{"id":105610,"date":"2022-11-17T15:36:49","date_gmt":"2022-11-17T13:36:49","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/kriticheskie-uyazvimosti-v-netatalk-privodyashhie-k-udalyonnomu-vypolneniyu-koda"},"modified":"2022-11-17T15:36:49","modified_gmt":"2022-11-17T13:36:49","slug":"kriticheskie-uyazvimosti-v-netatalk-privodyashhie-k-udalyonnomu-vypolneniyu-koda","status":"publish","type":"post","link":"https:\/\/prohoster.info\/cs\/blog\/news\/kriticheskie-uyazvimosti-v-netatalk-privodyashhie-k-udalyonnomu-vypolneniyu-koda","title":{"rendered":"Kritick\u00e9 zranitelnosti v Netatalk vedouc\u00ed k vzd\u00e1len\u00e9mu proveden\u00ed k\u00f3du","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>V Netatalk, serveru s implementac\u00ed s\u00ed\u0165ov\u00fdch protokol\u016f AppleTalk a Apple Filing Protocol (AFP), bylo zji\u0161t\u011bno \u0161est vzd\u00e1len\u011b zneu\u017eiteln\u00fdch zranitelnost\u00ed, kter\u00e9 umo\u017e\u0148uj\u00ed spu\u0161t\u011bn\u00ed vlastn\u00edho k\u00f3du s pr\u00e1vy root prost\u0159ednictv\u00edm odes\u00edl\u00e1n\u00ed speci\u00e1ln\u011b form\u00e1tovan\u00fdch paket\u016f. Netatalk je pou\u017e\u00edv\u00e1n mnoha v\u00fdrobci za\u0159\u00edzen\u00ed pro ukl\u00e1d\u00e1n\u00ed dat (NAS) k zaji\u0161t\u011bn\u00ed v\u00fdm\u011bny soubor\u016f a organizaci p\u0159\u00edstupu k tisk\u00e1rn\u00e1m z po\u010d\u00edta\u010d\u016f Apple, nap\u0159\u00edklad byl pou\u017e\u00edv\u00e1n v za\u0159\u00edzen\u00edch Western Digital (probl\u00e9m byl vy\u0159e\u0161en odstran\u011bn\u00edm Netatalk z firmwaru WD). Netatalk je tak\u00e9 sou\u010d\u00e1st\u00ed mnoha distribuc\u00ed, v\u010detn\u011b OpenWRT (od verze OpenWrt 22.03 odstran\u011bn), Debian, Ubuntu, SUSE, Fedora a FreeBSD, ale nen\u00ed pou\u017e\u00edv\u00e1n ve v\u00fdchoz\u00edm nastaven\u00ed. Probl\u00e9my byly odstran\u011bny ve verzi Netatalk 3.1.13.    <\/p>\n<p>Identifikovan\u00e9 probl\u00e9my:  <\/p>\n<ul>\n<li class=\"l\"> CVE-2022-0194 \u2014 nedostatek spr\u00e1vn\u00e9 kontroly velikosti extern\u00edch dat ve funkci ad_addcomment(), p\u0159ed kop\u00edrov\u00e1n\u00edm do pevn\u00e9ho bufferu. Zranitelnost umo\u017e\u0148uje vzd\u00e1len\u00e9mu \u00fato\u010dn\u00edkovi bez autentizace z\u00edskat mo\u017enost spu\u0161t\u011bn\u00ed sv\u00e9ho k\u00f3du s pr\u00e1vy root.\n<li class=\"l\"> CVE-2022-23121 \u2014 nespr\u00e1vn\u00e9 zpracov\u00e1n\u00ed chyb ve funkci parse_entries(), kter\u00e9 nast\u00e1v\u00e1 p\u0159i anal\u00fdze z\u00e1znam\u016f AppleDouble. Zranitelnost umo\u017e\u0148uje vzd\u00e1len\u00e9mu \u00fato\u010dn\u00edkovi bez autentizace z\u00edskat mo\u017enost spu\u0161t\u011bn\u00ed sv\u00e9ho k\u00f3du s pr\u00e1vy root.\n<li class=\"l\"> CVE-2022-23122 \u2014 nedostatek spr\u00e1vn\u00e9 kontroly velikosti extern\u00edch dat ve funkci setfilparams(), p\u0159ed jejich kop\u00edrov\u00e1n\u00edm do pevn\u00e9ho bufferu. Zranitelnost umo\u017e\u0148uje vzd\u00e1len\u00e9mu \u00fato\u010dn\u00edkovi bez autentizace z\u00edskat mo\u017enost spu\u0161t\u011bn\u00ed sv\u00e9ho k\u00f3du s pr\u00e1vy root.\n<li class=\"l\"> CVE-2022-23124 \u2014 nedostatek spr\u00e1vn\u00e9 kontroly vstupn\u00edch dat v metod\u011b get_finderinfo(), co\u017e vede ke \u010dten\u00ed z oblasti mimo vyhrazen\u00fd buffer. Zranitelnost umo\u017e\u0148uje vzd\u00e1len\u00e9mu \u00fato\u010dn\u00edkovi bez autentizace zp\u016fsobit \u00fanik informac\u00ed z pam\u011bti procesu. V kombinaci s dal\u0161\u00edmi zranitelnostmi m\u016f\u017ee b\u00fdt chyba tak\u00e9 vyu\u017eita k proveden\u00ed k\u00f3du s pr\u00e1vy root.