{"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\/hu\/blog\/news\/sczenarij-ataki-na-obrabotchik-ne-ustanovlennyh-prilozhenij-v-ubuntu","title":{"rendered":"T\u00e1mad\u00e1si forgat\u00f3k\u00f6nyv Ubuntu ismeretlen alkalmaz\u00e1sok kezel\u0151j\u00e9re","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Az Aqua Security kutat\u00f3i felh\u00edvt\u00e1k a figyelmet arra a lehet\u0151s\u00e9gre, hogy t\u00e1mad\u00e1st lehet v\u00e9grehajtani az Ubuntu disztrib\u00faci\u00f3 felhaszn\u00e1l\u00f3ival szemben a «command-not-found» feldolgoz\u00f3 megval\u00f3s\u00edt\u00e1s\u00e1nak saj\u00e1toss\u00e1gait kihaszn\u00e1lva, amely javaslatokat ad a hi\u00e1nyz\u00f3 programok ind\u00edt\u00e1sakor. A probl\u00e9ma az, hogy a «command-not-found» nemcsak a hivatalos t\u00e1rol\u00f3kban tal\u00e1lhat\u00f3 csomagokat veszi figyelembe a hi\u00e1nyz\u00f3 parancsok \u00e9rt\u00e9kel\u00e9sekor, hanem a snapcraft.io katal\u00f3gusb\u00f3l sz\u00e1rmaz\u00f3 snap-csomagokat is. <\/p>\n

A snapcraft.io katal\u00f3gus tartalma alapj\u00e1n a «command-not-found» nem veszi figyelembe a csomag \u00e1llapot\u00e1t, \u00e9s olyan csomagokat is mag\u00e1ban foglal, amelyeket ellen\u0151rizetlen felhaszn\u00e1l\u00f3k adtak hozz\u00e1 a katal\u00f3gushoz. \u00cdgy a t\u00e1mad\u00f3 olyan csomagot helyezhet el a snapcraft.io-n, amely rejtett k\u00e1rt\u00e9kony tartalmat tartalmaz, \u00e9s neve \u00e1tfed\u00e9sben van a l\u00e9tez\u0151 DEB-csomagokkal, amelyek eredetileg nem voltak a t\u00e1rol\u00f3ban, vagy olyan hamis alkalmaz\u00e1sokat, amelyek nevei a n\u00e9pszer\u0171 seg\u00e9dprogramok hib\u00e1s megad\u00e1s\u00e1b\u00f3l sz\u00e1rmaz\u00f3 tipikus elg\u00e9pel\u00e9sekre utalnak. <\/p>\n

P\u00e9ld\u00e1ul olyan csomagokat lehet elhelyezni, mint a «tracert» \u00e9s a «tcpdamp», arra sz\u00e1m\u00edtva, hogy a felhaszn\u00e1l\u00f3 hib\u00e1zik a «traceroute» \u00e9s a «tcpdump» elnevez\u00e9sek be\u00edr\u00e1s\u00e1n\u00e1l, \u00e9s a «command-not-found» javasolni fogja a snapcraft.io-n a t\u00e1mad\u00f3 \u00e1ltal elhelyezett k\u00e1rt\u00e9kony csomagok telep\u00edt\u00e9s\u00e9t. A felhaszn\u00e1l\u00f3 tal\u00e1n nem veszi \u00e9szre a csapd\u00e1t, \u00e9s azt hiheti, hogy a rendszer csak megb\u00edzhat\u00f3 csomagokat aj\u00e1nl. A t\u00e1mad\u00f3 a snapcraft.io-n olyan csomagot is elhelyezhet, amelynek neve \u00e1tfed\u00e9sben van a l\u00e9tez\u0151 deb-csomagokkal, \u00e9s ebben az esetben a «command-not-found» k\u00e9t telep\u00edt\u00e9si aj\u00e1nl\u00e1st fog adni, egy deb \u00e9s egy snap form\u00e1j\u00e1ban, \u00e9s a felhaszn\u00e1l\u00f3 a snap-et v\u00e1laszthatja, mivel azt biztons\u00e1gosabbnak tartja, vagy mert vonz\u00f3bb a frissebb verzi\u00f3.

