Tenda DAP-1520 Stack-Based Buffer Overflow Vulnerability in Authentication Handler

A critical stack-based buffer overflow vulnerability has been identified in the Tenda DAP-1520 access point, specifically in the 1.10B04_BETA02 firmware version. The issue arises in the 'mod_graph_auth_uri_handler' function within the '/storage' file of the Authentication Handler component. This vulnerability can be exploited remotely, leading to potential arbitrary code execution.

Impact

Exploitation of this vulnerability causes a stack-based buffer overflow, which can typically be leveraged to execute arbitrary code.

Reproduction

The vulnerability can be reproduced by sending a crafted HTTP request that includes a payload exceeding 4000 bytes. This can be done using a script that automates the process, such as one written in Python that uses the 'requests' library to send the request.