{"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\/et\/blog\/news\/positive-technologies-soobshhila-o-nahodke-novoj-potentsialnoj-zakladki-v-chipah-intel","title":{"rendered":"Positive Technologies teatas, et leidis uue potentsiaalse \"tagasiheite\" Intel'i kiipides","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

T\u00f5en\u00e4oliselt ei vaidle keegi vastu, et protsessorid on \u00fcsna keerulised lahendused, mis lihtsalt ei saa t\u00f6\u00f6tada ilma enesediagnoosimise ja keeruliste kontrollimisvahenditeta nii tootmisprotsessis kui ka kasutamise ajal. Arendajatel peab olema \u00f5igus \"\u00fclemv\u00f5im\", et nad saaksid olla t\u00e4iesti kindlad toote sobivuses. Ja need t\u00f6\u00f6riistad ei kao kuhugi. Edasi kuuluvad k\u00f5ik need diagnostikavahendid protsessori koosseisu headesse eesm\u00e4rkidesse, nagu Intel AMT-i kaugjuhtimise tehnoloogiad, aga v\u00f5ivad potentsiaalselt muutuda ka tagauksedeks julgeolekuasutustele v\u00f5i kurjategijatele, mis on kasutaja jaoks sageli sama asi.<\/p>\n

\"Positive<\/p>\n

Kuidas te m\u00e4letate, tuvastasid Positive Technologies spetsialistid 2016. aasta mail, et Intel Management Engine 11 moodul AMT-tehnoloogia rakendamiseks s\u00fcsteemi hubis (PCH) on oluliselt muutunud ja muutunud kurjategijatele haavatavaks. Enne IME 11 versiooni oli moodul ainulaadse arhitektuuriga ja ilma spetsiaalse dokumentatsioonita ei kujutanud see endast erilist ohtu, kuid see v\u00f5ib avada ligip\u00e4\u00e4su teabele arvuti m\u00e4lus. Alates IME 11 versioonist on moodul x86-\u00fchilduv ja kergesti uuritav laiemale publikule (rohkem teavet haavatavuse INTEL-SA-00086 kohta siin ja edasi linkides). Veelgi enam, aasta p\u00e4rast selgus seos IME ja USA NSA j\u00e4lgimisprogrammi vahel. Edasiuurimine IME-sse viis soovimatute \"tagaukse\" avastamiseni Intel'i kontrollerites ja protsessorites, millest r\u00e4\u00e4kisid eile Black Hat konverentsil Singapuris Positive Technologies eksperdid Maksim Gorja\u010dij ja Mark Ermolov.<\/p>\n

PCH hubis ja Intel'i protsessorites leiti mitmeotstarbeline signaalide loogiline anal\u00fcsaator VISA (Intel Visualization of Internal Signals Architecture). T\u00e4psemalt, VISA on samuti Intel'i t\u00f6\u00f6riist protsessorite korrektuse kontrollimiseks. Bloki dokumentatsioon ei ole avalikult saadaval, kuid see ei t\u00e4henda, et seda ei eksisteeriks. VISA uurimine n\u00e4itas, et algselt tehasest deaktiveeritud anal\u00fcsaator v\u00f5ib r\u00fcndaja poolt aktiveerida, mis v\u00f5imaldab juurdep\u00e4\u00e4su nii PC m\u00e4lu teabele kui ka perifeersete seadmete signaalijadadele. T\u00e4iendavaid meetodeid VISA aktiveerimiseks on leitud mitu.<\/p>\n

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

\"Positive<\/p>\n

VISA aktiveerida ja n\u00e4iteks veebikaamerate juurde p\u00e4\u00e4seda \u00f5nnestus tavalise emaplaadi abil. Selleks ei olnud vajalik erilist varustust. Selle ja teise n\u00e4ite demonstreerisid Positive Technologies spetsialistid Black Hatis esitluse k\u00e4igus. Otse NSA-ga ei seostata VISA olemasolu (hetkel) keegi, v\u00e4lja arvatud muidugi konspiratsiooniteoreetikud. Kui olemasolev on dokumenteerimata v\u00f5imalus sisse l\u00fclitada signaalianal\u00fcsaator igas Intel'i platvormil p\u00f5hinevas s\u00fcsteemis, siis kuskil see kindlasti aktiveeritakse.<\/p>\n

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

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