CVE-2021-34929: 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-14907.
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-2021-34929?
CVE-2021-34929 is rated as a critical vulnerability due to its ability to allow remote code execution.
How do I fix CVE-2021-34929?
To fix CVE-2021-34929, upgrade Bentley View or Bentley MicroStation to a version higher than 10.16.02.
What are the symptoms of CVE-2021-34929 being exploited?
Symptoms of CVE-2021-34929 exploitation include unusual behavior when opening files or visiting web pages related to Bentley View.
Is user interaction required to exploit CVE-2021-34929?
Yes, CVE-2021-34929 requires user interaction, as the target must either visit a malicious web page or open a malicious file.
Which software versions are affected by CVE-2021-34929?
CVE-2021-34929 affects Bentley View versions up to 10.16.02 and Bentley MicroStation versions up to 10.16.02.