{"id":103151,"date":"2022-01-31T21:36:52","date_gmt":"2022-01-31T19:36:52","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/udalyonnaya-root-uyazvimost-v-samba"},"modified":"2022-01-31T21:36:52","modified_gmt":"2022-01-31T19:36:52","slug":"udalyonnaya-root-uyazvimost-v-samba","status":"publish","type":"post","link":"https:\/\/prohoster.info\/lv\/blog\/news\/udalyonnaya-root-uyazvimost-v-samba","title":{"rendered":"Att\u0101l\u0101 root-vain\u012bba Samba","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Public\u0113ti labojumi pakotn\u0113m 4.15.5, 4.14.12 un 4.13.17, nov\u0113r\u0161ot 3 ievainojam\u012bbas. Visb\u012bstam\u0101k\u0101 ievainojam\u012bba (CVE-2021-44142) \u013cauj att\u0101lin\u0101tam uzbruc\u0113jam izpild\u012bt patva\u013c\u012bgu kodu ar root ties\u012bb\u0101m sist\u0113m\u0101 ar ievainojamu Samba versiju. Probl\u0113mai pie\u0161\u0137irts b\u012bstam\u012bbas l\u012bmenis 9.9 no 10.    <\/p>\n<p>Ievainojam\u012bba izpau\u017eas tikai, izmantojot VFS-moduli vfs_fruit ar noklus\u0113juma parametriem (fruit:metadata=netatalk vai fruit:resource=file), nodro\u0161inot papildu sader\u012bbas l\u012bmeni ar mac OS klientiem un uzlabojot p\u0101rnesam\u012bbu ar failiem. <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/lv\/server\/dts-dusseldorf\/\"   title=\"serveriem\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"3448\">serveriem<\/a> Netatalk 3 AFP. Probl\u0113ma izriet no bufera p\u0101rpildes metadatu anal\u012bzes kod\u0101 ar papla\u0161in\u0101taj\u0101m atrib\u016bt\u0101m (EA, xattr), kas tiek izsaukta failu atv\u0113r\u0161anas laik\u0101 smbd. Lai veiktu uzbrukumu, lietot\u0101jam j\u0101b\u016bt rakst\u012b\u0161anas piek\u013cuvei papla\u0161in\u0101tajiem faila atrib\u016btiem, un uzbrukumu var veikt ar\u012b vieslietot\u0101js, ja tam ir at\u013cauta \u0161\u0101da rakst\u012b\u0161ana.          <\/p>\n<p>Paketu atjaunin\u0101jumu izlaidumus var izsekot lap\u0101s: Debian, Ubuntu, RHEL, SUSE, Fedora, Arch, FreeBSD. K\u0101 aizsardz\u012bbas apvedce\u013cu var no saraksta &#171;vfs objects&#187; fail\u0101 smb.conf iz\u0146emt moduli &#171;fruit&#187;.      <\/p>\n<p>P\u0101r\u0113j\u0101s divas ievainojam\u012bbas:  <\/p>\n<ul>\n<li class=\"l\"> Ievainojam\u012bba CVE-2022-0336 \u013cauj Samba AD DC lietot\u0101jam izsist sevi par citu pakalpojumu un organiz\u0113t uztveri par trafiku, kas adres\u0113ts \u0161im pakalpojumam. Lai veiktu uzbrukumu, lietot\u0101jam j\u0101b\u016bt ties\u012bb\u0101m main\u012bt servicePrincipalName atrib\u016btu  kont\u0101.\n<li class=\"l\"> Ievainojam\u012bba CVE-2021-44141 var novest pie inform\u0101cijas nopl\u016bdes par failu un katalogu eksistenci failu sist\u0113m\u0101 \u0101rpus eksport\u0113t\u0101 Samba apjoma. Uzbrukums tiek veikts, manipul\u0113jot ar simboliskaj\u0101m sait\u0113m.  <\/ul>\n<p>Avots: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=56615\">opennet.lv<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d\u044b \u043a\u043e\u0440\u0440\u0435\u043a\u0442\u0438\u0440\u0443\u044e\u0449\u0438\u0435 \u0432\u044b\u043f\u0443\u0441\u043a\u0438 \u043f\u0430\u043a\u0435\u0442\u0430 4.15.5, 4.14.12 \u0438 4.13.17 \u0441 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u0435\u043c 3 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0435\u0439. \u041d\u0430\u0438\u0431\u043e\u043b\u0435\u0435 \u043e\u043f\u0430\u0441\u043d\u0430\u044f \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c (CVE-2021-44142) \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u0435\u0442 \u0443\u0434\u0430\u043b\u0451\u043d\u043d\u043e\u043c\u0443 \u0430\u0442\u0430\u043a\u0443\u044e\u0449\u0435\u043c\u0443 \u0432\u044b\u043f\u043e\u043b\u043d\u0438\u0442\u044c \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u043b\u044c\u043d\u044b\u0439 \u043a\u043e\u0434 \u0441 \u043f\u0440\u0430\u0432\u0430\u043c\u0438 root \u043d\u0430 \u0441\u0438\u0441\u0442\u0435\u043c\u0435 \u0441 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0439 \u0432\u0435\u0440\u0441\u0438\u0435\u0439 Samba. \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 9.9 \u0438\u0437 10. \u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u043f\u0440\u043e\u044f\u0432\u043b\u044f\u0435\u0442\u0441\u044f \u0442\u043e\u043b\u044c\u043a\u043e \u043f\u0440\u0438 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0438 VFS-\u043c\u043e\u0434\u0443\u043b\u044f vfs_fruit \u0441 \u043f\u0430\u0440\u0430\u043c\u0435\u0442\u0440\u0430\u043c\u0438 \u043f\u043e \u0443\u043c\u043e\u043b\u0447\u0430\u043d\u0438\u044e (fruit:metadata=netatalk \u0438\u043b\u0438 fruit:resource=file), \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0438\u0432\u0430\u044e\u0449\u0435\u0433\u043e \u0434\u043e\u043f\u043e\u043b\u043d\u0438\u0442\u0435\u043b\u044c\u043d\u044b\u0439 \u0443\u0440\u043e\u0432\u0435\u043d\u044c [&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-103151","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.5 - aioseo.com -->\n\t<meta name=\"description\" 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