{"id":93140,"date":"2020-09-03T07:42:03","date_gmt":"2020-09-03T05:42:03","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/kriticheskaya-uyazvimost-v-wordpress-plagine-file-manager-imeyushhem-700-tysyach-ustanovok"},"modified":"2020-09-03T07:42:03","modified_gmt":"2020-09-03T05:42:03","slug":"kriticheskaya-uyazvimost-v-wordpress-plagine-file-manager-imeyushhem-700-tysyach-ustanovok","status":"publish","type":"post","link":"https:\/\/prohoster.info\/hu\/blog\/news\/kriticheskaya-uyazvimost-v-wordpress-plagine-file-manager-imeyushhem-700-tysyach-ustanovok","title":{"rendered":"Kritikus sebezhet\u0151s\u00e9g a WordPress File Manager pluginban, amelynek 700 ezer telep\u00edt\u00e9se van","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

A WordPress b\u0151v\u00edtm\u00e9nyben F\u00e1jlkezel\u0151<\/a><\/noindex>, t\u00f6bb mint 700 ezer akt\u00edv telep\u00edt\u00e9ssel rendelkezik, identified<\/a><\/noindex> sebezhet\u0151s\u00e9g, amely lehet\u0151v\u00e9 teszi tetsz\u0151leges parancsok \u00e9s PHP-scriptek v\u00e9grehajt\u00e1s\u00e1t a szerveren. A probl\u00e9ma a 6.0 \u00e9s 6.8 k\u00f6z\u00f6tti File Manager verzi\u00f3kban jelentkezik, \u00e9s a 6.9-es verzi\u00f3ban jav\u00edtott\u00e1k. <\/p>\n

A File Manager plugin eszk\u00f6z\u00f6ket biztos\u00edt a WordPress f\u00e1jlok kezel\u00e9s\u00e9re, alacsony szint\u0171 f\u00e1jlkezel\u00e9si m\u0171veletekhez az al\u00e1bbi k\u00f6nyvt\u00e1r haszn\u00e1lat\u00e1val elFinder<\/a><\/noindex>. Az elFinder k\u00f6nyvt\u00e1r forr\u00e1sk\u00f3dj\u00e1ban olyan f\u00e1jlok tal\u00e1lhat\u00f3k, amelyek k\u00f3dmint\u00e1kat tartalmaznak, \u00e9s a .dist kiterjeszt\u00e9ssel \u00e9rkeznek a munkak\u00f6nyvt\u00e1rba. A sebezhet\u0151s\u00e9g abb\u00f3l ad\u00f3dik, hogy a k\u00f6nyvt\u00e1r telep\u00edt\u00e9sekor a 'connector.minimal.php.dist' f\u00e1jlt \u00e1tnevezt\u00e9k 'connector.minimal.php'-ra, ezzel lehet\u0151v\u00e9 t\u00e9ve k\u00fcls\u0151 k\u00e9r\u00e9sek \u00fatj\u00e1n t\u00f6rt\u00e9n\u0151 v\u00e9grehajt\u00e1s\u00e1t. Ez a szkript lehet\u0151v\u00e9 teszi b\u00e1rmilyen f\u00e1jlkezel\u00e9si m\u0171velet (felt\u00f6lt\u00e9s, megnyit\u00e1s, szerkeszt\u00e9s, \u00e1tnevez\u00e9s, t\u00f6rl\u00e9s stb.) v\u00e9grehajt\u00e1s\u00e1t, mivel param\u00e9tereit a f\u0151 plugin run() f\u00fcggv\u00e9ny\u00e9nek adja \u00e1t, ami felhaszn\u00e1lhat\u00f3 PHP-f\u00e1jlok cser\u00e9j\u00e9re a WordPress platformon, \u00e9s tetsz\u0151leges k\u00f3d futtat\u00e1s\u00e1ra.<\/p>\n

