CVE-2021-34946 Explained : Impact and Mitigation

This CVE-2021-34946 article provides detailed information about a vulnerability in Bentley View 10.15.0.75 that allows remote attackers to execute arbitrary code upon exploitation.

Understanding CVE-2021-34946

This section delves into the key aspects of the CVE-2021-34946 vulnerability.

What is CVE-2021-34946?

CVE-2021-34946 is a security flaw in Bentley View 10.15.0.75 that enables attackers to run malicious code by manipulating JT files, requiring user interaction to trigger the flaw.

The Impact of CVE-2021-34946

The vulnerability has a CVSS base score of 7.8 (High severity) with significant impacts on confidentiality, integrity, and availability, posing a serious threat to affected systems. It was discovered by Mat Powell of Trend Micro Zero Day Initiative.

Technical Details of CVE-2021-34946

This section outlines the specific technical details of CVE-2021-34946.

Vulnerability Description

The vulnerability arises from a flaw in parsing JT files, leading to a buffer overflow that allows attackers to execute code within the current process.

Affected Systems and Versions

Bentley View 10.15.0.75 is the version affected by CVE-2021-34946, leaving installations of this software at risk of exploitation.

Exploitation Mechanism

Attackers can exploit the vulnerability by crafting JT files with malicious data that triggers a buffer overflow, enabling the execution of arbitrary code.

Mitigation and Prevention

In this section, you will find essential steps to mitigate the risks posed by CVE-2021-34946.

Immediate Steps to Take

Users should refrain from visiting suspicious websites or opening unknown files to prevent exploitation. Patching systems and software is crucial to mitigate the vulnerability's impact.

Long-Term Security Practices

Regular security updates, user awareness training, and security best practices can enhance overall cybersecurity posture and prevent similar vulnerabilities.

Patching and Updates

Vendors, such as Bentley, are expected to release patches addressing the CVE-2021-34946 vulnerability. Users should promptly apply these updates to protect their systems.