CVE-2020-35817 : Vulnerability Insights and Analysis

Certain NETGEAR devices are affected by stored XSS vulnerabilities that impact various router models.

Understanding CVE-2020-35817

This CVE involves stored Cross-Site Scripting (XSS) vulnerabilities in specific NETGEAR router models.

What is CVE-2020-35817?

Stored XSS vulnerabilities affect NETGEAR devices, including D7800, R7500v2, R7800, R8900, R9000, RAX120, RBK50, RBR50, RBS50, XR500, and XR700.

The Impact of CVE-2020-35817

CVSS Base Score: 6.1 (Medium Severity)
Attack Vector: Adjacent Network
Confidentiality Impact: High
Integrity Impact: High
Privileges Required: High

Technical Details of CVE-2020-35817

Stored XSS vulnerability details and affected systems.

Vulnerability Description

The vulnerability allows attackers to inject malicious scripts into web pages viewed by users, potentially leading to unauthorized actions.

Affected Systems and Versions

D7800 before 1.0.1.56
R7500v2 before 1.0.3.46
R7800 before 1.0.2.74
R8900 before 1.0.4.28
R9000 before 1.0.4.28
RAX120 before 1.0.0.78
RBK50 before 2.3.5.30
RBR50 before 2.3.5.30
RBS50 before 2.3.5.30
XR500 before 2.3.2.56
XR700 before 1.0.1.10

Exploitation Mechanism

Attackers with high privileges can exploit this vulnerability through adjacent network access without user interaction.

Mitigation and Prevention

Steps to mitigate and prevent exploitation of CVE-2020-35817.

Immediate Steps to Take

Update affected devices to the latest firmware versions.
Disable remote management if not required.
Regularly monitor for unusual activities on the network.

Long-Term Security Practices

Implement strong password policies.
Enable firewall rules to restrict unauthorized access.
Educate users about phishing and social engineering tactics.

Patching and Updates

Regularly check for firmware updates from NETGEAR and apply them promptly.