CVE-2018-21228 : Security Advisory and Response

NETGEAR devices are susceptible to command injection by authenticated users, impacting various models such as D7800, EX6100v2, EX6150v2, and more.

Understanding CVE-2018-21228

This CVE involves a vulnerability in NETGEAR devices that allows authenticated users to perform command injection, affecting multiple models.

What is CVE-2018-21228?

The vulnerability enables authenticated users to execute commands on affected NETGEAR devices, compromising their functionality.

The Impact of CVE-2018-21228

CVSS Score: 6.8 (Medium Severity)
Attack Complexity: Low
Attack Vector: Adjacent Network
Impact: High availability, confidentiality, and integrity
Privileges Required: High
User Interaction: None

Technical Details of CVE-2018-21228

This section provides detailed technical information about the CVE.

Vulnerability Description

The vulnerability allows authenticated users to perform command injection on certain NETGEAR devices, potentially leading to unauthorized access and control.

Affected Systems and Versions

The following models are impacted:

D7800 (version before 1.0.1.34)
EX6100v2 (version before 1.0.1.50)
EX6150v2 (version before 1.0.1.50)
EX6200v2 (version before 1.0.1.44)
EX6400 (version before 1.0.1.60)
EX7300 (version before 1.0.1.60)
R6100 (version before 1.0.1.16)
R7500 (version before 1.0.0.110)
R7800 (version before 1.0.2.32)
R9000 (version before 1.0.2.30)
WN3000RPv3 (version before 1.0.2.50)
WNDR4300v2 (version before 1.0.0.50)
WNDR4500v3 (version before 1.0.0.50)

Exploitation Mechanism

The vulnerability can be exploited by authenticated users to inject and execute malicious commands on the affected NETGEAR devices.

Mitigation and Prevention

Protecting systems from CVE-2018-21228 is crucial to prevent unauthorized access and potential compromise.

Immediate Steps to Take

Update affected devices to the latest firmware versions provided by NETGEAR.
Implement strong authentication mechanisms to prevent unauthorized access.
Monitor network traffic for any suspicious activities.

Long-Term Security Practices

Regularly update and patch all network devices to address known vulnerabilities.
Conduct security audits and assessments to identify and mitigate potential risks.

Patching and Updates

NETGEAR has released patches for the affected models. Ensure timely installation of these patches to secure the devices.