Netis WF2880 Buffer Overflow Vulnerability in cgitest.cgi Allowing Denial-of-Service

A buffer overflow vulnerability has been identified in the Netis WF2880 router, specifically in the v2.1.40207 firmware. The issue arises in the FUN_0047151c function of the cgitest.cgi file. Attackers can exploit this vulnerability by manipulating the wds_set parameter in the payload, leading to a program crash and potentially causing a Denial-of-Service (DoS) condition.

Impact

Exploitation of this vulnerability causes a program crash, leading to a Denial-of-Service condition.

Reproduction

The vulnerability can be reproduced by sending a payload with a crafted wds_set value, which triggers the buffer overflow in the FUN_0047151c function of the cgitest.cgi file.