentley MicroStation that is 10.16.02 or higher.
What kind of attack vector is used in CVE-2021-34928?
CVE-2021-34928 can be exploited via remote code execution through user interaction with malicious pages or files.
Is user interaction required for CVE-2021-34928 exploitation?
Yes, exploiting CVE-2021-34928 requires user interaction, as the target must visit a malicious page or open a malicious file.
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