{"id":106390,"date":"2023-01-19T00:48:17","date_gmt":"2023-01-18T22:48:17","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/vypusk-sistemy-izolyaczii-prilozhenij-firejail-0-9-72"},"modified":"2023-01-19T00:48:17","modified_gmt":"2023-01-18T22:48:17","slug":"vypusk-sistemy-izolyaczii-prilozhenij-firejail-0-9-72","status":"publish","type":"post","link":"https:\/\/prohoster.info\/cs\/blog\/news\/vypusk-sistemy-izolyaczii-prilozhenij-firejail-0-9-72","title":{"rendered":"Vyd\u00e1n\u00ed syst\u00e9mu izolace aplikac\u00ed Firejail 0.9.72","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Bylo vyd\u00e1no nov\u00e9 vyd\u00e1n\u00ed projektu Firejail 0.9.72, kter\u00fd vyv\u00edj\u00ed syst\u00e9m pro izolovan\u00e9 spou\u0161t\u011bn\u00ed grafick\u00fdch, konzolov\u00fdch a serverov\u00fdch aplikac\u00ed, co\u017e umo\u017e\u0148uje minimalizovat riziko kompromitace hlavn\u00edho syst\u00e9mu p\u0159i spu\u0161t\u011bn\u00ed ned\u016fv\u011bryhodn\u00fdch nebo potenci\u00e1ln\u011b zraniteln\u00fdch program\u016f. Program je naps\u00e1n v jazyce C, distribuuje se pod licenc\u00ed GPLv2 a m\u016f\u017ee fungovat v jak\u00e9koliv distribuci Linuxu s j\u00e1drem star\u0161\u00edm ne\u017e 3.0. Hotov\u00e9 bal\u00ed\u010dky s Firejail byly p\u0159ipraveny ve form\u00e1tech deb (Debian, Ubuntu) a rpm (CentOS, Fedora).      <\/p>\n<p>Pro izolaci v Firejail se pou\u017e\u00edvaj\u00ed prostory jmen (namespaces), AppArmor a filtrov\u00e1n\u00ed syst\u00e9mov\u00fdch vol\u00e1n\u00ed (seccomp-bpf) v Linuxu. Po spu\u0161t\u011bn\u00ed program a v\u0161echny jej\u00ed potomkov\u00e9 procesy pou\u017e\u00edvaj\u00ed odd\u011blen\u00e1 zobrazen\u00ed prost\u0159edk\u016f j\u00e1dra, jako jsou s\u00ed\u0165ov\u00fd z\u00e1sobn\u00edk, tabulka proces\u016f a body p\u0159ipojen\u00ed. Vz\u00e1jemn\u011b z\u00e1visl\u00e9 aplikace lze spojit do jednoho spole\u010dn\u00e9ho sandboxu. Pokud si p\u0159ejete, m\u016f\u017eete Firejail pou\u017e\u00edt i pro spou\u0161t\u011bn\u00ed kontejner\u016f Docker, LXC a OpenVZ.     <\/p>\n<p>Na rozd\u00edl od n\u00e1stroj\u016f pro kontejnerovou izolaci je firejail mimo\u0159\u00e1dn\u011b jednoduch\u00fd na konfiguraci a nevy\u017eaduje p\u0159\u00edpravu syst\u00e9mov\u00e9ho obrazu \u2014 slo\u017een\u00ed kontejneru je vytv\u00e1\u0159eno za b\u011bhu na z\u00e1klad\u011b obsahu aktu\u00e1ln\u00edho souborov\u00e9ho syst\u00e9mu a je odstran\u011bno po dokon\u010den\u00ed pr\u00e1ce aplikace. Nab\u00edz\u00ed flexibiln\u00ed prost\u0159edky pro stanoven\u00ed pravidel p\u0159\u00edstupu k souborov\u00e9mu syst\u00e9mu, kde m\u016f\u017eete ur\u010dit, ke kter\u00fdm soubor\u016fm a adres\u00e1\u0159\u016fm je povolen nebo zak\u00e1z\u00e1n p\u0159\u00edstup, p\u0159ipojit pro data do\u010dasn\u00e9 souborov\u00e9 syst\u00e9my (tmpfs), omezit p\u0159\u00edstup k soubor\u016fm nebo adres\u00e1\u0159\u016fm pouze pro \u010dten\u00ed, propojit adres\u00e1\u0159e pomoc\u00ed bind-mount a overlayfs.      <\/p>\n<p>Pro velk\u00e9 mno\u017estv\u00ed popul\u00e1rn\u00edch aplikac\u00ed, v\u010detn\u011b Firefoxu, Chromu, VLC a Transmission, byly p\u0159ipraveny hotov\u00e9 profily pro izolaci syst\u00e9mov\u00fdch vol\u00e1n\u00ed. K z\u00edsk\u00e1n\u00ed pot\u0159ebn\u00fdch opr\u00e1vn\u011bn\u00ed k nastaven\u00ed izolovan\u00e9ho prost\u0159ed\u00ed je spustiteln\u00fd soubor firejail instalov\u00e1n s flagem SUID root (po inicializaci jsou opr\u00e1vn\u011bn\u00ed zru\u0161ena). Pro spu\u0161t\u011bn\u00ed programu v izolovan\u00e9m re\u017eimu sta\u010d\u00ed uv\u00e9st n\u00e1zev aplikace jako argument n\u00e1stroje firejail, nap\u0159\u00edklad \u201efirejail firefox\u201c nebo \u201esudo firejail \/etc\/init.d\/nginx start\u201c.   <\/p>\n<p>V nov\u00e9m vyd\u00e1n\u00ed:  <\/p>\n<ul>\n<li class=\"l\"> Byl p\u0159id\u00e1n seccomp filtr syst\u00e9mov\u00fdch vol\u00e1n\u00ed, kter\u00fd blokuje vytv\u00e1\u0159en\u00ed prostor\u016f jmen (pro povolen\u00ed byla p\u0159id\u00e1na mo\u017enost \u201e\u2014restrict-namespaces\u201c). Byly aktualizov\u00e1ny tabulky syst\u00e9mov\u00fdch vol\u00e1n\u00ed a skupiny seccomp.\n<li class=\"l\"> Byl vylep\u0161en re\u017eim force-nonewprivs (NO_NEW_PRIVS), kter\u00fd zakazuje z\u00edsk\u00e1v\u00e1n\u00ed dodate\u010dn\u00fdch privilegi\u00ed v nov\u00fdch procesech.\n<li class=\"l\"> Byla p\u0159id\u00e1na mo\u017enost pou\u017eit\u00ed vlastn\u00edch profil\u016f AppArmor (pro p\u0159ipojen\u00ed byla navr\u017eena mo\u017enost \u201e\u2014apparmor\u201c).\n<li class=\"l\"> V syst\u00e9mu sledov\u00e1n\u00ed s\u00ed\u0165ov\u00e9ho provozu nettrace, kter\u00fd zobrazuje informace o IP a intenzit\u011b provozu z ka\u017ed\u00e9 adresy, byla implementov\u00e1na podpora ICMP a byly navr\u017eeny mo\u017enosti \u201e\u2014dnstrace\u201c, \u201e\u2014icmptrace\u201c a \u201e\u2014snitrace\u201c.\n<li class=\"l\"> Byly odstran\u011bny p\u0159\u00edkazy \u201e\u2014cgroup\u201c a \u201e\u2014shell\u201c (v\u00fdchoz\u00ed nastaven\u00ed je \u201e\u2014shell=none\u201c). V\u00fdchoz\u00ed nastaven\u00ed ukon\u010duje sestaven\u00ed firetunnel. Byly deaktivov\u00e1ny volby chroot, private-lib a tracelog v \/etc\/firejail\/firejail.config. Podpora grsecurity byla ukon\u010dena.      <\/ul>\n<p>Zdroj: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=58493\">opennet.ru<\/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 \u0440\u0435\u043b\u0438\u0437 \u043f\u0440\u043e\u0435\u043a\u0442\u0430 Firejail 0.9.72, \u0440\u0430\u0437\u0432\u0438\u0432\u0430\u044e\u0449\u0435\u0433\u043e \u0441\u0438\u0441\u0442\u0435\u043c\u0443 \u0434\u043b\u044f \u0438\u0437\u043e\u043b\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u043e\u0433\u043e \u0432\u044b\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u044f \u0433\u0440\u0430\u0444\u0438\u0447\u0435\u0441\u043a\u0438\u0445, \u043a\u043e\u043d\u0441\u043e\u043b\u044c\u043d\u044b\u0445 \u0438 \u0441\u0435\u0440\u0432\u0435\u0440\u043d\u044b\u0445 \u043f\u0440\u0438\u043b\u043e\u0436\u0435\u043d\u0438\u0439, \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0443\u044e \u043c\u0438\u043d\u0438\u043c\u0438\u0437\u0438\u0440\u043e\u0432\u0430\u0442\u044c \u0440\u0438\u0441\u043a \u043a\u043e\u043c\u043f\u0440\u043e\u043c\u0435\u0442\u0430\u0446\u0438\u0438 \u043e\u0441\u043d\u043e\u0432\u043d\u043e\u0439 \u0441\u0438\u0441\u0442\u0435\u043c\u044b \u043f\u0440\u0438 \u0437\u0430\u043f\u0443\u0441\u043a\u0435 \u043d\u0435 \u0437\u0430\u0441\u043b\u0443\u0436\u0438\u0432\u0430\u044e\u0449\u0438\u0445 \u0434\u043e\u0432\u0435\u0440\u0438\u044f \u0438\u043b\u0438 \u043f\u043e\u0442\u0435\u043d\u0446\u0438\u0430\u043b\u044c\u043d\u043e \u0443\u044f\u0437\u0432\u0438\u043c\u044b\u0445 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c. \u041f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u0430 \u043d\u0430\u043f\u0438\u0441\u0430\u043d\u0430 \u043d\u0430 \u044f\u0437\u044b\u043a\u0435 \u0421\u0438, \u0440\u0430\u0441\u043f\u0440\u043e\u0441\u0442\u0440\u0430\u043d\u044f\u0435\u0442\u0441\u044f \u043f\u043e\u0434 \u043b\u0438\u0446\u0435\u043d\u0437\u0438\u0435\u0439 GPLv2 \u0438 \u043c\u043e\u0436\u0435\u0442 \u0440\u0430\u0431\u043e\u0442\u0430\u0442\u044c \u0432 \u043b\u044e\u0431\u043e\u043c \u0434\u0438\u0441\u0442\u0440\u0438\u0431\u0443\u0442\u0438\u0432\u0435 Linux \u0441 \u044f\u0434\u0440\u043e\u043c \u0441\u0442\u0430\u0440\u0448\u0435 3.0. \u0413\u043e\u0442\u043e\u0432\u044b\u0435 \u043f\u0430\u043a\u0435\u0442\u044b \u0441 Firejail \u043f\u043e\u0434\u0433\u043e\u0442\u043e\u0432\u043b\u0435\u043d\u044b [&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-106390","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 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