CVE-2019-3914 : Exploit Details and Defense Strategies

A vulnerability has been discovered in the firmware version 02.01.00.05 of Verizon Fios Quantum Gateway (G1100), allowing a remote attacker to execute unauthorized commands on the affected device.

Understanding CVE-2019-3914

This CVE involves a remote command injection vulnerability in the Verizon Fios Quantum Gateway (G1100) firmware version 02.01.00.05, enabling a remote, authenticated attacker to execute arbitrary commands on the target device.

What is CVE-2019-3914?

The vulnerability in the firmware version of Verizon Fios Quantum Gateway (G1100) allows a remote attacker to manipulate the hostname when adding an access control rule for a specific network object, potentially leading to unauthorized command execution.

The Impact of CVE-2019-3914

Remote attackers can execute unauthorized commands on the affected device.
The attacker must be authenticated before exploiting this vulnerability.

Technical Details of CVE-2019-3914

This section provides detailed technical information about the CVE.

Vulnerability Description

The vulnerability allows remote, authenticated attackers to execute arbitrary commands by adding an access control rule with a crafted hostname.

Affected Systems and Versions

Product: Fios Quantum Gateway (G1100)
Vendor: Verizon
Firmware Version: 02.01.00.05

Exploitation Mechanism

Attackers can exploit this vulnerability by manipulating the hostname during the addition of an access control rule for a specific network object.

Mitigation and Prevention

Protecting systems from CVE-2019-3914 is crucial to maintaining security.

Immediate Steps to Take

Update the firmware to a patched version provided by Verizon.
Implement strong access control measures to prevent unauthorized access.

Long-Term Security Practices

Regularly monitor and audit network configurations for any unauthorized changes.
Conduct security training for users to recognize and report suspicious activities.

Patching and Updates

Apply security patches and updates promptly to mitigate the vulnerability and enhance system security.