{"id":110781,"date":"2023-10-12T15:10:52","date_gmt":"2023-10-12T13:10:52","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/v-proksi-servere-squid-vyyavleno-55-uyazvimostej-35-iz-kotoryh-poka-ne-ispravleny"},"modified":"2023-10-12T15:10:52","modified_gmt":"2023-10-12T13:10:52","slug":"v-proksi-servere-squid-vyyavleno-55-uyazvimostej-35-iz-kotoryh-poka-ne-ispravleny","status":"publish","type":"post","link":"https:\/\/prohoster.info\/cs\/blog\/news\/v-proksi-servere-squid-vyyavleno-55-uyazvimostej-35-iz-kotoryh-poka-ne-ispravleny","title":{"rendered":"Na proxy serveru Squid bylo odhaleno 55 zranitelnost\u00ed, z nich\u017e 35 dosud nebylo opraveno.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Byly zve\u0159ejn\u011bny v\u00fdsledky nez\u00e1visl\u00e9ho auditu bezpe\u010dnosti otev\u0159en\u00e9ho prokl\u00e1dac\u00edho proxy serveru Squid, kter\u00fd se konal v roce 2021. B\u011bhem kontroly k\u00f3dov\u00e9 z\u00e1kladny projektu bylo zji\u0161t\u011bno 55 zranitelnost\u00ed, z nich\u017e 35 probl\u00e9m\u016f dosud nebylo v\u00fdvoj\u00e1\u0159i opraveno (0-day). V\u00fdvoj\u00e1\u0159i Squid byli o probl\u00e9mech informov\u00e1ni ji\u017e p\u0159ed dv\u011bma a p\u016fl lety, ale dosud pr\u00e1ci na jejich odstran\u011bn\u00ed nedokon\u010dili. Kone\u010dn\u011b se autor auditu rozhodl zve\u0159ejnit informace, ani\u017e by \u010dekal na opravu v\u0161ech probl\u00e9m\u016f, a p\u0159edem o tom informoval v\u00fdvoj\u00e1\u0159e Squid.  <\/p>\n<p>Mezi zji\u0161t\u011bn\u00fdmi zranitelnostmi:  <\/p>\n<ul>\n<li class=\"l\"> P\u0159ete\u010den\u00ed z\u00e1sobn\u00edku v implementaci ha\u0161ov\u00e9ho ov\u011b\u0159ov\u00e1n\u00ed (Digest Authentication), kter\u00e9 se projevuje p\u0159i zpracov\u00e1n\u00ed HTTP hlavi\u010dky Proxy-Authorization s p\u0159\u00edli\u0161 velkou hodnotou pole &#171;Digest nc&#187;.\n<li class=\"l\"> P\u0159\u00edstup k pam\u011bti po jej\u00edm uvoln\u011bn\u00ed v handleru po\u017eadavk\u016f s metodou TRACE.\n<li class=\"l\"> P\u0159\u00edstup k pam\u011bti po jej\u00edm uvoln\u011bn\u00ed p\u0159i zpracov\u00e1n\u00ed HTTP po\u017eadavk\u016f s hlavi\u010dkou &#171;Range&#187; (CVE-2021-31807).\n<li class=\"l\"> P\u0159ete\u010den\u00ed z\u00e1sobn\u00edku p\u0159i zpracov\u00e1n\u00ed HTTP hlavi\u010dky X-Forwarded-For.\n<li class=\"l\"> P\u0159ete\u010den\u00ed z\u00e1sobn\u00edku p\u0159i zpracov\u00e1n\u00ed chunked po\u017eadavk\u016f.\n<li class=\"l\"> P\u0159\u00edstup k pam\u011bti po jej\u00edm uvoln\u011bn\u00ed v webov\u00e9m rozhran\u00ed CacheManager.\n<li class=\"l\"> Cel\u00e9 \u010d\u00edslo p\u0159ete\u010den\u00ed v handleru HTTP hlavi\u010dky Range (CVE-2021-31808).\n<li class=\"l\"> P\u0159\u00edstup k pam\u011bti po jej\u00edm uvoln\u011bn\u00ed a p\u0159ete\u010den\u00ed bufuru v handleru v\u00fdraz\u016f ESI (Edge Side Includes).