CVE-2021-34945: Bentley View JT File Parsing Heap-based Buffer Overflow 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 proper validation of the length of user-supplied data prior to copying it to a heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-15054.
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 proper validation of the length of user-supplied data prior to copying it to a heap-based 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-2021-34945?
CVE-2021-34945 is rated as critical due to the potential for remote code execution.
How do I fix CVE-2021-34945?
To fix CVE-2021-34945, update to Bentley View version 10.16.02 or later.
What products are affected by CVE-2021-34945?
CVE-2021-34945 affects Bentley View versions up to 10.16.02 and Bentley MicroStation versions up to 10.16.02.
Is user interaction required to exploit CVE-2021-34945?
Yes, user interaction is required as the target must visit a malicious page or open a malicious file.
What type of vulnerability is CVE-2021-34945?
CVE-2021-34945 is a remote code execution vulnerability.