CVE-2021-20702 : Vulnerability Insights and Analysis
Learn about CVE-2021-20702, a critical buffer overflow vulnerability in NEC Corporation's CLUSTERPRO X and EXPRESSCLUSTER X 4.3 for Windows and earlier versions, enabling remote code execution.
A buffer overflow vulnerability in the Transaction Server CLUSTERPRO X and EXPRESSCLUSTER X 4.3 for Windows and earlier versions, provided by NEC Corporation, could allow remote code execution via a network.
Understanding CVE-2021-20702
This section provides insights into the nature and impact of the CVE-2021-20702 vulnerability.
What is CVE-2021-20702?
The CVE-2021-20702 vulnerability is characterized by a buffer overflow issue in the CLUSTERPRO X and EXPRESSCLUSTER X 4.3 versions for Windows and earlier. This flaw can be exploited by attackers to achieve remote code execution through a network.
The Impact of CVE-2021-20702
The impact of this vulnerability is severe, as it provides malicious actors with the opportunity to execute arbitrary code remotely, compromising the affected systems' integrity and security.
Technical Details of CVE-2021-20702
In this section, the technical aspects of the CVE-2021-20702 vulnerability are discussed.
Vulnerability Description
The vulnerability arises due to a buffer overflow in the Transaction Server CLUSTERPRO X and EXPRESSCLUSTER X 4.3 versions for Windows and earlier, enabling threat actors to execute code remotely via a network.
Affected Systems and Versions
The affected products include CLUSTERPRO X 4.3 for Windows, EXPRESSCLUSTER X 4.3 for Windows, CLUSTERPRO X 4.3 SingleServerSafe for Windows, and EXPRESSCLUSTER X 4.3 SingleServerSafe for Windows.
Exploitation Mechanism
By exploiting the buffer overflow in the Transaction Server, attackers can achieve remote code execution through network-based attacks.
Mitigation and Prevention
This section outlines the steps to mitigate the CVE-2021-20702 vulnerability and prevent potential exploitation.
Immediate Steps to Take
Immediate mitigation steps involve applying relevant patches and updates, implementing network security measures, and monitoring for any signs of exploitation.
Long-Term Security Practices
Establishing robust cybersecurity practices, conducting regular security audits, and promoting security awareness among users can contribute to long-term prevention.
Patching and Updates
Regularly updating the affected products, implementing security patches provided by NEC Corporation, and staying informed about cybersecurity best practices are crucial in addressing this vulnerability.