CVE-2021-34929: 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-14907.
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-2021-34929?
CVE-2021-34929 is rated as a critical vulnerability due to its ability to allow remote code execution.
How do I fix CVE-2021-34929?
To fix CVE-2021-34929, upgrade Bentley View or Bentley MicroStation to a version higher than 10.16.02.
What are the symptoms of CVE-2021-34929 being exploited?
Symptoms of CVE-2021-34929 exploitation include unusual behavior when opening files or visiting web pages related to Bentley View.
Is user interaction required to exploit CVE-2021-34929?
Yes, CVE-2021-34929 requires user interaction, as the target must either visit a malicious web page or open a malicious file.
Which software versions are affected by CVE-2021-34929?
CVE-2021-34929 affects Bentley View versions up to 10.16.02 and Bentley MicroStation versions up to 10.16.02.
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