- /usr/sbin/route COMMAND /usr/sbin/route SYSTEMS AFFECTED AIX 4.1 PROBLEM In AIX 4.1 the permissions on /usr/sbin/route are 4555. This means that anyone with local access on the machine can modify the routing tables to do whatever they want. Version 3.2.5 have the permissions at 4554. SOLUTION Obviously fixing it simply requires the removal of execute permission for other and possibly group if you want it.