{"id":74109,"date":"2020-03-14T08:42:14","date_gmt":"2020-03-14T05:42:14","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/loadlibrary-proslojka-dlya-zagruzki-windows-dll-v-linux-prilozheniya"},"modified":"2020-03-14T08:42:14","modified_gmt":"2020-03-14T05:42:14","slug":"loadlibrary-proslojka-dlya-zagruzki-windows-dll-v-linux-prilozheniya","status":"publish","type":"post","link":"https:\/\/prohoster.info\/et\/blog\/novosti-interneta\/loadlibrary-proslojka-dlya-zagruzki-windows-dll-v-linux-prilozheniya","title":{"rendered":"LoadLibrary, Windows DLL-de laadimise kiht Linuxi rakendustes","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Tavis Ormandy (Tavis Ormandy<\/a><\/noindex>), Google'i turvauurija, arendab projekti LoadLibrary<\/a><\/noindex>, mis on suunatud Windowsis kokku pandud DLL-raamatukogude portimisele nende kasutamiseks Linuxi rakendustes. Projekt pakub laadimiskihti, mille abil saab laadida PE\/COFF formaadis DLL-faili ja kutsuda v\u00e4lja selle sees m\u00e4\u00e4ratud funktsioone. PE\/COFF laadija p\u00f5hineb koodil ndiswrapper<\/a><\/noindex>. Projekti kood GNU \u00dcldine Avaliku litsentsi alusel.<\/a><\/noindex> GPLv2 litsentsi all.<\/p>\n

LoadLibrary t\u00e4idab raamatukogude laadimise ja olemasolevate s\u00fcmbolite importimise funktsioone, pakkudes Linuxi rakendusele dlopen-stiilis API-d. \u00dchendatavat koodi saab siluda gdb, ASAN ja Valgrind abil. On ette n\u00e4htud v\u00f5imalus t\u00e4itmise ajal koodi kohandada, \u00fchendades hook'e ja rakendades patch'e (runtime patching). Toetatakse C++ erandite k\u00e4itlemist ja taastamist.<\/p>\n

Projekti eesm\u00e4rk on korraldada skaleeritavat ja t\u00f5husat hajutatud fuzzing-testimist DLL-raamatukogude jaoks Linuxi keskkonnas. Windowsis ei v\u00f5imalda fuzzing- ja coverage-testid saavutada vajalikku efektiivsust ning sageli n\u00f5uavad nad eraldi virtualiseeritud Windowsi eksemplari k\u00e4ivitamist, eriti keerukamate toodete, nagu n\u00e4iteks viiruset\u00f5rje tarkvara, anal\u00fc\u00fcsimisel, mis h\u00f5lmab tuuma ja kasutajaruumi t\u00f6\u00f6d. LoadLibrary abil uurivad Google'i teadlased haavatavusi videokooderites, viiruset\u00f5rje skannerites, andmete dekompressiooni raamatukogudes, pildide dekooderites jne. <\/p>\n

N\u00e4iteks LoadLibrary abil \u00f5nnestus portida Windows Defenderi viiruset\u00f5rje mootor Linuxis t\u00f6\u00f6tamiseks. Uuring mpengine.dll, mis on Windows Defenderi aluseks, v\u00f5imaldas anal\u00fc\u00fcsida suurt hulka keerulisi erinevate formaatide t\u00f6\u00f6tlejaid, FS-emulaatoreid ja keele t\u00f5lgendajaid, mis potentsiaalselt pakuvad vektoreid v\u00f5imalikke<\/a><\/noindex> r\u00fcnnakute<\/a><\/noindex>.<\/p>\n

LoadLibrary'd kasutati ka haavatavuste tuvastamiseks kaughaavatavuse<\/a><\/noindex> Avast viiruset\u00f5rje paketis. DLL-i uurimisel selgus, et v\u00f5tmeprivileegidega skaneerimise protsess h\u00f5lmab t\u00e4isfunktsionaalset JavaScripti t\u00f5lgendajat, mida kasutatakse kolmandate osapoolte JavaScripti koodi t\u00e4itmise simuleerimiseks. See protsess ei ole isoleeritud sandbox keskkonda, ei v\u00e4henda \u00f5igusi ning anal\u00fc\u00fcsib kontrollimata v\u00e4liseid andmeid failis\u00fcsteemist ja vahelep\u00fc\u00fctud v\u00f5rgu liiklusest. Kuna iga haavatavust selles keerulises ja kaitsetu protsessis v\u00f5ib potentsiaalselt p\u00f5hjustada kogu s\u00fcsteemi kaugkompromiteerimist, on LoadLibrary baasil v\u00e4lja t\u00f6\u00f6tatud spetsiaalne kattekiht. avscript<\/a><\/noindex> antud Linuxi keskkonnas Avast viiruset\u00f5rje skanneri haavatavuste anal\u00fc\u00fcsimiseks.<\/p>\n

