Learn about CVE-2021-21961, a critical stack-based buffer overflow vulnerability in Sealevel Systems, Inc. SeaConnect 370W v1.3.34, allowing for remote code execution. Find mitigation steps and prevention measures.
This article provides an in-depth analysis of CVE-2021-21961, a critical stack-based buffer overflow vulnerability found in Sealevel Systems, Inc. SeaConnect 370W v1.3.34, allowing remote code execution.
Understanding CVE-2021-21961
CVE-2021-21961 is a severe vulnerability that exists in the NBNS functionality of Sealevel Systems, Inc. SeaConnect 370W v1.3.34, which can be exploited by an attacker to execute malicious code remotely.
What is CVE-2021-21961?
CVE-2021-21961 is a stack-based buffer overflow vulnerability in the SeaConnect 370W v1.3.34. By sending a specially-crafted network packet, an attacker can trigger this vulnerability and achieve remote code execution.
The Impact of CVE-2021-21961
The impact of CVE-2021-21961 is critical, with a CVSS v3.0 base score of 10 (Critical), posing a high risk to confidentiality, integrity, and availability of the affected systems.
Technical Details of CVE-2021-21961
CVE-2021-21961 involves the following technical details:
Vulnerability Description
The vulnerability is a stack-based buffer overflow in the NBNS functionality of Sealevel Systems, Inc. SeaConnect 370W v1.3.34, allowing attackers to remotely execute arbitrary code.
Affected Systems and Versions
Sealevel Systems, Inc. SeaConnect 370W v1.3.34 is affected by this vulnerability.
Exploitation Mechanism
An attacker can exploit this vulnerability by sending a specially-crafted network packet to the target system, triggering the buffer overflow and potentially gaining unauthorized access.
Mitigation and Prevention
To mitigate the risks associated with CVE-2021-21961, consider the following steps:
Immediate Steps to Take
Long-Term Security Practices
Patching and Updates
Sealevel Systems may release patches or updates to address CVE-2021-21961. It is crucial to promptly apply these patches to secure the affected systems.