CVE-2021-34902 : Vulnerability Insights and Analysis

This CVE-2021-34902 affects Bentley View version 10.15.0.75, allowing remote attackers to disclose sensitive information. The vulnerability requires user interaction to exploit. Read on to understand the impact, technical details, and mitigation strategies.

Understanding CVE-2021-34902

CVE-2021-34902 is a vulnerability found in Bentley View 10.15.0.75 that enables remote attackers to expose sensitive data. This exposure necessitates user interaction, such as accessing a malicious webpage or file.

What is CVE-2021-34902?

CVE-2021-34902 allows remote attackers to reveal sensitive information in affected installations of Bentley View 10.15.0.75. Exploiting this vulnerability requires the target to interact with a malicious page or file. The flaw is in the parsing of DWG files due to improper validation of user-supplied data, leading to potential code execution.

The Impact of CVE-2021-34902

The impact of CVE-2021-34902 is rated as low severity with a CVSS base score of 3.3. Attack complexity is low, with no privileges required. However, user interaction is necessary, and exploitation can lead to the execution of arbitrary code in the current process.

Technical Details of CVE-2021-34902

CVE-2021-34902 involves an out-of-bounds read vulnerability (CWE-125) within Bentley View 10.15.0.75. Below are the technical aspects related to this vulnerability:

Vulnerability Description

The vulnerability arises from inadequate validation of user-supplied data, causing a read past the allocated object's end. This flaw enables attackers to execute arbitrary code by combining it with other vulnerabilities.

Affected Systems and Versions

Bentley View version 10.15.0.75 is the only known affected version by this CVE.

Exploitation Mechanism

Exploiting CVE-2021-34902 requires user interaction, compelling the target to visit a malicious site or open a corrupted file, which triggers the vulnerability.

Mitigation and Prevention

To safeguard systems from CVE-2021-34902, follow these essential steps:

Immediate Steps to Take

Immediately update Bentley View to a patched version to mitigate the risk of exploitation. Avoid interacting with suspicious or untrusted files or websites.

Long-Term Security Practices

Incorporate secure coding practices during application development to prevent similar vulnerabilities. Regular security audits and training can enhance overall cybersecurity posture.

Patching and Updates

Stay informed about security patches and updates released by Bentley to address CVE-2021-34902 and other known vulnerabilities.