{"id":121855,"date":"2025-02-12T02:22:04","date_gmt":"2025-02-12T00:22:04","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/obnovlenie-openssl-3-4-1-s-ustraneniem-uyazvimostej"},"modified":"2025-02-12T02:22:04","modified_gmt":"2025-02-12T00:22:04","slug":"obnovlenie-openssl-3-4-1-s-ustraneniem-uyazvimostej","status":"publish","type":"post","link":"https:\/\/prohoster.info\/it\/blog\/novosti-interneta\/obnovlenie-openssl-3-4-1-s-ustraneniem-uyazvimostej","title":{"rendered":"Aggiornamento OpenSSL 3.4.1 con correzione delle vulnerabilit\u00e0","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Sono disponibili aggiornamenti correttivi per le versioni della libreria crittografica OpenSSL 3.0.16, 3.1.8, 3.2.4, 3.3.3 e 3.4.1. Nelle versioni 3.2.4, 3.3.3 e 3.4.1 \u00e8 stata risolta una vulnerabilit\u00e0 (CVE-2024-12797) valutata con un alto livello di gravit\u00e0. La vulnerabilit\u00e0 consente di organizzare un attacco MITM sulle connessioni TLS e DTLS. Il problema si manifesta solo nei sistemi che utilizzano chiavi pubbliche RPK (Raw Public Key, RFC 7250) per l'autenticazione dei client. Per impostazione predefinita, il supporto per RPK \u00e8 disabilitato sul lato client e server<\/a>. <\/p>\n

La vulnerabilit\u00e0 \u00e8 causata dal fatto che OpenSSL non restituisce al client informazioni sul fallimento dell'autenticazione del server durante l'instaurazione di una connessione utilizzando la modalit\u00e0 di verifica SSL_VERIFY_PEER, poich\u00e9 il processo di negoziazione della connessione non viene interrotto correttamente. Un attaccante pu\u00f2 effettuare un attacco MITM e reindirizzare il traffico sul proprio host invece che sul server di destinazione, e il client non ricever\u00e0 informazioni che un server<\/a> non \u00e8 autenticato. Il problema si manifesta a partire dalla linea OpenSSL 3.2, in cui \u00e8 stata introdotta la possibilit\u00e0 di utilizzare RPK invece di certificati X.509. <\/p>\n

Inoltre, negli aggiornamenti di OpenSSL \u00e8 stata corretta una vulnerabilit\u00e0 CVE-2024-13176, che consente di eseguire un attacco attraverso canali esterni per ricostruire la chiave privata ECDSA tramite l'analisi dei ritardi che si verificano durante la generazione di una firma digitale. La vulnerabilit\u00e0 consiste nel fatto che per alcuni tipi di curve ellittiche, ad esempio, NIST P-521, \u00e8 possibile estrarre dalla massa generale i calcoli con bit alti zero del valore invertito del vettore di inizializzazione (nonce), il cui tempo di elaborazione differisce di 300 nanosecondi. <\/p>\n

