CVE-2021-45620 : What You Need to Know

Certain NETGEAR devices are affected by command injection, allowing unauthenticated attackers to exploit vulnerabilities in multiple models.

Understanding CVE-2021-45620

This CVE pertains to command injection vulnerability in NETGEAR devices, potentially leading to severe consequences for affected systems.

What is CVE-2021-45620?

The CVE-2021-45620 vulnerability involves command injection by unauthenticated attackers targeting various NETGEAR devices, which can compromise system integrity and confidentiality.

The Impact of CVE-2021-45620

The vulnerability has a critical severity rating with high impact on availability, confidentiality, and integrity of affected systems, highlighting the urgency of addressing this issue.

Technical Details of CVE-2021-45620

This section delves into specific technical details of the CVE to facilitate understanding and remediation.

Vulnerability Description

The vulnerability allows unauthenticated attackers to execute commands on vulnerable NETGEAR devices, potentially leading to unauthorized access and control.

Affected Systems and Versions

The following NETGEAR devices and versions are known to be affected by this vulnerability:

CBR40 before 2.5.0.24
R6700v3 before 1.0.4.106
R7960P before 1.4.2.84
XR300 before 1.0.3.68 (And many more, as listed in the CVE description.)

Exploitation Mechanism

Attackers exploit this vulnerability via adjacent network access, requiring no user interaction, and with low complexity, to achieve high impacts on system availability, confidentiality, and integrity.

Mitigation and Prevention

Protecting systems from CVE-2021-45620 requires immediate actions and long-term security practices to safeguard against potential threats.

Immediate Steps to Take

Apply security patches provided by NETGEAR for the affected devices immediately.
Restrict network access to vulnerable devices.
Monitor network traffic for any suspicious activities indicating exploitation of this vulnerability.

Long-Term Security Practices

Regularly update firmware and security patches for all network devices.
Implement network segmentation to isolate vulnerable devices from critical systems.
Conduct regular security audits and penetration testing to identify and address vulnerabilities.

Patching and Updates

NETGEAR has released security updates for the affected devices; ensure timely application of these patches to mitigate the risks associated with CVE-2021-45620.