CVE-2017-18827 : Vulnerability Insights and Analysis

Several NETGEAR devices are susceptible to a stored XSS vulnerability affecting specific device models.

Understanding CVE-2017-18827

This CVE identifies a stored XSS vulnerability in various NETGEAR devices, potentially allowing attackers to execute malicious scripts.

What is CVE-2017-18827?

The vulnerability allows attackers to store malicious scripts on affected devices, which can be executed when unsuspecting users access the compromised device.

The Impact of CVE-2017-18827

CVSS Base Score: 5.2 (Medium Severity)
Attack Vector: Local
Privileges Required: High
User Interaction: Required
Scope: Changed
Confidentiality, Integrity, and Availability Impact: Low

Technical Details of CVE-2017-18827

This section provides more technical insights into the vulnerability.

Vulnerability Description

The vulnerability allows for the storage and execution of malicious scripts on vulnerable NETGEAR devices.

Affected Systems and Versions

The following NETGEAR device models are affected:

M4300-28G (versions prior to 12.0.2.15)
M4300-52G (versions prior to 12.0.2.15)
M4300-28G-POE+ (versions prior to 12.0.2.15)
M4300-52G-POE+ (versions prior to 12.0.2.15)
M4300-8X8F (versions prior to 12.0.2.15)
M4300-12X12F (versions prior to 12.0.2.15)
M4300-24X24F (versions prior to 12.0.2.15)
M4300-24X (versions prior to 12.0.2.15)
M4300-48X (versions prior to 12.0.2.15)
M4200 (versions prior to 12.0.2.15)

Exploitation Mechanism

Attackers with high privileges can exploit this vulnerability by storing malicious scripts on the affected devices and triggering their execution.

Mitigation and Prevention

Protecting your systems from CVE-2017-18827 is crucial to maintaining security.

Immediate Steps to Take

Update affected devices to version 12.0.2.15 or later to patch the vulnerability.
Regularly monitor and restrict access to vulnerable devices.

Long-Term Security Practices

Implement network segmentation to limit the impact of potential attacks.
Educate users on safe browsing practices and the risks of executing unknown scripts.

Patching and Updates

Stay informed about security advisories from NETGEAR and promptly apply patches to address known vulnerabilities.