{"id":54112,"date":"2019-12-18T00:00:00","date_gmt":"2019-12-17T21:00:00","guid":{"rendered":"https:\/\/prohoster.info\/blog\/blog_prohoster\/ataka-na-sistemy-online-kompilyatsii-cherez-manipulyatsiyu-s-zagolovochnymi-fajlami"},"modified":"2020-02-18T14:02:05","modified_gmt":"2020-02-18T11:02:05","slug":"ataka-na-sistemy-online-kompilyatsii-cherez-manipulyatsiyu-s-zagolovochnymi-fajlami","status":"publish","type":"post","link":"https:\/\/prohoster.info\/it\/blog\/news\/ataka-na-sistemy-online-kompilyatsii-cherez-manipulyatsiyu-s-zagolovochnymi-fajlami","title":{"rendered":"Attacco ai sistemi di compilazione online attraverso la manipolazione dei file di intestazione.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Hanno B\u00f6ck, autore del progetto <noindex><a rel=\"nofollow\" href=\"https:\/\/fuzzing-project.org\/\">fuzzing-project.org<\/a><\/noindex>,  <noindex><a rel=\"nofollow\" href=\"https:\/\/blog.hboeck.de\/archives\/898-include-etcshadow.html\">ha fatto notare<\/a><\/noindex> sull vulnerabilit\u00e0 delle interfacce di compilazione interattiva che consentono l'elaborazione di codice esterno in linguaggio C. Specificando un percorso arbitrario nella direttiva \"#include\", l'errore di compilazione include il contenuto del file che non \u00e8 riuscito a compilarsi.<\/p>\n<p>Ad esempio, sostituendo in uno dei servizi online il codice \"#include \" si \u00e8 riusciti a ottenere l'hash della password dell'utente root dal file \/etc\/shadow, il che dimostra anche che il servizio web viene eseguito con i diritti di root e avvia comandi di compilazione sotto l'utente root (non \u00e8 escluso che durante la compilazione sia stato utilizzato un contenitore isolato, ma l'esecuzione con diritti di root nel contenitore \u00e8 comunque un problema). Il servizio problematico in cui si \u00e8 riusciti a riprodurre il problema non \u00e8 attualmente reso pubblico. I tentativi di aprire file nel pseudo FS \/proc non sono stati fruttuosi poich\u00e9 GCC li percepisce come file vuoti, ma l'apertura di file da \/sys funziona.<\/p>\n<p><noindex><a rel=\"nofollow\" name=\"link\"><\/a><\/noindex><\/p>\n<p>Fonte: <a \ncontent=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=52048\">opennet.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>Hanno B&#246;ck, \u0430\u0432\u0442\u043e\u0440 \u043f\u0440\u043e\u0435\u043a\u0442\u0430 fuzzing-project.org, \u043e\u0431\u0440\u0430\u0442\u0438\u043b \u0432\u043d\u0438\u043c\u0430\u043d\u0438\u0435 \u043d\u0430 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u0438\u043d\u0442\u0435\u0440\u0444\u0435\u0439\u0441\u043e\u0432 \u0438\u043d\u0442\u0435\u0440\u0430\u043a\u0442\u0438\u0432\u043d\u043e\u0439 \u043a\u043e\u043c\u043f\u0438\u043b\u044f\u0446\u0438\u0438, \u0434\u043e\u043f\u0443\u0441\u043a\u0430\u044e\u0449\u0438\u0445 \u043e\u0431\u0440\u0430\u0431\u043e\u0442\u043a\u0443 \u0432\u043d\u0435\u0448\u043d\u0435\u0433\u043e \u043a\u043e\u0434\u0430 \u043d\u0430 \u044f\u0437\u044b\u043a\u0435 \u0421\u0438. \u041f\u0440\u0438 \u0443\u043a\u0430\u0437\u0430\u043d\u0438\u0438 \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u043b\u044c\u043d\u043e\u0433\u043e \u043f\u0443\u0442\u0438 \u0432 \u0434\u0438\u0440\u0435\u043a\u0442\u0438\u0432\u0435 &#171;#include&#187; \u043e\u0448\u0438\u0431\u043a\u0430 \u043a\u043e\u043c\u043f\u0438\u043b\u044f\u0446\u0438\u0438 \u0432\u043a\u043b\u044e\u0447\u0430\u0435\u0442 \u0441\u043e\u0434\u0435\u0440\u0436\u0438\u043c\u043e\u0435 \u0444\u0430\u0439\u043b\u0430, \u043a\u043e\u0442\u043e\u0440\u044b\u0439 \u043d\u0435 \u0443\u0434\u0430\u043b\u043e\u0441\u044c \u0441\u043a\u043e\u043c\u043f\u0438\u043b\u0438\u0440\u043e\u0432\u0430\u0442\u044c. \u041d\u0430\u043f\u0440\u0438\u043c\u0435\u0440, \u043f\u043e\u0434\u0441\u0442\u0430\u0432\u0438\u0432 \u0432 \u043e\u0434\u043d\u043e\u043c \u0438\u0437 online-\u0441\u0435\u0440\u0432\u0438\u0441\u043e\u0432 \u0432 \u043a\u043e\u0434 &#171;#include &lt;\/etc\/shadow&gt;&#187; \u043d\u0430 \u0432\u044b\u0445\u043e\u0434\u0435 \u0443\u0434\u0430\u043b\u043e\u0441\u044c \u043f\u043e\u043b\u0443\u0447\u0438\u0442\u044c \u0445\u044d\u0448 \u043f\u0430\u0440\u043e\u043b\u044f \u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u0435\u043b\u044f root \u0438\u0437 \u0444\u0430\u0439\u043b\u0430 [&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-54112","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.1.1 - 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