CVE-2021-46576 Explained : Impact and Mitigation

This CVE article provides insights into a high-severity vulnerability in Bentley's MicroStation CONNECT.

Understanding CVE-2021-46576

This section delves into the nature of the vulnerability and its implications.

What is CVE-2021-46576?

CVE-2021-46576 is a vulnerability in Bentley's MicroStation CONNECT version 10.16.0.80. It enables remote attackers to execute arbitrary code with high confidentiality, integrity, and availability impact, triggered by parsing JT files.

The Impact of CVE-2021-46576

The vulnerability allows attackers to execute code on affected systems, necessitating user interaction by visiting a malicious page or opening a harmful file. This can lead to a write past the allocated buffer.

Technical Details of CVE-2021-46576

In this section, the technical aspects of the CVE are further explored.

Vulnerability Description

The flaw permits an out-of-bounds write attack, enabling attackers to execute arbitrary code in the context of the current process through crafted data in JT files.

Affected Systems and Versions

Product: MicroStation CONNECT
Vendor: Bentley
Version: 10.16.0.80

Exploitation Mechanism

Attackers leverage malformed data in JT files to trigger a buffer overflow, allowing the execution of malicious code.

Mitigation and Prevention

Here we discuss steps to mitigate the risks associated with CVE-2021-46576.

Immediate Steps to Take

Apply vendor-supplied patches promptly.
Avoid opening files from untrusted or unknown sources.
Educate users on safe browsing practices.

Long-Term Security Practices

Regularly update and patch software.
Implement network segmentation to limit the impact of potential breaches.
Conduct security training to enhance user awareness.

Patching and Updates

Timely application of official patches from Bentley is crucial to remediate this vulnerability.