{"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\/pl\/blog\/news\/positive-technologies-soobshhila-o-nahodke-novoj-potentsialnoj-zakladki-v-chipah-intel","title":{"rendered":"Positive Technologies poinformowa\u0142o o odkryciu nowej potencjalnej \u201ezak\u0142adki\u201d w chipach Intel","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Trudno si\u0119 nie zgodzi\u0107, \u017ce procesory to do\u015b\u0107 skomplikowane rozwi\u0105zania, kt\u00f3re po prostu nie mog\u0105 dzia\u0142a\u0107 bez autodiagnozy i zaawansowanych \u015brodk\u00f3w kontroli zar\u00f3wno na etapie produkcji, jak i w trakcie u\u017cytkowania. Tw\u00f3rcy musz\u0105 mie\u0107 narz\u0119dzia \u201ewszechw\u0142adzy\u201d, aby mie\u0107 pe\u0142n\u0105 pewno\u015b\u0107 co do jako\u015bci wyrobu. Te narz\u0119dzia zreszt\u0105 nie znikaj\u0105. W przysz\u0142o\u015bci wszystkie te narz\u0119dzia diagnostyczne w sk\u0142adzie procesora mog\u0105 s\u0142u\u017cy\u0107 dobrym celom, jak technologie zdalnego zarz\u0105dzania typu Intel AMT, mog\u0105 r\u00f3wnie\u017c sta\u0107 si\u0119 tylnymi drzwiami dla s\u0142u\u017cb specjalnych lub cyberprzest\u0119pc\u00f3w, co dla u\u017cytkownika cz\u0119sto oznacza to samo.<\/p>\n

\"Positive<\/p>\n

Jak pami\u0119tacie, w maju 2016 roku specjali\u015bci z firmy Positive Technologies odkryli, \u017ce modu\u0142 Intel Management Engine 11 u\u017cywany do implementacji technologii AMT w systemowym hubie (PCH) przeszed\u0142 powa\u017cne zmiany, staj\u0105c si\u0119 wra\u017cliwym na ataki cyberprzest\u0119pc\u00f3w. Do wersji IME 11 modu\u0142 charakteryzowa\u0142 si\u0119 unikaln\u0105 architektur\u0105 i bez specjalnej dokumentacji nie stanowi\u0142 wi\u0119kszego zagro\u017cenia, a m\u00f3g\u0142 uzyska\u0107 dost\u0119p do danych w pami\u0119ci komputera. Od wersji IME 11 modu\u0142 sta\u0142 si\u0119 zgodny z x86 i dost\u0119pny do bada\u0144 dla szerokich rzeszy (wi\u0119cej na temat podatno\u015bci INTEL-SA-00086 tutaj i dalej w linkach). Co wi\u0119cej, rok p\u00f3\u017aniej ujawniono zwi\u0105zek mi\u0119dzy IME a programem inwigilacji NSA USA. Dalsze badania IME doprowadzi\u0142y do odkrycia jeszcze jednej potencjalnej \u201ezak\u0142adki\u201d w kontrolerach i procesorach Intel, o kt\u00f3rej wczoraj na konferencji Black Hat w Singapurze opowiedzieli specjali\u015bci z Positive Technologies Maksym Gor\u0105czy i Mark Jeromo\u0142.<\/p>\n

W sk\u0142adzie mostu PCH oraz w procesorach Intel odkryto wielofunkcyjny analizator sygna\u0142\u00f3w VISA (Intel Visualization of Internal Signals Architecture). Dok\u0142adniej, VISA to r\u00f3wnie\u017c narz\u0119dzie Intel do sprawdzania poprawno\u015bci procesor\u00f3w. Dokumentacja dotycz\u0105ca tej jednostki nie jest dost\u0119pna publicznie, ale to nie oznacza, \u017ce jej nie ma. Badanie VISA ujawni\u0142o, \u017ce fabrycznie dezaktywowana przez Intel analizator mo\u017ce by\u0107 aktywowana przez przest\u0119pc\u00f3w, zapewniaj\u0105c dost\u0119p zar\u00f3wno do danych w pami\u0119ci PC, jak i do sygna\u0142\u00f3w sekwencyjnych urz\u0105dze\u0144 peryferyjnych. Istnieje wiele sposob\u00f3w na aktywacj\u0119 VISA.<\/p>\n

<\/center><\/p>\n

\"Positive<\/p>\n

W\u0142\u0105czenie VISA i uzyskanie, na przyk\u0142ad, dost\u0119pu do kamer internetowych by\u0142o mo\u017cliwe na standardowej p\u0142ycie g\u0142\u00f3wnej. Nie by\u0142o potrzeby stosowania specjalnego sprz\u0119tu. Ten i inny przyk\u0142ad eksperci Positive Technologies zaprezentowali podczas wyk\u0142adu na Black Hat. Nikt bezpo\u015brednio nie kojarzy VISA z NSA (na razie), opr\u00f3cz oczywi\u015bcie teorii spiskowych. Jednak je\u015bli istnieje niedokumentowana mo\u017cliwo\u015b\u0107 w\u0142\u0105czenia analizatora sygna\u0142u w dowolnym systemie na platformie Intel, to gdzie\u015b musi by\u0107 ona aktywowana.<\/p>\n

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\u0179r\u00f3d\u0142o: 3dnews.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

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