{"id":91158,"date":"2020-08-09T01:43:01","date_gmt":"2020-08-08T23:43:01","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/reliz-http-servera-apache-2-4-46-s-ustraneniem-uyazvimostej"},"modified":"2020-08-09T01:43:01","modified_gmt":"2020-08-08T23:43:01","slug":"reliz-http-servera-apache-2-4-46-s-ustraneniem-uyazvimostej","status":"publish","type":"post","link":"https:\/\/prohoster.info\/it\/blog\/news\/reliz-http-servera-apache-2-4-46-s-ustraneniem-uyazvimostej","title":{"rendered":"Rilascio del server HTTP Apache 2.4.46 con correzioni per vulnerabilit\u00e0.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p><noindex><a rel=\"nofollow\" href=\"https:\/\/www.mail-archive.com\/announce@httpd.apache.org\/msg00146.html\">Pubblicato<\/a><\/noindex> Rilascio del server HTTP Apache 2.4.46 (le versioni 2.4.44 e 2.4.45 sono state saltate), che presenta <noindex><a rel=\"nofollow\" href=\"http:\/\/www.apache.org\/dist\/httpd\/CHANGES_2.4.46\">17 modifiche<\/a><\/noindex> e risolve <noindex><a rel=\"nofollow\" href=\"http:\/\/httpd.apache.org\/security\/vulnerabilities_24.html\">3 vulnerabilit\u00e0<\/a><\/noindex>:<\/p>\n<ul>\n<li class=\"l\"> <noindex><a rel=\"nofollow\" href=\"https:\/\/www.mail-archive.com\/announce@httpd.apache.org\/msg00147.html\">CVE-2020-11984<\/a><\/noindex> \u2014 overflow del buffer nel modulo mod_proxy_uwsgi, che pu\u00f2 portare a una fuga di informazioni o all'esecuzione di codice sul server inviando una richiesta appositamente formattata. Sfruttare la vulnerabilit\u00e0 avviene attraverso l'invio di un'intestazione HTTP molto lunga. Per proteggere, \u00e8 stata aggiunta una limitazione delle intestazioni pi\u00f9 lunghe di 16K (un limite indicato nella specifica del protocollo).\n<li class=\"l\"> <noindex><a rel=\"nofollow\" href=\"https:\/\/www.mail-archive.com\/announce@httpd.apache.org\/msg00149.html\">CVE-2020-11993<\/a><\/noindex> \u2014 vulnerabilit\u00e0 nel modulo mod_http2, che consente di causare un crash del processo inviando una richiesta con un'intestazione HTTP\/2 appositamente formattata. Il problema si verifica quando la modalit\u00e0 di debug o tracciamento \u00e8 attivata nel modulo mod_http2 e si manifesta in un danneggiamento della memoria a causa di una condizione di corsa durante la registrazione delle informazioni. Il problema non si verifica impostando il livello di log a 'info'.\n<li class=\"l\"> <noindex><a rel=\"nofollow\" href=\"https:\/\/www.mail-archive.com\/announce@httpd.apache.org\/msg00150.html\">CVE-2020-9490<\/a><\/noindex> \u2014 vulnerabilit\u00e0 nel modulo mod_http2, che consente di causare un crash del processo inviando tramite HTTP\/2 una richiesta con un valore dell'intestazione 'Cache-Digest' appositamente formattato (il crash avviene durante il tentativo di eseguire un'operazione HTTP\/2 PUSH per la risorsa). Per bloccare la vulnerabilit\u00e0, \u00e8 possibile utilizzare l'impostazione 'H2Push off'.\n<li class=\"l\"> <noindex><a rel=\"nofollow\" href=\"https:\/\/www.mail-archive.com\/announce@httpd.apache.org\/msg00148.html\">CVE-2020-11985<\/a><\/noindex> \u2014 vulnerabilit\u00e0 mod_remoteip, che consente di impersonare indirizzi IP durante il proxy, utilizzando mod_remoteip e mod_rewrite. Il problema si verifica solo per le versioni dalla 2.4.1 alla 2.4.23.\n<\/ul>\n<p>Le modifiche pi\u00f9 significative non correlate alla sicurezza: <\/p>\n<ul>\n<li class=\"l\"> \u00c8 stata rimossa dal mod_http2 la supporto per la bozza della specifica <noindex><a rel=\"nofollow\" href=\"https:\/\/datatracker.ietf.org\/doc\/draft-kazuho-h2-cache-digest\/\">kazuho-h2-cache-digest<\/a><\/noindex>, il cui sviluppo \u00e8 stato interrotto.\n<li class=\"l\"> Il comportamento della direttiva 'LimitRequestFields' in mod_http2 \u00e8 stato modificato; specificare un valore di 0 ora disattiva il limite.\n<li class=\"l\"> Nel mod_http2 \u00e8 stato implementato il trattamento delle connessioni principali e secondarie (master\/secondary) e la marcatura dei metodi in base all'uso.\n<li class=\"l\"> In caso di ricezione di un'intestazione Last-Modified non valida dallo script FCGI\/CGI, questa intestazione ora viene rimossa, anzich\u00e9 sostituita con il tempo epoch (Unix epoch).