CVE-2019-3918 : Security Advisory and Response

CVE-2019-3918 was published on February 27, 2019, and affects the Alcatel Lucent I-240W-Q GPON ONT firmware version 3FE54567BOZJ19. The vulnerability involves hardcoded credentials for Telnet and SSH interfaces.

Understanding CVE-2019-3918

This CVE identifies a security issue in the Alcatel Lucent I-240W-Q GPON ONT firmware version 3FE54567BOZJ19, where pre-programmed login details exist for Telnet and SSH interfaces.

What is CVE-2019-3918?

The vulnerability in CVE-2019-3918 pertains to the presence of hardcoded credentials in the Alcatel Lucent I-240W-Q GPON ONT firmware version 3FE54567BOZJ19, allowing unauthorized access to the device.

The Impact of CVE-2019-3918

The hardcoded credentials in the affected firmware version pose a significant security risk as they can be exploited by malicious actors to gain unauthorized access to the device, potentially compromising sensitive information and network security.

Technical Details of CVE-2019-3918

CVE-2019-3918 involves the following technical aspects:

Vulnerability Description

The Alcatel Lucent I-240W-Q GPON ONT firmware version 3FE54567BOZJ19 contains hardcoded credentials for both Telnet and SSH interfaces, making it vulnerable to unauthorized access.

Affected Systems and Versions

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

Exploitation Mechanism

The vulnerability can be exploited by attackers who are aware of the hardcoded credentials, enabling them to gain unauthorized access to the affected device.

Mitigation and Prevention

To address CVE-2019-3918 and enhance security measures, the following steps are recommended:

Immediate Steps to Take

Change default credentials immediately after device deployment.
Implement strong, unique passwords for all interfaces.
Regularly monitor and audit device access logs for suspicious activities.

Long-Term Security Practices

Conduct regular security assessments and penetration testing to identify vulnerabilities.
Keep firmware and software up to date to patch known security issues.

Patching and Updates

Apply patches or updates provided by the vendor to remove hardcoded credentials and enhance device security.