CVE-2021-46568 : Security Advisory and Response

This CVE-2021-46568 relates to a vulnerability in Bentley MicroStation CONNECT 10.16.0.80, allowing remote attackers to execute arbitrary code.

Understanding CVE-2021-46568

This vulnerability requires user interaction through visiting a malicious page or opening a malicious file, affecting the parsing of JT files.

What is CVE-2021-46568?

The vulnerability permits attackers to execute code by triggering a buffer overflow. It requires user interaction for exploitation.

The Impact of CVE-2021-46568

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

Technical Details of CVE-2021-46568

This section provides specific technical details of the vulnerability.

Vulnerability Description

The flaw allows attackers to write past the end of an allocated buffer, enabling code execution in the current process.

Affected Systems and Versions

Affected Product: Bentley MicroStation CONNECT
Affected Version: 10.16.0.80

Exploitation Mechanism

Attackers can exploit the vulnerability by crafting data in a JT file to trigger the buffer overflow.

Mitigation and Prevention

It is crucial to take immediate and long-term steps to mitigate the risks.

Immediate Steps to Take

Implement security patches provided by Bentley.
Avoid visiting untrusted websites or opening unknown files.
Update antivirus software to detect malicious JT files.

Long-Term Security Practices

Conduct regular security training to educate users on safe browsing practices.
Utilize network intrusion detection systems to monitor and block malicious activities.
Enforce the principle of least privilege to limit access rights.
Perform regular security assessments to identify and remediate vulnerabilities.

Patching and Updates

Stay informed about security advisories from Bentley and promptly apply patches to address known vulnerabilities.