A vesz\u00e9lyt tov\u00e1bb fokozza, hogy a sebezhet\u0151s\u00e9g m\u00e1r haszn\u00e1lj\u00e1k<\/a><\/noindex> automatikus t\u00e1mad\u00e1sok v\u00e9grehajt\u00e1s\u00e1ra, amelyek sor\u00e1n a 'plugins\/wp-file-manager\/lib\/files\/' k\u00f6nyvt\u00e1rba az 'upload' parancs seg\u00edts\u00e9g\u00e9vel egy PHP-k\u00f3dot tartalmaz\u00f3 k\u00e9pet t\u00f6ltenek fel, amelyet k\u00e9s\u0151bb PHP-szkriptt\u00e9 neveznek \u00e1t, \u00e9s a neve v\u00e9letlenszer\u0171en van kiv\u00e1lasztva, tartalmazza a 'hard' vagy 'x.' sz\u00f6veget, p\u00e9ld\u00e1ul hardfork.php, hardfind.php, x.php stb. Miut\u00e1n a PHP-k\u00f3d fut, a \/wp-admin\/admin-ajax.php \u00e9s a \/wp-includes\/user.php f\u00e1jlokba h\u00e1ts\u00f3 ajt\u00f3t ad hozz\u00e1, amely hozz\u00e1f\u00e9r\u00e9st biztos\u00edt a t\u00e1mad\u00f3knak a weboldal adminisztr\u00e1tor\u00e1nak fel\u00fclet\u00e9hez. A kihaszn\u00e1l\u00e1s a 'wp-file-manager\/lib\/php\/connector.minimal.php' f\u00e1jl POST k\u00e9r\u00e9s\u00e9nek elk\u00fcld\u00e9s\u00e9vel t\u00f6rt\u00e9nik. <\/p>\n

Figyelemre m\u00e9lt\u00f3, hogy a felt\u00f6r\u00e9st k\u00f6vet\u0151en a h\u00e1ts\u00f3 ajt\u00f3 mellett v\u00e1ltoztat\u00e1sok is t\u00f6rt\u00e9nnek a 'connector.minimal.php' f\u00e1jlhoz val\u00f3 tov\u00e1bbi hozz\u00e1f\u00e9r\u00e9s v\u00e9delme \u00e9rdek\u00e9ben, amelyben a sebezhet\u0151s\u00e9g tal\u00e1lhat\u00f3, annak c\u00e9lj\u00e1b\u00f3l, hogy megakad\u00e1lyozz\u00e1k az \u00fajabb t\u00e1mad\u00e1sokat m\u00e1s t\u00e1mad\u00f3k r\u00e9sz\u00e9r\u0151l.
\nAz els\u0151 t\u00e1mad\u00e1si k\u00eds\u00e9rleteket szeptember 1-j\u00e9n reggel 7 \u00f3rakor (UTC) \u00e9szlelt\u00e9k.
\n12:33 (UTC) a File Manager b\u0151v\u00edtm\u00e9ny fejleszt\u0151i jav\u00edt\u00e1st adtak ki. A Wordfence biztons\u00e1gi c\u00e9g adatai szerint naponta k\u00f6r\u00fclbel\u00fcl 450 000 k\u00eds\u00e9rletet blokkoltak a sebezhet\u0151s\u00e9g kihaszn\u00e1l\u00e1s\u00e1ra. A h\u00e1l\u00f3zat szkennel\u00e9se sor\u00e1n kider\u00fclt, hogy a b\u0151v\u00edtm\u00e9nyt haszn\u00e1l\u00f3 weboldalak 52%-a m\u00e9g nem friss\u00fclt, \u00e9s tov\u00e1bbra is sebezhet\u0151. A friss\u00edt\u00e9s telep\u00edt\u00e9se ut\u00e1n \u00e9rdemes ellen\u0151rizni a http-szerver napl\u00f3iban a 'connector.minimal.php' szkripthez val\u00f3 hozz\u00e1f\u00e9r\u00e9st a rendszer kompromitt\u00e1l\u00e1s\u00e1nak meg\u00e1llap\u00edt\u00e1s\u00e1hoz.<\/p>\n

Additionally, a corrective release can be noted WordPress 5.5.1<\/a><\/noindex> in which 40 fixes are proposed. 40 fixes<\/a><\/noindex>.<\/p>\n

<\/a><\/noindex><\/p>\n

Forr\u00e1s: opennet.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

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