CVE-2021-37561 Explained : Impact and Mitigation
Learn about CVE-2021-37561, a critical vulnerability in MediaTek microchips impacting NETGEAR devices, with high confidentiality impact. Explore technical details, affected versions, and mitigation strategies.
A detailed overview of CVE-2021-37561, a vulnerability related to the mishandling of the WPS (Wi-Fi Protected Setup) protocol in MediaTek microchips affecting NETGEAR devices.
Understanding CVE-2021-37561
This section provides insights into the impact, technical details, and mitigation strategies related to CVE-2021-37561.
What is CVE-2021-37561?
CVE-2021-37561 involves MediaTek microchips, commonly found in NETGEAR devices, mishandling the WPS protocol, leading to potential security risks. The vulnerability is categorized by an out-of-bounds write affecting specific chipsets and software versions.
The Impact of CVE-2021-37561
With a CVSS base score of 8.2 (High Severity), this vulnerability poses a significant risk, especially in terms of confidentiality impact. Attackers can potentially exploit this flaw to compromise sensitive information.
Technical Details of CVE-2021-37561
This section delves into the specific technical aspects of the vulnerability.
Vulnerability Description
The vulnerability arises due to the mishandling of the WPS protocol in MediaTek microchips, including chipsets like MT7603E, MT7610, MT7612, among others, and software version 7.4.0.0. It results in an out-of-bounds write, opening avenues for exploitation.
Affected Systems and Versions
Devices utilizing MediaTek chipsets, particularly NETGEAR products, are vulnerable to this issue. Affected software versions include 7.4.0.0.
Exploitation Mechanism
Exploiting this vulnerability involves manipulating the WPS protocol through network interactions, thus bypassing certain security measures and gaining unauthorized access.
Mitigation and Prevention
This section outlines the necessary steps to mitigate and prevent exploitation of CVE-2021-37561.
Immediate Steps to Take
Users and administrators are advised to implement security patches and updates provided by both MediaTek and NETGEAR to address this vulnerability promptly.
Long-Term Security Practices
Incorporating robust network security practices, such as disabling WPS where not necessary, implementing network segmentation, and regular security audits, can enhance overall security posture.
Patching and Updates
Regularly monitor for security advisories from MediaTek and NETGEAR to promptly apply relevant patches and updates to safeguard against potential exploits.