CVE-2021-46579 : Exploit Details and Defense Strategies

This CVE-2021-46579 involves a vulnerability in Bentley MicroStation CONNECT version 10.16.0.80, allowing remote attackers to execute arbitrary code after user interaction.

Understanding CVE-2021-46579

This CVE highlights a critical flaw that can lead to code execution in affected Bentley MicroStation CONNECT installations.

What is CVE-2021-46579?

The vulnerability permits attackers to run malicious code on systems running Bentley MicroStation CONNECT 10.16.0.80. Exploitation requires user interaction, such as visiting a corrupt page or opening a malevolent file, targeting JT file parsing.

The Impact of CVE-2021-46579

CVSS Base Score: 7.8 (High Severity)
Attack Vector: Local
User Interaction: Required
Confidentiality Impact: High
Integrity Impact: High
Availability Impact: High

Technical Details of CVE-2021-46579

This section delves into the technical specifics of the vulnerability.

Vulnerability Description

The flaw stems from inadequate validation of object existence before operations are performed, enabling attackers to execute code within the current process.

Affected Systems and Versions

Product: MicroStation CONNECT
Vendor: Bentley
Affected Version: 10.16.0.80

Exploitation Mechanism

Attackers can trigger this vulnerability by manipulating JT files, exploiting the lack of object validation to execute arbitrary code.

Mitigation and Prevention

Proactive measures to mitigate the risks associated with CVE-2021-46579.

Immediate Steps to Take

Update Bentley MicroStation CONNECT to a patched version.
Avoid opening files from untrusted sources.
Educate users on safe browsing habits to prevent visiting malicious pages.

Long-Term Security Practices

Implement network segmentation to limit the scope of potential attacks.
Employ intrusion detection systems to detect and block malicious activities.

Patching and Updates

Apply security patches and updates provided by Bentley to address the vulnerability.