\"T\u00e1mad\u00e1si<\/center> <\/p>\n

A snap form\u00e1tum\u00fa alkalmaz\u00e1sok, amelyek automatikus fel\u00fclvizsg\u00e1latot kapnak a snapcraft.io-n, csak izol\u00e1lt k\u00f6rnyezetben futhatnak (izol\u00e1latlan snap csomagok csak k\u00e9zi fel\u00fclvizsg\u00e1lat ut\u00e1n publik\u00e1lhat\u00f3k). A t\u00e1mad\u00f3nak elegend\u0151 lehet, ha izol\u00e1lt k\u00f6rnyezetben, internet hozz\u00e1f\u00e9r\u00e9ssel v\u00e9gzi a folyamatokat, p\u00e9ld\u00e1ul kriptovaluta b\u00e1ny\u00e1szatra, DDoS t\u00e1mad\u00e1sok v\u00e9grehajt\u00e1s\u00e1ra vagy spamek k\u00fcld\u00e9s\u00e9re. <\/p>\n

A t\u00e1mad\u00f3 k\u00e1rt\u00e9kony csomagokban olyan m\u00f3dszereket is alkalmazhat az elszigetel\u00e9s \u00fatj\u00e1nak kiker\u00fcl\u00e9s\u00e9re, mint a jav\u00edtatlan sebezhet\u0151s\u00e9gek kihaszn\u00e1l\u00e1sa a magban \u00e9s az elszigetel\u00e9s biztos\u00edt\u00e1s\u00e1nak mechanizmusaiban, a snap interf\u00e9szek aktiv\u00e1l\u00e1sa k\u00fcls\u0151 forr\u00e1sok el\u00e9r\u00e9s\u00e9re (hang- \u00e9s videofelv\u00e9telek titkos r\u00f6gz\u00edt\u00e9se c\u00e9lj\u00e1b\u00f3l) vagy a billenty\u0171zet bevitel\u00e9nek elfog\u00e1sa az X11 protokoll haszn\u00e1latakor (sandbox k\u00f6rnyezetben m\u0171k\u00f6d\u0151 billenty\u0171le\u00fct\u00e9seket r\u00f6gz\u00edt\u0151 programok l\u00e9trehoz\u00e1sa).
\n
Forr\u00e1s: 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\udd47T\u00e1mad\u00e1si forgat\u00f3k\u00f6nyv a nem telep\u00edtett alkalmaz\u00e1sok kezel\u0151j\u00e9re Ubuntu rendszeren | ProHoster","description":"Az Aqua Security kutat\u00f3i arra figyeltek fel, hogy a \"command-not-found\" kezel\u0151 megval\u00f3s\u00edt\u00e1s\u00e1nak saj\u00e1toss\u00e1gait kihaszn\u00e1lva t\u00e1mad\u00e1sok ind\u00edthat\u00f3k az Ubuntu disztrib\u00faci\u00f3 felhaszn\u00e1l\u00f3i ellen.","canonical_url":"https:\/\/prohoster.info\/hu\/blog\/news\/sczenarij-ataki-na-obrabotchik-ne-ustanovlennyh-prilozhenij-v-ubuntu","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":null,"og:locale":"hu_HU","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\/hu\/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\/hu\/wp-json\/wp\/v2\/posts\/113601","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/prohoster.info\/hu\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/prohoster.info\/hu\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/prohoster.info\/hu\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/prohoster.info\/hu\/wp-json\/wp\/v2\/comments?post=113601"}],"version-history":[{"count":0,"href":"https:\/\/prohoster.info\/hu\/wp-json\/wp\/v2\/posts\/113601\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/prohoster.info\/hu\/wp-json\/wp\/v2\/media\/113602"}],"wp:attachment":[{"href":"https:\/\/prohoster.info\/hu\/wp-json\/wp\/v2\/media?parent=113601"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/prohoster.info\/hu\/wp-json\/wp\/v2\/categories?post=113601"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/prohoster.info\/hu\/wp-json\/wp\/v2\/tags?post=113601"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}