CVE-2021-37568 : Security Advisory and Response

This article provides detailed information about CVE-2021-37568, including its impact, technical details, and mitigation strategies.

Understanding CVE-2021-37568

CVE-2021-37568 relates to MediaTek microchips found in NETGEAR devices and others mishandling IEEE 1905 protocols.

What is CVE-2021-37568?

The vulnerability involves out-of-bounds write in affected chipsets like MT7603E, MT7613, MT7615, MT7622, MT7628, MT7629, MT7915 with software versions 2.0.2.

The Impact of CVE-2021-37568

With a CVSS base score of 8.2 (High Severity), the vulnerability poses a confidentiality impact as high, with low attack complexity and vector being network-based, affecting availability.

Technical Details of CVE-2021-37568

The specific details of the vulnerability include its description, affected systems, and exploitation mechanism.

Vulnerability Description

The vulnerability arises from the mishandling of IEEE 1905 protocols leading to out-of-bounds write in MediaTek chipsets.

Affected Systems and Versions

Chipsets impacted are MT7603E, MT7613, MT7615, MT7622, MT7628, MT7629, MT7915 with software version 2.0.2.

Exploitation Mechanism

The vulnerability can be exploited through network interactions targeting the affected chipsets.

Mitigation and Prevention

Understanding how to address and prevent CVE-2021-37568 is crucial for maintaining system security.

Immediate Steps to Take

It is recommended to apply security patches provided by vendors to address the vulnerability promptly.

Long-Term Security Practices

Regular security assessments, network monitoring, and timely updates are crucial for maintaining a secure environment.

Patching and Updates

Keeping systems up to date with the latest firmware and security patches can help mitigate the risk of exploitation.