CVE-2021-34926: Bentley View JT File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability
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-14904.
Other sources
This vulnerability allows remote attackers to execute arbitrary code on affected installations of Bentley View. 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.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2021-34926?
CVE-2021-34926 is rated as high severity due to its potential for remote code execution.
How do I fix CVE-2021-34926?
To fix CVE-2021-34926, update Bentley View and MicroStation to version 10.16.02 or later.
Who is affected by CVE-2021-34926?
CVE-2021-34926 affects users of Bentley View versions prior to 10.16.02 and Bentley MicroStation versions prior to 10.16.02.
What type of vulnerability is CVE-2021-34926?
CVE-2021-34926 is a remote code execution vulnerability that requires user interaction to exploit.
What can an attacker do with CVE-2021-34926?
An attacker can execute arbitrary code on the affected installations of Bentley applications if the user visits a malicious page or opens a malicious file.