eviltik eviltik

nodejs&js addict / waap tools / ui / webxr

eviltik / gist:5817266

Created June 19, 2013 19:29

TCP only, generateChecksum failed too, every offsets tested, alternative routines for checksum calculation failed too


	/*

	IP Header

	0 1 2 3
	0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
	+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
	\|Version\| IHL \|Type of Service\| Total Length \|
	+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+

eviltik / gist:5817244

Created June 19, 2013 19:28

TCP + IP = generateChecksums failed, i've tried every offsets !


	/*

	tcpdump -vvv -i lo -n ip

	NMAP result (nmap -sS localhost -p 23)
	root@debian:/home/zenetik# tcpdump -vvv -i lo -n ip
	tcpdump: listening on lo, link-type EN10MB (Ethernet), capture size 65535 bytes
	21:50:20.794277 IP (tos 0x0, ttl 40, id 56063, offset 0, flags [none], proto TCP (6), length 44)
	127.0.0.1.56649 > 127.0.0.1.23: Flags [S], cksum 0x17c8 (correct), seq 1809790236, win 1024, options [mss 1460], length 0

eviltik / syn.js

Last active May 11, 2018 02:02

raw socket syn scan nodejs

	/*

	tcpdump -i lo -n ip

	nmap :19:54:07.502287 IP 127.0.0.1.56239 > 127.0.0.1.23: Flags [S], seq 411956820, win 1024, options [mss 1460], length 0
	syn.js :21:26:57.830349 IP 127.0.0.1.54444 > 127.0.0.1.23: Flags [S], seq 234156285, win 1024, options [mss 1460], length 0

	--> sound good but no ack+syn in reply, let's go verbose mode with tcpdump

eviltik / gist:5798856

Created June 17, 2013 18:04

syn packet raw socket

eviltik / test.js

Created June 10, 2013 10:14

nodejs dns bug ?

	var async = require('async');
	var dns = require('dns');

	async.series([
	function(next) {
	dns.resolve4('www.microsoft.com',next);
	},
	],function(err,result) {
	console.log(result[0][0]);
	});