{"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\/novosti-interneta\/positive-technologies-soobshhila-o-nahodke-novoj-potentsialnoj-zakladki-v-chipah-intel","title":{"rendered":"Positive Technologies teatas Intel'i kiipides avastatud uue v\u00f5imaliku \"tagavarakoha\" leidmisest","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

T\u00f5en\u00e4oliselt ei vaidle keegi vastu, et protsessorid on \u00fcsna keerukad lahendused, mis ei saa lihtsalt t\u00f6\u00f6tada ilma enesediagnostika ja keerukate kontrollimisvahendite abil, nii tootmisprotsessis kui ka t\u00f6\u00f6tamise ajal. Arendajatel peavad olema vahendid \"k\u00f5ikv\u00f5imsuseks\", et nad saaksid olla t\u00e4iesti kindlad toote sobivuses. Ja need t\u00f6\u00f6riistad ei kao kuhugi. Edasi v\u00f5ivad k\u00f5ik need diagnostikavahendid protsessori koostisosana teenida head eesm\u00e4rki, nagu n\u00e4iteks kaugkontrollitehnoloogiad nagu Intel AMT, aga ka potentsiaalselt luurespetsialistide v\u00f5i kurjategijate jaoks tagauksena, mis on kasutaja jaoks sageli sama.<\/p>\n

\"Positive<\/p>\n

Nagu te v\u00f5ite m\u00e4letada, avastas 2016. aasta mai kuus Positive Technologies'i spetsialistid, et Intel Management Engine 11 moodul, mis rakendab AMT tehnoloogiat s\u00fcsteemiplaadi (PCH) koosseisus, on kogenud t\u00f5siseid muutusi ja on muutunud haavatavaks kurjategijate r\u00fcnnakute suhtes. Enne IME 11 versiooni oli moodul ainulaadiselt arhitektuuriliselt \u00fcles ehitatud ja mitte erilise dokumentatsioonita ei kujutanud ta eriti ohtu, kuid see v\u00f5ib avada juurdep\u00e4\u00e4su PC-m\u00e4lu teabele. IME 11 versioonist alates on moodul x86-\u00fchilduv ja kergesti ligip\u00e4\u00e4setav laiemale publikule (rohkem haavatavuse INTEL-SA-00086 kohta leiate siit ja edasi linkidelt). Veelgi enam, aasta p\u00e4rast ilmus seos IME ja USA NSA j\u00e4lgimisprogrammi vahel. Edasi uurimine IME kohta t\u00f5i esile veel \u00fche potentsiaalse \"tagaukse\" Intel'i kontrollerites ja protsessorites, millest r\u00e4\u00e4kisid eile Black Hat konverentsil Singapuris Positive Technologies'i spetsialistid Maksim Goryachiy ja Mark Yermolov.<\/p>\n

PCH-hubi ja Intel'i protsessorites avastati mitmeotstarbeline VISA-signaali loogikaanal\u00fcsaator (Intel Visualization of Internal Signals Architecture). T\u00e4psemalt, VISA on samuti Intel'i t\u00f6\u00f6riist protsessorite rikke kontrollimiseks. Valdava teabe puudumine dokumendi kohta ei t\u00e4henda, et seda ei eksisteeri. VISA uurimine on n\u00e4idanud, et algselt tehases desaktiveeritud anal\u00fcsaator v\u00f5ib h\u00e4kkeri poolt aktiveeruda, andes juurdep\u00e4\u00e4su nii PC m\u00e4lus asuvale teabele kui ka perifeeria signaalij\u00f5ududele. Selliseid viise VISA sisenemiseks on leitud mitu.<\/p>\n

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

\"Positive<\/p>\n

VISA aktiveerimine ning n\u00e4iteks juurdep\u00e4\u00e4s veebikaameratele oli v\u00f5imalik tavalise emaplaadi kaudu. Selleks polnud vajatud mingit spetsiaalset varustust. Selle ja teise n\u00e4ite demonstreerisid Positive Technologiesi spetsialistid Black Hat'i ettekande k\u00e4igus. Otseselt ei seostatakse VISA kohalolekut (hetkel) kellegagi, v\u00e4lja arvatud muidugi konspiratsiooniteoreetikud. Kuid kui on olemas dokumenteerimata v\u00f5imalus signaalianal\u00fcsaatori sisse l\u00fclitamiseks igas Intel'i platvormil, siis kindlasti keegi selle aktiveerib.<\/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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Arendajatel peab olema vajalikud vahendid, et olla t\u00e4iesti kindlad toote kvaliteedis. Ja need t\u00f6\u00f6riistad ei kao kuhugi. 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