CVE-2021-45657 : Vulnerability Insights and Analysis

Certain NETGEAR devices are affected by server-side injection, impacting various router models.

Understanding CVE-2021-45657

This CVE involves server-side injection vulnerabilities affecting multiple NETGEAR router models.

What is CVE-2021-45657?

Server-side injection vulnerability impacting NETGEAR devices
Specifically affects models D6200, D7000, R6020, R6080, R6050, JR6150, R6120, R6220, R6230, R6260, R6800, R6900v2, R6700v2, R7450, AC2100, AC2400, AC2600, RBK40, RBR40, RBS40, RBK20, RBR20, RBS20, RBK50, RBR50, RBS50, RBS50Y, and WNR2020

The Impact of CVE-2021-45657

CVSS v3.1 Base Score: 7.1 (High)
Attack Complexity: Low
Attack Vector: Local
Confidentiality Impact: High
Integrity Impact: High
Privileges Required: Low
Scope: Unchanged
No User Interaction Required
Exploitation can lead to unauthorized access and potentially sensitive data exposure

Technical Details of CVE-2021-45657

This section delves into specific technical details of the CVE.

Vulnerability Description

Server-side injection vulnerability allows attackers to execute malicious code remotely on affected devices

Affected Systems and Versions

Multiple NETGEAR router models including D6200, D7000, R6020, R6080, and more
Versions specified in the descriptions: D6200 before 1.1.00.38, D7000 before 1.0.1.78, and more

Exploitation Mechanism

Attackers can exploit this vulnerability to inject and execute code on vulnerable NETGEAR devices

Mitigation and Prevention

Guidelines to mitigate and prevent exploitation of CVE-2021-45657.

Immediate Steps to Take

Update NETGEAR router firmware to the latest version available
Implement strong and unique passwords for router access
Consider firewall rules and network segmentation to limit exposure

Long-Term Security Practices

Regularly update router firmware and security patches
Conduct security assessments and audits for network devices
Educate users on secure configuration and best practices

Patching and Updates

NETGEAR has released patches addressing the server-side injection vulnerability
Stay informed about security advisories and updates from NETGEAR