CVE-2021-34876: 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-14828.
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-2021-34876?
CVE-2021-34876 has a critical severity rating due to the potential for remote code execution by attackers.
How do I fix CVE-2021-34876?
To fix CVE-2021-34876, update Bentley View to version 10.16.02 or later.
What software is affected by CVE-2021-34876?
CVE-2021-34876 affects Bentley View version 10.15.0.75 and earlier, as well as Bentley MicroStation versions up to 10.16.02.
Is user interaction required to exploit CVE-2021-34876?
Yes, user interaction is required to exploit CVE-2021-34876, as the target must visit a malicious page or open a harmful file.
What kind of attacks can be performed using CVE-2021-34876?
CVE-2021-34876 allows remote attackers to execute arbitrary code on the affected installations.