CVE-2019-19356 Explained : Impact and Mitigation

The Netis WF2419 router is susceptible to authenticated Remote Code Execution (RCE) as root when accessed through its Web management page. This vulnerability has been identified in firmware versions V1.2.31805 and V2.2.36123. An attacker can exploit the tracert diagnostic tool to execute system commands as root due to insufficient user input sanitization.

Understanding CVE-2019-19356

This CVE involves a critical vulnerability in the Netis WF2419 router that allows attackers to execute commands as root through the router's Web management page.

What is CVE-2019-19356?

The CVE-2019-19356 vulnerability allows authenticated attackers to perform Remote Code Execution (RCE) as root on the Netis WF2419 router by exploiting the tracert diagnostic tool.

The Impact of CVE-2019-19356

Attackers can execute system commands as root on the affected router, potentially leading to complete control over the device.
Unauthorized access to sensitive information and network compromise are significant risks associated with this vulnerability.

Technical Details of CVE-2019-19356

This section provides detailed technical information about the CVE.

Vulnerability Description

The vulnerability in the Netis WF2419 router allows authenticated attackers to achieve Remote Code Execution (RCE) as root through the router's Web management page.

Affected Systems and Versions

Netis WF2419 router firmware versions V1.2.31805 and V2.2.36123 are affected by this vulnerability.

Exploitation Mechanism

Attackers exploit the tracert diagnostic tool on the router's Web management page to execute system commands as root due to inadequate user input sanitization.

Mitigation and Prevention

Protecting systems from CVE-2019-19356 requires immediate action and long-term security practices.

Immediate Steps to Take

Update the Netis WF2419 router firmware to the latest version that includes a patch for this vulnerability.
Restrict access to the router's Web management page to authorized users only.
Monitor network traffic for any suspicious activity that could indicate exploitation attempts.

Long-Term Security Practices

Regularly update router firmware and security patches to protect against known vulnerabilities.
Implement strong password policies and multi-factor authentication to enhance access control.

Patching and Updates

Apply patches provided by Netis for the WF2419 router to address the CVE-2019-19356 vulnerability.