{"id":30564,"date":"2019-10-31T21:36:12","date_gmt":"2019-10-31T18:36:12","guid":{"rendered":"https:\/\/prohoster.info\/blog\/positive-technologies-soobshhila-o-nahodke-novoj-potentsialnoj-zakladki-v-chipah-intel\/"},"modified":"2019-10-31T21:36:12","modified_gmt":"2019-10-31T18:36:12","slug":"positive-technologies-soobshhila-o-nahodke-novoj-potentsialnoj-zakladki-v-chipah-intel","status":"publish","type":"post","link":"https:\/\/prohoster.info\/fr\/blog\/news\/positive-technologies-soobshhila-o-nahodke-novoj-potentsialnoj-zakladki-v-chipah-intel","title":{"rendered":"Positive Technologies a annonc\u00e9 la d\u00e9couverte d'une nouvelle potentielle \u00ab backdoor \u00bb dans les puces Intel","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Il est peu probable que quelqu'un conteste que les processeurs sont des solutions assez complexes qui ne peuvent tout simplement pas fonctionner sans auto-diagnostics et des moyens de contr\u00f4le sophistiqu\u00e9s \u00e0 la fois lors de la fabrication et pendant l'exploitation. Les d\u00e9veloppeurs doivent absolument disposer de moyens de \u00ab tout-puissance \u00bb pour \u00eatre pleinement s\u00fbrs de la conformit\u00e9 du produit. Et ces outils ne disparaissent nulle part. Par la suite, tous ces moyens de diagnostic int\u00e9gr\u00e9s au processeur peuvent servir \u00e0 de bonnes fins, comme les technologies de contr\u00f4le \u00e0 distance telles qu'Intel AMT, mais peuvent \u00e9galement devenir un backdoor pour les services sp\u00e9ciaux ou les malfaiteurs, ce qui, pour l'utilisateur, est souvent la m\u00eame chose.<\/p>\n<p><img decoding=\"async\" alt=\"Positive Technologies a annonc\u00e9 la d\u00e9couverte d&#039;une nouvelle potentielle \u00ab backdoor \u00bb dans les puces Intel\" src=\"\/wp-content\/uploads\/2019\/03\/d89975d3b8ec2c77d9898ded6c99be61.jpg\" style=\"display:block;margin: 0 auto;\" \/><\/p>\n<p>Comme vous vous en souvenez peut-\u00eatre, en mai 2016, des sp\u00e9cialistes de l'entreprise Positive Technologies ont d\u00e9couvert que le module Intel Management Engine 11 pour mettre en \u0153uvre la technologie AMT dans le chipset (PCH) avait subi des modifications importantes et \u00e9tait devenu vuln\u00e9rable aux attaques des malfaiteurs. Avant la version IME 11, le module \u00e9tait bas\u00e9 sur une architecture unique et sans documentation sp\u00e9ciale, il ne repr\u00e9sentait pas un grand danger, mais il peut ouvrir l'acc\u00e8s aux informations en m\u00e9moire du PC. \u00c0 partir de la version IME 11, le module est devenu compatible x86 et accessible \u00e0 un large public (en savoir plus sur la vuln\u00e9rabilit\u00e9 INTEL-SA-00086 ici et plus loin via les liens). De plus, un an plus tard, un lien a \u00e9t\u00e9 \u00e9tabli entre IME et le programme de surveillance de la NSA. Une \u00e9tude plus approfondie de l'IME a conduit \u00e0 la d\u00e9couverte d'un autre potentiel \u00ab implant \u00bb dans les contr\u00f4leurs et processeurs Intel, dont ont parl\u00e9 hier \u00e0 la conf\u00e9rence Black Hat \u00e0 Singapour les sp\u00e9cialistes de Positive Technologies, Maxim Goryachy et Mark Ermolov.<\/p>\n<p>Dans le hub PCH et dans les processeurs Intel, un analyseur logique multifonctionnel des signaux VISA (Intel Visualization of Internal Signals Architecture) a \u00e9t\u00e9 d\u00e9couvert. Plus pr\u00e9cis\u00e9ment, VISA est \u00e9galement un outil Intel pour v\u00e9rifier l'int\u00e9grit\u00e9 des processeurs. La documentation sur ce bloc n'est pas accessible au public, mais cela ne signifie pas qu'elle n'existe pas. L'\u00e9tude de VISA a r\u00e9v\u00e9l\u00e9 qu'un analyseur initialement d\u00e9sactiv\u00e9 \u00e0 l'usine Intel peut \u00eatre activ\u00e9 par un malfaiteur, permettant d'acc\u00e9der \u00e0 des informations dans la m\u00e9moire du PC ainsi qu'aux s\u00e9quences de signaux des p\u00e9riph\u00e9riques. Il y a d'ailleurs plusieurs m\u00e9thodes pour activer le VISA.