{"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\/hu\/blog\/news\/uyazvimost-v-phpbb-pozvolyayushhaya-poluchit-dostup-k-lyubomu-akkauntu-bez-autentifikaczii","title":{"rendered":"A phpBB vulnerability allows access to any account without authentication","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

A vulnerability has been discovered in the free forum creation engine phpBB, allowing attackers to connect to any forum user's session by sending a single HTTP request. The vulnerability is present in the default configuration of phpBB. The issue has been fixed in phpBB version 3.3.17.<\/p>\n

Attacking regular users can lead to access to private messages and the ability to send messages on behalf of the user. For moderators and administrators, it is possible to delete others' messages and view IP address<\/a> and email, read private messages, but it is not possible to access the admin interface or gain access to the host. <\/p>\n

A sebezhet\u0151s\u00e9gr\u0151l nincsenek r\u00e9szletek, de az AI seg\u00edts\u00e9g\u00e9vel, a jav\u00edt\u00e1s alapj\u00e1n \u00fajb\u00f3l reproduk\u00e1lt\u00e1k a kihaszn\u00e1l\u00e1si m\u00f3dszert, amely a «login_link» handlerhez val\u00f3 hozz\u00e1f\u00e9r\u00e9s alapj\u00e1n m\u0171k\u00f6dik, az «auth_provider=apache» autentik\u00e1l\u00e1si m\u00f3dszer be\u00e1ll\u00edt\u00e1s\u00e1val, \u00e9s a login Basic Auth t\u00e1pl\u00e1l\u00e1s\u00e1val, ezut\u00e1n a PHP be\u00e1ll\u00edtja a «PHP_AUTH_USER=login» k\u00f6rnyezeti v\u00e1ltoz\u00f3t, m\u00edg a phpBB kinyeri bel\u0151le a felhaszn\u00e1l\u00f3n\u00e9v\u00e9t jelsz\u00f3 ellen\u0151rz\u00e9se n\u00e9lk\u00fcl. P\u00e9ld\u00e1ul a felhaszn\u00e1l\u00f3 admin session azonos\u00edt\u00f3j\u00e1nak megszerz\u00e9s\u00e9hez, \u00e9s annak f\u00e1jlba val\u00f3 ment\u00e9s\u00e9hez cookies.txt n\u00e9ven, a k\u00f6vetkez\u0151 k\u00f3dot lehet futtatni:<\/p>\n

curl -i -s \
\n -c cookies.txt \
\n -b cookies.txt \
\n -u ‘admin:b\u00e1rmi’ \
\n -d ‘login=Bejelentkez\u00e9s&login_username=admin&login_password=b\u00e1rmi’ \
\n ‘https:\/\/target.example\/forum\/ucp.php?mode=login_link&auth_provider=apache&login_link_any=1’
\n
Forr\u00e1s: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

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\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u0435\u043b\u044f. \u041f\u0440\u0438 \u0430\u0442\u0430\u043a\u0435 \u043d\u0430 \u043c\u043e\u0434\u0435\u0440\u0430\u0442\u043e\u0440\u043e\u0432 […]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":8,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-182030","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\udd47A vulnerability in phpBB allowing access to any account without authentication | ProHoster","description":"A vulnerability has been discovered in the free forum creation engine phpBB, allowing attackers to connect to any 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