Permission denied error

[serena zanetta]

Hi,

I’ve got a problem with the packet injection. I’ve tried to send a packet by
the means of the nemesis suite. Everything works fine since I type the
command

“nemesis udp …”

on the command line.



If I tried to call the same command via the PHP exec()

exec("nemesis udp $message_to_send",$response);

the nemesis packet injection failed: “/dev/bpf0: Permission denied” !



sprintf(device, "/dev/bpf%d", i);

fd = open(device, O_RDWR);



Gives  fd = -1.



Can anybody help me?

Serena