CVE-2020-35219 : Exploit Details and Defense Strategies

The ASUS DSL-N17U modem with firmware 1.1.0.2 allows unauthorized access to the admin interface by manipulating the admin password without authentication.

Understanding CVE-2020-35219

This CVE involves a security vulnerability in the ASUS DSL-N17U modem that enables attackers to gain access to the admin interface without proper authentication.

What is CVE-2020-35219?

The vulnerability in the ASUS DSL-N17U modem allows attackers to change the admin password without authentication through a specific POST request.

The Impact of CVE-2020-35219

This vulnerability can lead to unauthorized access to the admin interface, potentially compromising the security and privacy of the device and its users.

Technical Details of CVE-2020-35219

The technical aspects of the CVE-2020-35219 vulnerability are as follows:

Vulnerability Description

Attackers can exploit the vulnerability by sending a POST request to Advanced_System_Content.asp with specific parameters to change the admin password without authentication.

Affected Systems and Versions

Product: ASUS DSL-N17U modem
Firmware Version: 1.1.0.2

Exploitation Mechanism

Attackers send a POST request to Advanced_System_Content.asp with specific parameters to change the admin password without authentication.

Mitigation and Prevention

To address CVE-2020-35219, consider the following mitigation strategies:

Immediate Steps to Take

Update the modem firmware to the latest version provided by ASUS.
Change the default admin credentials to strong, unique passwords.
Monitor network activity for any suspicious behavior.

Long-Term Security Practices

Regularly update firmware and software on networking devices.
Implement strong password policies and multi-factor authentication.
Conduct security audits and penetration testing periodically.

Patching and Updates

Stay informed about security updates from ASUS for the DSL-N17U modem.
Apply patches promptly to address known vulnerabilities.