{"id":90583,"date":"2020-08-03T01:42:25","date_gmt":"2020-08-02T23:42:25","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/kriticheskaya-uyazvimost-v-wordpress-plagine-wpdiscuz-naschityvayushhem-80-tysyach-ustanovok"},"modified":"2020-08-03T01:42:25","modified_gmt":"2020-08-02T23:42:25","slug":"kriticheskaya-uyazvimost-v-wordpress-plagine-wpdiscuz-naschityvayushhem-80-tysyach-ustanovok","status":"publish","type":"post","link":"https:\/\/prohoster.info\/de\/blog\/news\/kriticheskaya-uyazvimost-v-wordpress-plagine-wpdiscuz-naschityvayushhem-80-tysyach-ustanovok","title":{"rendered":"Kritische Sicherheitsanf\u00e4lligkeit im WordPress-Plugin wpDiscuz mit 80.000 Installationen","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Im WordPress-Plugin <noindex><a rel=\"nofollow\" href=\"https:\/\/wordpress.org\/plugins\/wpdiscuz\/\">wpDiscuz<\/a><\/noindex>, das auf mehr als 80.000 Websites installiert ist, <noindex><a rel=\"nofollow\" href=\"https:\/\/www.wordfence.com\/blog\/2020\/07\/critical-arbitrary-file-upload-vulnerability-patched-in-wpdiscuz-plugin\/\">entdeckt<\/a><\/noindex> gibt es eine gef\u00e4hrliche Schwachstelle, die es erm\u00f6glicht, ohne Authentifizierung beliebige Dateien auf den Server hochzuladen. Dazu geh\u00f6ren PHP-Dateien, die die Ausf\u00fchrung von eigenem Code auf dem Server erm\u00f6glichen. Betroffen sind die Versionen von 7.0.0 bis einschlie\u00dflich 7.0.4. Die Schwachstelle wurde in der Version 7.0.5 behoben.<\/p>\n<p>Das wpDiscuz-Plugin erm\u00f6glicht die dynamische \u00dcbermittlung von Kommentaren \u00fcber AJAX, ohne die Seite neu zu laden. Eine Sicherheitsanf\u00e4lligkeit ergab sich aus einem Mangel im Code zur \u00dcberpr\u00fcfung der hochgeladenen Dateitypen, der zum Anh\u00e4ngen von Bildern an Kommentare verwendet wird. Um den Upload beliebiger Dateien einzuschr\u00e4nken, wurde eine Funktion zur Bestimmung des MIME-Typs anhand des Inhalts aufgerufen, die einfach umgangen werden konnte, um PHP-Dateien hochzuladen. Die Dateiendung war nicht eingeschr\u00e4nkt. Zum Beispiel konnte eine Datei myphpfile.php hochgeladen werden, indem zun\u00e4chst die Sequenz 89 50 4E 47 0D 0A 1A 0A angegeben wurde, die PNG-Bilder identifiziert, gefolgt von einem Block &#171;&lt;?php&#187; mit PHP-Code.<\/p>\n<p><noindex><a rel=\"nofollow\" name=\"link\"><\/a><\/noindex><\/p>\n<p>Quelle: <a \ncontent=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=53477\">opennet.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0412 WordPress-\u043f\u043b\u0430\u0433\u0438\u043d\u0435 wpDiscuz, \u043a\u043e\u0442\u043e\u0440\u044b\u0439 \u0443\u0441\u0442\u0430\u043d\u043e\u0432\u043b\u0435\u043d \u043d\u0430 \u0431\u043e\u043b\u0435\u0435 \u0447\u0435\u043c 80 \u0442\u044b\u0441\u044f\u0447\u0430\u0445 \u0441\u0430\u0439\u0442\u043e\u0432, \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u0430 \u043e\u043f\u0430\u0441\u043d\u0430\u044f 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\u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e. \u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0430 \u0432 \u0432\u044b\u043f\u0443\u0441\u043a\u0435 7.0.5. \u041f\u043b\u0430\u0433\u0438\u043d wpDiscuz \u043f\u0440\u0435\u0434\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u0442 \u0432\u043e\u0437\u043c\u043e\u0436\u043d\u043e\u0441\u0442\u044c \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u044f AJAX \u0434\u043b\u044f [&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-90583","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.1.1 - 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