CVE-2021-46645 : What You Need to Know

This CVE details a vulnerability in Bentley MicroStation CONNECT 10.16.0.80 that allows remote attackers to execute arbitrary code by exploiting a flaw in BMP image parsing.

Understanding CVE-2021-46645

This vulnerability in Bentley's software poses a high risk due to its potential impact on confidentiality, integrity, and availability.

What is CVE-2021-46645?

The vulnerability enables attackers to execute code on affected systems by manipulating BMP images, leading to a buffer write overflow.

The Impact of CVE-2021-46645

High Risk: Attackers can execute arbitrary code remotely with user interaction.
Confidentiality Impact: High
Integrity Impact: High
Availability Impact: High

Technical Details of CVE-2021-46645

This section provides a closer look at the technical aspects of the vulnerability.

Vulnerability Description

The flaw allows attackers to trigger buffer overflows through specially crafted BMP images, leading to arbitrary code execution.

Affected Systems and Versions

Affected Product: MicroStation CONNECT
Affected Version: 10.16.0.80

Exploitation Mechanism

The vulnerability requires user interaction by visiting malicious pages or opening malicious files to exploit the flaw.

Mitigation and Prevention

Understanding how to mitigate and prevent this vulnerability is crucial.

Immediate Steps to Take

Update MicroStation CONNECT to a patched version.
Avoid opening files or visiting websites from untrusted or unknown sources.
Implement network controls to restrict BMP image parsing.

Long-Term Security Practices

Regularly update software and apply security patches promptly.
Educate users on safe browsing habits to prevent exposure to malicious content.

Patching and Updates

Bentley may release patches or updates to address this vulnerability, so ensure timely installation of these fixes.