CVE-2019-3919 : Exploit Details and Defense Strategies

The Alcatel Lucent I-240W-Q GPON ONT with firmware version 3FE54567BOZJ19 is susceptible to a command injection vulnerability, enabling remote authenticated attackers to execute arbitrary commands.

Understanding CVE-2019-3919

This CVE involves a security flaw in the Alcatel Lucent I-240W-Q GPON ONT that allows attackers to perform command injection.

What is CVE-2019-3919?

The vulnerability in the Alcatel Lucent I-240W-Q GPON ONT, with firmware version 3FE54567BOZJ19, permits remote authenticated attackers to execute commands by sending a specially crafted HTTP request to a specific endpoint.

The Impact of CVE-2019-3919

This vulnerability can be exploited by attackers to run arbitrary commands on the affected device, potentially leading to unauthorized access, data theft, or further compromise of the system.

Technical Details of CVE-2019-3919

The technical aspects of the CVE-2019-3919 vulnerability.

Vulnerability Description

The Alcatel Lucent I-240W-Q GPON ONT, when running firmware version 3FE54567BOZJ19, is vulnerable to command injection through a manipulated HTTP request.

Affected Systems and Versions

Product: Alcatel Lucent I-240W-Q GPON ONT
Vendor: Tenable
Firmware Version: 3FE54567BOZJ19

Exploitation Mechanism

Attackers can exploit this vulnerability by sending a specially crafted HTTP request to the /GponForm/usb_restore_Form?script/ endpoint.

Mitigation and Prevention

Protecting systems from CVE-2019-3919.

Immediate Steps to Take

Apply patches or updates provided by the vendor to address the vulnerability.
Monitor network traffic for any suspicious activity targeting the affected device.

Long-Term Security Practices

Regularly update firmware and software to mitigate potential security risks.
Implement network segmentation to limit the impact of successful attacks.

Patching and Updates

Ensure timely installation of security patches and firmware updates to safeguard against known vulnerabilities.