CVE-2021-34917 : Vulnerability Insights and Analysis

This article provides detailed information about CVE-2021-34917, a vulnerability that allows remote attackers to execute arbitrary code on affected installations of Bentley View 10.15.0.75. User interaction is required to exploit this vulnerability.

Understanding CVE-2021-34917

CVE-2021-34917 is a vulnerability in Bentley View 10.15.0.75 that allows remote attackers to execute arbitrary code with high impact on confidentiality, integrity, and availability.

What is CVE-2021-34917?

CVE-2021-34917 enables remote attackers to run malicious code on affected versions of Bentley View 10.15.0.75 by exploiting a flaw in the parsing of J2K files. The lack of object validation before performing operations is the root cause of this vulnerability.

The Impact of CVE-2021-34917

The impact of CVE-2021-34917 is classified as high, affecting confidentiality, integrity, and availability. Attackers can execute code within the current process, leading to potential security breaches.

Technical Details of CVE-2021-34917

CVE-2021-34917 is categorized as a Use After Free vulnerability (CWE-416) with a CVSSv3 base score of 7.8 (High).

Vulnerability Description

The vulnerability arises from the incorrect validation of objects before operating on them, allowing attackers to exploit J2K file parsing and execute arbitrary code.

Affected Systems and Versions

Bentley View version 10.15.0.75 is affected by CVE-2021-34917, leaving installations vulnerable to remote code execution attacks.

Exploitation Mechanism

To exploit CVE-2021-34917, attackers need to lure a user into visiting a malicious page or opening a harmful file that triggers the vulnerability, highlighting the necessity of user interaction.

Mitigation and Prevention

To mitigate the risks associated with CVE-2021-34917, users should take immediate steps and adopt long-term security practices.

Immediate Steps to Take

Users should refrain from accessing suspicious links or files, apply security updates promptly, and consider implementing additional security measures.

Long-Term Security Practices

In the long term, organizations should prioritize cybersecurity awareness, conduct regular security assessments, and enforce strict access control policies.

Patching and Updates

Vendors like Bentley should release patches addressing CVE-2021-34917 promptly to safeguard users against potential exploits.