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CVE-2021-21953 : Security Advisory and Response

Learn about CVE-2021-21953, an authentication bypass vulnerability in Anker Eufy Homebase 2 2.1.6.9h allowing a man-in-the-middle attack for privilege escalation. Find mitigation steps and preventive measures.

An authentication bypass vulnerability exists in the process_msg() function of the home_security binary of Anker Eufy Homebase 2 2.1.6.9h, allowing a specially-crafted man-in-the-middle attack to gain increased privileges.

Understanding CVE-2021-21953

This CVE involves an authentication bypass vulnerability in Anker Eufy Homebase 2 2.1.6.9h, which can be exploited through a man-in-the-middle attack.

What is CVE-2021-21953?

The vulnerability is present in the process_msg() function of Anker Eufy Homebase 2 2.1.6.9h, enabling attackers to execute a man-in-the-middle attack for privilege escalation.

The Impact of CVE-2021-21953

With a CVSS base score of 7.7 (High), this vulnerability poses a significant threat by allowing attackers to bypass authentication and gain unauthorized access to the system, potentially compromising confidentiality and availability.

Technical Details of CVE-2021-21953

This section delves into the specific technical aspects of CVE-2021-21953.

Vulnerability Description

The vulnerability lies in the process_msg() function of the home_security binary of Anker Eufy Homebase 2 2.1.6.9h, facilitating an authentication bypass attack.

Affected Systems and Versions

Anker Eufy Homebase 2 version 2.1.6.9h is affected by this security flaw.

Exploitation Mechanism

Attackers can exploit this vulnerability through a specially-crafted man-in-the-middle attack to escalate their privileges.

Mitigation and Prevention

To safeguard systems against CVE-2021-21953, immediate actions and long-term security measures need to be implemented.

Immediate Steps to Take

Affected users should consider implementing network segmentation, ensuring secure communication channels, and monitoring for any suspicious activities.

Long-Term Security Practices

Regular security assessments, timely software updates, and employee training on detecting phishing attempts can enhance the overall security posture.

Patching and Updates

Anker Eufy Homebase 2 users should apply the latest security patches provided by the vendor to address this vulnerability effectively.

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