CVE-2021-46569 : Exploit Details and Defense Strategies

A vulnerability in Bentley MicroStation CONNECT version 10.16.0.80 allows remote attackers to execute arbitrary code, posing a high risk to confidentiality and integrity.

Understanding CVE-2021-46569

This CVE involves a specific flaw in the parsing of JT files in Bentley MicroStation CONNECT, leading to remote code execution.

What is CVE-2021-46569?

The vulnerability enables attackers to trigger a buffer overflow by crafting JT file data, allowing them to execute code within the current process.

The Impact of CVE-2021-46569

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

Technical Details of CVE-2021-46569

This section details the technical aspects of the vulnerability.

Vulnerability Description

The flaw allows attackers to write past the end of an allocated buffer, leading to code execution.

Affected Systems and Versions

Product: MicroStation CONNECT
Vendor: Bentley
Version: 10.16.0.80

Exploitation Mechanism

User interaction is necessary, requiring targets to access a malicious page or open a malicious file to exploit the vulnerability.

Mitigation and Prevention

Actions to mitigate the impact of CVE-2021-46569

Immediate Steps to Take

Implement security patches promptly
Educate users on safe browsing practices
Monitor network traffic for suspicious activities

Long-Term Security Practices

Conduct regular security assessments
Employ network segmentation to limit attack surfaces

Patching and Updates

Apply vendor-provided patches as soon as they are released