CVE-2021-46654 : Exploit Details and Defense Strategies

This CVE-2021-46654 covers a vulnerability found in Bentley View version 10.15.0.75, allowing remote attackers to access sensitive information. The flaw is related to the parsing of DGN files, which lacks proper validation of user-supplied data, leading to potential information disclosure and code execution.

Understanding CVE-2021-46654

This section delves into the details and impact of the CVE-2021-46654 vulnerability.

What is CVE-2021-46654?

CVE-2021-46654 is a vulnerability in Bentley View 10.15.0.75 that enables remote attackers to unveil sensitive data by exploiting a specific flaw in the handling of DGN files. The issue originates from inadequate validation of user-provided data, facilitating an attacker to read past allocated buffers and execute arbitrary code.

The Impact of CVE-2021-46654

The vulnerability presents the following impact:

CVSS Base Score: 3.3 (Low)
Attack Vector: Local
User Interaction: Required
Confidentiality Impact: Low
Integrity Impact: None
Privileges Required: None
Attack Complexity: Low
Scope: Unchanged
Vector String: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N

Technical Details of CVE-2021-46654

Explore the technical specifics related to CVE-2021-46654.

Vulnerability Description

The vulnerability is categorized as CWE-125: Out-of-bounds Read, highlighting the issue of reading beyond the boundaries of allocated memory.

Affected Systems and Versions

Affected Product: Bentley View
Affected Version: 10.15.0.75

Exploitation Mechanism

The vulnerability requires user interaction wherein a user must visit a malicious webpage or open a malicious file to trigger the exploit.

Mitigation and Prevention

Learn how to mitigate and prevent risks associated with CVE-2021-46654.

Immediate Steps to Take

Ensure users do not open untrusted files or visit suspicious websites.
Implement security awareness training to educate users on phishing and social engineering techniques.
Regularly update software and security patches to fix vulnerabilities.

Long-Term Security Practices

Employ robust endpoint protection solutions to detect and prevent malicious activities.
Conduct regular security audits to identify and address vulnerabilities in the system.

Patching and Updates

Apply the latest patches and updates provided by Bentley to address the CVE-2021-46654 vulnerability.