{"id":101033,"date":"2021-08-18T10:22:37","date_gmt":"2021-08-18T08:22:37","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/uyazvimosti-v-realtek-sdk-priveli-k-problemam-v-ustrojstvah-65-proizvoditelej"},"modified":"2021-08-18T10:22:37","modified_gmt":"2021-08-18T08:22:37","slug":"uyazvimosti-v-realtek-sdk-priveli-k-problemam-v-ustrojstvah-65-proizvoditelej","status":"publish","type":"post","link":"https:\/\/prohoster.info\/it\/blog\/novosti-interneta\/uyazvimosti-v-realtek-sdk-priveli-k-problemam-v-ustrojstvah-65-proizvoditelej","title":{"rendered":"Le vulnerabilit\u00e0 nel Realtek SDK hanno causato problemi in dispositivi di 65 produttori","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Sono state identificate quattro vulnerabilit\u00e0 nei componenti del Realtek SDK, utilizzato da vari produttori di dispositivi wireless nelle loro firmware, che consentono a un attaccante non autenticato di eseguire codice da remoto su un dispositivo con privilegi elevati. Secondo stime preliminari, i problemi interessano almeno 200 modelli di dispositivi di 65 fornitori diversi, inclusi vari modelli di router wireless di Asus, A-Link, Beeline, Belkin, Buffalo, D-Link, Edison, Huawei, LG, Logitec, MT-Link, Netgear, Realtek, Smartlink, UPVEL, ZTE e Zyxel.      <\/p>\n<p>Il problema riguarda diverse classi di dispositivi wireless basati su SoC RTL8xxx, dai router wireless e amplificatori Wi-Fi, alle telecamere IP e ai dispositivi smart per il controllo dell'illuminazione. Negli apparecchi basati su chip RTL8xxx viene utilizzata un'architettura che prevede l'installazione di due SoC: il primo ospita il firmware del produttore basato su Linux, mentre il secondo esegue un ambiente Linux semplificato dedicato alle funzioni di access point. Il cuore del secondo ambiente si basa su componenti standard forniti da Realtek nel SDK. Questi componenti gestiscono, tra l'altro, i dati provenienti dalle richieste esterne inviate.      <\/p>\n<p>Le vulnerabilit\u00e0 riguardano i prodotti che utilizzano Realtek SDK v2.x, Realtek \u2018Jungle\u2019 SDK v3.0-3.4 e Realtek \u2018Luna\u2019 SDK fino alla versione 1.3.2. Una correzione \u00e8 gi\u00e0 stata rilasciata nell'aggiornamento Realtek \u2018Luna\u2019 SDK 1.3.2a, e sono in preparazione delle patch per Realtek \u2018Jungle\u2019 SDK. Non \u00e8 previsto il rilascio di correzioni per Realtek SDK 2.x, poich\u00e9 il supporto per questa versione \u00e8 gi\u00e0 terminato. Per tutte le vulnerabilit\u00e0 sono forniti prototipi funzionanti di exploit, che consentono l'esecuzione di codice arbitrario sul dispositivo.      <\/p>\n<p>Le vulnerabilit\u00e0 identificate (per le prime due \u00e8 stato assegnato un livello di gravit\u00e0 di 8.1, mentre per le altre \u2014 9.8):  <\/p>\n<ul>\n<li class=\"l\"> CVE-2021-35392 \u2014 overflow di buffer nei processi mini_upnpd e wscd, che implementano la funzionalit\u00e0 \u2018WiFi Simple Config\u2019 (mini_upnpd gestisce i pacchetti SSDP, mentre wscd supporta SSDP e gestisce le richieste UPnP sulla base del protocollo HTTP). Un attaccante pu\u00f2 ottenere l'esecuzione di codice arbitrario inviando richieste UPnP \u2018SUBSCRIBE\u2019 appositamente formattate con un valore eccessivo per il numero di porta nel campo \u2018Callback\u2019. SUBSCRIBE \/upnp\/event\/WFAWLANConfig1 HTTP\/1.1 Host: 192.168.100.254:52881 Callback:  NT: upnp:event\n<li class=\"l\"> CVE-2021-35393 &#8212; vulnerabilit\u00e0 nei gestori &#171;WiFi Simple Config&#187;, che si manifesta durante l'utilizzo del protocollo SSDP (utilizza UDP e un formato di richieste simile a HTTP). Il problema \u00e8 causato dall'uso di un buffer fisso di 512 byte nel trattamento del parametro &#171;ST:upnp&#187; nei messaggi M-SEARCH inviati dai client per determinare la presenza di servizi in rete.