CVE-2023-4542 Scanner

The D-Link DAR-8000-10 is a network device commonly used in enterprise networks for managing and routing network traffic efficiently. It's developed by D-Link Corporation, a well-known company specializing in networking equipment. The DAR-8000-10 is typically implemented in environments that require robust network management and supports a wide range of network protocols to enhance connectivity. This product is crucial in setting up secure and efficient corporate networks, providing reliable and scalable networking solutions. Network administrators leverage D-Link DAR product lines like this one to facilitate various networking tasks, including data transmission and inter-networking. Its versatility and reliability make it suitable for both small businesses and larger corporations that need advanced networking capabilities.

The vulnerability CVE-2023-4542 is a command injection flaw in the D-Link DAR-8000-10 firmware. Command injection occurs when the software interprets portions of user input as commands to execute. In this case, the threat arises from unsanitized input being provided through a web interface, specifically within the CGI scripts. The lack of proper input validation allows an attacker to inject arbitrary operating system commands, which are then executed with the privileges of the web server process. This type of vulnerability is particularly dangerous because it can lead to full system compromise if exploited.

Technically, the vulnerability exists in the /cgi-bin/webproc endpoint, where the 'getpage' parameter is processed without adequate sanitization. An attacker can craft a malicious HTTP request containing shell metacharacters within this parameter, such as semicolons or pipes, to append arbitrary commands. For example, sending a request like '/cgi-bin/webproc?getpage=index&error=1&cmd=id' could execute the 'id' command on the device. The vulnerability is accessible without authentication, making it exploitable by any remote attacker who can reach the device's management interface.

If exploited, an attacker can gain complete control over the D-Link DAR-8000-10 device. This includes the ability to execute arbitrary commands, modify configurations, exfiltrate sensitive data, or use the device as a pivot point for further attacks within the network. Given the CVSS score of 9.8, the impact is critical, potentially leading to a full compromise of network integrity and confidentiality. Organizations using this device should prioritize remediation to prevent unauthorized access and maintain network security.