{"id":113601,"date":"2024-02-15T04:02:43","date_gmt":"2024-02-15T02:02:43","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/sczenarij-ataki-na-obrabotchik-ne-ustanovlennyh-prilozhenij-v-ubuntu"},"modified":"2024-02-15T04:02:43","modified_gmt":"2024-02-15T02:02:43","slug":"sczenarij-ataki-na-obrabotchik-ne-ustanovlennyh-prilozhenij-v-ubuntu","status":"publish","type":"post","link":"https:\/\/prohoster.info\/hr\/blog\/news\/sczenarij-ataki-na-obrabotchik-ne-ustanovlennyh-prilozhenij-v-ubuntu","title":{"rendered":"Scenario napada na obrtnik ne instaliranih aplikacija u Ubuntu.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Istra\u017eiva\u010di iz tvrtke Aqua Security primijetili su mogu\u0107nost napada na korisnike distribucije Ubuntu, koriste\u0107i specifikacije implementacije obrada «command-not-found», koja daje savjete u slu\u010daju poku\u0161aja pokretanja programa koji nije prisutan u sustavu. Problem le\u017ei u tome \u0161to obrada «command-not-found» prilikom procjene pokrenutih naredbi koje nedostaju u sustavu ne koristi samo pakete iz slu\u017ebenih repozitorija, ve\u0107 i snap pakete iz katalog\u0101 snapcraft.io. <\/p>\n

Prilikom formiranja preporuka na temelju sadr\u017eaja katalog\u0101 snapcraft.io obrada «command-not-found» ne uzima u obzir status paketa i obuhva\u0107a pakete koje su dodali neprovjereni korisnici. Tako napada\u010d mo\u017ee objaviti u snapcraft.io paket sa skrivenim zlonamjernim sadr\u017eajem i imenom koje se preklapa s postoje\u0107im DEB paketima, izvorno odsutnim u repozitoriju, ili la\u017enim aplikacijama \u010dija imena odra\u017eavaju tipi\u010dne pogre\u0161ke i tipfelere korisnika prilikom uno\u0161enja imena popularnih alata. <\/p>\n

Na primjer, mogu\u0107e je objaviti pakete «tracert» i «tcpdamp» uz pretpostavku da \u0107e korisnik napraviti pogre\u0161ku pri unosu imena alata «traceroute» i «tcpdump», a «command-not-found» \u0107e preporu\u010diti instalaciju zlonamjernih paketa objavljenih na snapcraft.io. Korisnik mo\u017ee ne primijetiti zamku i misliti da sustav preporu\u010duje samo provjerene pakete. Napada\u010d tako\u0111er mo\u017ee objaviti u snapcraft.io paket \u010dije ime se preklapa s postoje\u0107im deb paketima, a u tom slu\u010daju «command-not-found» \u0107e dati dvije preporuke za instalaciju deb i snap, a korisnik mo\u017ee odabrati snap, misle\u0107i da je to sigurnija opcija ili zloupotrebljavaju\u0107i noviju verziju.

\"Scenario<\/center> <\/p>\n

Aplikacije u snap formatu, za koje u snapcraft.io dopu\u0161ta automatsku recenziju, mogu se izvoditi samo u izoliranom okru\u017eenju (snap paketi bez izolacije objavljuju se samo nakon ru\u010dne recenzije). Napada\u010du mo\u017ee biti dovoljno izvr\u0161avanje u izoliranom okru\u017eenju s pristupom mre\u017ei, na primjer, za rudarenje kriptovaluta, izvo\u0111enje DDoS napada ili slanje spama. <\/p>\n

