PROBLEM WHILE USING SCAPY (Permission denied)

Question

I am trying to make a simple network scanner in python3 which can scan whole devices on LAN. That's when i heard about Scapy. However, whenever i try to run my program, it returns an error "PermissionError: [Errno 13] Permission denied"

Here's my code:

import scapy.all as scapy


def scan(ip):

  scapy.arping(ip)

scan("192.168.43.1")

It would help me a lot if you guys can fix this issue. Thanks for reading.

COMPLETE OUTPUT:

          Traceback (most recent call last):
         File "network_scanner.py", line 7, in <module>
         scan("192.168.43.1")
         File "network_scanner.py", line 5, in scan
         scapy.arping(ip)
         File "/usr/local/lib/python3.8/dist- 
         packages/scapy/layers/l2.py", line 628, in arping
         ans, unans = srp(Ether(dst="ff:ff:ff:ff:ff:ff") / 
         ARP(pdst=net), verbose=verbose,  # noqa: E501
         File "/usr/local/lib/python3.8/dist- 
         packages/scapy/sendrecv.py", line 503, in srp
         s = conf.L2socket(promisc=promisc, iface=iface,
         File "/usr/local/lib/python3.8/dist- 
        packages/scapy/arch/linux.py", line 467, in __init__
        self.ins = socket.socket(socket.AF_PACKET, 
        socket.SOCK_RAW, socket.htons(type))  # noqa: E501
       File "/usr/lib/python3.8/socket.py", line 231, in __init__
       _socket.socket.__init__(self, family, type, proto, fileno)
       PermissionError: [Errno 13] Permission denied

Can you edit your question (button at the bottom) to include the complete error message? — Ross Jacobs, May 11 '20 at 00:07

Giorgos Xou · Accepted Answer · 2021-03-14T14:39:00.593

2

I Had the same Issue but with "[Errno 1]" , what solved it for me was to just use root permissions via sudo (and "-E" to preserve the enviroment) like:

sudo -E python myScriptName.py

As mentioned Here too. | ⚠️ "It comes with it's own security risks. So be careful".

edited Mar 14 '21 at 14:39

answered Mar 14 '21 at 14:33

Giorgos Xou

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score 1 · Answer 2 · answered May 10 '20 at 23:52

1

I beleive the method scapy.arping() opens raw socket. Try running as root user with sudo.

answered May 10 '20 at 23:52

m0hithreddy

1,752
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I am using running that program using root terminal in kali linux – Faiyaz Ahmad May 11 '20 at 00:21
Are you running kali directly or in some VM ? – m0hithreddy May 11 '20 at 01:06
I have install kali linux on my android as chroot. – Faiyaz Ahmad May 11 '20 at 01:33
@FaiyazAhmad please add this to your question. Your environment is important!! – Ross Jacobs May 11 '20 at 01:59
Being root in chroot environment means nothing, If you are not running the chroot itself from a root environment. Though chroot environment grants permission to open raw socket, your android system wont. You cant solve this problem unless you root your mobile (even i doubt afterwards !) – m0hithreddy May 11 '20 at 02:01

PROBLEM WHILE USING SCAPY (Permission denied)

2 Answers2