I had one like that close to a decade ago (cheap ZyXEL, /syscmd.asp). However, I treated it as a feature; I think it was my first Linux-based router. That, an

I had one like that close to a decade ago (cheap ZyXEL, /syscmd.asp). However, I treated it as a feature; I think it was my first Linux-based router. That, and I only found it by exploring the filesystem base on the ping prompt that (IIRC) was passed to the shell without escaping semicolons... I _think_ that page was behind auth; either way, anybody who had gotten on my home router could just have stepped over and unplugged it, so it wasn't an issue in my case.