CVE-2021-37571 Explained : Impact and Mitigation
Learn about CVE-2021-37571, a vulnerability in MediaTek microchips impacting NETGEAR devices. Explore its impact, affected systems, and mitigation strategies here.
MediaTek microchips, as used in NETGEAR devices through 2021-11-11 and other devices, mishandle IEEE 1905 protocols, leading to an out-of-bounds write vulnerability.
Understanding CVE-2021-37571
This article delves into the impact, technical details, and mitigation strategies related to CVE-2021-37571.
What is CVE-2021-37571?
CVE-2021-37571 involves MediaTek microchips found in NETGEAR devices and other products mishandling IEEE 1905 protocols, resulting in an out-of-bounds write vulnerability.
The Impact of CVE-2021-37571
The vulnerability carries a CVSS base score of 8.2, highlighting its severity. It poses a high confidentiality impact and a low availability impact but does not require any special privileges for exploitation.
Technical Details of CVE-2021-37571
This section outlines the vulnerability description, affected systems, and the exploitation mechanism.
Vulnerability Description
The affected chipsets include MT7603E, MT7613, MT7615, MT7622, MT7628, MT7629, MT7915, with software versions 2.0.2 being vulnerable to the out-of-bounds write issue.
Affected Systems and Versions
NETGEAR devices up to 2021-11-11 and other products utilizing the mentioned chipsets and software version are susceptible to this vulnerability.
Exploitation Mechanism
The vulnerability can be exploited remotely with a low attack complexity and no privileges required, making it a critical security concern.
Mitigation and Prevention
In response to CVE-2021-37571, immediate actions and long-term security practices are recommended to mitigate the risk of exploitation.
Immediate Steps to Take
Users and organizations should apply security patches promptly, restrict network access, and monitor for any suspicious activities.
Long-Term Security Practices
Implementing network segmentation, regularly updating software, and conducting security audits can enhance overall security posture.
Patching and Updates
Stay informed about security bulletins and updates released by NETGEAR and MediaTek to address CVE-2021-37571.