Linksys E5600 Command Injection Vulnerability in Ping Test Function

A command injection vulnerability has been identified in the Linksys E5600 router, specifically in version 1.1.0.26. The issue arises within the Lua runtime file, where the 'runtime.pingTest' function is vulnerable to injection through the 'pt["count"]' parameter.

Impact

Exploitation of this vulnerability allows for command injection, where an attacker can execute arbitrary commands on the device.

Reproduction

To reproduce this vulnerability, send a request to the 'runtime.pingTest' function with a crafted 'count' parameter that includes the desired command injection payload. The router's firmware must be version 1.1.0.26.