\n<li class=\"l\"> Mnoho\u010detn\u00e9 \u00faniky pam\u011bti, p\u0159ekro\u010den\u00ed meze bufuru p\u0159i \u010dten\u00ed a probl\u00e9my, kter\u00e9 vedou k hav\u00e1ri\u00edm.  <\/ul>\n<p>Zdroj: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=59915\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d\u044b \u0440\u0435\u0437\u0443\u043b\u044c\u0442\u0430\u0442\u044b \u043d\u0435\u0437\u0430\u0432\u0438\u0441\u0438\u043c\u043e\u0433\u043e \u0430\u0443\u0434\u0438\u0442\u0430 \u0431\u0435\u0437\u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438 \u043e\u0442\u043a\u0440\u044b\u0442\u043e\u0433\u043e \u043a\u044d\u0448\u0438\u0440\u0443\u044e\u0449\u0435\u0433\u043e \u043f\u0440\u043e\u043a\u0441\u0438-\u0441\u0435\u0440\u0432\u0435\u0440\u0430 Squid, \u043f\u0440\u043e\u0432\u0435\u0434\u0451\u043d\u043d\u043e\u0433\u043e \u0432 2021 \u0433\u043e\u0434\u0443. \u0412 \u0445\u043e\u0434\u0435 \u043f\u0440\u043e\u0432\u0435\u0440\u043a\u0438 \u043a\u043e\u0434\u043e\u0432\u043e\u0439 \u0431\u0430\u0437\u044b \u043f\u0440\u043e\u0435\u043a\u0442\u0430 \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u043e 55 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0435\u0439, \u0438\u0437 \u043a\u043e\u0442\u043e\u0440\u044b\u0445 \u0432 \u043d\u0430\u0441\u0442\u043e\u044f\u0449\u0435\u0435 \u0432\u0440\u0435\u043c\u044f 35 \u043f\u0440\u043e\u0431\u043b\u0435\u043c \u043f\u043e\u043a\u0430 \u043d\u0435 \u0438\u0441\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u044b \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a\u0430\u043c\u0438 (0-day). \u0420\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a\u0438 Squid \u0431\u044b\u043b\u0438 \u0443\u0432\u0435\u0434\u043e\u043c\u043b\u0435\u043d\u044b \u043e \u043f\u0440\u043e\u0431\u043b\u0435\u043c\u0430\u0445 \u0435\u0449\u0451 \u0434\u0432\u0430 \u0441 \u043f\u043e\u043b\u043e\u0432\u0438\u043d\u043e\u0439 \u0433\u043e\u0434\u0430 \u043d\u0430\u0437\u0430\u0434, \u043d\u043e \u0442\u0430\u043a \u0438 \u043d\u0435 \u0437\u0430\u0432\u0435\u0440\u0448\u0438\u043b\u0438 \u0440\u0430\u0431\u043e\u0442\u0443 \u043f\u043e \u0438\u0445 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u044e. [&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-110781","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.3 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u041e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d\u044b \u0440\u0435\u0437\u0443\u043b\u044c\u0442\u0430\u0442\u044b \u043d\u0435\u0437\u0430\u0432\u0438\u0441\u0438\u043c\u043e\u0433\u043e \u0430\u0443\u0434\u0438\u0442\u0430 \u0431\u0435\u0437\u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438 \u043e\u0442\u043a\u0440\u044b\u0442\u043e\u0433\u043e \u043a\u044d\u0448\u0438\u0440\u0443\u044e\u0449\u0435\u0433\u043e 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