CVE-2021-34890 : What You Need to Know

This CVE-2021-34890 affects Bentley View version 10.15.0.75 software. The vulnerability allows remote attackers to disclose sensitive information by exploiting a flaw in parsing JT files. User interaction is necessary for exploitation, where the target must visit a malicious page or open a malicious file. The vulnerability can lead to arbitrary code execution in the context of the current process.

Understanding CVE-2021-34890

This section explores the details of CVE-2021-34890, its impact, technical aspects, and mitigation techniques.

What is CVE-2021-34890?

The vulnerability in Bentley View 10.15.0.75 software allows remote attackers to access sensitive information. By exploiting the lack of proper data validation when parsing JT files, attackers can execute arbitrary code in the process context.

The Impact of CVE-2021-34890

The impact of this vulnerability can result in the unauthorized disclosure of sensitive data, potentially leading to further exploitation via code execution in the affected process.

Technical Details of CVE-2021-34890

Let's dive into the technical specifics of CVE-2021-34890, including the vulnerability description, affected systems, and exploitation mechanism.

Vulnerability Description

CVE-2021-34890 involves an out-of-bounds read vulnerability within the parsing of JT files in Bentley View software. This results from the inadequate validation of user-supplied data, enabling attackers to read beyond allocated buffers.

Affected Systems and Versions

The vulnerability affects Bentley View version 10.15.0.75 software systems. Users of this specific version are at risk of exploitation through malicious web pages or files.

Exploitation Mechanism

To exploit CVE-2021-34890, attackers need to entice targets to interact with crafted web content or files that trigger the flaw in JT file parsing. Successful exploitation can lead to the execution of arbitrary code.

Mitigation and Prevention

Learn how to protect your systems from CVE-2021-34890 through immediate steps, long-term security practices, and staying up-to-date with patches.

Immediate Steps to Take

Users are advised to be cautious when interacting with unknown or suspicious web pages or files. Implement proper security measures and restrict access to vulnerable systems.

Long-Term Security Practices

Enhance system security by regularly updating software, employing security tools, and educating users on safe browsing practices to prevent similar vulnerabilities.

Patching and Updates

Stay informed about security updates released by Bentley for Bentley View software. Apply patches promptly to mitigate the risk of exploitation.