CVE-2021-34923 : Security Advisory and Response

This CVE-2021-34923 affects Bentley View version 10.15.0.75. It allows remote attackers to execute arbitrary code through specially crafted JT files, posing a high risk of confidentiality, integrity, and availability breaches. User interaction is required for exploitation.

Understanding CVE-2021-34923

This section delves into the details of the CVE-2021-34923 vulnerability affecting Bentley View 10.15.0.75.

What is CVE-2021-34923?

CVE-2021-34923 enables remote attackers to execute arbitrary code on systems running Bentley View 10.15.0.75. Attackers can exploit this by tricking users into accessing a malicious web page or file containing crafted JT data.

The Impact of CVE-2021-34923

The impact of this vulnerability is severe, with a CVSS base score of 7.8. It affects confidentiality, integrity, and availability, necessitating immediate actions to mitigate potential risks.

Technical Details of CVE-2021-34923

Exploring the technical aspects and implications of CVE-2021-34923.

Vulnerability Description

The vulnerability exists in the parsing of JT files, allowing attackers to trigger a buffer overflow by inserting malicious data. This overflow permits the execution of arbitrary code within the current process context.

Affected Systems and Versions

Bentley View version 10.15.0.75 is specifically impacted by this vulnerability, putting systems with this software version at risk.

Exploitation Mechanism

To exploit CVE-2021-34923, attackers need to lure victims into interacting with a malicious page or file containing crafted JT data, thereby executing arbitrary code in the process context.

Mitigation and Prevention

Understanding the steps and practices to mitigate and prevent the CVE-2021-34923 vulnerability.

Immediate Steps to Take

Users should refrain from accessing unknown or suspicious web pages and refrain from opening files from untrusted sources to prevent exploitation. Implementing security patches and updates is crucial.

Long-Term Security Practices

Adopting robust security measures, such as regular software updates, security training for employees, and implementing access controls, can enhance overall security posture.

Patching and Updates

Vendors should release patches addressing the vulnerability promptly to protect users. It is advisable to apply patches as soon as they are available to mitigate the risk of exploitation.