CVE-2021-46643 : Security Advisory and Response

This CVE-2021-46643 article provides insights into a vulnerability in Bentley View 10.15.0.75 allowing remote code execution.

Understanding CVE-2021-46643

This section explores the details and impacts of the vulnerability.

What is CVE-2021-46643?

CVE-2021-46643 allows remote attackers to execute arbitrary code on affected installations of Bentley View 10.15.0.75. The vulnerability stems from inadequate validation of user-supplied data when parsing DGN files.

The Impact of CVE-2021-46643

CVSS Score: 7.8 (High)
Attack Vector: Local
User Interaction: Required
Privileges Required: None
Confidentiality Impact: High
Integrity Impact: High
Availability Impact: High

Technical Details of CVE-2021-46643

Exploring the technical aspects of CVE-2021-46643.

Vulnerability Description

The vulnerability is a stack-based buffer overflow (CWE-121) in Bentley View 10.15.0.75, allowing attackers to execute code in the process context due to improper data validation.

Affected Systems and Versions

Affected Product: Bentley View
Affected Version: 10.15.0.75

Exploitation Mechanism

User interaction is required, such as visiting a malicious page or opening a malicious file, for exploitation.

Mitigation and Prevention

Guidelines to mitigate and prevent the exploitation of CVE-2021-46643.

Immediate Steps to Take

Implement security patches promptly.
Avoid opening files or visiting untrusted websites.
Utilize security tools to detect and mitigate potential threats.

Long-Term Security Practices

Regularly update software and security tools.
Conduct security awareness training for users to recognize and report suspicious activities.
Implement network segmentation and access controls.

Patching and Updates

Stay informed about security updates from Bentley and apply them as soon as they are available.