CVE-2021-21950 : What You Need to Know
Understand CVE-2021-21950, a critical vulnerability in Anker Eufy Homebase 2. Learn about the impact, technical details, and mitigation strategies to secure your systems.
An out-of-bounds write vulnerability has been identified in the CMD_DEVICE_GET_SERVER_LIST_REQUEST function of the home_security binary of Anker Eufy Homebase 2 2.1.6.9h. This vulnerability can be exploited through a specially-crafted network packet, potentially leading to code execution.
Understanding CVE-2021-21950
This section will cover what CVE-2021-21950 is and its impact as well as the technical details and mitigation strategies.
What is CVE-2021-21950?
The vulnerability exists in the CMD_DEVICE_GET_SERVER_LIST_REQUEST functionality of Anker Eufy Homebase 2 2.1.6.9h, allowing an attacker to execute arbitrary code by sending a malicious network packet.
The Impact of CVE-2021-21950
CVE-2021-21950 has a CVSS v3.0 base score of 10 (Critical) with high impacts on confidentiality, integrity, and availability. The vulnerability does not require any privileges for exploitation and has a low attack complexity.
Technical Details of CVE-2021-21950
Let's dive into the specific technical aspects of this vulnerability.
Vulnerability Description
The vulnerability is classified under CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer, indicating the potential for exploiting memory operations beyond their intended boundaries.
Affected Systems and Versions
Anker Eufy Homebase 2 version 2.1.6.9h is confirmed to be affected by this vulnerability.
Exploitation Mechanism
By crafting a specific network packet, threat actors can trigger the out-of-bounds write vulnerability and potentially execute malicious code on the targeted system.
Mitigation and Prevention
Learn how to protect your systems from CVE-2021-21950 and secure your environment against such critical vulnerabilities.
Immediate Steps to Take
Ensure network security measures are in place, consider network segmentation, and monitor network traffic for any suspicious activity.
Long-Term Security Practices
Regularly update and patch all software, implement intrusion detection systems, and conduct security assessments to identify and address vulnerabilities.
Patching and Updates
Stay informed about security advisories from Anker and apply patches promptly to mitigate the risk associated with CVE-2021-21950.