CVE-2019-16533 : Security Advisory and Response

DrayTek Vigor2925 devices with firmware version 3.8.4.3 are vulnerable to an incorrect access control issue in the loginset.htm file, leading to cross-site scripting attacks.

Understanding CVE-2019-16533

This CVE involves a security vulnerability in DrayTek Vigor2925 devices that can be exploited for cross-site scripting attacks.

What is CVE-2019-16533?

The CVE-2019-16533 vulnerability is caused by incorrect access control in the loginset.htm file of DrayTek Vigor2925 devices with firmware version 3.8.4.3, allowing attackers to execute cross-site scripting attacks.

The Impact of CVE-2019-16533

The presence of this vulnerability can lead to the initiation of cross-site scripting attacks on affected devices, potentially compromising user data and system integrity.

Technical Details of CVE-2019-16533

DrayTek Vigor2925 devices with firmware version 3.8.4.3 are susceptible to the following:

Vulnerability Description

An incorrect access control vulnerability in the loginset.htm file that enables cross-site scripting attacks.

Affected Systems and Versions

Product: DrayTek Vigor2925
Firmware Version: 3.8.4.3

Exploitation Mechanism

Attackers can exploit the vulnerability in the loginset.htm file to inject and execute malicious scripts, leading to cross-site scripting attacks.

Mitigation and Prevention

It is crucial to take immediate steps to address and prevent the exploitation of CVE-2019-16533.

Immediate Steps to Take

Disable remote access if not required
Monitor network traffic for any suspicious activities
Implement firewall rules to restrict unauthorized access

Long-Term Security Practices

Regularly update firmware and security patches
Conduct security audits and assessments periodically
Educate users on safe browsing practices and phishing awareness

Patching and Updates

Refer to security advisories and updates provided by DrayTek to patch the vulnerability and enhance device security.