CVE-2021-34930 : What You Need to Know

This article provides detailed information about CVE-2021-34930, a vulnerability that 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.

Understanding CVE-2021-34930

CVE-2021-34930 is a security vulnerability that exists within the parsing of JT files in Bentley View 10.15.0.75. It allows remote attackers to execute code on the target system by leveraging crafted data in a JT file.

What is CVE-2021-34930?

CVE-2021-34930 enables remote attackers to run arbitrary code on affected installations of Bentley View 10.15.0.75. By tricking a user into visiting a malicious page or opening a specially crafted file, an attacker can exploit this vulnerability.

The Impact of CVE-2021-34930

The impact of CVE-2021-34930 is rated as high, with confidentiality, integrity, and availability all being severely impacted. Attackers can execute code in the context of the current process, posing a significant risk to the affected systems.

Technical Details of CVE-2021-34930

CVE-2021-34930 has a base score of 7.8 out of 10, indicating a high severity level. The vulnerability is classified as CWE-125: Out-of-bounds Read.

Vulnerability Description

The vulnerability allows attackers to trigger a read past the end of an allocated buffer by manipulating data in a JT file, leading to arbitrary code execution.

Affected Systems and Versions

Bentley View version 10.15.0.75 is the only confirmed affected version by this vulnerability.

Exploitation Mechanism

To exploit this vulnerability, attackers must entice a user to interact with a malicious page or file containing crafted data that triggers the code execution.

Mitigation and Prevention

To mitigate the risks associated with CVE-2021-34930, immediate actions along with long-term security practices are recommended.

Immediate Steps to Take

Users should avoid visiting untrusted websites and refrain from opening files from unknown or suspicious sources to minimize the risk of exploitation.

Long-Term Security Practices

Regularly update Bentley View to the latest version, stay informed about security advisories, and implement cybersecurity best practices to enhance overall system security.

Patching and Updates

Vendor patches addressing CVE-2021-34930 may be available. It is crucial to apply these patches promptly to eliminate the vulnerability and protect the system from potential attacks.