{"id":102661,"date":"2021-12-19T03:36:43","date_gmt":"2021-12-19T01:36:45","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/eshhyo-odna-uyazvimost-v-log4j-2-problemy-v-log4j-zatragivayut-8-maven-paketov"},"modified":"2021-12-19T03:36:43","modified_gmt":"2021-12-19T01:36:45","slug":"eshhyo-odna-uyazvimost-v-log4j-2-problemy-v-log4j-zatragivayut-8-maven-paketov","status":"publish","type":"post","link":"https:\/\/prohoster.info\/it\/blog\/novosti-interneta\/eshhyo-odna-uyazvimost-v-log4j-2-problemy-v-log4j-zatragivayut-8-maven-paketov","title":{"rendered":"Un'altra vulnerabilit\u00e0 in Log4j 2. I problemi in Log4j interessano l'8% dei pacchetti Maven","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>\u00c8 stata scoperta un'altra vulnerabilit\u00e0 nella libreria Log4j 2 (CVE-2021-45105), che, a differenza delle due precedenti, \u00e8 stata classificata come pericolosa, ma non critica. Il nuovo problema consente di causare un'interruzione del servizio e si manifesta attraverso cicli infiniti e crash durante l'elaborazione di determinate stringhe. La vulnerabilit\u00e0 \u00e8 stata rimossa nella versione di Log4j 2.17 pubblicata poche ore fa. La gravit\u00e0 della vulnerabilit\u00e0 \u00e8 attenuata dal fatto che il problema si verifica solo sui sistemi con Java 8.      <\/p>\n<p>\u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438 \u043f\u043e\u0434\u0432\u0435\u0440\u0436\u0435\u043d\u044b \u0441\u0438\u0441\u0442\u0435\u043c\u044b, \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u044e\u0449\u0438\u0435 \u043f\u0440\u0438 \u043e\u043f\u0440\u0435\u0434\u0435\u043b\u0435\u043d\u0438\u0438 \u0444\u043e\u0440\u043c\u0430\u0442\u0430 \u0432\u044b\u0432\u043e\u0434\u0430 \u0432 \u043b\u043e\u0433 \u043a\u043e\u043d\u0442\u0435\u043a\u0441\u0442\u043d\u044b\u0435 \u0437\u0430\u043f\u0440\u043e\u0441\u044b (Context Lookup), \u0442\u0430\u043a\u0438\u0435 \u043a\u0430\u043a ${ctx:var}. \u0412 \u0432\u0435\u0440\u0441\u0438\u044f\u0445 Log4j, \u043d\u0430\u0447\u0438\u043d\u0430\u044f \u0441  2.0-alpha1  \u0438 \u0437\u0430\u043a\u0430\u043d\u0447\u0438\u0432\u0430\u044f  2.16.0, \u043e\u0442\u0441\u0443\u0442\u0441\u0442\u0432\u043e\u0432\u0430\u043b\u0430 \u0437\u0430\u0449\u0438\u0442\u0430 \u043e\u0442 \u043d\u0435\u043a\u043e\u043d\u0442\u0440\u043e\u043b\u0438\u0440\u0443\u0435\u043c\u043e\u0439 \u0440\u0435\u043a\u0443\u0440\u0441\u0438\u0438, \u0447\u0442\u043e \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u043b\u043e \u0430\u0442\u0430\u043a\u0443\u044e\u0449\u0435\u043c\u0443 \u0447\u0435\u0440\u0435\u0437 \u043c\u0430\u043d\u0438\u043f\u0443\u043b\u044f\u0446\u0438\u0438 \u0441\u043e \u0437\u043d\u0430\u0447\u0435\u043d\u0438\u0435\u043c, \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u0435\u043c\u044b\u043c \u043f\u0440\u0438 \u043f\u043e\u0434\u0441\u0442\u0430\u043d\u043e\u0432\u043a\u0435, \u0432\u044b\u0437\u0432\u0430\u0442\u044c \u0437\u0430\u0446\u0438\u043a\u043b\u0438\u0432\u0430\u043d\u0438\u0435, \u043f\u0440\u0438\u0432\u043e\u0434\u044f\u0449\u0435\u0435 \u043a \u0438\u0441\u0447\u0435\u0440\u043f\u0430\u043d\u0438\u044e \u043c\u0435\u0441\u0442\u0430 \u0432 \u0441\u0442\u0435\u043a\u0435 \u0438 \u0430\u0432\u0430\u0440\u0438\u0439\u043d\u043e\u043c\u0443 \u0437\u0430\u0432\u0435\u0440\u0448\u0435\u043d\u0438\u044e \u043f\u0440\u043e\u0446\u0435\u0441\u0441\u0430. \u0412 \u0447\u0430\u0441\u0442\u043d\u043e\u0441\u0442\u0438, \u043f\u0440\u043e\u0431\u043b\u0435\u043c\u0430 \u0432\u043e\u0437\u043d\u0438\u043a\u0430\u043b\u0430 \u043f\u0440\u0438 \u043f\u043e\u0434\u0441\u0442\u0430\u043d\u043e\u0432\u043a\u0435 \u0442\u0430\u043a\u0438\u0445 \u0437\u043d\u0430\u0447\u0435\u043d\u0438\u0439, \u043a\u0430\u043a  &#171;${${::-${::-$${::-j}}}}&#187;.    <\/p>\n<p>Inoltre, i ricercatori di Blumira hanno proposto un metodo di attacco contro le applicazioni Java vulnerabili che non accettano richieste di rete esterne. Questo tipo di attacco pu\u00f2 colpire i sistemi degli sviluppatori o degli utenti di applicazioni Java. Il fulcro del metodo \u00e8 che, se sul sistema dell'utente ci sono processi Java vulnerabili che accettano connessioni solo dall'host locale (localhost) o che gestiscono richieste RMI (Remote Method Invocation, porta 1099), l'attacco pu\u00f2 essere eseguito tramite codice JavaScript che viene eseguito aprendo una pagina malevola nel browser dell'utente. Per stabilire una connessione con la porta di rete dell'applicazione Java durante un attacco simile, si utilizza l'API WebSocket, la quale, a differenza delle richieste HTTP, non \u00e8 soggetta a restrizioni same-origin (WebSocket pu\u00f2 anche essere utilizzato per scansionare le porte di rete sull'host locale per identificare i gestori di rete disponibili).  <center><img decoding=\"async\" alt=\"Un&#039;altra vulnerabilit\u00e0 in Log4j 2. I problemi in Log4j interessano l&#039;8% dei pacchetti Maven\" src=\"\/wp-content\/uploads\/2021\/12\/811931e8c3ae3f3f3c2e81db361034e6.jpg\" style=\"display:block;margin: 0 auto;\" \/><\/center>    <\/p>\n<p>\u0422\u0430\u043a\u0436\u0435 \u0438\u043d\u0442\u0435\u0440\u0435\u0441 \u043f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u0442 \u043e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d\u043d\u044b\u0435 \u043a\u043e\u043c\u043f\u0430\u043d\u0438\u0435\u0439 Google \u0440\u0435\u0437\u0443\u043b\u044c\u0442\u0430\u0442\u044b \u043e\u0446\u0435\u043d\u043a\u0438 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438 \u0431\u0438\u0431\u043b\u0438\u043e\u0442\u0435\u043a, \u0441\u0432\u044f\u0437\u0430\u043d\u043d\u044b\u0445 \u0437\u0430\u0432\u0438\u0441\u0438\u043c\u043e\u0441\u0442\u044f\u043c\u0438 \u0441 Log4j. \u041f\u043e \u0434\u0430\u043d\u043d\u044b\u043c Google, \u043f\u0440\u043e\u0431\u043b\u0435\u043c\u0430 \u0437\u0430\u0442\u0440\u0430\u0433\u0438\u0432\u0430\u0435\u0442 8% \u043e\u0442 \u0432\u0441\u0435\u0445 \u043f\u0430\u043a\u0435\u0442\u043e\u0432 \u0432 \u0440\u0435\u043f\u043e\u0437\u0438\u0442\u043e\u0440\u0438\u0438 Maven Central. \u0412 \u0447\u0430\u0441\u0442\u043d\u043e\u0441\u0442\u0438,  \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438 \u043e\u043a\u0430\u0437\u0430\u043b\u0438\u0441\u044c \u043f\u043e\u0434\u0432\u0435\u0440\u0436\u0435\u043d\u044b 35863 Java-\u043f\u0430\u043a\u0435\u0442\u043e\u0432, \u0441\u0432\u044f\u0437\u0430\u043d\u043d\u044b\u0445 \u0441 Log4j \u043f\u0440\u044f\u043c\u044b\u043c\u0438 \u0438 \u043a\u043e\u0441\u0432\u0435\u043d\u043d\u044b\u043c\u0438 \u0437\u0430\u0432\u0438\u0441\u0438\u043c\u043e\u0441\u0442\u044f\u043c\u0438. \u041f\u0440\u0438 \u044d\u0442\u043e\u043c Log4j \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u0435\u0442\u0441\u044f \u0432 \u043a\u0430\u0447\u0435\u0441\u0442\u0432\u0435 \u043f\u0440\u044f\u043c\u043e\u0439 \u0437\u0430\u0432\u0438\u0441\u0438\u043c\u043e\u0441\u0442\u0438  \u043f\u0435\u0440\u0432\u043e\u0433\u043e \u0443\u0440\u043e\u0432\u043d\u044f \u0442\u043e\u043b\u044c\u043a\u043e \u0432 17% \u0441\u043b\u0443\u0447\u0430\u0435\u0432, \u0430 \u0432 83% \u043e\u0445\u0432\u0430\u0447\u0435\u043d\u043d\u044b\u0445 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c\u044e \u043f\u0430\u043a\u0435\u0442\u043e\u0432 \u043f\u0440\u0438\u0432\u044f\u0437\u043a\u0430 \u043e\u0441\u0443\u0449\u0435\u0441\u0442\u0432\u043b\u044f\u0435\u0442\u0441\u044f \u0447\u0435\u0440\u0435\u0437 \u043f\u0440\u043e\u043c\u0435\u0436\u0443\u0442\u043e\u0447\u043d\u044b\u0435 \u043f\u0430\u043a\u0435\u0442\u044b, \u0437\u0430\u0432\u0438\u0441\u0438\u043c\u044b\u0435 \u043e\u0442 Log4j, \u0442.\u0435. \u0437\u0430\u0432\u0438\u0441\u0438\u043c\u043e\u0441\u0442\u0438 \u0432\u0442\u043e\u0440\u043e\u0433\u043e \u0438 \u0431\u043e\u043b\u0435\u0435 \u0432\u044b\u0441\u043e\u043a\u043e\u0433\u043e \u0443\u0440\u043e\u0432\u043d\u044f (21% &#8212; \u0432\u0442\u043e\u0440\u043e\u0433\u043e \u0443\u0440\u043e\u0432\u043d\u044f, 12% &#8212; \u0442\u0440\u0435\u0442\u044c\u0435\u0433\u043e, 14% &#8212; \u0447\u0435\u0442\u0432\u0451\u0440\u0442\u043e\u0433\u043e, 26% &#8212; \u043f\u044f\u0442\u043e\u0433\u043e, 6% &#8212; \u0448\u0435\u0441\u0442\u043e\u0433\u043e).   \u0422\u0435\u043c\u043f\u044b \u0438\u0441\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u044f \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438 \u043f\u043e\u043a\u0430 \u043e\u0441\u0442\u0430\u0432\u043b\u044f\u044e\u0442 \u0436\u0435\u043b\u0430\u0442\u044c \u043b\u0443\u0447\u0448\u0435\u0433\u043e, \u0447\u0435\u0440\u0435\u0437 \u043d\u0435\u0434\u0435\u043b\u044e \u043f\u043e\u0441\u043b\u0435 \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u0438\u044f \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438 \u0438\u0437 35863 \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u043d\u044b\u0445 \u043f\u0430\u043a\u0435\u0442\u043e\u0432 \u043f\u0440\u043e\u0431\u043b\u0435\u043c\u0430 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0430 \u043f\u043e\u043a\u0430 \u0442\u043e\u043b\u044c\u043a\u043e \u0432 4620, \u0442.\u0435. \u0432 13%.    <center><img decoding=\"async\" alt=\"Un&#039;altra vulnerabilit\u00e0 in Log4j 2. I problemi in Log4j interessano l&#039;8% dei pacchetti Maven\" src=\"\/wp-content\/uploads\/2021\/12\/1e61b09923c7e055fa635545f1b3de6b.jpg\" style=\"display:block;margin: 0 auto;\" \/><\/center>    <\/p>\n<p>Nel frattempo, l'Agenzia per la cybersicurezza e la protezione delle infrastrutture degli Stati Uniti ha pubblicato un'ordinanza d'emergenza che obbliga le agenzie federali a identificare i sistemi informatici vulnerabili a Log4j e a installare gli aggiornamenti necessari per bloccare il problema entro il 23 dicembre. Entro il 28 dicembre, le organizzazioni devono relazionare sul lavoro svolto. \u00c8 stata preparata una lista di prodotti in cui \u00e8 stata confermata la vulnerabilit\u00e0 (la lista include oltre 23.000 applicazioni).