CVE-2021-34900 : What You Need to Know

This vulnerability 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 in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the parsing of J2K files. An attacker can leverage this vulnerability to execute code in the context of the current process.

Understanding CVE-2021-34900

CVE-2021-34900 is a high-severity vulnerability affecting Bentley View versions. It allows remote attackers to execute arbitrary code by exploiting a flaw in the parsing of J2K files, leading to potential heap-based buffer overflow.

What is CVE-2021-34900?

CVE-2021-34900 is a vulnerability in Bentley View 10.15.0.75 that enables attackers to run arbitrary code with the privileges of the current user by tricking them into interacting with a malicious page or file.

The Impact of CVE-2021-34900

The impact of this vulnerability is significant, as it allows remote attackers to take control of affected systems, compromising confidentiality, integrity, and availability.

Technical Details of CVE-2021-34900

This section provides detailed technical information about the vulnerability.

Vulnerability Description

CVE-2021-34900 is a heap-based buffer overflow vulnerability in Bentley View 10.15.0.75 that occurs due to improper validation of user-supplied data when parsing J2K files, allowing attackers to execute arbitrary code.

Affected Systems and Versions

The vulnerability affects Bentley View version 10.15.0.75.

Exploitation Mechanism

Attackers can exploit this vulnerability by persuading users to visit a malicious website or open a malicious file containing specially crafted J2K data.

Mitigation and Prevention

To mitigate the risks associated with CVE-2021-34900, follow the steps below.

Immediate Steps to Take

Update Bentley View to the latest version to patch the vulnerability.
Avoid visiting untrusted websites or opening suspicious files to prevent exploitation.

Long-Term Security Practices

Regularly update software and security patches to protect against known vulnerabilities.
Educate users about the risks of interacting with untrusted content to prevent future exploits.

Patching and Updates

Stay informed about security advisories from Bentley and apply patches promptly to secure your systems.