CVE-2019-15806 Explained : Impact and Mitigation

Devices like the CommScope ARRIS TR4400, which have firmware up to version A1.00.004-180301, are at risk of unauthorized access to the administrative interface due to an authentication bypass vulnerability.

Understanding CVE-2019-15806

CommScope ARRIS TR4400 devices with specific firmware versions are susceptible to an authentication bypass issue that allows unauthorized access to the administrative interface.

What is CVE-2019-15806?

CVE-2019-15806 is a vulnerability that affects CommScope ARRIS TR4400 devices with firmware up to version A1.00.004-180301. The flaw enables any user connected to the Wi-Fi network to exploit an authentication bypass, gaining access to the administrative interface.

The Impact of CVE-2019-15806

The vulnerability poses a significant security risk as it allows unauthorized users to access the administrative interface of the affected devices, potentially leading to unauthorized configuration changes or data breaches.

Technical Details of CVE-2019-15806

CommScope ARRIS TR4400 devices are affected by the following technical details:

Vulnerability Description

The vulnerability stems from the inclusion of the current base64 encoded password in the URL http://192.168.1.1/basic_sett.html, facilitating an authentication bypass.

Affected Systems and Versions

Product: CommScope ARRIS TR4400
Firmware Version: Up to A1.00.004-180301

Exploitation Mechanism

Any user connected to the Wi-Fi network can exploit the vulnerability by leveraging the base64 encoded password in the URL to gain unauthorized access to the administrative interface.

Mitigation and Prevention

To address CVE-2019-15806, consider the following mitigation strategies:

Immediate Steps to Take

Change the default password of the affected devices to a strong, unique password.
Regularly monitor network activity for any unauthorized access attempts.

Long-Term Security Practices

Implement network segmentation to restrict access to critical devices.
Conduct regular security audits and firmware updates to patch known vulnerabilities.

Patching and Updates

Apply firmware updates provided by CommScope to address the authentication bypass vulnerability and enhance device security.