CVE-2017-18821 Explained : Impact and Mitigation

A Stored XSS vulnerability affecting multiple NETGEAR devices, including M4300 series switches.

Understanding CVE-2017-18821

This CVE involves a Stored XSS vulnerability impacting various NETGEAR devices.

What is CVE-2017-18821?

Stored XSS vulnerability affects several NETGEAR devices, including M4300 series switches.

The Impact of CVE-2017-18821

CVSS Base Score: 5.2 (Medium)
Attack Vector: Local
Privileges Required: High
User Interaction: Required
Scope: Changed
Low impact on confidentiality, integrity, and availability.

Technical Details of CVE-2017-18821

Stored XSS vulnerability details and affected systems.

Vulnerability Description

Stored XSS vulnerability in NETGEAR devices

Affected Systems and Versions

M4300-28G before 12.0.2.15
M4300-52G before 12.0.2.15
M4300-28G-POE+ before 12.0.2.15
M4300-52G-POE+ before 12.0.2.15
M4300-8X8F before 12.0.2.15
M4300-12X12F before 12.0.2.15
M4300-24X24F before 12.0.2.15
M4300-24X before 12.0.2.15
M4300-48X before 12.0.2.15
M4200 before 12.0.2.15

Exploitation Mechanism

Attack Complexity: Low

Mitigation and Prevention

Steps to mitigate and prevent the vulnerability.

Immediate Steps to Take

Update affected devices to version 12.0.2.15 or later
Monitor for any suspicious activities

Long-Term Security Practices

Regularly update firmware and security patches
Conduct security audits and assessments

Patching and Updates

Apply patches and updates provided by NETGEAR for the affected devices.