\n<li class=\"l\"> Nel codice \u00e8 stata aggiunta la funzione ap_parse_strict_length() per un'analisi rigorosa della dimensione del contenuto.\n<li class=\"l\"> Nel mod_proxy_fcgi, ProxyFCGISetEnvIf \u00e8 stata implementata la rimozione delle variabili ambiente se l'espressione fornita restituisce False.\n<li class=\"l\"> \u00c8 stata risolta una condizione di competizione e un possibile crash di mod_ssl durante l'uso di un certificato cliente specificato tramite l'impostazione SSLProxyMachineCertificateFile.\n<li class=\"l\"> \u00c8 stata rimossa una perdita di memoria in mod_ssl.\n<li class=\"l\"> In mod_proxy_http2 \u00e8 stato garantito l'uso del parametro proxy '<noindex><a rel=\"nofollow\" href=\"https:\/\/httpd.apache.org\/docs\/2.4\/mod\/mod_proxy.html\">ping<\/a><\/noindex>' durante il controllo della funzionalit\u00e0 di una nuova connessione o di una connessione riutilizzata con il backend.\n<li class=\"l\"> Terminato il collegamento di httpd con l'opzione '-lsystemd' se mod_systemd \u00e8 attivato.\n<li class=\"l\"> Nel mod_proxy_http2 \u00e8 stata garantita l'osservanza dell'impostazione ProxyTimeout durante l'attesa di dati in arrivo tramite connessioni con il backend.\n<\/ul>\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=53517\">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 \u0440\u0435\u043b\u0438\u0437 HTTP-\u0441\u0435\u0440\u0432\u0435\u0440\u0430 Apache 2.4.46 (\u0432\u044b\u043f\u0443\u0441\u043a\u0438 2.4.44 \u0438 2.4.45 \u0431\u044b\u043b\u0438 \u043f\u0440\u043e\u043f\u0443\u0449\u0435\u043d\u044b), \u0432 \u043a\u043e\u0442\u043e\u0440\u043e\u043c \u043f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u043b\u0435\u043d\u043e 17 \u0438\u0437\u043c\u0435\u043d\u0435\u043d\u0438\u0439 \u0438 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u043e 3 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438: CVE-2020-11984 &#8212; \u043f\u0435\u0440\u0435\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u0435 \u0431\u0443\u0444\u0435\u0440\u0430 \u0432 \u043c\u043e\u0434\u0443\u043b\u0435 mod_proxy_uwsgi, \u043a\u043e\u0442\u043e\u0440\u043e\u044f \u043c\u043e\u0436\u0435\u0442 \u043f\u0440\u0438\u0432\u0435\u0441\u0442\u0438 \u043a \u0443\u0442\u0435\u0447\u043a\u0435 \u0438\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u0438 \u0438\u043b\u0438 \u0432\u044b\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u0438 \u043a\u043e\u0434\u0430 \u043d\u0430 \u0441\u0435\u0440\u0432\u0435\u0440\u0435 \u043f\u0440\u0438 \u043e\u0442\u043f\u0440\u0430\u0432\u043a\u0435 \u0441\u043f\u0435\u0446\u0438\u0430\u043b\u044c\u043d\u043e \u043e\u0444\u043e\u0440\u043c\u043b\u0435\u043d\u043d\u043e\u0433\u043e \u0437\u0430\u043f\u0440\u043e\u0441\u0430. \u042d\u043a\u0441\u043f\u043b\u0443\u0430\u0442\u0430\u0446\u0438\u044f \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438 \u043e\u0441\u0443\u0449\u0435\u0441\u0442\u0432\u043b\u044f\u0435\u0442\u0441\u044f \u0447\u0435\u0440\u0435\u0437 \u043f\u0435\u0440\u0435\u0434\u0430\u0447\u0443 \u043e\u0447\u0435\u043d\u044c \u0434\u043b\u0438\u043d\u043d\u043e\u0433\u043e HTTP-\u0437\u0430\u0433\u043e\u043b\u043e\u0432\u043a\u0430. \u0414\u043b\u044f \u0437\u0430\u0449\u0438\u0442\u044b \u0434\u043e\u0431\u0430\u0432\u043b\u0435\u043d\u0430 \u0431\u043b\u043e\u043a\u0438\u0440\u043e\u0432\u043a\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-91158","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.0.1 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u041e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d \u0440\u0435\u043b\u0438\u0437 HTTP-\u0441\u0435\u0440\u0432\u0435\u0440\u0430 Apache 2.4.46 (\u0432\u044b\u043f\u0443\u0441\u043a\u0438 2.4.44 \u0438 2.4.45 \u0431\u044b\u043b\u0438 \u043f\u0440\u043e\u043f\u0443\u0449\u0435\u043d\u044b), \u0432 \u043a\u043e\u0442\u043e\u0440\u043e\u043c.\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<meta name=\"author\" content=\"Yuri Gagarin\"\/>\n\t<link 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