eviltik’s gists

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]);
	});

eviltik / gist:5798856

Created June 17, 2013 18:04

syn packet raw socket

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: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 / 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:5991183

Created July 13, 2013 16:04

Ideas for nodejs raw socket helpers



	var socket = raw.createSocket({
	protocol: raw.Protocol.TCP
	});

	/*
	* calling new raw.packet will compute automagicaly ip header, pseudo header and tcp header,
	* based on tcp headers and ip headers options passed in args
	*

eviltik / syn_ok.js

Last active December 19, 2015 17:29

raw socket non working syn packet (bad checksum)

	/*

	tcpdump -v -n -i lo -x

	NMAP result (nmap -sS 127.0.0.1 -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
	21:50:20.794292 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto TCP (6), length 44)

eviltik / gist:a64843f904e7f97b2961

Created December 25, 2014 14:11

mojolicious: Can't use string ("json") as a HASH ref while "strict refs" in use

	Versions:

	CORE
	Perl (v5.14.2, linux)
	Mojolicious (5.70, Tiger Face)

	OPTIONAL
	EV 4.0+ (not installed)
	IO::Socket::Socks 0.64+ (not installed)
	IO::Socket::SSL 1.84+ (1.999)

eviltik / gist:30f92cf68aa8f25ea14d

Last active August 29, 2015 14:12

mojolicious: access to a json attribute from a json post request

	package myProject::Webservice;

	use Mojo::Base 'Mojolicious::Controller';
	use constant true => 1;
	use constant false => 0;

	sub userLogin {
	my $self = shift;
	my $data = $self->req->json;

eviltik / gist:16439b7c34296afcd3b7

Created December 27, 2014 08:24

mojolicious: directory and routes

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