{"id":110482,"date":"2023-10-05T03:11:34","date_gmt":"2023-10-05T01:11:34","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/v-exim-obnaruzhili-kriticheskie-uyazvimosti-pozvolyashhie-vypolnit-na-servere-proizvolnyj-kod"},"modified":"2023-10-05T03:11:34","modified_gmt":"2023-10-05T01:11:34","slug":"v-exim-obnaruzhili-kriticheskie-uyazvimosti-pozvolyashhie-vypolnit-na-servere-proizvolnyj-kod","status":"publish","type":"post","link":"https:\/\/prohoster.info\/it\/blog\/news\/v-exim-obnaruzhili-kriticheskie-uyazvimosti-pozvolyashhie-vypolnit-na-servere-proizvolnyj-kod","title":{"rendered":"Sono state trovate vulnerabilit\u00e0 critiche in Exim che permettono di eseguire codice arbitrario sul server","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

ZDI (Zero Day Initiative) ha pubblicato informazioni su tre vulnerabilit\u00e0 critiche trovate nel server di posta Exim, che consentono l'esecuzione di codice arbitrario nel contesto del processo del server che ha aperto la porta 25. Non \u00e8 necessaria l'autenticazione sul server per condurre l'attacco.<\/p>\n

    <\/p>\n
  1. CVE-2023-42115<\/a> \u2014 consente di registrare i propri dati al di fuori del buffer dedicato. \u00c8 causata da un errore di convalida dei dati in servizio SMTP.<\/li>\n

    <\/noindex> <\/p>\n

  2. CVE-2023-42116<\/a> \u2013 \u00e8 causata dalla copia di dati dall'utente in un buffer di dimensioni fisse senza controllare la dimensione necessaria.<\/li>\n
  3. CVE-2023-42117<\/a> \u2013 \u00e8 anche causata dalla mancanza di convalida dei dati in entrata sulla porta 25 del servizio SMTP.<\/li>\n<\/ol>\n

    Le vulnerabilit\u00e0 sono contrassegnate come 0-day, il che significa che non vengono corrette, sebbene ZDI affermi che gli sviluppatori di Exim siano stati avvertiti della loro esistenza da tempo. Potrebbe esserci una correzione nella versione 4.97 del server, ma non \u00e8 certo.<\/p>\n

    Attualmente, per proteggersi da queste vulnerabilit\u00e0, si consiglia di limitare l'accesso a SMTP sulla porta 25.<\/p>\n

    <\/p>\n

    UPD.<\/strong> Sembra che non sia cos\u00ec grave. Queste vulnerabilit\u00e0 sono di natura locale. Non funzionano se il server non utilizza l'autenticazione NTLM e EXTERNAL, non \u00e8 chiuso dietro un proxy, non utilizza server DNS potenzialmente pericolosi e non utilizza spf in acl. Ulteriori informazioni…<\/a><\/p>\n

