D-Link AC Centralized Management System Default Login Scanner

The D-Link AC Centralized Management System is typically used by network administrators to manage and control multiple D-Link access points and networking devices within a centralized interface. This software facilitates efficient network management for enterprises, providing functionalities for monitoring, updates, and configurations across devices. The system is widely adopted in corporate environments, educational institutions, and large-scale facilities requiring robust network management solutions. Its user-friendly interface and integrated tools are designed to streamline network operations, enhance security, and improve overall connectivity. D-Link AC Centralized Management aids in maintaining consistent network policies and settings, and it supports troubleshooting and system diagnostics as needed. Offering centralized control, the system helps organizations manage extensive network settings and user data efficiently.

The default login vulnerability in the D-Link AC Centralized Management System involves the use of preset default credentials that are often not changed by users. This vulnerability allows unauthorized access to the system if the default username and password have not been modified post-installation. As default credentials are often widely known and documented, any failure to update them can lead to remote access by malicious actors. Such vulnerabilities are widespread in many types of software, often due to oversight or lack of user awareness. Failure to secure accounts with unique usernames and strong passwords significantly increases the risk of unauthorized access. This vulnerability underscores the importance of implementing basic security measures immediately after system setup.

The technical details of this vulnerability focus on the login functionality of the D-Link AC Centralized Management System, specifically the endpoint handling authentication (POST /login.cgi). The system is vulnerable when the default username (admin) and password (admin) are not changed, allowing attackers easy access. The vulnerability is confirmed by specific HTTP response headers and bodies indicating successful login. This issue arises from a lack of mechanisms enforcing password changes upon initial setup. Attackers exploiting this vulnerability typically use automated tools to attempt accessing the system with default credentials. The primary technical oversight involves insufficient encouragement or enforcement for users to change the default credentials upon installation.

If this vulnerability is exploited, malicious individuals could gain access to and control over the network's configuration and its associated services. Such access can lead to unauthorized monitoring, alteration of network settings, interception of sensitive data, or deployment of rogue software within the network. It poses significant risks to the integrity, confidentiality, and availability of network resources. Beyond immediate security breaches, exploitation can result in compliance violations, data breaches, and financial losses for affected organizations. The use of default credentials fundamentally undermines the security posture of an organization, making it crucial to address the issue promptly.