{"id":102176,"date":"2021-11-02T03:36:46","date_gmt":"2021-11-02T01:36:46","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/uyazvimost-dopuskayushhaya-podstanovku-javascript-koda-cherez-wordpress-plagin-optinmonster"},"modified":"2021-11-02T03:36:46","modified_gmt":"2021-11-02T01:36:46","slug":"uyazvimost-dopuskayushhaya-podstanovku-javascript-koda-cherez-wordpress-plagin-optinmonster","status":"publish","type":"post","link":"https:\/\/prohoster.info\/it\/blog\/news\/uyazvimost-dopuskayushhaya-podstanovku-javascript-koda-cherez-wordpress-plagin-optinmonster","title":{"rendered":"Vulnerabilit\u00e0 che consente l'inserimento di codice JavaScript tramite il plugin WordPress OptinMonster","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Nel plugin WordPress OptinMonster, con oltre un milione di installazioni attive e utilizzato per organizzare la visualizzazione di avvisi e offerte pop-up, \u00e8 stata identificata una vulnerabilit\u00e0 (CVE-2021-39341) che permette di inserire il proprio codice JavaScript su un sito che utilizza il plugin menzionato. La vulnerabilit\u00e0 \u00e8 stata corretta nella versione 2.6.5. Per bloccare l'accesso tramite chiavi compromesse dopo l'installazione dell'aggiornamento, gli sviluppatori di OptinMonster hanno annullato tutte le chiavi di accesso API precedentemente create e hanno aggiunto restrizioni sull'uso delle chiavi dei siti WordPress per modificare le campagne di OptinMonster. <\/p>\n

Il problema \u00e8 causato dalla presenza del REST-API \/wp-json\/omapp\/v1\/support, accessibile senza autenticazione \u2014 la richiesta veniva eseguita senza ulteriori controlli se nella intestazione Referer era presente la stringa \u00abhttps:\/\/wp.app.optinmonster.test\u00bb e impostando il tipo di richiesta HTTP su \u00abOPTIONS\u00bb (sovrascrivibile tramite l'intestazione HTTP \u00abX-HTTP-Method-Override\u00bb). Tra i dati restituiti durante l'accesso al REST-API in questione, era presente una chiave di accesso che consentiva di inviare richieste a qualsiasi elaboratore di REST-API. <\/p>\n

Con la chiave ottenuta, l'attaccante poteva apportare modifiche a qualsiasi popup visualizzato tramite OptinMonster, incluso l'esecuzione del proprio codice JavaScript. Ottenendo la possibilit\u00e0 di eseguire il proprio codice JavaScript nel contesto del sito, l'attaccante poteva reindirizzare gli utenti al proprio sito o sostituire un account privilegiato nell'interfaccia web durante l'esecuzione del codice JavaScript fornito dall'amministratore del sito. Avendo accesso all'interfaccia web, l'attaccante poteva riuscire a eseguire il proprio codice PHP su server<\/a>.
\n
Fonte: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u0412 WordPress-\u0434\u043e\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u0438 OptinMonster, \u0438\u043c\u0435\u044e\u0449\u0435\u043c \u0431\u043e\u043b\u0435\u0435 \u043c\u0438\u043b\u043b\u0438\u043e\u043d\u0430 \u0430\u043a\u0442\u0438\u0432\u043d\u044b\u0445 \u0443\u0441\u0442\u0430\u043d\u043e\u0432\u043e\u043a \u0438 \u043f\u0440\u0438\u043c\u0435\u043d\u044f\u0435\u043c\u043e\u043c \u0434\u043b\u044f \u043e\u0440\u0433\u0430\u043d\u0438\u0437\u0430\u0446\u0438\u0438 \u0432\u044b\u0432\u043e\u0434\u0430 \u0432\u0441\u043f\u043b\u044b\u0432\u0430\u044e\u0449\u0438\u0445 \u0443\u0432\u0435\u0434\u043e\u043c\u043b\u0435\u043d\u0438\u0439 \u0438 \u043f\u0440\u0435\u0434\u043b\u043e\u0436\u0435\u043d\u0438\u0439, \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u0430 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c (CVE-2021-39341), \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0430\u044f \u0440\u0430\u0437\u043c\u0435\u0441\u0442\u0438\u0442\u044c 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\u0430\u043d\u043d\u0443\u043b\u0438\u0440\u043e\u0432\u0430\u043b\u0438 \u0432\u0441\u0435 \u0440\u0430\u043d\u0435\u0435 \u0441\u043e\u0437\u0434\u0430\u043d\u043d\u044b\u0435 \u043a\u043b\u044e\u0447\u0438 \u0434\u043e\u0441\u0442\u0443\u043f\u0430 \u043a API \u0438 \u0434\u043e\u0431\u0430\u0432\u0438\u043b\u0438 […]<\/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-102176","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\udd47Vulnerabilit\u00e0 che consente l'inserimento di codice JavaScript tramite il plugin WordPress OptinMonster | 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