CVE-2018-21216 Explained : Impact and Mitigation

A buffer overflow vulnerability affects specific models of NETGEAR devices, potentially exploited by unauthorized attackers. This vulnerability impacts the D3600, D6000, D6100, and R6100 devices.

Understanding CVE-2018-21216

This CVE involves a critical buffer overflow vulnerability in certain NETGEAR devices, posing a significant security risk.

What is CVE-2018-21216?

CVE-2018-21216 is a buffer overflow vulnerability that can be exploited by unauthorized attackers on specific NETGEAR device models.

The Impact of CVE-2018-21216

The vulnerability has a high severity level, affecting confidentiality, integrity, and availability of the impacted devices.

Technical Details of CVE-2018-21216

This section provides in-depth technical insights into the CVE-2018-21216 vulnerability.

Vulnerability Description

The vulnerability allows unauthorized attackers to trigger a buffer overflow on NETGEAR devices, potentially leading to a security breach.

Affected Systems and Versions

NETGEAR D3600 prior to version 1.0.0.67
NETGEAR D6000 prior to version 1.0.0.67
NETGEAR D6100 prior to version 1.0.0.56
NETGEAR R6100 prior to version 1.0.1.20

Exploitation Mechanism

Attack Complexity: Low
Attack Vector: Adjacent Network
Privileges Required: None
User Interaction: None
Scope: Unchanged
Vector String: CVSS:3.0/AC:L/AV:A/A:H/C:H/I:H/PR:N/S:U/UI:N

Mitigation and Prevention

Protecting your systems from CVE-2018-21216 is crucial to maintaining security.

Immediate Steps to Take

Update affected devices to the latest firmware versions provided by NETGEAR.
Implement network segmentation to limit the impact of potential attacks.

Long-Term Security Practices

Regularly monitor security advisories from NETGEAR and apply patches promptly.
Conduct security assessments and penetration testing to identify and address vulnerabilities.

Patching and Updates

Ensure all NETGEAR devices are running the latest firmware versions to mitigate the CVE-2018-21216 vulnerability.