CVE-2021-45624 : Exploit Details and Defense Strategies

Certain NETGEAR devices are affected by command injection, allowing an unauthenticated attacker to execute commands on the affected systems. This vulnerability has a CVSS base score of 9.6, indicating a critical severity.

Understanding CVE-2021-45624

This CVE identifies a security issue in NETGEAR devices that can be exploited by attackers to perform command injections.

What is CVE-2021-45624?

The vulnerability allows unauthenticated attackers to execute arbitrary commands on affected NETGEAR devices, potentially leading to a complete compromise of the device.

The Impact of CVE-2021-45624

High Impact: Attackers can achieve high confidentiality, integrity, and availability impact on the affected devices.
Critical Severity: The CVSS base score of 9.6 designates this vulnerability as critical.

Technical Details of CVE-2021-45624

Affected devices and versions have specific details that users should be aware of.

Vulnerability Description

The vulnerability affects multiple NETGEAR devices, including D7000v2, D8500, R7000, R7100LG, R7900, R8000, XR300, R7000P, R8500, R6900P, and R8300, prior to certain firmware versions.

Affected Systems and Versions

Devices such as D7000v2, D8500, R7000, and others are vulnerable before specific firmware versions as listed in the description.

Exploitation Mechanism

Attackers can exploit this vulnerability by sending malicious commands to the affected devices, leveraging the lack of authentication requirements.

Mitigation and Prevention

Users and administrators can take immediate and long-term steps to mitigate the risks associated with CVE-2021-45624.

Immediate Steps to Take

Update affected devices to the latest firmware versions provided by NETGEAR.
Implement strong network access controls to restrict unauthorized access.
Monitor network traffic for any suspicious activity that may indicate exploitation attempts.

Long-Term Security Practices

Regularly review and update security configurations on NETGEAR devices.
Conduct security assessments and penetration testing to identify and address vulnerabilities proactively.

Patching and Updates

Stay informed about security advisories from NETGEAR and promptly apply patches and updates to address known vulnerabilities.