\n<li class=\"l\"> CVE-2021-35394 &#8212; vulnerabilit\u00e0 nel processo MP Daemon, responsabile dell'esecuzione delle operazioni di diagnostica (ping, traceroute). Il problema consente di inserire comandi propri a causa di un'insufficiente verifica degli argomenti durante l'esecuzione di utility esterne.\n<li class=\"l\"> CVE-2021-35395 &#8212; serie di vulnerabilit\u00e0 nelle interfacce web basate su server http \/bin\/webs e \/bin\/boa. In entrambi i casi <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/it\/server\/dts-gdansk\/\"   title=\"server\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"4524\">server<\/a> \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u044b \u0442\u0438\u043f\u043e\u0432\u044b\u0435 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438, \u0432\u044b\u0437\u0432\u0430\u043d\u043d\u044b\u0435 \u043e\u0442\u0441\u0443\u0442\u0441\u0442\u0432\u0438\u0435\u043c \u043f\u0440\u043e\u0432\u0435\u0440\u043a\u0438 \u0430\u0440\u0433\u0443\u043c\u0435\u043d\u0442\u043e\u0432 \u043f\u0435\u0440\u0435\u0434 \u0437\u0430\u043f\u0443\u0441\u043a\u043e\u043c \u0432\u043d\u0435\u0448\u043d\u0438\u0445 \u0443\u0442\u0438\u043b\u0438\u0442 \u0444\u0443\u043d\u043a\u0446\u0438\u0435\u0439 system(). \u041e\u0442\u043b\u0438\u0447\u0438\u044f \u0441\u0432\u043e\u0434\u044f\u0442\u0441\u044f \u0442\u043e\u043b\u044c\u043a\u043e \u043a \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u044e \u0434\u043b\u044f \u0430\u0442\u0430\u043a\u0438 \u0440\u0430\u0437\u043d\u044b\u0445 API. \u041e\u0431\u0430 \u043e\u0431\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a\u0430 \u043d\u0435 \u0432\u043a\u043b\u044e\u0447\u0430\u043b\u0438 \u0437\u0430\u0449\u0438\u0442\u0443 \u043e\u0442 \u0430\u0442\u0430\u043a\u0438 CSRF \u0438 \u0442\u0435\u0445\u043d\u0438\u043a\u0438 &#171;DNS rebinding&#187;, \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0435\u0439 \u043e\u0440\u0433\u0430\u043d\u0438\u0437\u043e\u0432\u0430\u0442\u044c \u043e\u0442\u043f\u0440\u0430\u0432\u043a\u0443 \u0437\u0430\u043f\u0440\u043e\u0441\u043e\u0432 \u0438\u0437 \u0432\u043d\u0435\u0448\u043d\u0435\u0439 \u0441\u0435\u0442\u0438 \u043f\u0440\u0438 \u043e\u0433\u0440\u0430\u043d\u0438\u0447\u0435\u043d\u0438\u0438 \u0434\u043e\u0441\u0442\u0443\u043f\u0430 \u043a \u0438\u043d\u0442\u0435\u0440\u0444\u0435\u0439\u0441\u0443 \u0442\u043e\u043b\u044c\u043a\u043e \u0434\u043b\u044f \u0432\u043d\u0443\u0442\u0440\u0435\u043d\u043d\u0435\u0439 \u0441\u0435\u0442\u0438. \u0412 \u043f\u0440\u043e\u0446\u0435\u0441\u0441\u0430\u0445 \u0442\u0430\u043a\u0436\u0435 \u043f\u043e \u0443\u043c\u043e\u043b\u0447\u0430\u043d\u0438\u044e \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043b\u0430\u0441\u044c \u043f\u0440\u0435\u0434\u043e\u043f\u0440\u0435\u0434\u0435\u043b\u0451\u043d\u043d\u0430\u044f \u0443\u0447\u0451\u0442\u043d\u0430\u044f \u0437\u0430\u043f\u0438\u0441\u044c supervisor\/supervisor.  \u041a\u0440\u043e\u043c\u0435 \u0442\u043e\u0433\u043e, \u0432 \u043e\u0431\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a\u0430\u0445 \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u043e \u043d\u0435\u0441\u043a\u043e\u043b\u044c\u043a\u043e \u043f\u0435\u0440\u0435\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u0439 \u0441\u0442\u0435\u043a\u0430, \u043f\u0440\u043e\u044f\u0432\u043b\u044f\u044e\u0449\u0438\u0445\u0441\u044f \u043f\u0440\u0438 \u043e\u0442\u043f\u0440\u0430\u0432\u043a\u0435 \u0430\u0440\u0433\u0443\u043c\u0435\u043d\u0442\u043e\u0432 \u0441\u043b\u0438\u0448\u043a\u043e\u043c \u0431\u043e\u043b\u044c\u0448\u043e\u0433\u043e \u0440\u0430\u0437\u043c\u0435\u0440\u0430.       