CVE-2021-21964 : Exploit Details and Defense Strategies
Learn about CVE-2021-21964, a high-severity denial of service vulnerability in Sealevel Systems, Inc. SeaConnect 370W v1.3.34. Find out the impact, affected systems, and mitigation steps.
This article discusses a denial of service vulnerability identified as CVE-2021-21964 in Sealevel Systems, Inc. SeaConnect 370W v1.3.34, affecting the Modbus configuration functionality.
Understanding CVE-2021-21964
This section delves into the impact and technical details of the CVE-2021-21964 vulnerability.
What is CVE-2021-21964?
The CVE-2021-21964 vulnerability is a denial of service flaw in Sealevel Systems, Inc. SeaConnect 370W v1.3.34, triggered by specially-crafted network packets.
The Impact of CVE-2021-21964
The vulnerability has a CVSS base score of 8.6, categorizing it as a high-severity issue with potential high availability impact.
Technical Details of CVE-2021-21964
This section provides more in-depth technical information about the vulnerability.
Vulnerability Description
The vulnerability arises from improper access control in the Modbus configuration functionality, allowing attackers to cause denial of service.
Affected Systems and Versions
Sealevel Systems, Inc. SeaConnect 370W v1.3.34 is specifically impacted by this vulnerability.
Exploitation Mechanism
Attackers can exploit this vulnerability by sending malicious packets to the targeted system via the network
Mitigation and Prevention
To address CVE-2021-21964, immediate steps and long-term security practices are recommended.
Immediate Steps to Take
It is crucial to apply relevant patches and security updates provided by the vendor to mitigate the risk of exploitation.
Long-Term Security Practices
Implementing proper network segmentation, access controls, and regular security audits can enhance overall security posture.
Patching and Updates
Regularly monitor the vendor's security advisories and promptly apply patches to protect against known vulnerabilities.