CVE-2021-34937: Bentley View JT File Parsing Use-After-Free 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. 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 vulnerability to execute code in the context of the current process. Was ZDI-CAN-14915.
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. 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 vulnerability to execute code in the context of the current process.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2021-34937?
CVE-2021-34937 is rated as high severity due to its ability to allow remote code execution.
How do I fix CVE-2021-34937?
To fix CVE-2021-34937, you should update to a version of Bentley View or Bentley MicroStation that is 10.16.02 or higher.
What software is affected by CVE-2021-34937?
CVE-2021-34937 affects Bentley View version 10.15.0.75 and earlier, as well as Bentley MicroStation before version 10.16.02.
What type of attack does CVE-2021-34937 enable?
CVE-2021-34937 enables remote attackers to execute arbitrary code on vulnerable systems.
Is user interaction required to exploit CVE-2021-34937?
Yes, user interaction is required for CVE-2021-34937, as the target must visit a malicious page or open a malicious file.