{"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\/sv\/blog\/news\/kriticheskaya-uyazvimost-v-proftpd","title":{"rendered":"Kritisk s\u00e5rbarhet i ProFTPd","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

I ftp-server ProFTPD uppt\u00e4cktes<\/a><\/noindex> farlig s\u00e5rbarhet (CVE-2019-12815<\/a><\/noindex>), som g\u00f6r det m\u00f6jligt att kopiera filer inom servern utan att genomf\u00f6ra autentisering med kommandona «site cpfr» och «site cpto». Problemet tilldelats<\/a><\/noindex> har en allvarlighetsgrad p\u00e5 9.8 av 10, eftersom det kan anv\u00e4ndas f\u00f6r att organisera fj\u00e4rrk\u00f6rning av kod genom att ge anonym \u00e5tkomst till FTP.<\/p>\n

S\u00e5rbarhet orsakas<\/a><\/noindex> genom felaktig kontroll av \u00e5tkomstr\u00e4ttigheter f\u00f6r l\u00e4sning och skrivning av data (Limit READ och Limit WRITE) i modulen mod_copy, som \u00e4r aktiverad som standard och ing\u00e5r i proftpd-paketen f\u00f6r de flesta distributioner. Det \u00e4r v\u00e4rt att notera att s\u00e5rbarheten \u00e4r ett resultat av en liknande tidigare fr\u00e5ga som inte helt \u00e5tg\u00e4rdats, identifierad<\/a><\/noindex> 2015, f\u00f6r vilken nya attackvektorer nu har identifierats. Dessutom rapporterades problemet till utvecklarna redan i september f\u00f6rra \u00e5ret, men patchen var f\u00f6rberedd<\/a><\/noindex> f\u00f6rst f\u00f6r n\u00e5gra dagar sedan.<\/p>\n

Problemet upptr\u00e4der \u00e4ven i de senaste aktuella versionerna av ProFTPd 1.3.6 och 1.3.5d. En l\u00f6sning \u00e4r tillg\u00e4nglig i form av en patch<\/a><\/noindex>. F\u00f6r att skydda sig rekommenderas det att st\u00e4nga av mod_copy i konfigurationen. S\u00e5rbarheten \u00e4r \u00e4nnu bara \u00e5tg\u00e4rdad i Fedora<\/a><\/noindex> och kvarst\u00e5r ofixad i Debian<\/a><\/noindex>, SUSE\/openSUSE<\/a><\/noindex>, Ubuntu<\/a><\/noindex>, FreeBSD<\/a><\/noindex>, EPEL-7<\/a><\/noindex> (ProFTPD finns inte i huvudlagret f\u00f6r RHEL, och paketet fr\u00e5n EPEL-6 \u00e4r inte s\u00e5rbart eftersom det inte inneh\u00e5ller mod_copy).<\/p>\n

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

K\u00e4lla: 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\udd47Kritisk s\u00e5rbarhet i ProFTPd | ProHoster","description":"I ftp-server ProFTPD har en farlig s\u00e5rbarhet uppt\u00e4ckts (","canonical_url":"https:\/\/prohoster.info\/sv\/blog\/news\/kriticheskaya-uyazvimost-v-proftpd","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":null,"og:locale":"sv_SE","og:site_name":"ProHoster | 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