CVE-2019-20726 Explained : Impact and Mitigation

A vulnerability in certain NETGEAR devices allows authenticated users to execute commands. This impacts various models including D3600, D6000, D6100, R7800, R8900, R9000, WNDR3700v4, WNDR4300v1, WNDR4300v2, WNDR4500v3, WNR2000v5, and XR500.

Understanding CVE-2019-20726

This CVE identifies a command injection vulnerability in specific NETGEAR devices.

What is CVE-2019-20726?

CVE-2019-20726 is a security vulnerability that enables authenticated users to run commands on affected NETGEAR devices.

The Impact of CVE-2019-20726

The vulnerability has a CVSS base score of 6.8, with high impacts on confidentiality, integrity, and availability. It requires high privileges and has a low attack complexity.

Technical Details of CVE-2019-20726

This section provides detailed technical information about the vulnerability.

Vulnerability Description

The vulnerability allows authenticated users to execute commands on affected NETGEAR devices.

Affected Systems and Versions

D3600 (before version 1.0.0.75)
D6000 (before version 1.0.0.75)
D6100 (before version 1.0.0.63)
R7800 (before version 1.0.2.52)
R8900 (before version 1.0.4.2)
R9000 (before version 1.0.4.2)
WNDR3700v4 (before version 1.0.2.102)
WNDR4300v1 (before version 1.0.2.104)
WNDR4300v2 (before version 1.0.0.58)
WNDR4500v3 (before version 1.0.0.58)
WNR2000v5 (before version 1.0.0.68)
XR500 (before version 2.3.2.32)

Exploitation Mechanism

The vulnerability can be exploited by authenticated users to execute arbitrary commands on the affected devices.

Mitigation and Prevention

Protecting systems from CVE-2019-20726 requires immediate actions and long-term security practices.

Immediate Steps to Take

Update affected devices to the latest firmware versions.
Monitor network traffic for any suspicious activities.
Restrict access to vulnerable devices.

Long-Term Security Practices

Regularly update firmware and security patches.
Implement strong authentication mechanisms.
Conduct security audits and assessments periodically.

Patching and Updates

NETGEAR has released patches for the affected devices. Ensure timely installation of these patches to mitigate the vulnerability.