CVE-2021-4228 : Security Advisory and Response

This article provides details about CVE-2021-4228, a vulnerability related to the use of hard-coded TLS certificate affecting Lanner Inc IAC-AST2500A standard firmware version 1.00.0.

Understanding CVE-2021-4228

This section delves into the impact and technical aspects of CVE-2021-4228.

What is CVE-2021-4228?

The CVE-2021-4228 vulnerability arises from the utilization of a hard-coded TLS certificate by default, enabling attackers to execute Man-in-the-Middle (MitM) attacks, even when HTTPS connections are in place. It particularly impacts Lanner Inc IAC-AST2500A standard firmware version 1.00.0.

The Impact of CVE-2021-4228

The impact of this vulnerability is rated as MEDIUM with a base score of 5.8. It can lead to confidentiality, integrity, and availability issues.

Technical Details of CVE-2021-4228

This section explores the vulnerability description, affected systems, and exploitation mechanism.

Vulnerability Description

The vulnerability originates from the hardcoded TLS certificate implementation, making MitM attacks feasible.

Affected Systems and Versions

Lanner Inc's IAC-AST2500A standard firmware version 1.00.0 is affected by this vulnerability.

Exploitation Mechanism

Attackers can exploit this vulnerability to intercept and manipulate communication between the affected device and the server.

Mitigation and Prevention

This section outlines the steps to mitigate and prevent the exploitation of CVE-2021-4228.

Immediate Steps to Take

Organizations are advised to patch the affected systems promptly and enforce secure communication practices.

Long-Term Security Practices

Implementing strong encryption protocols, regular security audits, and ensuring secure coding practices can bolster long-term security.

Patching and Updates

Regularly updating firmware, certificates, and security measures is crucial to prevent future vulnerabilities.