POST \/goform\/formWsc HTTP\/1.1     Host: 192.168.100.254     Content-Length: 129     Content-Type: application\/x-www-form-urlencoded        submit-url=%2Fwlwps.asp&#038;resetUnCfg=0&#038;peerPin=12345678;ifconfig&gt;\/tmp\/1;&#038;setPIN=Start+PIN&#038;configVxd=off&#038;resetRptUnCfg=0&#038;peerRptPin=\n<li class=\"l\"> Si segnala inoltre la scoperta di ulteriori vulnerabilit\u00e0 nel processo UDPServer. Si \u00e8 scoperto che uno dei problemi era gi\u00e0 stato individuato da altri ricercatori nel 2015, ma non era stato completamente risolto. Il problema \u00e8 causato dalla mancanza di un'adeguata verifica degli argomenti passati alla funzione system() e pu\u00f2 essere sfruttato inviando una stringa del tipo &#8216;orf;ls&#8217; sulla porta di rete 9034. Inoltre, nel UDPServer \u00e8 stata rilevata una vulnerabilit\u00e0 di buffer overflow a causa dell'uso non sicuro della funzione sprintf, che potrebbe anche essere utilizzata per effettuare attacchi.  <\/ul>\n<p>Fonte: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=55652\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0412 \u043a\u043e\u043c\u043f\u043e\u043d\u0435\u043d\u0442\u0430\u0445 Realtek SDK, \u043a\u043e\u0442\u043e\u0440\u044b\u0439 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u0435\u0442\u0441\u044f \u0440\u0430\u0437\u043b\u0438\u0447\u043d\u044b\u043c\u0438 \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u044f\u043c\u0438 \u0431\u0435\u0441\u043f\u0440\u043e\u0432\u043e\u0434\u043d\u044b\u0445 \u0443\u0441\u0442\u0440\u043e\u0439\u0441\u0442\u0432 \u0432 \u0441\u0432\u043e\u0438\u0445 \u043f\u0440\u043e\u0448\u0438\u0432\u043a\u0430\u0445, \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u044b \u0447\u0435\u0442\u044b\u0440\u0435 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438, \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0438\u0435 \u043d\u0435\u0430\u0443\u0442\u0435\u043d\u0442\u0438\u0444\u0438\u0446\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u043e\u043c\u0443 \u0430\u0442\u0430\u043a\u0443\u044e\u0449\u0435\u043c\u0443 \u0443\u0434\u0430\u043b\u0451\u043d\u043d\u043e \u0432\u044b\u043f\u043e\u043b\u043d\u0438\u0442\u044c \u043a\u043e\u0434 \u043d\u0430 \u0443\u0441\u0442\u0440\u043e\u0439\u0441\u0442\u0432\u0435 \u0441 \u043f\u043e\u0432\u044b\u0448\u0435\u043d\u043d\u044b\u043c\u0438 \u043f\u0440\u0438\u0432\u0438\u043b\u0435\u0433\u0438\u044f\u043c\u0438. \u041f\u043e \u043f\u0440\u0435\u0434\u0432\u0430\u0440\u0438\u0442\u0435\u043b\u044c\u043d\u043e\u0439 \u043e\u0446\u0435\u043d\u043a\u0435, \u043f\u0440\u043e\u0431\u043b\u0435\u043c\u044b \u0437\u0430\u0442\u0440\u0430\u0433\u0438\u0432\u0430\u044e\u0442 \u043a\u0430\u043a \u043c\u0438\u043d\u0438\u043c\u0443\u043c 200 \u043c\u043e\u0434\u0435\u043b\u0435\u0439 \u0443\u0441\u0442\u0440\u043e\u0439\u0441\u0442\u0432 \u043e\u0442 65 \u0440\u0430\u0437\u043b\u0438\u0447\u043d\u044b\u0445 \u043f\u043e\u0441\u0442\u0430\u0432\u0449\u0438\u043a\u043e\u0432, \u0432\u043a\u043b\u044e\u0447\u0430\u044f \u0440\u0430\u0437\u043b\u0438\u0447\u043d\u044b\u0435 \u043c\u043e\u0434\u0435\u043b\u0438 \u0431\u0435\u0441\u043f\u0440\u043e\u0432\u043e\u0434\u043d\u044b\u0445 \u043c\u0430\u0440\u0448\u0440\u0443\u0442\u0438\u0437\u0430\u0442\u043e\u0440\u043e\u0432 Asus, A-Link, Beeline, Belkin, Buffalo, D-Link, Edison, Huawei, LG, [&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-101033","post","type-post","status-publish","format-standard","hentry","category-novosti-interneta"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.10 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u0412 \u043a\u043e\u043c\u043f\u043e\u043d\u0435\u043d\u0442\u0430\u0445 Realtek SDK, \u043a\u043e\u0442\u043e\u0440\u044b\u0439 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u0435\u0442\u0441\u044f \u0440\u0430\u0437\u043b\u0438\u0447\u043d\u044b\u043c\u0438 \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u044f\u043c\u0438 \u0431\u0435\u0441\u043f\u0440\u043e\u0432\u043e\u0434\u043d\u044b\u0445 \u0443\u0441\u0442\u0440\u043e\u0439\u0441\u0442\u0432 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href=\"https:\/\/prohoster.info\/it\/blog\/novosti-interneta\/uyazvimosti-v-realtek-sdk-priveli-k-problemam-v-ustrojstvah-65-proizvoditelej\" \/>\n\t<meta name=\"generator\" content=\"All in One SEO (AIOSEO) 4.9.10\" \/>\n\t\t<meta property=\"og:locale\" content=\"it_IT\" \/>\n\t\t<meta property=\"og:site_name\" content=\"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\" \/>\n\t\t<meta property=\"og:type\" content=\"article\" \/>\n\t\t<meta property=\"og:title\" content=\"\ud83e\udd47\u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438 \u0432 Realtek SDK \u043f\u0440\u0438\u0432\u0435\u043b\u0438 \u043a \u043f\u0440\u043e\u0431\u043b\u0435\u043c\u0430\u043c \u0432 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\u0443\u0441\u0442\u0440\u043e\u0439\u0441\u0442\u0432 \u043e\u0442 65 \u0440\u0430\u0437\u043b\u0438\u0447\u043d\u044b\u0445 \u043f\u043e\u0441\u0442\u0430\u0432\u0449\u0438\u043a\u043e\u0432, \u0432\u043a\u043b\u044e\u0447\u0430\u044f \u0440\u0430\u0437\u043b\u0438\u0447\u043d\u044b\u0435 \u043c\u043e\u0434\u0435\u043b\u0438 \u0431\u0435\u0441\u043f\u0440\u043e\u0432\u043e\u0434\u043d\u044b\u0445 \u043c\u0430\u0440\u0448\u0440\u0443\u0442\u0438\u0437\u0430\u0442\u043e\u0440\u043e\u0432 Asus, A-Link, Beeline, Belkin, Buffalo, D-Link, Edison, Huawei, LG,\" \/>\n\t\t<meta property=\"og:url\" content=\"https:\/\/prohoster.info\/it\/blog\/novosti-interneta\/uyazvimosti-v-realtek-sdk-priveli-k-problemam-v-ustrojstvah-65-proizvoditelej\" \/>\n\t\t<meta property=\"og:image\" content=\"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg\" \/>\n\t\t<meta property=\"og:image:secure_url\" content=\"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg\" \/>\n\t\t<meta property=\"og:image:width\" content=\"350\" \/>\n\t\t<meta property=\"og:image:height\" content=\"350\" \/>\n\t\t<meta property=\"article:published_time\" content=\"2021-08-18T08:22:37+00:00\" \/>\n\t\t<meta property=\"article:modified_time\" content=\"2021-08-18T08:22:37+00:00\" \/>\n\t\t<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/prohoster\" \/>\n\t\t<meta property=\"article:author\" content=\"https:\/\/www.facebook.com\/prohoster\" \/>\n\t\t<!-- All in One SEO -->\n\n","aioseo_head_json":{"title":"\ud83e\udd47Le vulnerabilit\u00e0 nel Realtek SDK hanno causato problemi nei dispositivi di 65 produttori | ProHoster","description":"Nei componenti del Realtek SDK, utilizzato da vari produttori di dispositivi wireless nei loro firmware, sono state riscontrate quattro vulnerabilit\u00e0 che consentono a un attaccante non autenticato di eseguire codice in remoto su un dispositivo con privilegi elevati. Secondo una valutazione preliminare, i problemi riguardano almeno 200 modelli di dispositivi di 65 diversi fornitori, inclusi diversi modelli di router wireless di Asus, A-Link, Beeline, Belkin, Buffalo, D-Link, Edison, Huawei, LG,","canonical_url":"https:\/\/prohoster.info\/it\/blog\/novosti-interneta\/uyazvimosti-v-realtek-sdk-priveli-k-problemam-v-ustrojstvah-65-proizvoditelej","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\u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438 \u0432 Realtek SDK 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