CVE-2017-18751 Explained : Impact and Mitigation

Devices manufactured by NETGEAR are vulnerable to a stack-based buffer overflow. This vulnerability affects specific models including D7800, R6100, R7500, R7500v2, R7800, R9000, WNDR3700v4, WNDR4300, WNDR4300v2, and WNDR4500v3.

Understanding CVE-2017-18751

This CVE involves a stack-based buffer overflow vulnerability in NETGEAR devices, allowing unauthorized attackers to exploit it.

What is CVE-2017-18751?

The vulnerability in NETGEAR devices can lead to a stack-based buffer overflow, potentially exploited by unauthorized attackers.

The Impact of CVE-2017-18751

CVSS Score: 8.8 (High Severity)
Attack Complexity: Low
Attack Vector: Adjacent Network
Impact: High impact on Availability, Confidentiality, and Integrity

Technical Details of CVE-2017-18751

This section provides more in-depth technical details of the CVE.

Vulnerability Description

The vulnerability is a stack-based buffer overflow in certain NETGEAR devices, allowing unauthenticated attackers to exploit it.

Affected Systems and Versions

The specific models affected include:

D7800 (version before 1.0.1.28)
R6100 (version before 1.0.1.16)
R7500 (version before 1.0.0.112)
R7500v2 (version before 1.0.3.20)
R7800 (version before 1.0.2.36)
R9000 (version before 1.0.2.52)
WNDR3700v4 (version before 1.0.2.88)
WNDR4300 (version before 1.0.2.90)
WNDR4300v2 (version before 1.0.0.48)
WNDR4500v3 (version before 1.0.0.48)

Exploitation Mechanism

The vulnerability can be exploited by unauthorized attackers through a stack-based buffer overflow in the affected NETGEAR devices.

Mitigation and Prevention

To address CVE-2017-18751, follow these steps:

Immediate Steps to Take

Update affected devices to the latest firmware versions.
Implement network segmentation to minimize the attack surface.
Monitor network traffic for any suspicious activity.

Long-Term Security Practices

Regularly update firmware and security patches.
Conduct security assessments and penetration testing.

Patching and Updates

NETGEAR has released patches for the affected devices. Ensure all devices are updated to the latest firmware versions.