{"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\/nl\/blog\/news\/uyazvimost-dopuskayushhaya-podstanovku-javascript-koda-cherez-wordpress-plagin-optinmonster","title":{"rendered":"Kwetsbaarheid die het invoegen van JavaScript-code via de WordPress-plugin OptinMonster mogelijk maakt","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

In de WordPress-plugin OptinMonster, die meer dan een miljoen actieve installs heeft en wordt gebruikt voor het organiseren van pop-upmeldingen en aanbiedingen, is een kwetsbaarheid (CVE-2021-39341) ontdekt die het mogelijk maakt om eigen JavaScript-code op een website die deze plugin gebruikt te plaatsen. De kwetsbaarheid is verholpen in versie 2.6.5. Om de toegang via gestolen sleutels na de update te blokkeren, hebben de ontwikkelaars van OptinMonster alle eerder aangemaakte API-toegangssleutels ongeldig gemaakt en zijn er beperkingen toegevoegd aan het gebruik van sleutels van WordPress-sites voor het wijzigen van OptinMonster-campagnes. <\/p>\n

Het probleem wordt veroorzaakt door het bestaan van de REST-API \/wp-json\/omapp\/v1\/support, die toegankelijk was zonder authenticatie \u2014 het verzoek werd uitgevoerd zonder aanvullende controles als de Referer-header de tekst \"https:\/\/wp.app.optinmonster.test\" bevatte en de HTTP-verzoekstype was ingesteld op \"OPTIONS\" (dit kan worden overschreven met de HTTP-header \"X-HTTP-Method-Override\"). Onder de gegevens die worden geretourneerd bij het aanroepen van deze REST-API, was er een toegangssleutel die het mogelijk maakte om verzoeken naar willekeurige REST-API-handlers te verzenden. <\/p>\n

Met de verkregen sleutel kon de aanvaller wijzigingen aanbrengen in alle pop-up blokken die via OptinMonster worden weergegeven, inclusief het uitvoeren van zijn eigen JavaScript-code. Met de mogelijkheid om zijn eigen JavaScript-code in de context van de website uit te voeren, kon de aanvaller gebruikers omleiden naar zijn eigen site of het inbrengen van een bevoorrechte account in de webinterface mogelijk maken wanneer de ge\u00efnjecteerde JavaScript-code door de beheerder van de site werd uitgevoerd. Met toegang tot de webinterface kon de aanvaller zijn PHP-code uitvoeren op de server<\/a>.
\n
Bron: 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\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\udd47Kwetsbaarheid die invoeging van JavaScript-code mogelijk maakt via de WordPress-plugin OptinMonster | 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