{"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\/sk\/blog\/news\/kriticheskaya-uyazvimost-v-wordpress-plagine-wpdiscuz-naschityvayushhem-80-tysyach-ustanovok","title":{"rendered":"Kritick\u00e1 zranite\u013enos\u0165 v plugine WordPress wpDiscuz, ktor\u00fd m\u00e1 80 tis\u00edc in\u0161tal\u00e1ci\u00ed","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Vo WordPress plugine <noindex><a rel=\"nofollow\" href=\"https:\/\/wordpress.org\/plugins\/wpdiscuz\/\">wpDiscuz<\/a><\/noindex>, ktor\u00fd je nain\u0161talovan\u00fd na viac ako 80 tis\u00edcach webov\u00fdch str\u00e1nok, <noindex><a rel=\"nofollow\" href=\"https:\/\/www.wordfence.com\/blog\/2020\/07\/critical-arbitrary-file-upload-vulnerability-patched-in-wpdiscuz-plugin\/\">bola zisten\u00e1<\/a><\/noindex> existuje nebezpe\u010dn\u00e1 zranite\u013enos\u0165, ktor\u00e1 umo\u017e\u0148uje bez autentifik\u00e1cie nahra\u0165 ak\u00fdko\u013evek s\u00fabor na server. M\u00f4\u017eete nahra\u0165 aj PHP s\u00fabory a spusti\u0165 svoj k\u00f3d na serveri. Probl\u00e9m sa t\u00fdka verzi\u00ed od 7.0.0 do 7.0.4 vr\u00e1tane. Zranite\u013enos\u0165 bola odstr\u00e1nen\u00e1 vo verzii 7.0.5.<\/p>\n<p>Plugin wpDiscuz umo\u017e\u0148uje pou\u017e\u00edvanie AJAX na dynamick\u00e9 odosielanie koment\u00e1rov bez na\u010d\u00edtania str\u00e1nky. Zranite\u013enos\u0165 bola sp\u00f4soben\u00e1 nedostato\u010dnou kontrolou typov s\u00faborov, ktor\u00e1 sa pou\u017e\u00edvala na pripojenie obr\u00e1zkov k koment\u00e1rom. Na obmedzenie nahr\u00e1vania \u013eubovo\u013en\u00fdch s\u00faborov sa volala funkcia ur\u010dovania MIME typu na z\u00e1klade obsahu, ktor\u00fa bolo \u013eahk\u00e9 ob\u00eds\u0165 a nahra\u0165 PHP s\u00fabory. Roz\u0161\u00edrenie s\u00faboru nebolo obmedzen\u00e9. Napr\u00edklad bolo mo\u017en\u00e9 nahra\u0165 s\u00fabor myphpfile.php tak, \u017ee na za\u010diatok sa vlo\u017eila sekvencia 89 50 4E 47 0D 0A 1A 0A, ktor\u00e1 identifikuje PNG obr\u00e1zky, a potom sa umiestnil blok &#171;&lt;?php&#187; s PHP k\u00f3dom.<\/p>\n<p><noindex><a rel=\"nofollow\" name=\"link\"><\/a><\/noindex><\/p>\n<p>Zdroj: <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 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c, \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0430\u044f \u0431\u0435\u0437 \u0430\u0443\u0442\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u0438 \u0437\u0430\u0433\u0440\u0443\u0437\u0438\u0442\u044c \u043b\u044e\u0431\u043e\u0439 \u0444\u0430\u0439\u043b \u043d\u0430 \u0441\u0435\u0440\u0432\u0435\u0440. \u0412 \u0442\u043e\u043c \u0447\u0438\u0441\u043b\u0435 \u043c\u043e\u0436\u043d\u043e \u0437\u0430\u0433\u0440\u0443\u0437\u0438\u0442\u044c PHP-\u0444\u0430\u0439\u043b\u044b \u0438 \u0434\u043e\u0431\u0438\u0442\u044c\u0441\u044f \u0432\u044b\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u044f \u0441\u0432\u043e\u0435\u0433\u043e \u043a\u043e\u0434\u0430 \u043d\u0430 \u0441\u0435\u0440\u0432\u0435\u0440\u0435. \u041f\u0440\u043e\u0431\u043b\u0435\u043c\u0435 \u043f\u043e\u0434\u0432\u0435\u0440\u0436\u0435\u043d\u044b \u0432\u0435\u0440\u0441\u0438\u0438 \u0441 7.0.0 \u043f\u043e 7.0.4 \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 5.0.4 - aioseo.com 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