Tenda FH1202 Stack-Based Buffer Overflow Vulnerability in the fromAdvSetWan Function

A critical stack-based buffer overflow vulnerability has been identified in the Tenda FH1202 router, specifically in version 1.2.0.14(408). The issue arises in the 'fromAdvSetWan' function within the '/goform/AdvSetWan' file, where the 'PPPOEPassword' parameter can be manipulated, leading to memory corruption. 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 other malicious actions by overwriting the return address on the stack.