{"id":12217,"date":"2018-01-12T15:34:25","date_gmt":"2018-01-12T14:34:25","guid":{"rendered":"https:\/\/blog.rue-montgallet.com\/?p=12217"},"modified":"2019-11-07T12:06:27","modified_gmt":"2019-11-07T11:06:27","slug":"spectre-et-meltdown-apple-simmunise","status":"publish","type":"post","link":"https:\/\/www.rue-montgallet.com\/actualites\/spectre-et-meltdown-apple-simmunise\/","title":{"rendered":"Spectre et Meltdown : Apple s\u2019immunise !"},"content":{"rendered":"

Deux grandes failles ont fait trembler de peur le <\/span><\/span>monde de la technologie<\/span><\/span>, derni\u00e8rement. Deux malwares qui affectent le processeur m\u00eame des ordinateurs, des smartphones et des services utilis\u00e9s dans des services clouds. Deux probl\u00e8mes qui pourraient avoir de tr\u00e8s graves cons\u00e9quences\u00a0et devenir tr\u00e8s rapidement le pire cauchemar des professionnels de l\u2019informatique : <\/span><\/span>Spectre et Meltdown.<\/span><\/span><\/p>\n

Spectre et Meltdown\u00a0: danger\u00a0!<\/span><\/span><\/strong><\/em><\/h2>\n

C\u2019est par ces noms qu\u2019on d\u00e9signe les deux failles majeurs de s\u00e9curit\u00e9s du moment, dans l\u2019informatique. Ce sont des bugs qui affectent directement le c\u0153ur des appareils, tout particuli\u00e8rement les processeurs des ordinateurs, mais aussi des smartphones et les services sur clouds. Le processeur est une puce \u00e9lectronique qui sert \u00e0 traiter des donn\u00e9es et \u00e0 ex\u00e9cuter des instructions. C\u2019est donc le cerveau m\u00eame de l\u2019appareil, dot\u00e9 d\u2019une m\u00e9moire et qui permet l\u2019exploitation en temps r\u00e9el des informations. Et cette m\u00e9moire est prot\u00e9g\u00e9e.<\/span><\/span><\/p>\n

Et c\u2019est l\u00e0 que Spectre et Meltdown interviennent. En effet, les deux bugs permettent facilement \u00e0 un logiciel malveillant<\/a> de p\u00e9n\u00e9trer dans la m\u00e9moire, en d\u00e9pit des protections. Il peut s\u2019agir d\u2019identifiants de connexion sur un site, enregistr\u00e9 dans votre navigateur, le contenu des e-mails et autres documents personnels, etc.<\/span><\/span><\/p>\n

A vrai dire, les deux malwares ont des fonctions diff\u00e9rentes. Meltdown, en quelque sorte, fait \u00ab\u00a0fondre\u00a0\u00bb les protections entre les applications et le syst\u00e8me d\u2019exploitation. Spectre, lui, est un peu plus agressif, car il casse l\u2019isolation entre diff\u00e9rentes applications. Combinez le deux et il sera tr\u00e8s simple pour un pirate informatique d\u2019acc\u00e9der \u00e0 la quasi-totalit\u00e9 de la m\u00e9moire de votre appareil.<\/span><\/span><\/p>\n

Apple\u00a0prend des mesures<\/span><\/span><\/strong><\/em><\/h2>\n

Les bugs n\u2019affectent pas toutes les puces, mais bon nombres de smartphones et d\u2019ordinateurs sont atteintes. Le g\u00e9ant Am\u00e9ricain, Apple, n\u2019a pas eu de chance et fait malheureusement parti des victimes sur les iOs et macOs. Aux grands maux, les grands rem\u00e8des\u00a0! La firme s\u2019est empress\u00e9e de trouver une solution. Apple a mis en ligne deux mises \u00e0 jour pour macOS et iOS\u00a0: les versions 10.13.2 et 11.2.2. Des patchs qui ont pour but de renforcer la s\u00e9curit\u00e9 et de contourner les failles.<\/span><\/span><\/p>\n

Pour le cas d\u2019iOS, la mise \u00e0 jour est facilement accessible, car elle p\u00e8se moins de 80Mo. Elle concerne les iPhone 5S<\/a> et suivants, de l\u2019iPad Air Origine<\/a>l \u00e0 l\u2019iPod Touch 6<\/a><\/span><\/span>\u00e8me<\/span><\/span><\/sup> g\u00e9n\u00e9ration. Si le t\u00e9l\u00e9chargement n\u2019est pas automatique sur le syst\u00e8me d\u2019exploitation, il vous suffit de vous rendre dans \u00ab\u00a0Param\u00e8tre > \u00a0G\u00e9n\u00e9ral > mise \u00e0 jour logicielle\u00a0\u00bb.<\/span><\/span><\/p>\n

Il y a cependant deux importantes informations \u00e0 savoir sur cette mise \u00e0 jour\u00a0: premi\u00e8rement, elle ne concerne pas que Meltdown et Spectre, car elle ouvre \u00e9galement l\u2019acc\u00e8s \u00e0 Apple Pay Cash tout en am\u00e9liorant le chargement rapide sans fil et supprime de nombreux bugs. Et deuxi\u00e8mement, elle ne comble pas tout \u00e0 fait les failles de s\u00e9curit\u00e9, mais change certains processus de calcul sur les applications vuln\u00e9rable.<\/span><\/span><\/p>\n","protected":false},"excerpt":{"rendered":"

Deux grandes failles ont fait trembler de peur le monde de la technologie, derni\u00e8rement. Deux […]<\/p>\n","protected":false},"author":9,"featured_media":12218,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"yasr_overall_rating":0,"yasr_post_is_review":"","yasr_auto_insert_disabled":"","yasr_review_type":"Product","footnotes":""},"categories":[39],"tags":[43],"class_list":["post-12217","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-actu","tag-apple"],"yasr_visitor_votes":{"stars_attributes":{"read_only":false,"span_bottom":false},"number_of_votes":0,"sum_votes":0},"yoast_head":"\nSpectre et Meltdown : Apple s\u2019immunise ! - Rue-Montgallet.com<\/title>\n<meta name=\"description\" content=\"Apple a pris la d\u00e9cision de prendre toutes les pr\u00e9cautions n\u00e9cessaires contre les deux virus les plus destructeurs du monde du high tech dont Spectre et Meltdown\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.rue-montgallet.com\/actualites\/spectre-et-meltdown-apple-simmunise\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Spectre et Meltdown : Apple s\u2019immunise ! 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