CVE-2021-34877: 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-14829.
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-2021-34877?
CVE-2021-34877 is considered a critical vulnerability that allows remote code execution on affected installations.
How do I fix CVE-2021-34877?
To fix CVE-2021-34877, users should update Bentley View and MicroStation to versions above 10.16.02.
What software is affected by CVE-2021-34877?
CVE-2021-34877 affects Bentley View 10.15.0.75 and Bentley MicroStation up to version 10.16.02.
What conditions are required for CVE-2021-34877 to be exploited?
Exploitation of CVE-2021-34877 requires user interaction, such as visiting a malicious page or opening a malicious file.
What impact does CVE-2021-34877 have on users?
CVE-2021-34877 can allow remote attackers to execute arbitrary code on vulnerable systems, posing a significant security risk.