CVE-2018-21167 : Vulnerability Insights and Analysis

Stored XSS vulnerabilities have been identified in various NETGEAR devices including D6100, DM200, EX2700, EX6100v2, EX6150v2, EX6200v2, EX6400, EX7300, EX8000, R6100, R7500, R7800, R8900, R9000, WN2000RPTv3, WN3000RPv3, WN3100RPv2, WNDR3700v4, WNDR4300, WNDR4300v2, WNDR4500v3, and WNR2000v5.

Understanding CVE-2018-21167

This CVE involves stored XSS vulnerabilities in various NETGEAR devices.

What is CVE-2018-21167?

Stored XSS vulnerabilities have been found in multiple NETGEAR devices, potentially allowing attackers to execute malicious scripts in the context of a user's browser.

The Impact of CVE-2018-21167

The vulnerability has a CVSS base score of 4.8, indicating a medium severity issue. It requires high privileges for exploitation and can lead to low confidentiality and integrity impacts.

Technical Details of CVE-2018-21167

This section provides more technical insights into the CVE.

Vulnerability Description

The vulnerability allows for stored XSS attacks on the affected NETGEAR devices, enabling threat actors to inject and execute malicious scripts.

Affected Systems and Versions

D6100 (version prior to 1.0.0.57)
DM200 (version prior to 1.0.0.50)
EX2700 (version prior to 1.0.1.32)
and more (refer to the provided list for all affected devices and versions).

Exploitation Mechanism

The vulnerability can be exploited by an attacker with high privileges to inject and execute malicious scripts on the affected devices.

Mitigation and Prevention

Protecting systems from CVE-2018-21167 is crucial to ensure security.

Immediate Steps to Take

Update the firmware of affected NETGEAR devices to the latest versions.
Monitor network traffic for any suspicious activities.
Implement strong password policies for device access.

Long-Term Security Practices

Regularly update and patch all network devices.
Conduct security audits and penetration testing to identify vulnerabilities.
Educate users about safe browsing practices and potential threats.
Consider implementing network segmentation to limit the impact of potential attacks.
Utilize security tools like web application firewalls to detect and prevent XSS attacks.

Patching and Updates

NETGEAR has released patches for the affected devices to address the stored XSS vulnerabilities. Ensure timely installation of these patches to mitigate the risk of exploitation.