{"id":11996,"date":"2021-02-10T09:37:27","date_gmt":"2021-02-10T08:37:27","guid":{"rendered":"https:\/\/www.sosav.fr\/blog\/?p=11996"},"modified":"2021-02-05T11:53:06","modified_gmt":"2021-02-05T10:53:06","slug":"bluetooth-porte-dentree-pour-hackers","status":"publish","type":"post","link":"https:\/\/sosav.fr\/blog\/actu\/bluetooth-porte-dentree-pour-hackers.html","title":{"rendered":"Bluetooth, porte d’entr\u00e9e pour hackers ?"},"content":{"rendered":"

Enceinte, \u00e9couteurs, casques, t\u00e9l\u00e9vision ou encore voiture… Le Bluetooth est partout et offre une libert\u00e9 incomparable compar\u00e9 aux c\u00e2bles qui s’entrem\u00ealent ! Son utilisation est aujourd’hui quotidienne et pourtant il poss\u00e8de une faille de s\u00e9curit\u00e9 importante. SOSav vous en parle.<\/p>\n

Bluetooth et chiffrement de donn\u00e9es<\/span><\/h2>\n

D\u00e9couverte par les chercheurs de l’universit\u00e9 de Purdue dans l’Indiana, elle\u00a0 met en lumi\u00e8re un probl\u00e8me qui se trouve au sein m\u00eame du fonctionnement du Bluetooth.<\/p>\n

Pour vous la faire simple, lorsque vous vous connectez en Bluetooth \u00e0 un appareil celui-ci enregistre vos donn\u00e9es de connexion et les s\u00e9curise gr\u00e2ce \u00e0 des clefs de chiffrement.\u00a0 Ces m\u00eames clefs de chiffrement sont cens\u00e9es \u00eatre rev\u00e9rifi\u00e9es lors de la reconnexion. Or ce n’est g\u00e9n\u00e9ralement pas ou tr\u00e8s peu le cas. La faille de s\u00e9curit\u00e9<\/strong>\u00a0r\u00e9side dans la reconnexion<\/strong>.\u00a0Il est donc possible de r\u00e9cup\u00e9rer les connexions d\u00e9j\u00e0 \u00e9tablies par le pass\u00e9 avec certains appareils. Le but ? Les r\u00e9utiliser de mani\u00e8re d\u00e9tourner afin de tromper ces m\u00eames appareils.<\/p>\n

Prenons un exemple concret. Vous appairez en Bluetooth votre t\u00e9l\u00e9phone avec une enceinte connect\u00e9e. Un hacker pourrait r\u00e9cup\u00e9rer vos clefs de chiffrement<\/strong> avec cette enceinte. Il lui suffit par la suite d‘<\/strong>utiliser ces m\u00eames clefs via un autre appareil que l’enceinte dans le but de tromper<\/strong> votre smartphone<\/strong>. Celui-ci croira alors qu’il se connecte \u00e0 l’enceinte sauf que… Non ! Avec ce genre de possibilit\u00e9 il pourrait donc avoir une connexion directe avec votre appareil et par la suite lancer des attaques sur celui-ci.<\/p>\n

Alors, \u00e7a va la parano\u00efa pour l’instant ?\u00a0<\/em><\/p>\n

Android, Linux et les appareils IoT sous la menace<\/span><\/h2>\n

Mauvaise nouvelle pour les possesseurs d’appareils sous Android<\/strong><\/a>, d’ordinateur avec Linux et pour l’ensemble des appareils IoT\u00a0(ensemble des objets physiques connect\u00e9s \u00e0 internet)<\/em>. En effet ils sont encore \u00e0 risque vis-\u00e0-vis de cette faille<\/strong>. Tandis qu’Apple et Windows<\/strong>\u00a0ont d\u00e9ploy\u00e9 des correctifs depuis maintenant quelques mois. Connaissant les difficult\u00e9s des constructeurs utilisant Android pour sortir les correctifs de s\u00e9curit\u00e9. Il vaut mieux pour l’instant rester vigilant sur l’utilisation du Bluetooth dans les lieux publics, un peu comme avec le WiFi<\/a> dans les gares ou a\u00e9roports.<\/p>\n

\n

Mais si votre mobile a besoin d’un coup de jeune ou d’aide pour la connexion Bluetooth, pensez \u00e0 nos pi\u00e8ces d\u00e9tach\u00e9es t\u00e9l\u00e9phones<\/a> \ud83d\ude09<\/p>\n","protected":false},"excerpt":{"rendered":"

Enceinte, \u00e9couteurs, casques, t\u00e9l\u00e9vision ou encore voiture… Le Bluetooth est partout et offre une libert\u00e9 incomparable compar\u00e9 aux c\u00e2bles qui s’entrem\u00ealent ! Son utilisation est […]<\/p>\n","protected":false},"author":31,"featured_media":12038,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[345],"tags":[10238,10241,10235,10232,10244,10229,10211,10208,10214,10217,10226],"class_list":["post-11996","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-actu","tag-activation-bluetooth","tag-activer-bluetooth","tag-bluetooth-android","tag-bluetooth-iphone","tag-bluetooth-telephone","tag-faille-securite","tag-faille-securite-android","tag-faille-securite-bluetooth","tag-faille-securite-linux","tag-hacker-bluetooth","tag-securite-bluetooth"],"yoast_head":"\nBluetooth, porte d'entr\u00e9e pour hackers ? - Blog SOSav<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/sosav.fr\/blog\/actu\/bluetooth-porte-dentree-pour-hackers.html\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Bluetooth, porte d'entr\u00e9e pour hackers ? - Blog SOSav\" \/>\n<meta property=\"og:description\" content=\"Enceinte, \u00e9couteurs, casques, t\u00e9l\u00e9vision ou encore voiture… Le Bluetooth est partout et offre une libert\u00e9 incomparable compar\u00e9 aux c\u00e2bles qui s’entrem\u00ealent ! 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