Tenda F456 Buffer Overflow Vulnerability in SafeMacFilter Function

A stack-based buffer overflow vulnerability has been identified in the Tenda F456 router, specifically in version 1.0.0.5. The issue arises in the 'fromSafeMacFilter' function within the '/goform/SafeMacFilter' file. The vulnerability is triggered by manipulating the 'page' argument, which leads to a buffer overflow condition. This vulnerability can be exploited remotely, and a public exploit is available.

Impact

Exploitation of this vulnerability causes a stack-based buffer overflow, which can lead to arbitrary code execution or a denial-of-service condition.

Reproduction

The vulnerability can be reproduced by sending a POST request to '/goform/SafeMacFilter' with an excessively long 'page' parameter. If the 'menufacturer' parameter is left empty, the lack of length validation allows the overflow to occur.