{"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\/pl\/blog\/news\/v-proksi-servere-squid-vyyavleno-55-uyazvimostej-35-iz-kotoryh-poka-ne-ispravleny","title":{"rendered":"W serwerze proxy Squid zidentyfikowano 55 podatno\u015bci, z czego 35 pozostaje jeszcze do naprawienia.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Opublikowane wyniki niezale\u017cnego audytu bezpiecze\u0144stwa otwartego serwera proxy cache Squid, przeprowadzonego w 2021 roku. W trakcie inspekcji kodu projektu wykryto 55 podatno\u015bci, z czego obecnie 35 problem\u00f3w nie zosta\u0142o jeszcze naprawionych przez tw\u00f3rc\u00f3w (0-day). Tw\u00f3rcy Squid zostali powiadomieni o problemach dwa i p\u00f3\u0142 roku temu, ale nie uko\u0144czyli jeszcze pracy nad ich usuni\u0119ciem. Ostatecznie autor audytu postanowi\u0142 ujawni\u0107 informacje, nie czekaj\u0105c na napraw\u0119 wszystkich problem\u00f3w, i wcze\u015bniej powiadomi\u0142 o tym tw\u00f3rc\u00f3w Squid.  <\/p>\n<p>W\u015br\u00f3d wykrytych podatno\u015bci:  <\/p>\n<ul>\n<li class=\"l\"> Przepe\u0142nienie stosu w implementacji uwierzytelniania za pomoc\u0105 has\u0142a (Digest Authentication), objawiaj\u0105ce si\u0119 podczas przetwarzania nag\u0142\u00f3wka HTTP Proxy-Authorization z zbyt du\u017c\u0105 warto\u015bci\u0105 pola &#171;Digest nc&#187;.\n<li class=\"l\"> Dost\u0119p do pami\u0119ci po jej zwolnieniu w obs\u0142udze \u017c\u0105da\u0144 z metod\u0105 TRACE.\n<li class=\"l\"> Dost\u0119p do pami\u0119ci po jej zwolnieniu podczas przetwarzania \u017c\u0105da\u0144 HTTP z nag\u0142\u00f3wkiem &#171;Range&#187; (CVE-2021-31807).\n<li class=\"l\"> Przepe\u0142nienie stosu podczas przetwarzania nag\u0142\u00f3wka HTTP X-Forwarded-For.\n<li class=\"l\"> Przepe\u0142nienie stosu podczas obs\u0142ugi \u017c\u0105da\u0144 chunked.\n<li class=\"l\"> Dost\u0119p do pami\u0119ci po jej zwolnieniu w interfejsie webowym CacheManager.\n<li class=\"l\"> Przepe\u0142nienie ca\u0142kowite w obs\u0142udze nag\u0142\u00f3wka HTTP Range (CVE-2021-31808).\n<li class=\"l\"> Dost\u0119p do pami\u0119ci po jej zwolnieniu oraz przepe\u0142nienie bufora w obs\u0142udze wyra\u017ce\u0144 ESI (Edge Side Includes).\n<li class=\"l\"> Liczne wycieki pami\u0119ci, przekroczenia bufora podczas odczytu i problemy prowadz\u0105ce do awarii.  <\/ul>\n<p>\u0179r\u00f3d\u0142o: <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 5.0.1.1 - 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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