{"id":36443,"date":"2019-10-31T22:11:40","date_gmt":"2019-10-31T19:11:40","guid":{"rendered":"https:\/\/prohoster.info\/blog\/kriticheskaya-uyazvimost-v-proftpd\/"},"modified":"2019-10-31T22:11:40","modified_gmt":"2019-10-31T19:11:40","slug":"kriticheskaya-uyazvimost-v-proftpd","status":"publish","type":"post","link":"https:\/\/prohoster.info\/cs\/blog\/news\/kriticheskaya-uyazvimost-v-proftpd","title":{"rendered":"Kritick\u00e1 zranitelnost v ProFTPd","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Na FTP serveru ProFTPD byla odhalena<\/a><\/noindex> nebezpe\u010dn\u00e1 zranitelnost (CVE-2019-12815<\/a><\/noindex>), kter\u00e1 umo\u017e\u0148uje kop\u00edrovat soubory v r\u00e1mci serveru bez prov\u00e1d\u011bn\u00ed autentizace pomoc\u00ed p\u0159\u00edkaz\u016f «site cpfr» a «site cpto». Probl\u00e9mu byla p\u0159id\u011blena<\/a><\/noindex> m\u00e1 \u00farove\u0148 nebezpe\u010d\u00ed 9.8 z 10, proto\u017ee m\u016f\u017ee b\u00fdt zneu\u017eita k vzd\u00e1len\u00e9mu spu\u0161t\u011bn\u00ed k\u00f3du p\u0159i poskytnut\u00ed anonymn\u00edho p\u0159\u00edstupu k FTP.<\/p>\n

Zranitelnost byl zp\u016fsoben<\/a><\/noindex> nekorektn\u00ed kontrolou omezen\u00ed p\u0159\u00edstupu pro \u010dten\u00ed a z\u00e1pis dat (Limit READ a Limit WRITE) v modulu mod_copy, kter\u00fd je ve v\u00fdchoz\u00edm nastaven\u00ed pou\u017e\u00edv\u00e1n a zahrnut v bal\u00edc\u00edch pro ProFTPD pro v\u011bt\u0161inu distribuc\u00ed. Je pozoruhodn\u00e9, \u017ee zranitelnost je d\u016fsledkem ne zcela vy\u0159e\u0161en\u00e9ho podobn\u00e9ho probl\u00e9mu, odhalen\u00e9<\/a><\/noindex> v roce 2015, pro kter\u00fd byly nyn\u00ed identifikov\u00e1ny nov\u00e9 \u00fato\u010dn\u00e9 vektory. Nav\u00edc se o probl\u00e9mu v\u00fdvoj\u00e1\u0159\u016fm hl\u00e1silo ji\u017e v z\u00e1\u0159\u00ed lo\u0148sk\u00e9ho roku, ale oprava byla p\u0159ipraven<\/a><\/noindex> a\u017e p\u0159ed n\u011bkolika dny.<\/p>\n

Probl\u00e9m se projevuje tak\u00e9 v posledn\u00edch aktu\u00e1ln\u00edch verz\u00edch ProFTPd 1.3.6 a 1.3.5d. Oprava je k dispozici jako patche<\/a><\/noindex>. Jako alternativn\u00ed opat\u0159en\u00ed se doporu\u010duje vypnout mod_copy v konfiguraci. Zranitelnost byla dosud odstran\u011bna pouze v Fedora<\/a><\/noindex> a z\u016fst\u00e1v\u00e1 neopraven\u00e1 v Debian<\/a><\/noindex>, SUSE\/openSUSE<\/a><\/noindex>, Ubuntu<\/a><\/noindex>, FreeBSD<\/a><\/noindex>, EPEL-7<\/a><\/noindex> (ProFTPD nen\u00ed dod\u00e1v\u00e1n v hlavn\u00edm repozit\u00e1\u0159i RHEL a bal\u00ed\u010dek z EPEL-6 nen\u00ed na probl\u00e9m citliv\u00fd, proto\u017ee neobsahuje mod_copy).<\/p>\n

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

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

\u0412 ftp-\u0441\u0435\u0440\u0432\u0435\u0440\u0435 ProFTPD \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 (CVE-2019-12815), \u043a\u043e\u0442\u043e\u0440\u0430\u044f \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u0435\u0442 \u043a\u043e\u043f\u0438\u0440\u043e\u0432\u0430\u0442\u044c \u0444\u0430\u0439\u043b\u044b \u0432 \u043f\u0440\u0435\u0434\u0435\u043b\u0430\u0445 \u0441\u0435\u0440\u0432\u0435\u0440\u0430 \u0431\u0435\u0437 \u043f\u0440\u043e\u0432\u0435\u0434\u0435\u043d\u0438\u044f \u0430\u0443\u0442\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u0438 \u0441 \u043f\u043e\u043c\u043e\u0449\u044c\u044e \u043a\u043e\u043c\u0430\u043d\u0434 «site cpfr» \u0438 «site cpto». \u041f\u0440\u043e\u0431\u043b\u0435\u043c\u0435 \u043f\u0440\u0438\u0441\u0432\u043e\u0435\u043d \u0443\u0440\u043e\u0432\u0435\u043d\u044c \u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438 9.8 \u0438\u0437 10, \u0442\u0430\u043a \u043a\u0430\u043a \u043e\u043d\u0430 \u043c\u043e\u0436\u0435\u0442 \u043f\u0440\u0438\u043c\u0435\u043d\u044f\u0442\u044c\u0441\u044f \u0434\u043b\u044f \u043e\u0440\u0433\u0430\u043d\u0438\u0437\u0430\u0446\u0438\u0438 \u0443\u0434\u0430\u043b\u0451\u043d\u043d\u043e\u0433\u043e \u0432\u044b\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u044f \u043a\u043e\u0434\u0430 \u043f\u0440\u0438 \u043f\u0440\u0435\u0434\u043e\u0441\u0442\u0430\u0432\u043b\u0435\u043d\u0438\u0438 \u0430\u043d\u043e\u043d\u0438\u043c\u043d\u043e\u0433\u043e \u0434\u043e\u0441\u0442\u0443\u043f\u0430 \u043a FTP. \u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u0432\u044b\u0437\u0432\u0430\u043d\u0430 \u043d\u0435\u043a\u043e\u0440\u0440\u0435\u043a\u0442\u043d\u043e\u0439 \u043f\u0440\u043e\u0432\u0435\u0440\u043a\u043e\u0439 \u043e\u0433\u0440\u0430\u043d\u0438\u0447\u0435\u043d\u0438\u0439 \u0434\u043e\u0441\u0442\u0443\u043f\u0430 \u043d\u0430 […]<\/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-36443","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\udd47Kritick\u00e1 zranitelnost v ProFTPd | ProHoster","description":"Na FTP serveru ProFTPD byla zji\u0161t\u011bna nebezpe\u010dn\u00e1 zranitelnost 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