CVE-2021-45549 : Exploit Details and Defense Strategies

Certain NETGEAR devices are affected by command injection, potentially leading to high impact vulnerabilities on various router models.

Understanding CVE-2021-45549

This CVE involves authenticated users injecting commands into affected NETGEAR devices, impacting multiple router models.

What is CVE-2021-45549?

The CVE-2021-45549 vulnerability allows authenticated users to inject commands into specific NETGEAR devices, potentially leading to severe consequences.

The Impact of CVE-2021-45549

The impact of this vulnerability is rated as high, affecting integrity, confidentiality, and availability, with a CVSS base score of 8.4.

Technical Details of CVE-2021-45549

This section delves into the technical aspects of the CVE.

Vulnerability Description

The vulnerability involves command injection by authenticated users on various NETGEAR router models.

Affected Systems and Versions

The following NETGEAR devices are affected:

LAX20 before 1.1.6.28
MK62 before 1.1.6.122
MR60 before 1.1.6.122
and more (refer to the description for full list)

Exploitation Mechanism

Attack Vector: ADJACENT_NETWORK
Privileges Required: HIGH
User Interaction: NONE
Scope: CHANGED

Mitigation and Prevention

Protecting against this vulnerability is crucial to ensure the security of NETGEAR devices.

Immediate Steps to Take

Apply the latest security patches provided by NETGEAR
Implement network segmentation to limit attack surface
Monitor network traffic for any suspicious activities

Long-Term Security Practices

Regularly update firmware and software on NETGEAR devices
Conduct security audits and penetration testing to identify vulnerabilities
Educate users on secure practices to prevent unauthorized access

Patching and Updates

NETGEAR has released patches for the affected devices to address the command injection vulnerability.