CVE-2021-45607 : Vulnerability Insights and Analysis

Certain NETGEAR devices are affected by a stack-based buffer overflow vulnerability that can be exploited by an authenticated user on various router models.

Understanding CVE-2021-45607

This CVE describes a critical vulnerability impacting specific NETGEAR routers, potentially leading to unauthorized access and control of the affected devices.

What is CVE-2021-45607?

The vulnerability involves a stack-based buffer overflow that allows an authenticated attacker to execute arbitrary code on affected devices. The issue affects several NETGEAR router models before specific firmware versions.

The Impact of CVE-2021-45607

The vulnerability has a CVSS v3.1 base score of 6.8 (Medium severity) with high impacts on confidentiality, integrity, and availability. Exploitation can result in complete compromise of the device, potentially allowing attackers to take full control.

Technical Details of CVE-2021-45607

This section provides detailed technical information about the vulnerability.

Vulnerability Description

The stack-based buffer overflow vulnerability allows an authenticated user to execute malicious code, posing a significant security risk to the impacted devices.

Affected Systems and Versions

The following NETGEAR router models are affected:

R6400v2 before 1.0.4.118
R6700v3 before 1.0.4.118
R6900P before 1.3.3.140
R7000 before 1.0.11.126
R7000P before 1.3.3.140
RAX200 before 1.0.5.126
RAX75 before 1.0.5.126
RAX80 before 1.0.5.126

Exploitation Mechanism

To exploit this vulnerability, an authenticated user can craft a specific request to trigger the buffer overflow, potentially gaining unauthorized access and control of the device.

Mitigation and Prevention

It is crucial to take immediate steps to secure the affected devices and prevent exploitation.

Immediate Steps to Take

Update the firmware of the affected NETGEAR routers to the patched versions provided by the vendor.
Apply strong and unique passwords to prevent unauthorized access.
Monitor network traffic for any suspicious activities that might indicate exploitation of the vulnerability.

Long-Term Security Practices

Regularly check for firmware updates and apply them promptly.
Conduct security audits to identify and address any potential vulnerabilities in the network infrastructure.

Patching and Updates

Ensure that all NETGEAR routers are running the latest firmware versions to mitigate the CVE-2021-45607 vulnerability and enhance overall security.