{"id":78493,"date":"2020-04-19T19:42:00","date_gmt":"2020-04-19T17:42:00","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/uyazvimost-v-proksi-servere-squid-pozvolyayushhaya-obojti-ogranicheniya-dostupa"},"modified":"2020-04-19T19:42:00","modified_gmt":"2020-04-19T17:42:00","slug":"uyazvimost-v-proksi-servere-squid-pozvolyayushhaya-obojti-ogranicheniya-dostupa","status":"publish","type":"post","link":"https:\/\/prohoster.info\/es\/blog\/news\/uyazvimost-v-proksi-servere-squid-pozvolyayushhaya-obojti-ogranicheniya-dostupa","title":{"rendered":"Vulnerabilidad en el servidor proxy Squid que permite eludir las restricciones de acceso.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p><noindex><a rel=\"nofollow\" href=\"https:\/\/www.mail-archive.com\/squid-announce@lists.squid-cache.org\/msg00107.html\">Revelados<\/a><\/noindex> informaci\u00f3n sobre vulnerabilidades en el servidor proxy <noindex><a rel=\"nofollow\" href=\"http:\/\/www.squid-cache.org\/\">Squid<\/a><\/noindex>, que fueron eliminados sin m\u00e1s ruido hace un a\u00f1o en la versi\u00f3n Squid 4.8. Los problemas residen en el c\u00f3digo que maneja el bloque \u00ab@\u00bb al comienzo de la URL (\u00abuser@host\u00bb) y permiten eludir las reglas de restricci\u00f3n de acceso, enviar contenido a la cach\u00e9 y realizar un ataque utilizando scripting entre sitios.<\/p>\n<ul>\n<li class=\"l\"> <noindex><a rel=\"nofollow\" href=\"http:\/\/cve.mitre.org\/cgi-bin\/cvename.cgi?name=CVE-2019-12524\">CVE-2019-12524<\/a><\/noindex> \u2014 el cliente, utilizando una URL especialmente dise\u00f1ada, puede eludir las reglas establecidas mediante la directiva url_regex, y acceder a informaci\u00f3n confidencial sobre el proxy y el tr\u00e1fico procesado (obtener acceso a la interfaz de Cache Manager).\n<li class=\"l\"> <noindex><a rel=\"nofollow\" href=\"http:\/\/cve.mitre.org\/cgi-bin\/cvename.cgi?name=CVE-2019-12520\">CVE-2019-12520<\/a><\/noindex> \u2014 a trav\u00e9s de la manipulaci\u00f3n de los datos del nombre de usuario en la URL, se puede lograr que se almacene en cach\u00e9 contenido ficticio para una p\u00e1gina espec\u00edfica, lo cual, por ejemplo, puede utilizarse para ejecutar su propio c\u00f3digo JavaScript en el contexto de otros sitios.\n<\/ul>\n<p><noindex><a rel=\"nofollow\" name=\"link\"><\/a><\/noindex><\/p>\n<p>Fuente: <a \ncontent=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=52765\">opennet.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0420\u0430\u0441\u043a\u0440\u044b\u0442\u044b \u0441\u0432\u0435\u0434\u0435\u043d\u0438\u044f \u043e\u0431 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044f\u0445 \u0432 \u043f\u0440\u043e\u043a\u0441\u0438-\u0441\u0435\u0440\u0432\u0435\u0440\u0435 Squid, \u043a\u043e\u0442\u043e\u0440\u044b\u0435 \u0431\u0435\u0437 \u043b\u0438\u0448\u043d\u0435\u0439 \u043e\u0433\u043b\u0430\u0441\u043a\u0438 \u0431\u044b\u043b\u0438 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u044b \u0435\u0449\u0451 \u0432 \u043f\u0440\u043e\u0448\u043b\u043e\u043c \u0433\u043e\u0434\u0443 \u0432 \u0432\u044b\u043f\u0443\u0441\u043a\u0435 Squid 4.8. \u041f\u0440\u043e\u0431\u043b\u0435\u043c\u044b \u043f\u0440\u0438\u0441\u0443\u0442\u0441\u0442\u0432\u0443\u044e\u0442 \u0432 \u043a\u043e\u0434\u0435 \u043e\u0431\u0440\u0430\u0431\u043e\u0442\u043a\u0438 \u0431\u043b\u043e\u043a\u0430 &#171;@&#187; \u0432 \u043d\u0430\u0447\u0430\u043b\u0435 URL (&#171;user@host&#187;) \u0438 \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0442 \u043e\u0431\u043e\u0439\u0442\u0438 \u043f\u0440\u0430\u0432\u0438\u043b\u0430 \u043e\u0433\u0440\u0430\u043d\u0438\u0447\u0435\u043d\u0438\u044f \u0434\u043e\u0441\u0442\u0443\u043f\u0430, \u043e\u0442\u0440\u0430\u0432\u0438\u0442\u044c \u0441\u043e\u0434\u0435\u0440\u0436\u0438\u043c\u043e\u0435 \u043a\u044d\u0448\u0430 \u0438 \u0441\u043e\u0432\u0435\u0440\u0448\u0430\u0442\u044c \u0430\u0442\u0430\u043a\u0443 \u0441 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435\u043c \u043c\u0435\u0436\u0441\u0430\u0439\u0442\u043e\u0432\u043e\u0433\u043e \u0441\u043a\u0440\u0438\u043f\u0442\u0438\u043d\u0433\u0430. CVE-2019-12524 &#8212; \u043a\u043b\u0438\u0435\u043d\u0442 \u043f\u0440\u0438 \u043f\u043e\u043c\u043e\u0449\u0438 \u0441\u043f\u0435\u0446\u0438\u0430\u043b\u044c\u043d\u043e \u043e\u0444\u043e\u0440\u043c\u043b\u0435\u043d\u043d\u043e\u0433\u043e [&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-78493","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.2 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u0420\u0430\u0441\u043a\u0440\u044b\u0442\u044b \u0441\u0432\u0435\u0434\u0435\u043d\u0438\u044f \u043e\u0431 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044f\u0445 \u0432 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