<\/p>\n<p><center><\/center><\/p>\n<p><img decoding=\"async\" alt=\"Positive Technologies a annonc\u00e9 la d\u00e9couverte d&#039;une nouvelle potentielle \u00ab backdoor \u00bb dans les puces Intel\" src=\"\/wp-content\/uploads\/2019\/03\/936d46e3250846920e672fa5a50d1b5b.jpg\" style=\"display:block;margin: 0 auto;\" \/><\/p>\n<p>Activer le VISA et acc\u00e9der, par exemple, aux webcams a \u00e9t\u00e9 possible sur une carte m\u00e8re ordinaire. Aucun \u00e9quipement sp\u00e9cial n'\u00e9tait n\u00e9cessaire. Cette d\u00e9monstration ainsi qu'un autre exemple ont \u00e9t\u00e9 pr\u00e9sent\u00e9s par des experts de Positive Technologies lors d'une conf\u00e9rence \u00e0 Black Hat. Personne ne lie directement le VISA \u00e0 la NSA (pour l'instant), sauf bien s\u00fbr les conspirationnistes. Cependant, s'il existe la possibilit\u00e9 non document\u00e9e d'activer un analyseur de signal sur n'importe quel syst\u00e8me bas\u00e9 sur Intel, alors quelque part, il sera certainement activ\u00e9.<\/p>\n<p><center><\/p>\n<p><\/center><\/p>\n<p>\t\t\t\t<center><br \/>\n\t\t\t\t\t\t\t\t<\/center><br \/>\n<br \/>Source : <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/3dnews.ru\/984950\">3dnews.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0412\u0440\u044f\u0434 \u043b\u0438 \u043a\u0442\u043e-\u0442\u043e \u0431\u0443\u0434\u0435\u0442 \u0441\u043f\u043e\u0440\u0438\u0442\u044c \u0441 \u0442\u0435\u043c, \u0447\u0442\u043e \u043f\u0440\u043e\u0446\u0435\u0441\u0441\u043e\u0440\u044b \u2015 \u044d\u0442\u043e \u0434\u043e\u0432\u043e\u043b\u044c\u043d\u043e \u0441\u043b\u043e\u0436\u043d\u044b\u0435 \u0440\u0435\u0448\u0435\u043d\u0438\u044f, \u043a\u043e\u0442\u043e\u0440\u044b\u0435 \u043f\u0440\u043e\u0441\u0442\u043e \u043d\u0435 \u043c\u043e\u0433\u0443\u0442 \u0440\u0430\u0431\u043e\u0442\u0430\u0442\u044c \u0431\u0435\u0437 \u0441\u0430\u043c\u043e\u0434\u0438\u0430\u0433\u043d\u043e\u0441\u0442\u0438\u043a\u0438 \u0438 \u0441\u043b\u043e\u0436\u043d\u044b\u0445 \u0441\u0440\u0435\u0434\u0441\u0442\u0432 \u043a\u043e\u043d\u0442\u0440\u043e\u043b\u044f \u043a\u0430\u043a \u043d\u0430 \u044d\u0442\u0430\u043f\u0435 \u0438\u0437\u0433\u043e\u0442\u043e\u0432\u043b\u0435\u043d\u0438\u044f, \u0442\u0430\u043a \u0438 \u0432 \u043f\u0440\u043e\u0446\u0435\u0441\u0441\u0435 \u044d\u043a\u0441\u043f\u043b\u0443\u0430\u0442\u0430\u0446\u0438\u0438. \u0420\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a\u0438 \u043f\u0440\u043e\u0441\u0442\u043e \u043e\u0431\u044f\u0437\u0430\u043d\u044b \u0438\u043c\u0435\u0442\u044c \u0441\u0440\u0435\u0434\u0441\u0442\u0432\u0430 &laquo;\u0432\u0441\u0435\u0432\u043b\u0430\u0441\u0442\u0438\u044f&raquo;, \u0447\u0442\u043e\u0431\u044b \u0431\u044b\u0442\u044c \u043f\u043e\u043b\u043d\u043e\u0441\u0442\u044c\u044e \u0443\u0432\u0435\u0440\u0435\u043d\u043d\u044b\u043c\u0438 \u0432 \u0433\u043e\u0434\u043d\u043e\u0441\u0442\u0438 \u0438\u0437\u0434\u0435\u043b\u0438\u044f. \u0418 \u0432\u0435\u0434\u044c \u044d\u0442\u0438 \u0438\u043d\u0441\u0442\u0440\u0443\u043c\u0435\u043d\u0442\u044b \u043d\u0438\u043a\u0443\u0434\u0430 \u043d\u0435 \u0434\u0435\u0432\u0430\u044e\u0442\u0441\u044f. \u0412 [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":22560,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-30564","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.2 - aioseo.com -->\n\t<meta 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