[Jamal Releford]

When running the packet sniffer, I continue to getting multiple errors stating the following:

Traceback (most recent call last):
File “/usr/lib/python3/dist-packages/scapy/packet.py”, line 372, in __getattr__
fld, v = self.getfield_and_val(attr)
TypeError: cannot unpack non-iterable NoneType object

The other error said the following:
During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File “/root/PycharmProjects/packet_sniffer/packet_sniffer.py”, line 28, in <module>
sniff(“eth0”)
File “/root/PycharmProjects/packet_sniffer/packet_sniffer.py”, line 6, in sniff
scapy.sniff(iface = interface, store = False, prn = process_sniffed_packet)
File “/usr/lib/python3/dist-packages/scapy/sendrecv.py”, line 1036, in sniff
sniffer._run(*args, **kwargs)
File “/usr/lib/python3/dist-packages/scapy/sendrecv.py”, line 989, in _run
session.on_packet_received(p)
File “/usr/lib/python3/dist-packages/scapy/sessions.py”, line 82, in on_packet_received
result = self.prn(pkt)
File “/root/PycharmProjects/packet_sniffer/packet_sniffer.py”, line 20, in process_sniffed_packet
if packet.hasLayer(http.HTTPRequest):
File “/usr/lib/python3/dist-packages/scapy/packet.py”, line 374, in __getattr__
return self.payload.__getattr__(attr)
File “/usr/lib/python3/dist-packages/scapy/packet.py”, line 374, in __getattr__
return self.payload.__getattr__(attr)
File “/usr/lib/python3/dist-packages/scapy/packet.py”, line 374, in __getattr__
return self.payload.__getattr__(attr)
[Previous line repeated 1 more time]
File “/usr/lib/python3/dist-packages/scapy/packet.py”, line 372, in __getattr__
fld, v = self.getfield_and_val(attr)
File “/usr/lib/python3/dist-packages/scapy/packet.py”, line 1600, in getfield_and_val
raise AttributeError(attr)
AttributeError: hasLayer

Any help you can provide would be appreciated. I’ve attached my code as well.

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[Diego Pérez]

Hi!

You have used a capital L in haslayer and that’s a wrong syntax, check Zaid’s code and make sure yours is exactly the same, especially pay attention to the syntax.

Greetings!
Diego

[Jamal Releford]

Thanks for your continued help, Diego. It seems now I’m getting the following error around the Raw field (see message below). I’ve also attached my code as it’s been written exactly as Zaid or so I thought when I checked it again.

[+] HTTP Request >> http://www.bing.com/fd/ls/l?IG=0F644CBDB97F475084D8232545A7016D&Type=Event.ClientInst&DATA=%5B{%22T%22:%22CI.ReturnTop%22,%22FID%22:%22CI%22,%22Name%22:%22ReturnTop60%22,%22Text%22:%22Triggered%22}]
Traceback (most recent call last):
File “/root/PycharmProjects/packet_sniffer/packet_sniffer.py”, line 28, in <module>
sniff(“eth0”)
File “/root/PycharmProjects/packet_sniffer/packet_sniffer.py”, line 6, in sniff
scapy.sniff(iface = interface, store = False, prn = process_sniffed_packet)
File “/usr/lib/python3/dist-packages/scapy/sendrecv.py”, line 1036, in sniff
sniffer._run(*args, **kwargs)
File “/usr/lib/python3/dist-packages/scapy/sendrecv.py”, line 989, in _run
session.on_packet_received(p)
File “/usr/lib/python3/dist-packages/scapy/sessions.py”, line 82, in on_packet_received
result = self.prn(pkt)
File “/root/PycharmProjects/packet_sniffer/packet_sniffer.py”, line 24, in process_sniffed_packet
login_info = get_login_info(packet)
File “/root/PycharmProjects/packet_sniffer/packet_sniffer.py”, line 12, in get_login_info
if packet.haslayer(scapy, Raw):
NameError: name ‘Raw’ is not defined

After which I thought it might be because I needed to import scapy so I attempted to install the module and got the following:

root@kali:~/PycharmProjects/packet_sniffer# python
Python 2.7.18 (default, Apr 20 2020, 20:30:41)
[GCC 9.3.0] on linux2
Type “help”, “copyright”, “credits” or “license” for more information.
>>> pip install scapy_http
File “<stdin>”, line 1
pip install scapy_http
^
SyntaxError: invalid syntax
>>> apt-get install scapy
File “<stdin>”, line 1
apt-get install scapy
^
SyntaxError: invalid syntax
>>> apt-get update
File “<stdin>”, line 1
apt-get update
^
SyntaxError: invalid syntax
>>> pip install scapy.all as scapy
File “<stdin>”, line 1
pip install scapy.all as scapy

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[Diego Pérez]

Hi!
Again there’s a syntax error, you are using a comma and add a blank space. Where are you watching the lectures? I mean which device are you using.

Don’t use Bing as it uses hsts protection now a days, use a simple http sites like vulnweb.com or speedbit.com.

Greetings!
Diego

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