{"id":123965,"date":"2025-05-03T15:05:07","date_gmt":"2025-05-03T13:05:07","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/uyazvimost-v-libjs-pozvolyayushhaya-vypolnit-kod-pri-otkrytii-straniczy-v-brauzere-ladybird"},"modified":"2025-05-03T15:05:07","modified_gmt":"2025-05-03T13:05:07","slug":"uyazvimost-v-libjs-pozvolyayushhaya-vypolnit-kod-pri-otkrytii-straniczy-v-brauzere-ladybird","status":"publish","type":"post","link":"https:\/\/prohoster.info\/et\/blog\/novosti-interneta\/uyazvimost-v-libjs-pozvolyayushhaya-vypolnit-kod-pri-otkrytii-straniczy-v-brauzere-ladybird","title":{"rendered":"LibJSi haavatavus, mis v\u00f5imaldab koodi t\u00e4itmist Ladybird veebibrauseris lehe avamisel","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Ladybird veebibrauseris kasutatavas JavaScript mootoris LibJS tuvastati haavatavus (CVE-2025-47154), mis v\u00f5imaldab r\u00fcnnakul oma koodi k\u00e4ivitamist s\u00fcsteemis, kui t\u00f6\u00f6deldakse spetsiaalselt vormindatud JavaScripti koodi. Haavatavus on p\u00f5hjustatud m_argument_values_buffer vektori m\u00e4lu vabastamisest, millele j\u00e4i viit selle arguments_list struktuuri, mis t\u00f5i kaasa juurdep\u00e4\u00e4su juba vabastatud m\u00e4lule. T\u00f6\u00f6tab eksploidi protot\u00fc\u00fcp on saadaval.    <\/p>\n<p>Probleemi avastanud teadlane viis l\u00e4bi fuzzing-testi LibJS-is, mille k\u00e4igus tuvastati 10 krahhi. \u00dche krahhi anal\u00fc\u00fcs n\u00e4itas, et probleem v\u00f5ib olla \u00e4ra kasutatav JavaScript-koodi t\u00f6\u00f6tlemisel. Haavatavus v\u00f5imaldas lugeda ja kirjutada protsessi suvalistesse m\u00e4lu piirkondadesse. Koodi t\u00e4itmine viidi ellu eksploidi kaudu tagasit\u00f5ukefunktsiooni ukse asendamisega. Tagasiorienteeritud programmeerimise (ROP - Return-Oriented Programming, eksploidi kujundamine juba olemasolevatest masiinijuhiste fragmentidest, mis l\u00f5pevad juhtimise tagastamise k\u00e4suga) abil loodi ahel s\u00fcsteemikutsumise execve teostamiseks v\u00e4lise rakenduse k\u00e4ivitatud.        <center>  <video controls=\"\" style=\"width: 700px; height: 400px; max-width:100%\"><source src=\"https:\/\/jessie.cafe\/posts\/pwning-ladybirds-libjs\/files\/ladybird-uaf.mp4\" type=\"video\/mp4\"><\/video>  <\/center>        <\/p>\n<p>Ladybird brauserit arendab Andreas Kling, kes on varem t\u00f6\u00f6tanud firmades Nokia, kus ta arendas KHTML, ja hiljem Apple'is, olles \u00fcks Safari arendajatest. Praegu on Ladybird arenduse staadium pre-alfaversioon, mis sobib ainult arendajatele. Algusest peale loodi projekt rakenduseks SerenityOS operatsioonis\u00fcsteemile, kuid eelmisel suvel eraldati see eraldi projektiks ja sai 1 miljoni dollari suuruse toetuse. Brauser on kirjutatud C++ keeles (olemas on plaan minna \u00fcle Swift keelele) ja seda levitatakse BSD litsentsi alusel. Projeekti raames arendatakse oma veebimootorit LibWeb, JavaScripti t\u00f5lkijat LibJS ja sellega seotud teeke.<br \/>\n<br \/>Allikas: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=63178\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0412 JavaScript-\u0434\u0432\u0438\u0436\u043a\u0435 LibJS, \u043f\u0440\u0438\u043c\u0435\u043d\u044f\u0435\u043c\u043e\u043c \u0432 web-\u0431\u0440\u0430\u0443\u0437\u0435\u0440\u0435 Ladybird, \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u0430 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c (CVE-2025-47154), \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0430\u044f \u0434\u043e\u0431\u0438\u0442\u044c\u0441\u044f \u0432\u044b\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u044f \u0441\u0432\u043e\u0435\u0433\u043e \u043a\u043e\u0434\u0430 \u0432 \u0441\u0438\u0441\u0442\u0435\u043c\u0435 \u043f\u0440\u0438 \u043e\u0431\u0440\u0430\u0431\u043e\u0442\u043a\u0435 \u0441\u043f\u0435\u0446\u0438\u0430\u043b\u044c\u043d\u043e \u043e\u0444\u043e\u0440\u043c\u043b\u0435\u043d\u043d\u043e\u0433\u043e JavaScript-\u043a\u043e\u0434\u0430. \u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u0432\u044b\u0437\u0432\u0430\u043d\u0430 \u043e\u0441\u0432\u043e\u0431\u043e\u0436\u0434\u0435\u043d\u0438\u0435\u043c \u043f\u0430\u043c\u044f\u0442\u0438 \u043d\u0430 \u0432\u0435\u043a\u0442\u043e\u0440 m_argument_values_buffer, \u043d\u0430 \u043a\u043e\u0442\u043e\u0440\u044b\u0439 \u043e\u0441\u0442\u0430\u0432\u0430\u043b\u0441\u044f \u0443\u043a\u0430\u0437\u0430\u0442\u0435\u043b\u044c \u0432 \u0441\u0442\u0440\u0443\u043a\u0442\u0443\u0440\u0435 arguments_list, \u0447\u0442\u043e \u043f\u0440\u0438\u0432\u043e\u0434\u0438\u043b\u043e \u043a \u043e\u0431\u0440\u0430\u0449\u0435\u043d\u0438\u044e \u043a \u0443\u0436\u0435 \u043e\u0441\u0432\u043e\u0431\u043e\u0436\u0434\u0451\u043d\u043d\u043e\u0439 \u043e\u0431\u043b\u0430\u0441\u0442\u0438 \u043f\u0430\u043c\u044f\u0442\u0438. \u0414\u043e\u0441\u0442\u0443\u043f\u0435\u043d \u0440\u0430\u0431\u043e\u0447\u0438\u0439 \u043f\u043e\u0442\u043e\u0442\u0438\u043f \u044d\u043a\u0441\u043f\u043b\u043e\u0438\u0442\u0430. \u0412\u044b\u044f\u0432\u0438\u0432\u0448\u0438\u0439 \u043f\u0440\u043e\u0431\u043b\u0435\u043c\u0443 \u0438\u0441\u0441\u043b\u0435\u0434\u043e\u0432\u0430\u0442\u0435\u043b\u044c \u043f\u0440\u043e\u0432\u0451\u043b fuzzing-\u0442\u0435\u0441\u0442\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u0435 LibJS, [&hellip;]<\/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-123965","post","type-post","status-publish","format-standard","hentry","category-novosti-interneta"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.10 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u0412 JavaScript-\u0434\u0432\u0438\u0436\u043a\u0435 LibJS, \u043f\u0440\u0438\u043c\u0435\u043d\u044f\u0435\u043c\u043e\u043c \u0432 web-\u0431\u0440\u0430\u0443\u0437\u0435\u0440\u0435 Ladybird, \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u0430 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c (CVE-2025-47154), \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0430\u044f \u0434\u043e\u0431\u0438\u0442\u044c\u0441\u044f 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Haavatavus tuleneb m_argument_values_buffer vektori m\u00e4lu vabastamisest, millele j\u00e4i viitaja arguments_list struktuuris, mis p\u00f5hjustas juba vabastatud m\u00e4lu ala juurde p\u00e4\u00e4semise. Funktsionaalne eksploidimise protot\u00fc\u00fcp on saadaval. Probleemi avastanud teadlane viis l\u00e4bi LibJS-i fuzzing-testi.","canonical_url":"https:\/\/prohoster.info\/et\/blog\/novosti-interneta\/uyazvimost-v-libjs-pozvolyayushhaya-vypolnit-kod-pri-otkrytii-straniczy-v-brauzere-ladybird","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\udd47\u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u0432 LibJS, \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0430\u044f \u0432\u044b\u043f\u043e\u043b\u043d\u0438\u0442\u044c \u043a\u043e\u0434 \u043f\u0440\u0438 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