CVE-2021-21951 Explained : Impact and Mitigation
Learn about CVE-2021-21951, a critical out-of-bounds write vulnerability in Anker Eufy Homebase 2 2.1.6.9h. Understand the impact, technical details, and mitigation steps.
An out-of-bounds write vulnerability exists in the CMD_DEVICE_GET_SERVER_LIST_REQUEST functionality of the home_security binary of Anker Eufy Homebase 2 2.1.6.9h that can lead to code execution.
Understanding CVE-2021-21951
This CVE relates to a critical vulnerability found in Anker Eufy Homebase 2 2.1.6.9h, posing a severe risk to the security of affected systems.
What is CVE-2021-21951?
The vulnerability in Anker Eufy Homebase 2 2.1.6.9h allows for an out-of-bounds write, triggered by a specially-crafted network packet, which could result in unauthorized code execution.
The Impact of CVE-2021-21951
With a CVSS base score of 10 (Critical), this vulnerability has a significant impact on confidentiality, integrity, and availability, making it crucial to address promptly.
Technical Details of CVE-2021-21951
This section covers specific technical details and implications of CVE-2021-21951.
Vulnerability Description
The vulnerability arises in the home_security binary, precisely in the CMD_DEVICE_GET_SERVER_LIST_REQUEST function, due to improper boundary restrictions within a memory buffer.
Affected Systems and Versions
Anker Eufy Homebase 2 version 2.1.6.9h is specifically impacted by this vulnerability, potentially exposing devices running this version to exploitation.
Exploitation Mechanism
Exploiting this vulnerability requires the use of a meticulously crafted network packet, thereby enabling attackers to execute arbitrary code on vulnerable systems.
Mitigation and Prevention
To mitigate the risks associated with CVE-2021-21951, effective security measures need to be implemented promptly.
Immediate Steps to Take
Users should apply security patches provided by Anker promptly to address the vulnerability and prevent potential exploitation.
Long-Term Security Practices
Regularly updating devices, implementing network security measures, and monitoring for unusual network activity can enhance the overall security posture.
Patching and Updates
Ensure that the affected Anker Eufy Homebase 2 devices are regularly updated with the latest firmware and security patches to mitigate the identified vulnerability.