CVE-2021-34894 : Exploit Details and Defense Strategies

This CVE-2021-34894 impacts Bentley View version 10.15.0.75, allowing remote attackers to execute arbitrary code. User interaction is required through visiting a malicious page or opening a malicious file for exploitation.

Understanding CVE-2021-34894

This vulnerability enables attackers to run malicious code on affected Bentley View installations.

What is CVE-2021-34894?

CVE-2021-34894 in Bentley View 10.15.0.75 allows remote attackers to execute arbitrary code by exploiting a flaw in parsing 3DS files.

The Impact of CVE-2021-34894

The vulnerability has a CVSS base score of 7.8 (High severity) with high confidentiality, integrity, and availability impacts.

Technical Details of CVE-2021-34894

This section delves into the specifics of the vulnerability.

Vulnerability Description

The flaw arises from the lack of validating an object's existence before performing operations, enabling attackers to execute code within the process context.

Affected Systems and Versions

Bentley View 10.15.0.75 is the specific version impacted by this vulnerability.

Exploitation Mechanism

Remote attackers require user interaction to exploit the flaw, necessitating a visit to a malicious page or opening a malicious file.

Mitigation and Prevention

Learn how to address and prevent CVE-2021-34894.

Immediate Steps to Take

Update Bentley View to a non-vulnerable version promptly.
Avoid visiting untrusted websites or opening suspicious files.

Long-Term Security Practices

Regularly update software to the latest secure versions.
Implement security best practices like network segmentation and access controls.

Patching and Updates

Stay informed about security patches for all software and apply them in a timely manner to mitigate risks.