CVE-2019-20048 : Security Advisory and Response

A vulnerability has been identified in Alcatel-Lucent OmniVista 8770 devices prior to version 4.1.2 that allows an attacker to gain remote code execution.

Understanding CVE-2019-20048

This CVE describes a security flaw in Alcatel-Lucent OmniVista 8770 devices that can be exploited by an authenticated attacker with elevated privileges.

What is CVE-2019-20048?

The vulnerability in Alcatel-Lucent OmniVista 8770 devices allows an attacker to upload a PHP file through the Web Directory component on port 389, leading to remote code execution as the SYSTEM user.

The Impact of CVE-2019-20048

The exploitation of this vulnerability can result in unauthorized remote code execution, potentially compromising the affected system's integrity and confidentiality.

Technical Details of CVE-2019-20048

This section provides more technical insights into the vulnerability.

Vulnerability Description

An authenticated attacker with elevated privileges can upload a PHP file on Alcatel-Lucent OmniVista 8770 devices, enabling remote code execution as the SYSTEM user.

Affected Systems and Versions

Alcatel-Lucent OmniVista 8770 devices before version 4.1.2

Exploitation Mechanism

The vulnerability can be exploited by an attacker who is authenticated and has elevated privileges within the Web Directory component on port 389 to upload a malicious PHP file, leading to remote code execution.

Mitigation and Prevention

Protective measures to mitigate the risks associated with CVE-2019-20048.

Immediate Steps to Take

Upgrade Alcatel-Lucent OmniVista 8770 devices to version 4.1.2 or later to eliminate the vulnerability.
Monitor network traffic for any suspicious activities.
Restrict access to the Web Directory component to authorized personnel only.

Long-Term Security Practices

Regularly update and patch software to address known vulnerabilities.
Conduct security training for personnel to enhance awareness of potential threats.

Patching and Updates

Apply security patches provided by the vendor promptly to address security vulnerabilities and enhance system security.