Belkin Vulnerability Vendor: Belkin Product: F5K1122 Version: 1.00.33 Type: Stack Overflow Author: Jianqiang Peng Mail: pengjianqiang@iie.ac.cn Institution: Institute of Information Engineering, Chinese Academy of Sciences (IIE, CAS) Vulnerability Description We found a stack overflow vulnerability in the Belkin router with firmware version 1.00.33, which allows remote attackers to crash the server. Stack Overflow In the binary: In the router's function, is directly passed by the attacker. If this part of the data is too long, it will cause a stack overflow, allowing control over the to execute arbitrary code. The parameter is directly copied to a local variable placed on the stack, causing buffer overflow. PoC We set as , and the router will crash, such as: Result The target router crashes and cannot provide services correctly and persistently.