CVE-2021-46589 : Exploit Details and Defense Strategies

This CVE-2021-46589 article provides an overview of a vulnerability in Bentley MicroStation CONNECT version 10.16.0.80, allowing remote attackers to disclose sensitive information. Mat Powell of Trend Micro Zero Day Initiative discovered this vulnerability.

Understanding CVE-2021-46589

What is CVE-2021-46589?

CVE-2021-46589 is a vulnerability in Bentley MicroStation CONNECT version 10.16.0.80 that permits remote attackers to reveal sensitive information by exploiting the parsing of DGN files without proper validation.

The Impact of CVE-2021-46589

This vulnerability has a CVSS base score of 3.3 (Low severity) and requires user interaction to be exploited. It allows attackers to execute arbitrary code in the context of the current process, potentially leading to data exposure.

Technical Details of CVE-2021-46589

Vulnerability Description

The flaw in Bentley MicroStation CONNECT 10.16.0.80 stems from improper validation of user-supplied data, leading to a buffer read past the allocated end, allowing attackers to manipulate other vulnerabilities for code execution.

Affected Systems and Versions

Product: MicroStation CONNECT
Vendor: Bentley
Version: 10.16.0.80

Exploitation Mechanism

Attack Complexity: Low
Attack Vector: Local
User Interaction: Required
Privileges Required: None
Scope: Unchanged
CWE-125: Out-of-bounds Read

Mitigation and Prevention

Immediate Steps to Take

Update Bentley MicroStation CONNECT to the latest version
Avoid visiting suspicious or untrusted websites

Long-Term Security Practices

Regularly update software and implement security patches
Educate users on safe browsing habits

Patching and Updates

Apply patches released by Bentley to address the vulnerability in MicroStation CONNECT.