<br \/>\n<br \/>Fonte: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=56370\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0412 \u0431\u0438\u0431\u043b\u0438\u043e\u0442\u0435\u043a\u0435 Log4j 2 \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u0430 \u0435\u0449\u0451 \u043e\u0434\u043d\u0430 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c (CVE-2021-45105), \u043a\u043e\u0442\u043e\u0440\u0430\u044f \u0432 \u043e\u0442\u043b\u0438\u0447\u0438\u0435 \u043e\u0442 \u0434\u0432\u0443\u0445 \u043f\u0440\u043e\u0448\u043b\u044b\u0445 \u043f\u0440\u043e\u0431\u043b\u0435\u043c, \u043e\u0442\u043d\u0435\u0441\u0435\u043d\u0430 \u043a \u043a\u0430\u0442\u0435\u0433\u043e\u0440\u0438\u0438 \u043e\u043f\u0430\u0441\u043d\u044b\u0445, \u043d\u043e \u043d\u0435 \u043a\u0440\u0438\u0442\u0438\u0447\u0435\u0441\u043a\u0438\u0445. \u041d\u043e\u0432\u0430\u044f \u043f\u0440\u043e\u0431\u043b\u0435\u043c\u0430 \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u0435\u0442 \u0432\u044b\u0437\u0432\u0430\u0442\u044c \u043e\u0442\u043a\u0430\u0437 \u0432 \u043e\u0431\u0441\u043b\u0443\u0436\u0438\u0432\u0430\u043d\u0438\u0438 \u0438 \u043f\u0440\u043e\u044f\u0432\u043b\u044f\u0435\u0442\u0441\u044f \u0432 \u0432\u0438\u0434\u0435 \u0437\u0430\u0446\u0438\u043a\u043b\u0438\u0432\u0430\u043d\u0438\u044f \u0438 \u0430\u0432\u0430\u0440\u0438\u0439\u043d\u043e\u0433\u043e \u0437\u0430\u0432\u0435\u0440\u0448\u0435\u043d\u0438\u044f \u043f\u0440\u0438 \u043e\u0431\u0440\u0430\u0431\u043e\u0442\u043a\u0435 \u043e\u043f\u0440\u0435\u0434\u0435\u043b\u0451\u043d\u043d\u044b\u0445 \u0441\u0442\u0440\u043e\u043a. \u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0430 \u0432 \u043e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d\u043d\u043e\u043c \u043d\u0435\u0441\u043a\u043e\u043b\u044c\u043a\u043e \u0447\u0430\u0441\u043e\u0432 \u043d\u0430\u0437\u0430\u0434 \u0432\u044b\u043f\u0443\u0441\u043a\u0435 Log4j 2.17. \u041e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u044c \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438 \u0441\u0433\u043b\u0430\u0436\u0438\u0432\u0430\u0435\u0442 [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":102662,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-102661","post","type-post","status-publish","format-standard","has-post-thumbnail","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 \u0431\u0438\u0431\u043b\u0438\u043e\u0442\u0435\u043a\u0435 Log4j 2 \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u0430 \u0435\u0449\u0451 \u043e\u0434\u043d\u0430 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c (CVE-2021-45105), \u043a\u043e\u0442\u043e\u0440\u0430\u044f \u0432 \u043e\u0442\u043b\u0438\u0447\u0438\u0435 \u043e\u0442 \u0434\u0432\u0443\u0445 \u043f\u0440\u043e\u0448\u043b\u044b\u0445 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I problemi in Log4j interessano l'8% dei pacchetti Maven | ProHoster","description":"\u00c8 stata identificata un'altra vulnerabilit\u00e0 nella libreria Log4j 2 (CVE-2021-45105), che a differenza dei due problemi precedenti, \u00e8 classificata come pericolosa ma non critica. Il nuovo problema consente di causare un'interruzione del servizio e si manifesta con il blocco e l'arresto anomalo durante l'elaborazione di determinate stringhe. La vulnerabilit\u00e0 \u00e8 stata risolta nella versione Log4j 2.17 pubblicata poche ore fa. 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