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

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

\u0422\u044d\u0432\u0438\u0441 \u041e\u0440\u043c\u0430\u043d\u0434\u0438 (Tavis Ormandy), \u0438\u0441\u0441\u043b\u0435\u0434\u043e\u0432\u0430\u0442\u0435\u043b\u044c \u0431\u0435\u0437\u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438 \u0438\u0437 Google, \u0440\u0430\u0437\u0432\u0438\u0432\u0430\u0435\u0442 \u043f\u0440\u043e\u0435\u043a\u0442 LoadLibrary, \u043d\u0430\u0446\u0435\u043b\u0435\u043d\u043d\u044b\u0439 \u043d\u0430 \u043f\u043e\u0440\u0442\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u0435 \u0441\u043e\u0431\u0440\u0430\u043d\u043d\u044b\u0445 \u0434\u043b\u044f Windows DLL-\u0431\u0438\u0431\u043b\u0438\u043e\u0442\u0435\u043a \u0434\u043b\u044f \u0438\u0445 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u044f \u0432 \u043f\u0440\u0438\u043b\u043e\u0436\u0435\u043d\u0438\u044f\u0445 \u0434\u043b\u044f Linux. \u041f\u0440\u043e\u0435\u043a\u0442\u043e\u043c \u043f\u0440\u0435\u0434\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u0442\u0441\u044f \u0431\u0438\u0431\u043b\u0438\u043e\u0442\u0435\u043a\u0430-\u043f\u0440\u043e\u0441\u043b\u043e\u0439\u043a\u0430, \u043f\u0440\u0438 \u043f\u043e\u043c\u043e\u0449\u0438 \u043a\u043e\u0442\u043e\u0440\u043e\u0439 \u043c\u043e\u0436\u043d\u043e \u0437\u0430\u0433\u0440\u0443\u0437\u0438\u0442\u044c DLL-\u0444\u0430\u0439\u043b \u0432 \u0444\u043e\u0440\u043c\u0430\u0442\u0435 PE\/COFF \u0438 \u0432\u044b\u0437\u0432\u0430\u0442\u044c \u043e\u043f\u0440\u0435\u0434\u0435\u043b\u0451\u043d\u043d\u044b\u0435 \u0432 \u043d\u0451\u043c \u0444\u0443\u043d\u043a\u0446\u0438\u0438. \u0417\u0430\u0433\u0440\u0443\u0437\u0447\u0438\u043a PE\/COFF \u043e\u0441\u043d\u043e\u0432\u0430\u043d \u043d\u0430 \u043a\u043e\u0434\u0435 ndiswrapper. \u041a\u043e\u0434 \u043f\u0440\u043e\u0435\u043a\u0442\u0430 \u0440\u0430\u0441\u043f\u0440\u043e\u0441\u0442\u0440\u0430\u043d\u044f\u0435\u0442\u0441\u044f \u043f\u043e\u0434 \u043b\u0438\u0446\u0435\u043d\u0437\u0438\u0435\u0439 GPLv2. […]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-74109","post","type-post","status-publish","format-standard","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\udd47LoadLibrary, liides Windowsi DLL-ide laadimiseks Linuxi rakendustes | ProHoster","description":"Tavis Ormandy, Google'i k\u00fcberturbeuurija, arendab LoadLibrary projekti, mille eesm\u00e4rk on portida Windowsile kokku pandud DLL-raamatukogusid nende kasutamiseks Linuxi rakendustes. Projekt pakub liidese raamatukogu, mille abil saab laadida PE\/COFF formaadis DLL-faili ja kutsuda v\u00e4lja selle funktsioone. PE\/COFF laadija p\u00f5hineb ndiswrapperi koodil. Projekti kood levitatakse GPLv2 litsentsi alusel.","canonical_url":"https:\/\/prohoster.info\/et\/blog\/novosti-interneta\/loadlibrary-proslojka-dlya-zagruzki-windows-dll-v-linux-prilozheniya","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":null,"og:locale":"et_EE","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\udd47LoadLibrary, \u043f\u0440\u043e\u0441\u043b\u043e\u0439\u043a\u0430 \u0434\u043b\u044f \u0437\u0430\u0433\u0440\u0443\u0437\u043a\u0438 Windows DLL \u0432 Linux-\u043f\u0440\u0438\u043b\u043e\u0436\u0435\u043d\u0438\u044f | ProHoster","og:description":"\u0422\u044d\u0432\u0438\u0441 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