Napada\u010d tako\u0111er mo\u017ee koristiti metode za zaobila\u017eenje izolacije u zlonamjernim paketima, poput iskori\u0161tavanja neispravljenih ranjivosti u jezgru i mehanizmima izolacije, kori\u0161tenja snap su\u010delja za pristup vanjskim resursima (za skriveno snimanje zvuka i videa) ili zahvata unosa s tipkovnice prilikom kori\u0161tenja X11 protokola (za stvaranje keyloggera koji rade u sandbox okru\u017eenju).
\n
Izvor: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u0418\u0441\u0441\u043b\u0435\u0434\u043e\u0432\u0430\u0442\u0435\u043b\u0438 \u0438\u0437 \u043a\u043e\u043c\u043f\u0430\u043d\u0438\u0438 Aqua Security \u043e\u0431\u0440\u0430\u0442\u0438\u043b\u0438 \u0432\u043d\u0438\u043c\u0430\u043d\u0438\u0435 \u043d\u0430 \u0432\u043e\u0437\u043c\u043e\u0436\u043d\u043e\u0441\u0442\u044c \u0441\u043e\u0432\u0435\u0440\u0448\u0435\u043d\u0438\u044f \u0430\u0442\u0430\u043a\u0438 \u043d\u0430 \u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u0435\u043b\u0435\u0439 \u0434\u0438\u0441\u0442\u0440\u0438\u0431\u0443\u0442\u0438\u0432\u0430 Ubuntu, \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u044f \u043e\u0441\u043e\u0431\u0435\u043d\u043d\u043e\u0441\u0442\u0438 \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0438 \u043e\u0431\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a\u0430 «command-not-found», \u0432\u044b\u0434\u0430\u044e\u0449\u0435\u0433\u043e \u043f\u043e\u0434\u0441\u043a\u0430\u0437\u043a\u0443 \u0432 \u0441\u043b\u0443\u0447\u0430\u0435 \u043f\u043e\u043f\u044b\u0442\u043a\u0438 \u0437\u0430\u043f\u0443\u0441\u043a\u0430 \u043e\u0442\u0441\u0443\u0442\u0441\u0442\u0432\u0443\u044e\u0449\u0435\u0439 \u0432 \u0441\u0438\u0441\u0442\u0435\u043c\u0435 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u044b. \u041f\u0440\u043e\u0431\u043b\u0435\u043c\u0430 \u0432 \u0442\u043e\u043c, \u0447\u0442\u043e \u043f\u0440\u0438 \u043e\u0446\u0435\u043d\u043a\u0435 \u0437\u0430\u043f\u0443\u0441\u043a\u0430\u0435\u043c\u044b\u0445 \u043a\u043e\u043c\u0430\u043d\u0434, \u043a\u043e\u0442\u043e\u0440\u044b\u0435 \u043e\u0442\u0441\u0443\u0442\u0441\u0442\u0432\u0443\u044e\u0442 \u0432 \u0441\u0438\u0441\u0442\u0435\u043c\u0435, «command-not-found» \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u0435\u0442 \u043f\u0440\u0438 \u0432\u044b\u0431\u043e\u0440\u0435 \u0440\u0435\u043a\u043e\u043c\u0435\u043d\u0434\u0430\u0446\u0438\u0438 \u043d\u0435 \u0442\u043e\u043b\u044c\u043a\u043e \u043f\u0430\u043a\u0435\u0442\u044b \u0438\u0437 \u0448\u0442\u0430\u0442\u043d\u044b\u0445 \u0440\u0435\u043f\u043e\u0437\u0438\u0442\u043e\u0440\u0438\u0435\u0432, \u043d\u043e snap-\u043f\u0430\u043a\u0435\u0442\u044b […]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":113602,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-113601","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\n","aioseo_head_json":{"title":"\ud83e\udd47Scenarij napada na upravitelja neinstaliranih aplikacija u Ubuntu | ProHoster","description":"Istra\u017eiva\u010di iz tvrtke Aqua Security primijetili su mogu\u0107nost napada na korisnike Ubuntu distribucije iskori\u0161tavaju\u0107i osobitosti implementacije upravitelja \"command-not-found\" koji daje savjet.","canonical_url":"https:\/\/prohoster.info\/hr\/blog\/news\/sczenarij-ataki-na-obrabotchik-ne-ustanovlennyh-prilozhenij-v-ubuntu","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":null,"og:locale":"hr_HR","og:site_name":"ProHoster | \u041a\u0443\u043f\u0438\u0442\u044c \u043d\u0430\u0434\u0435\u0436\u043d\u044b\u0439 \u0445\u043e\u0441\u0442\u0438\u043d\u0433 \u0434\u043b\u044f \u0441\u0430\u0439\u0442\u043e\u0432 \u0441 \u0437\u0430\u0449\u0438\u0442\u043e\u0439 \u043e\u0442 DDoS, VPS VDS \u0441\u0435\u0440\u0432\u0435\u0440\u044b","og:type":"article","og:title":"\ud83e\udd47\u0421\u0446\u0435\u043d\u0430\u0440\u0438\u0439 \u0430\u0442\u0430\u043a\u0438 \u043d\u0430 \u043e\u0431\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a \u043d\u0435 \u0443\u0441\u0442\u0430\u043d\u043e\u0432\u043b\u0435\u043d\u043d\u044b\u0445 \u043f\u0440\u0438\u043b\u043e\u0436\u0435\u043d\u0438\u0439 \u0432 Ubuntu | ProHoster","og:description":"\u0418\u0441\u0441\u043b\u0435\u0434\u043e\u0432\u0430\u0442\u0435\u043b\u0438 \u0438\u0437 \u043a\u043e\u043c\u043f\u0430\u043d\u0438\u0438 Aqua Security \u043e\u0431\u0440\u0430\u0442\u0438\u043b\u0438 \u0432\u043d\u0438\u043c\u0430\u043d\u0438\u0435 \u043d\u0430 \u0432\u043e\u0437\u043c\u043e\u0436\u043d\u043e\u0441\u0442\u044c \u0441\u043e\u0432\u0435\u0440\u0448\u0435\u043d\u0438\u044f \u0430\u0442\u0430\u043a\u0438 \u043d\u0430 \u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u0435\u043b\u0435\u0439 \u0434\u0438\u0441\u0442\u0440\u0438\u0431\u0443\u0442\u0438\u0432\u0430 Ubuntu, \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u044f \u043e\u0441\u043e\u0431\u0435\u043d\u043d\u043e\u0441\u0442\u0438 \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0438 \u043e\u0431\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a\u0430 "command-not-found", \u0432\u044b\u0434\u0430\u044e\u0449\u0435\u0433\u043e \u043f\u043e\u0434\u0441\u043a\u0430\u0437\u043a\u0443 \u0432.","og:url":"https:\/\/prohoster.info\/hr\/blog\/news\/sczenarij-ataki-na-obrabotchik-ne-ustanovlennyh-prilozhenij-v-ubuntu","og:image":"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg","og:image:secure_url":"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg","og:image:width":350,"og:image:height":350,"article:published_time":"2024-02-15T02:02:43+00:00","article:modified_time":"2024-02-15T02:02:43+00:00","article:publisher":"https:\/\/www.facebook.com\/prohoster","article:author":"https:\/\/www.facebook.com\/prohoster"},"aioseo_meta_data":[],"gt_translate_keys":[{"key":"link","format":"url"}],"_links":{"self":[{"href":"https:\/\/prohoster.info\/hr\/wp-json\/wp\/v2\/posts\/113601","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/prohoster.info\/hr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/prohoster.info\/hr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/prohoster.info\/hr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/prohoster.info\/hr\/wp-json\/wp\/v2\/comments?post=113601"}],"version-history":[{"count":0,"href":"https:\/\/prohoster.info\/hr\/wp-json\/wp\/v2\/posts\/113601\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/prohoster.info\/hr\/wp-json\/wp\/v2\/media\/113602"}],"wp:attachment":[{"href":"https:\/\/prohoster.info\/hr\/wp-json\/wp\/v2\/media?parent=113601"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/prohoster.info\/hr\/wp-json\/wp\/v2\/categories?post=113601"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/prohoster.info\/hr\/wp-json\/wp\/v2\/tags?post=113601"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}