CVE-2018-21100 : What You Need to Know

Devices of the model NETGEAR R7800 with software version prior to 1.0.2.60 are vulnerable to command injection when used by an authenticated user.

Understanding CVE-2018-21100

NETGEAR R7800 devices are susceptible to command injection by authenticated users, potentially leading to high impact.

What is CVE-2018-21100?

CVE-2018-21100 is a vulnerability affecting NETGEAR R7800 devices with software versions earlier than 1.0.2.60, allowing authenticated users to execute commands.

The Impact of CVE-2018-21100

The vulnerability has a CVSS base score of 7.6 (High), with high impact on availability and integrity, and low impact on confidentiality.

Technical Details of CVE-2018-21100

NETGEAR R7800 devices are affected by command injection, posing a risk to system integrity and availability.

Vulnerability Description

The vulnerability allows authenticated users to inject commands into the system, potentially leading to unauthorized actions.

Affected Systems and Versions

Device Model: NETGEAR R7800
Software Version: < 1.0.2.60

Exploitation Mechanism

Attack Complexity: Low
Attack Vector: Adjacent Network
Privileges Required: Low
User Interaction: None

Mitigation and Prevention

Steps to address and prevent exploitation of CVE-2018-21100.

Immediate Steps to Take

Update the NETGEAR R7800 device to version 1.0.2.60 or later.
Restrict user access and permissions to minimize the impact of potential command injections.

Long-Term Security Practices

Regularly monitor and audit device logs for any suspicious activities.
Implement network segmentation to isolate critical devices from potential threats.

Patching and Updates

Apply security patches and firmware updates provided by NETGEAR to address the vulnerability.