Nel caso di ECDSA, la determinazione anche di pochi bit con informazioni sul vettore di inizializzazione \u00e8 sufficiente per eseguire un attacco di ripristino sequenziale dell'intera chiave privata. Per riuscire a condurre l'attacco, l'aggressore deve avere accesso a un sistema locale in cui viene eseguita l'applicazione che genera firme digitali, oppure deve avere accesso a rete ad alta velocit\u00e0 con ritardi molto ridotti. L'attaccante deve anche essere in grado di analizzare con grande precisione il tempo di generazione di un numero elevato di firme digitali create su dati a lui noti.
\n
Fonte: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u0414\u043e\u0441\u0442\u0443\u043f\u043d\u044b \u043a\u043e\u0440\u0440\u0435\u043a\u0442\u0438\u0440\u0443\u044e\u0449\u0438\u0435 \u0432\u044b\u043f\u0443\u0441\u043a\u0438 \u043a\u0440\u0438\u043f\u0442\u043e\u0433\u0440\u0430\u0444\u0438\u0447\u0435\u0441\u043a\u043e\u0439 \u0431\u0438\u0431\u043b\u0438\u043e\u0442\u0435\u043a\u0438 OpenSSL 3.0.16, 3.1.8, 3.2.4, 3.3.3 \u0438 3.4.1. \u0412 \u0432\u0435\u0440\u0441\u0438\u044f\u0445 3.2.4, 3.3.3 \u0438 3.4.1 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0430 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c (CVE-2024-12797), \u043a\u043e\u0442\u043e\u0440\u043e\u0439 \u043f\u0440\u0438\u0441\u0432\u043e\u0435\u043d \u0432\u044b\u0441\u043e\u043a\u0438\u0439 \u0443\u0440\u043e\u0432\u0435\u043d\u044c \u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438. \u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u0435\u0442 \u043e\u0440\u0433\u0430\u043d\u0438\u0437\u043e\u0432\u0430\u0442\u044c MITM-\u0430\u0442\u0430\u043a\u0443 \u043d\u0430 \u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u044f TLS \u0438 DTLS. \u041f\u0440\u043e\u0431\u043b\u0435\u043c\u0430 \u043f\u0440\u043e\u044f\u0432\u043b\u044f\u0435\u0442\u0441\u044f \u0442\u043e\u043b\u044c\u043a\u043e \u0432 \u0441\u0438\u0441\u0442\u0435\u043c\u0430\u0445, \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u044e\u0449\u0438\u0445 \u0434\u043b\u044f \u0430\u0443\u0442\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u0438 \u043a\u043b\u0438\u0435\u043d\u0442\u043e\u0432 \u043e\u0442\u043a\u0440\u044b\u0442\u044b\u0435 \u043a\u043b\u044e\u0447\u0438 RPK (Raw Public Key, RFC 7250). \u041f\u043e \u0443\u043c\u043e\u043b\u0447\u0430\u043d\u0438\u044e \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u043a\u0430 […]<\/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-121855","post","type-post","status-publish","format-standard","hentry","category-novosti-interneta"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\n","aioseo_head_json":{"title":"\ud83e\udd47Aggiornamento OpenSSL 3.4.1 con correzioni di vulnerabilit\u00e0 | ProHoster","description":"Sono disponibili aggiornamenti correttivi per la libreria crittografica OpenSSL 3.0.16, 3.1.8, 3.2.4, 3.3.3 e 3.4.1. Nelle versioni 3.2.4, 3.3.3 e 3.4.1 \u00e8 stata risolta una vulnerabilit\u00e0 (CVE-2024-12797) classificata come ad alto rischio. Questa vulnerabilit\u00e0 consente di effettuare un attacco MITM sulle connessioni TLS e DTLS. Il problema si manifesta solo nei sistemi che utilizzano per l'autenticazione dei client le chiavi pubbliche RPK (Raw Public Key, RFC 7250). Per impostazione predefinita, il supporto","canonical_url":"https:\/\/prohoster.info\/it\/blog\/novosti-interneta\/obnovlenie-openssl-3-4-1-s-ustraneniem-uyazvimostej","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":null,"og:locale":"it_IT","og:site_name":"ProHoster | \u041a\u0443\u043f\u0438\u0442\u044c \u043d\u0430\u0434\u0435\u0436\u043d\u044b\u0439 \u0445\u043e\u0441\u0442\u0438\u043d\u0433 \u0434\u043b\u044f \u0441\u0430\u0439\u0442\u043e\u0432 \u0441 \u0437\u0430\u0449\u0438\u0442\u043e\u0439 \u043e\u0442 DDoS, VPS VDS \u0441\u0435\u0440\u0432\u0435\u0440\u044b","og:type":"article","og:title":"\ud83e\udd47\u041e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u0435 OpenSSL 3.4.1 \u0441 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u0435\u043c \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0435\u0439 | ProHoster","og:description":"\u0414\u043e\u0441\u0442\u0443\u043f\u043d\u044b \u043a\u043e\u0440\u0440\u0435\u043a\u0442\u0438\u0440\u0443\u044e\u0449\u0438\u0435 \u0432\u044b\u043f\u0443\u0441\u043a\u0438 \u043a\u0440\u0438\u043f\u0442\u043e\u0433\u0440\u0430\u0444\u0438\u0447\u0435\u0441\u043a\u043e\u0439 \u0431\u0438\u0431\u043b\u0438\u043e\u0442\u0435\u043a\u0438 OpenSSL 3.0.16, 3.1.8, 3.2.4, 3.3.3 \u0438 3.4.1. \u0412 \u0432\u0435\u0440\u0441\u0438\u044f\u0445 3.2.4, 3.3.3 \u0438 3.4.1 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0430 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c (CVE-2024-12797), \u043a\u043e\u0442\u043e\u0440\u043e\u0439 \u043f\u0440\u0438\u0441\u0432\u043e\u0435\u043d \u0432\u044b\u0441\u043e\u043a\u0438\u0439 \u0443\u0440\u043e\u0432\u0435\u043d\u044c \u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438. \u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u0435\u0442 \u043e\u0440\u0433\u0430\u043d\u0438\u0437\u043e\u0432\u0430\u0442\u044c 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\u043f\u043e\u0434\u0434\u0435\u0440\u0436\u043a\u0430","og:url":"https:\/\/prohoster.info\/it\/blog\/novosti-interneta\/obnovlenie-openssl-3-4-1-s-ustraneniem-uyazvimostej","og:image":"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg","og:image:secure_url":"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg","og:image:width":350,"og:image:height":350,"article:published_time":"2025-02-12T00:22:04+00:00","article:modified_time":"2025-02-12T00:22:04+00:00","article:publisher":"https:\/\/www.facebook.com\/prohoster","article:author":"https:\/\/www.facebook.com\/prohoster"},"aioseo_meta_data":{"post_id":"121855","title":null,"description":null,"keywords":null,"keyphrases":null,"primary_term":null,"canonical_url":null,"og_title":null,"og_description":null,"og_object_type":"default","og_image_type":"default","og_image_url":null,"og_image_width":null,"og_image_height":null,"og_image_custom_url":null,"og_image_custom_fields":null,"og_video":null,"og_custom_url":null,"og_article_section":null,"og_article_tags":null,"twitter_use_og":false,"twitter_card":"default","twitter_image_type":"default","twitter_image_url":null,"twitter_image_custom_url":null,"twitter_image_custom_fields":null,"twitter_title":null,"twitter_description":null,"schema":{"blockGraphs":[],"customGraphs":[],"default":{"data":{"Article":[],"Course":[],"Dataset":[],"FAQPage":[],"Movie":[],"Person":[],"Product":[],"ProductReview":[],"Car":[],"Recipe":[],"Service":[],"SoftwareApplication":[],"WebPage":[]},"graphName":"","isEnabled":true},"graphs":[]},"schema_type":"default","schema_type_options":null,"pillar_content":false,"robots_default":true,"robots_noindex":false,"robots_noarchive":false,"robots_nosnippet":false,"robots_nofollow":false,"robots_noimageindex":false,"robots_noodp":false,"robots_notranslate":false,"robots_max_snippet":null,"robots_max_videopreview":null,"robots_max_imagepreview":"large","priority":null,"frequency":null,"local_seo":null,"seo_analyzer_scan_date":"2026-02-22 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