CVE-2021-34921 Explained : Impact and Mitigation
Learn about CVE-2021-34921, a critical vulnerability in Bentley View 10.15.0.75, allowing remote attackers to execute arbitrary code. Find out the impact, technical details, and mitigation strategies.
This CVE-2021-34921 article provides insight into a vulnerability in Bentley View version 10.15.0.75 that allows remote attackers to execute arbitrary code. It delves into the impact, technical details, and mitigation strategies associated with this CVE.
Understanding CVE-2021-34921
CVE-2021-34921 is a vulnerability in Bentley View 10.15.0.75 that enables remote attackers to execute arbitrary code by exploiting a flaw in the parsing of JT files.
What is CVE-2021-34921?
CVE-2021-34921 allows attackers to trigger a write past the end of an allocated buffer through crafted data in a JT file, leading to code execution within the current process.
The Impact of CVE-2021-34921
The vulnerability poses a high risk as it requires user interaction, making it critical for affected installations of Bentley View 10.15.0.75. Attackers can exploit this flaw to execute code with high confidentiality, integrity, and availability impact.
Technical Details of CVE-2021-34921
The technical aspects of CVE-2021-34921 include vulnerability description, affected systems, versions, and exploitation mechanism.
Vulnerability Description
The vulnerability arises from the parsing of JT files, allowing attackers to execute arbitrary code in the context of the current process by triggering a write beyond the allocated buffer.
Affected Systems and Versions
Bentley View version 10.15.0.75 is affected by this vulnerability, requiring immediate attention to prevent exploitation by malicious actors.
Exploitation Mechanism
User interaction is necessary for exploitation, where a target must interact with a malicious page or file, leading to code execution.
Mitigation and Prevention
To safeguard systems and data from CVE-2021-34921, immediate steps, security practices, and patching are crucial.
Immediate Steps to Take
Users should avoid interacting with suspicious pages or files, implement security best practices, and monitor for any unusual activities.
Long-Term Security Practices
Regular security updates, employee training on cybersecurity awareness, and network monitoring can enhance the overall security posture.
Patching and Updates
Vendors should release patches addressing the vulnerability promptly to mitigate the risk of exploitation and protect vulnerable installations.