{"id":36775,"date":"2019-10-31T22:13:44","date_gmt":"2019-10-31T19:13:44","guid":{"rendered":"https:\/\/prohoster.info\/blog\/uyazvimost-v-libreoffice-pozvolyayushhaya-vypolnit-kod-pri-otkrytii-vredonosnyh-dokumentov\/"},"modified":"2019-10-31T22:13:44","modified_gmt":"2019-10-31T19:13:44","slug":"uyazvimost-v-libreoffice-pozvolyayushhaya-vypolnit-kod-pri-otkrytii-vredonosnyh-dokumentov","status":"publish","type":"post","link":"https:\/\/prohoster.info\/et\/blog\/novosti-interneta\/uyazvimost-v-libreoffice-pozvolyayushhaya-vypolnit-kod-pri-otkrytii-vredonosnyh-dokumentov","title":{"rendered":"Turbet\u00f5rge LibreOffice'is, mis v\u00f5imaldab kahjulike dokumentide avamisel koodi t\u00e4ita","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

LibreOffice'i kontoripakett tuvastatud<\/a><\/noindex> haavatavus (CVE-2019-9848<\/a><\/noindex>), mida saab kasutada kuritarvitatud dokumentide avamisel mis tahes koodi t\u00e4itmiseks. <\/p>\n

Haavatavus tuleneb komponent LibreLogo olemasolust, mis on m\u00f5eldud programmeerimise \u00f5petamiseks ja vektorgraafika sisestamiseks. Kui r\u00fcndajal on v\u00f5imalus k\u00e4ivitada LibreLogo k\u00e4ske, siis saab ta t\u00e4ita mis tahes Python-koodi k\u00e4esoleva kasutaja seansi kontekstis, kasutades LibreLogo k\u00e4sku «run». Pythonis saab seej\u00e4rel funktsiooni system() kaudu kutsuda \u00fcles suvalisi s\u00fcsteemik\u00e4ske.<\/p>\n

LibreLogo on valikuline komponent, kuid LibreOffice'is pakutakse vaikimisi makrosid, mis v\u00f5imaldavad LibreLogo k\u00e4ivitamist ja ei n\u00f5ua toimingute sooritamiseks kinnitust ning ei kuvata hoiatust, isegi kui makrode maksimaalne kaitse re\u017eiim (valik «Very High») on sisse l\u00fclitatud.
\nR\u00fcnnakut saab siduda sellise makroga s\u00fcndmuste t\u00f6\u00f6tleja k\u00fclge, mis aktiveeritakse n\u00e4iteks hiire kursorit teatud alale liigutades v\u00f5i dokumendi sisestusfookust aktiveerides (onFocus s\u00fcndmus). Tulemusena v\u00f5ib r\u00fcndaja ettevalmistatud dokumendi avamisel saavutada Python-koodi varjatud t\u00e4itmise, kasutajale m\u00e4rkamatult. N\u00e4iteks demonstreeritud eksploidil avatakse dokument s\u00fcsteemne kalkulaator ilma hoiatuseta.
\n

\"Turbet\u00f5rge<\/center><\/p>\n

Probleem lahendati ilma \u00fcleliigse t\u00e4helepanuta LibreOffice 6.2.5 v\u00e4rskenduses, mis ilmus 1. juulil, kuid nagu selgus, ei olnud probleem t\u00e4ielikult lahendatud (ainult LibreLogo kutse makrodest blokeeriti) ja m\u00f5ned muud r\u00fcnnakuvektorid j\u00e4\u00e4vad lahendamata.<\/a><\/noindex> Lisaks ei ole probleem lahendatud 6.1.6 v\u00e4ljal, mida soovitatakse ettev\u00f5tte kasutajatele. Haavatavus plaanitakse t\u00e4ielikult k\u00f5rvaldada LibreOffice 6.3 v\u00e4ljal, mis on oodata j\u00e4rgmisel n\u00e4dalal. Enne t\u00e4ieliku v\u00e4rskenduse v\u00e4ljat\u00f6\u00f6tamist soovitatakse kasutajatel selgelt v\u00e4lja l\u00fclitada LibreLogo komponent, mis on vaikimisi paljude levituste juures saadaval. Osaliselt on haavatavus lahendatud Debian<\/a><\/noindex>, Fedora<\/a><\/noindex>, SUSE\/openSUSE<\/a><\/noindex> ja Ubuntu<\/a><\/noindex>.<\/p>\n

<\/a><\/noindex><\/p>\n

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

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\u0447\u0442\u043e \u043a\u043e\u043c\u043f\u043e\u043d\u0435\u043d\u0442 LibreLogo, \u043f\u0440\u0435\u0434\u043d\u0430\u0437\u043d\u0430\u0447\u0435\u043d\u043d\u044b\u0439 \u0434\u043b\u044f \u043e\u0431\u0443\u0447\u0435\u043d\u0438\u044f \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044e \u0438 \u0432\u0441\u0442\u0430\u0432\u043a\u0438 \u0432\u0435\u043a\u0442\u043e\u0440\u043d\u044b\u0445 \u0440\u0438\u0441\u0443\u043d\u043a\u043e\u0432, \u0442\u0440\u0430\u043d\u0441\u043b\u0438\u0440\u0443\u0435\u0442 \u0441\u0432\u043e\u0438 \u043e\u043f\u0435\u0440\u0430\u0446\u0438\u0438 \u0432 \u043a\u043e\u0434 \u043d\u0430 \u044f\u0437\u044b\u043a\u0435 Python. \u0418\u043c\u0435\u044f \u0432\u043e\u0437\u043c\u043e\u0436\u043d\u043e\u0441\u0442\u044c \u0432\u044b\u043f\u043e\u043b\u043d\u0438\u0442\u044c \u0438\u043d\u0441\u0442\u0440\u0443\u043a\u0446\u0438\u0438 LibreLogo \u0437\u043b\u043e\u0443\u043c\u044b\u0448\u043b\u0435\u043d\u043d\u0438\u043a \u043c\u043e\u0436\u0435\u0442 \u0434\u043e\u0431\u0438\u0442\u044c\u0441\u044f \u0432\u044b\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u044f \u043b\u044e\u0431\u043e\u0433\u043e \u043a\u043e\u0434\u0430 \u043d\u0430 \u044f\u0437\u044b\u043a\u0435 Python […]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":27546,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-36775","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-novosti-interneta"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\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\n","aioseo_head_json":{"title":"\ud83e\udd47Haavatavus LibreOffice'is v\u00f5imaldab koodi 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