CVE-2019-20030 : What You Need to Know

A vulnerability in the NEC UM8000 voicemail system allows attackers with knowledge of the modem access number to gain unauthorized access to the LAN port using SSH tunneling or standard Linux utilities.

Understanding CVE-2019-20030

This CVE affects all versions of the NEC UM8000 voicemail system.

What is CVE-2019-20030?

Attackers can exploit this vulnerability to access the LAN port of the system by leveraging the modem access number and using SSH tunneling or standard Linux utilities.

The Impact of CVE-2019-20030

Unauthorized individuals can gain access to the LAN port of the NEC UM8000 voicemail system, potentially leading to further network compromise and data breaches.

Technical Details of CVE-2019-20030

This section provides detailed technical information about the vulnerability.

Vulnerability Description

The vulnerability allows attackers with knowledge of the modem access number to utilize SSH tunneling or standard Linux utilities to access the LAN port of the NEC UM8000 voicemail system.

Affected Systems and Versions

Product: NEC UM8000 voicemail system
Vendor: NEC
Versions: All versions of the system are affected

Exploitation Mechanism

Attackers exploit the vulnerability by using the modem access number in conjunction with SSH tunneling or standard Linux utilities to gain unauthorized access to the LAN port.

Mitigation and Prevention

Protect your systems from CVE-2019-20030 with the following steps:

Immediate Steps to Take

Disable SSH access if not required
Monitor network traffic for any suspicious activity
Change default passwords and access credentials regularly

Long-Term Security Practices

Conduct regular security audits and assessments
Implement network segmentation to limit access to critical systems
Educate users on best practices for cybersecurity

Patching and Updates

Apply security patches and updates provided by NEC to address the vulnerability