CVE-2019-3922 : Vulnerability Insights and Analysis

A security issue has been identified in the Alcatel Lucent I-240W-Q GPON ONT firmware version 3FE54567BOZJ19, allowing a remote attacker to execute a stack buffer overflow attack.

Understanding CVE-2019-3922

This CVE involves a vulnerability in the Alcatel Lucent I-240W-Q GPON ONT firmware version 3FE54567BOZJ19 that enables remote attackers to potentially run arbitrary code on the affected device.

What is CVE-2019-3922?

The CVE-2019-3922 vulnerability allows an unauthenticated remote attacker to exploit a stack buffer overflow by sending a specially crafted HTTP POST request to the /GponForm/fsetup_Form endpoint.

The Impact of CVE-2019-3922

If successfully exploited, the attacker can execute arbitrary code on the targeted device, compromising its security and potentially gaining unauthorized access.

Technical Details of CVE-2019-3922

This section provides more technical insights into the vulnerability.

Vulnerability Description

The vulnerability in the Alcatel Lucent I-240W-Q GPON ONT firmware version 3FE54567BOZJ19 allows for a stack buffer overflow, which can be triggered by a specific HTTP POST request.

Affected Systems and Versions

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

Exploitation Mechanism

The vulnerability is exploited by sending a crafted HTTP POST request to the /GponForm/fsetup_Form endpoint, enabling the attacker to execute arbitrary code.

Mitigation and Prevention

Protecting systems from CVE-2019-3922 requires immediate actions and long-term security practices.

Immediate Steps to Take

Apply security patches provided by the vendor promptly.
Implement network segmentation to limit the impact of potential attacks.
Monitor network traffic for any suspicious activities.

Long-Term Security Practices

Regularly update firmware and software to address known vulnerabilities.
Conduct security assessments and penetration testing to identify and mitigate risks.
Educate users and administrators about cybersecurity best practices.

Patching and Updates

Regularly check for security updates and patches from the vendor to address the CVE-2019-3922 vulnerability.