    <\/noindex><\/p>\n

    Fonte: linux.org.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

    ZDI (Zero Day Initiative) \u043e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043b\u0438 \u0441\u0432\u0435\u0434\u0435\u043d\u0438\u044f \u043e \u0442\u0440\u0435\u0445 \u043d\u0430\u0439\u0434\u0435\u043d\u043d\u044b\u0445 \u043a\u0440\u0438\u0442\u0438\u0447\u0435\u0441\u043a\u0438\u0445 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044f\u0445 \u0432 \u043f\u043e\u0447\u0442\u043e\u0432\u043e\u043c \u0441\u0435\u0440\u0432\u0435\u0440\u0435 Exim, \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0438\u0445 \u0432\u044b\u043f\u043e\u043b\u043d\u0438\u0442\u044c \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u043b\u044c\u043d\u044b\u0439 \u043a\u043e\u0434 \u043e\u0442 \u0438\u043c\u0435\u043d\u0438 \u043f\u0440\u043e\u0446\u0435\u0441\u0441\u0430 \u0441\u0435\u0440\u0432\u0435\u0440\u0430, \u043e\u0442\u043a\u0440\u044b\u0432\u0448\u0435\u0433\u043e 25\u0439 \u043f\u043e\u0440\u0442. \u0414\u043b\u044f \u043f\u0440\u043e\u0432\u0435\u0434\u0435\u043d\u0438\u044f \u0430\u0442\u0430\u043a\u0438 \u0430\u0443\u0442\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u044f \u043d\u0430 \u0441\u0435\u0440\u0432\u0435\u0440\u0435 \u043d\u0435 \u0442\u0440\u0435\u0431\u0443\u0435\u0442\u0441\u044f. CVE-2023-42115 \u2014 \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u0435\u0442 \u0434\u043e\u0431\u0438\u0442\u044c\u0441\u044f \u0437\u0430\u043f\u0438\u0441\u0438 \u0441\u0432\u043e\u0438\u0445 \u0434\u0430\u043d\u043d\u044b\u0445 \u0437\u0430 \u0433\u0440\u0430\u043d\u0438\u0446\u0430\u043c\u0438 \u0432\u044b\u0434\u0435\u043b\u0435\u043d\u043d\u043e\u0433\u043e \u0431\u0443\u0444\u0435\u0440\u0430.\u00a0\u0412\u044b\u0437\u0432\u0430\u043d\u0430 \u043e\u0448\u0438\u0431\u043a\u043e\u0439 \u043f\u0440\u043e\u0432\u0435\u0440\u043a\u0438 \u0432\u0445\u043e\u0434\u043d\u044b\u0445 \u0434\u0430\u043d\u043d\u044b\u0445 \u0432 \u0441\u0435\u0440\u0432\u0438\u0441\u0435 SMTP. CVE-2023-42116 \u2013\u00a0\u0432\u044b\u0437\u0432\u0430\u043d\u0430 \u043a\u043e\u043f\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u0435\u043c […]<\/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-110482","post","type-post","status-publish","format-standard","hentry","category-news"],"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\udd47Sono state scoperte vulnerabilit\u00e0 critiche in Exim che possono permettere l'esecuzione di codice arbitrario sul server | ProHoster","description":"ZDI (Zero Day Initiative) ha pubblicato informazioni su tre vulnerabilit\u00e0 critiche trovate nel server di posta Exim, che consentono l'esecuzione di codice arbitrario nel contesto del processo del server che ha aperto la porta 25.","canonical_url":"https:\/\/prohoster.info\/it\/blog\/news\/v-exim-obnaruzhili-kriticheskie-uyazvimosti-pozvolyashhie-vypolnit-na-servere-proizvolnyj-kod","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\u0412 Exim \u043e\u0431\u043d\u0430\u0440\u0443\u0436\u0438\u043b\u0438 \u043a\u0440\u0438\u0442\u0438\u0447\u0435\u0441\u043a\u0438\u0435 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438, \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u0449\u0438\u0435 \u0432\u044b\u043f\u043e\u043b\u043d\u0438\u0442\u044c \u043d\u0430 \u0441\u0435\u0440\u0432\u0435\u0440\u0435 \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u043b\u044c\u043d\u044b\u0439 \u043a\u043e\u0434 | ProHoster","og:description":"ZDI (Zero Day Initiative) \u043e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043b\u0438 \u0441\u0432\u0435\u0434\u0435\u043d\u0438\u044f \u043e \u0442\u0440\u0435\u0445 \u043d\u0430\u0439\u0434\u0435\u043d\u043d\u044b\u0445 \u043a\u0440\u0438\u0442\u0438\u0447\u0435\u0441\u043a\u0438\u0445 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044f\u0445 \u0432 \u043f\u043e\u0447\u0442\u043e\u0432\u043e\u043c \u0441\u0435\u0440\u0432\u0435\u0440\u0435 Exim, \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0438\u0445 \u0432\u044b\u043f\u043e\u043b\u043d\u0438\u0442\u044c \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u043b\u044c\u043d\u044b\u0439 \u043a\u043e\u0434 \u043e\u0442 \u0438\u043c\u0435\u043d\u0438 \u043f\u0440\u043e\u0446\u0435\u0441\u0441\u0430 \u0441\u0435\u0440\u0432\u0435\u0440\u0430, \u043e\u0442\u043a\u0440\u044b\u0432\u0448\u0435\u0433\u043e 25\u0439 \u043f\u043e\u0440\u0442.","og:url":"https:\/\/prohoster.info\/it\/blog\/news\/v-exim-obnaruzhili-kriticheskie-uyazvimosti-pozvolyashhie-vypolnit-na-servere-proizvolnyj-kod","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":"2023-10-05T01:11:34+00:00","article:modified_time":"2023-10-05T01:11:34+00:00","article:publisher":"https:\/\/www.facebook.com\/prohoster","article:author":"https:\/\/www.facebook.com\/prohoster"},"aioseo_meta_data":[],"gt_translate_keys":[{"key":"link","format":"url"}],"_links":{"self":[{"href":"https:\/\/prohoster.info\/it\/wp-json\/wp\/v2\/posts\/110482","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/prohoster.info\/it\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/prohoster.info\/it\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/prohoster.info\/it\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/prohoster.info\/it\/wp-json\/wp\/v2\/comments?post=110482"}],"version-history":[{"count":0,"href":"https:\/\/prohoster.info\/it\/wp-json\/wp\/v2\/posts\/110482\/revisions"}],"wp:attachment":[{"href":"https:\/\/prohoster.info\/it\/wp-json\/wp\/v2\/media?parent=110482"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/prohoster.info\/it\/wp-json\/wp\/v2\/categories?post=110482"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/prohoster.info\/it\/wp-json\/wp\/v2\/tags?post=110482"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}