Tenda WH450 Stack-Based Buffer Overflow Vulnerability in DHCP Client List Handler

A stack-based buffer overflow vulnerability has been identified in the Tenda WH450 router, specifically in the firmware version 1.0.0.18. The issue arises within the HTTP request handler for the '/goform/DhcpListClient' endpoint. This vulnerability can be exploited remotely by unauthenticated attackers, potentially leading to arbitrary code execution or causing denial-of-service conditions. The buffer overflow is triggered by manipulating the 'page' parameter with excessively long input.

Impact

Exploitation of this vulnerability allows for a stack-based buffer overflow, which could be leveraged to execute arbitrary code or cause a denial-of-service condition on the device.

Reproduction

The vulnerability can be reproduced by sending a GET request to the '/goform/DhcpListClient' endpoint with the 'page' parameter containing a payload of excessive length. This can be done using a web application testing tool or by writing a script that automates the process. The Tenda WH450 router must be accessible over the network, and no authentication is required to exploit this vulnerability.