Nuit du Hack Quals CTF 2015

##Quick solution

Link file pcap -> here

• First way:

	from scapy.all import *
	flag = ""
	packets = sniff(offline="chall.pcapng",filter="src 192.168.50.10")
	for packet in packets:
	if ICMP in packet:
	flag += (chr(packet[IP].id))
	print (flag)

view raw private.py hosted with ❤ by GitHub

• Second way:

tshark -r chall.pcapng -x 'icmp && ip.src==192.168.50.10' | awk '{print $5}' | sed 's/89//g' | sed 's/00//g' | tr '\n' ' '| xxd -r -p

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