\n<li class=\"l\"> CVE-2022-23125 \u2014 nedostatek kontroly velikosti p\u0159i anal\u00fdze prvku \u201elen\u201c ve funkci copyapplfile(), p\u0159ed kop\u00edrov\u00e1n\u00edm dat do pevn\u00e9ho bufferu. Zranitelnost umo\u017e\u0148uje vzd\u00e1len\u00e9mu \u00fato\u010dn\u00edkovi bez autentizace z\u00edskat mo\u017enost spu\u0161t\u011bn\u00ed sv\u00e9ho k\u00f3du s pr\u00e1vy root.\n<li class=\"l\"> CVE-2022-23123 \u2014 nedostatek kontroly p\u0159\u00edchoz\u00edch extern\u00edch dat v metod\u011b getdirparams(), co\u017e vede ke \u010dten\u00ed z oblasti mimo vyhrazen\u00fd buffer. Zranitelnost umo\u017e\u0148uje vzd\u00e1len\u00e9mu \u00fato\u010dn\u00edkovi bez autentizace zp\u016fsobit \u00fanik informac\u00ed z pam\u011bti procesu.       <\/ul>\n<p>Zdroj: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=58129\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0412 Netatalk, \u0441\u0435\u0440\u0432\u0435\u0440\u0435 \u0441 \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0435\u0439 \u0441\u0435\u0442\u0435\u0432\u044b\u0445 \u043f\u0440\u043e\u0442\u043e\u043a\u043e\u043b\u043e\u0432 AppleTalk \u0438 Apple Filing Protocol (AFP), \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u043e \u0448\u0435\u0441\u0442\u044c \u0443\u0434\u0430\u043b\u0451\u043d\u043d\u043e \u044d\u043a\u0441\u043f\u043b\u0443\u0430\u0442\u0438\u0440\u0443\u0435\u043c\u044b\u0445 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0435\u0439, \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0438\u0445 \u043e\u0440\u0433\u0430\u043d\u0438\u0437\u043e\u0432\u0430\u0442\u044c \u0432\u044b\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u0435 \u0441\u0432\u043e\u0435\u0433\u043e \u043a\u043e\u0434\u0430 \u0441 \u043f\u0440\u0430\u0432\u0430\u043c\u0438 root \u0447\u0435\u0440\u0435\u0437 \u043e\u0442\u043f\u0440\u0430\u0432\u043a\u0443 \u0441\u043f\u0435\u0446\u0438\u0430\u043b\u044c\u043d\u043e \u043e\u0444\u043e\u0440\u043c\u043b\u0435\u043d\u043d\u044b\u0445 \u043f\u0430\u043a\u0435\u0442\u043e\u0432. Netatalk \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u0435\u0442\u0441\u044f \u043c\u043d\u043e\u0433\u0438\u043c\u0438 \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u044f\u043c\u0438 \u0443\u0441\u0442\u0440\u043e\u0439\u0441\u0442\u0432 \u0445\u0440\u0430\u043d\u0435\u043d\u0438\u044f \u0434\u0430\u043d\u043d\u044b\u0445 (NAS) \u0434\u043b\u044f \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0435\u043d\u0438\u044f \u043e\u0431\u043c\u0435\u043d\u0430 \u0444\u0430\u0439\u043b\u0430\u043c\u0438 \u0438 \u043e\u0440\u0433\u0430\u043d\u0438\u0437\u0430\u0446\u0438\u0438 \u0434\u043e\u0441\u0442\u0443\u043f\u0430 \u043a \u043f\u0440\u0438\u043d\u0442\u0435\u0440\u0430\u043c c \u043a\u043e\u043c\u043f\u044c\u044e\u0442\u0435\u0440\u043e\u0432 Apple, \u043d\u0430\u043f\u0440\u0438\u043c\u0435\u0440, \u043f\u0440\u0438\u043c\u0435\u043d\u044f\u043b\u0441\u044f \u0432 \u0443\u0441\u0442\u0440\u043e\u0439\u0441\u0442\u0432\u0430\u0445 [&hellip;]<\/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-105610","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.3 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u0412 Netatalk, \u0441\u0435\u0440\u0432\u0435\u0440\u0435 \u0441 \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0435\u0439 \u0441\u0435\u0442\u0435\u0432\u044b\u0445 \u043f\u0440\u043e\u0442\u043e\u043a\u043e\u043b\u043e\u0432 AppleTalk \u0438 Apple Filing Protocol (AFP), \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u043e \u0448\u0435\u0441\u0442\u044c \u0443\u0434\u0430\u043b\u0451\u043d\u043d\u043e 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