CVE-2019-20723 : Security Advisory and Response

A stack-based buffer overflow vulnerability affects certain NETGEAR devices, allowing exploitation by authenticated users.

Understanding CVE-2019-20723

What is CVE-2019-20723?

This CVE identifies a stack-based buffer overflow vulnerability in specific NETGEAR devices, potentially exploited by authenticated users.

The Impact of CVE-2019-20723

The vulnerability has a CVSS base score of 6.8, with high impacts on availability, confidentiality, and integrity, requiring high privileges but no user interaction.

Technical Details of CVE-2019-20723

Vulnerability Description

The vulnerability allows authenticated users to trigger a stack-based buffer overflow on affected NETGEAR devices.

Affected Systems and Versions

D3600 (version prior to 1.0.0.75)
D6000 (version prior to 1.0.0.75)
D6100 (version prior to 1.0.0.63)
DM200 (version prior to 1.0.0.58)
Various other models listed in the provided description

Exploitation Mechanism

The vulnerability can be exploited by authenticated users to execute arbitrary code or crash the affected devices.

Mitigation and Prevention

Immediate Steps to Take

Apply security patches provided by NETGEAR for the affected devices.
Monitor for any unusual activities on the network.

Long-Term Security Practices

Regularly update firmware and software on all network devices.
Implement strong authentication mechanisms and access controls.
Conduct regular security audits and penetration testing.

Patching and Updates

Ensure that all affected NETGEAR devices are updated with the latest firmware and security patches.