Archiv des Autors: cammy

Wifi Tagger – Nerdige Dunstmarken für urbane Umgebungen.

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WifiTagger ist ein Wifi-Access-Point-Hack, den Addi Wagenknecht für das F.A.T. Lab gebaut hat.

Basierend auf OpenWRT, erlaubt es die überarbeitete Firmware einen TP-Link WR741ND Router zu einer virtuellen Graffitti Wall umzubauen. Die Gerät nutzt sodann sein verfügbares WLAN-Spektrum um mindestens vier freie Textzeilen á 32 Zeichen in die clientseitige SSID-Übersicht öffentlicher WLAN Netzwerke zu pumpen.

Neugierige Passanten führt die Auswahl eines der Netzwerke – bzw. einer der Tagzeilen – zu einem simplen WEB-GUI. Wo an dieser Stelle für gewöhnlich bspw. Zugangsdaten abgefragt werden, kann der Interessierte ein Text eingeben, welcher sofort als SSID promoted wird.

Nerdalert findet: Ach, das ist ja was cool.

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Studenten hacken Drone der Homeland Security

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Wie die Kollegen vom RT Network mit Bezug auf ein Interview bei Fox berichten, hat es eine Gruppe von Studenten mit etwas handwerklichem Geschick und 1.000 USD Budget geschafft, das Navigations-System einer unbemannten Drone der Homeland Security zu manipulieren.

Betreuer Professor Todd Humphreys, vom „Austin Radionavigation Laboratory“ der Universität Texas, erklärt das Verfahren kurz und knackig mit „GPS Spoofing“ und ist sehr stolz auf seine Schäfchen.

Jedoch, dass der Hack zwar kompliziert aber machbar war bereitet Humphreys große Sorge. Offenbar gibt es seitens der US Regierung Pläne, den Bundesstaaten zu erlauben, in ihrem Luftraum nach Belieben Dronen einsetzen zu dürfen. Es ist absehbar, dass diese Maschinen dann nicht nur im Dienste der „inneren Sicherheit“, sondern auch für die Logistik eingesetzt werden.

„In fünf oder zehn Jahren haben wir 30.000 Dronen im Luftraum,“ was vor dem Hintergrund des Hacks 30.000 potentielle Raketen gegen die USA seien.

– Cammy Rodgers für Nerdalert Networks

JS Quicky: Anchor-Tags zum Zerhacken von URIs

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Parsing ist nicht schön. Linguisten mögen da feuchte Hände bekommen. Als Javascript Entwickler kriege ich da nur dieses unangenehme Kribbeln. Denn ich weiss, i.d.R. halte ich direkt auf die Regex-Hölle zu. Das ist immer dann um so nerviger, wenn es um ganz alltägliche Dinge geht. Um das Zerhacken einer URI beispielsweise.

Wie das aussehen kann, zeigt der werte Kollege Steven Levithan ganz eindrucksvoll. Der geneigte Leser merkt schnell, dass er so gar keine Probleme mit Regexen hat. Auszug gefällig?

parseUri.options = {
	strictMode: false,
	key: ["source","protocol","authority","userInfo","user","password","host","port","relative","path","directory","file","query","anchor"],
	q:   {
		name:   "queryKey",
		parser: /(?:^|&)([^&=]*)=?([^&]*)/g
	},
	parser: {
		strict: /^(?:([^:\/?#]+):)?(?:\/\/((?:(([^:@]*)(?::([^:@]*))?)?@)?([^:\/?#]*)(?::(\d*))?))?((((?:[^?#\/]*\/)*)([^?#]*))(?:\?([^#]*))?(?:#(.*))?)/,
		loose:  /^(?:(?![^:@]+:[^:@\/]*@)([^:\/?#.]+):)?(?:\/\/)?((?:(([^:@]*)(?::([^:@]*))?)?@)?([^:\/?#]*)(?::(\d*))?)(((\/(?:[^?#](?![^?#\/]*\.[^?#\/.]+(?:[?#]|$)))*\/?)?([^?#\/]*))(?:\?([^#]*))?(?:#(.*))?)/
	}
};

Da kommt Freude auf. Abgesehen davon ist die Funktion verdammt gut, weil sie cross-browser-tauglich ist, Credentials erkennt und auch ausserhalb von DOM-Umgebungen wie Node.js prima funktioniert. Viel hilft viel.

Wenn´s aber auch etwas weniger sein darf, hier ein Quicky für das Web-Frontend (via):

var parser = document.createElement('a');
parser.href = "http://example.com:3000/pathname/?query=test#hash";

parser.protocol; // => "http:"
parser.hostname; // => "example.com"
parser.port; // => "3000"
parser.pathname; // => "/pathname/"
parser.search; // => "?query=test"
parser.hash; // => "#hash"
parser.host; // => "example.com:3000"

Ist Javascript nicht wunderschön? *schluchz*

cana64

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Im x-tausendsten „Humble Bundle“ ist dieses Quartal diesen Monat auch der iOS Klassiker Canabalt eingeschnürt. Kauft es nicht. Kauft es nicht nur wegen Canabalt.

Die Damen von Nemesiz haben eine inoffizielle C64–Version gebaut, die nicht nur fast genau so aussieht sondern auch noch besser nerdiger besser kling. Die gibt es kostenlos hier oder als Cartridge dort.

Cammy, Nerdalert-International, 2012