CVE-2021-34942 : Vulnerability Insights and Analysis

A vulnerability in Bentley View version 10.15.0.75 allows remote attackers to execute arbitrary code, posing a significant security risk.

Understanding CVE-2021-34942

This vulnerability involves a flaw in the parsing of JT files, enabling attackers to trigger a buffer overflow and execute code on the target system.

What is CVE-2021-34942?

This CVE allows attackers to run malicious code on Bentley View 10.15.0.75 installations by tricking users into visiting a compromised page or opening a malicious file.

The Impact of CVE-2021-34942

With a CVSS base score of 7.8, this high-severity vulnerability can lead to unauthorized code execution, compromising the integrity, confidentiality, and availability of affected systems.

Technical Details of CVE-2021-34942

The vulnerability stems from an out-of-bounds read (CWE-125) issue, enabling attackers to exploit the JT file parsing to execute arbitrary code.

Vulnerability Description

Crafted data in a JT file can trigger a buffer overflow, allowing attackers to execute code within the process context.

Affected Systems and Versions

Product: Bentley View
Vendor: Bentley
Version: 10.15.0.75

Exploitation Mechanism

Attackers can exploit this vulnerability by enticing victims to interact with malicious files or pages, leading to code execution with high impact.

Mitigation and Prevention

Taking immediate steps and establishing long-term security measures are crucial to mitigating the risks associated with CVE-2021-34942.

Immediate Steps to Take

Users should refrain from interacting with untrusted files or links, update to patched versions, and maintain caution while browsing.

Long-Term Security Practices

Regularly apply security updates, conduct security awareness training, and deploy endpoint protection solutions to deter potential attacks.

Patching and Updates

Bentley users are advised to install the latest security patches and stay informed about cybersecurity best practices.