{"id":122970,"date":"2025-03-25T10:22:49","date_gmt":"2025-03-25T08:22:49","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/proekt-landrun-razvivaet-neprivilegirovannuyu-sistemu-izolyaczii-prilozhenij"},"modified":"2025-03-25T10:22:49","modified_gmt":"2025-03-25T08:22:49","slug":"proekt-landrun-razvivaet-neprivilegirovannuyu-sistemu-izolyaczii-prilozhenij","status":"publish","type":"post","link":"https:\/\/prohoster.info\/da\/blog\/news\/proekt-landrun-razvivaet-neprivilegirovannuyu-sistemu-izolyaczii-prilozhenij","title":{"rendered":"The Landrun project develops a non-privileged application isolation system.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Projektet Landrun har startet udviklingen af et nyt system til isoleret udf\u00f8relse af individuelle applikationer. Til isoleringen anvendes LSM-modulet i Linux-kernen Landlock, som g\u00f8r det muligt at undg\u00e5 udf\u00f8relse af privilegerede operationer under oprettelsen af et sandbox-milj\u00f8. I forhold til sine funktioner ligner Landrun v\u00e6rkt\u00f8jet Firejail, men adskiller sig ved en lettere implementering, lav v\u00e6gt og muligheden for at arbejde under en almindelig ikke-privilegeret bruger uden at skulle k\u00f8re med suid-flaget. Projektets kode er skrevet i Go og distribueres under GPLv2-licensen. <\/p>\n

Landlock-mekanismen g\u00f8r det muligt for ikke-privilegerede programmer at begr\u00e6nse brugen af Linux-kernelobjekter, s\u00e5som filhierarkier, netv\u00e6rkssokler og ioctl. I mods\u00e6tning til navnerum og filtrering af systemopkald dannes det isolerede milj\u00f8 af Linux-kernen i form af et ekstra lag over de eksisterende systemmekanismer til adgangskontrol. For at interagere med Landlock-subsystemet anvendes go-landlock-biblioteket fra udviklerne af LandLock i landrun-v\u00e6rkt\u00f8jet. <\/p>\n

Landrun reducerer risikoen for kompromittering af det prim\u00e6re system, n\u00e5r der k\u00f8res up\u00e5lidelige eller potentielt s\u00e5rbare programmer. Blandt funktionerne bem\u00e6rkes underst\u00f8ttelse af selektiv begr\u00e6nsning af adgang p\u00e5 niveau med enkelte kataloger, binding af rettigheder til filstier (tilladelse eller forbud mod l\u00e6sning, skrivning og udf\u00f8relse) samt kontrol over initiationen og modtagelse af TCP-forbindelser. <\/p>\n

For eksempel kan Landrun-processen forbyde k\u00f8rsel af eksekverbare filer, tillade skrivning kun til en specifik undermappe til data, forbyde oprettelse af lytte-sokker til at modtage netv\u00e6rksforbindelser og tillade udsendelse af netv\u00e6rksanmodninger kun til angivne TCP-porte. I det enkleste tilf\u00e6lde kan programmet udf\u00f8res med kommandoen 'landrun \u2014ro \/', og for at isolere nginx kan man bruge: landrun \u2014rox \/usr\/bin \u2014ro \/lib,\/lib64,\/var\/www \u2014rwx \/var\/log \u2014bind-tcp 80,443 \/usr\/bin\/nginx <\/p>\n

Fremtidige planer n\u00e6vner udvidet adgangsstyring til filsystemet, st\u00f8tte til UDP og ressourceh\u00e5ndtering af processer. For at begr\u00e6nse adgangen p\u00e5 filsystemniveau kr\u00e6ves der mindst Linux-kernen 5.13, og for netv\u00e6rksbegr\u00e6nsninger \u2014 6.8. <\/p>\n

Det kan desuden n\u00e6vnes, at der allerede er blevet foretaget \u00e6ndringer i Firejail's kodebase, der muligg\u00f8r brugen af Landlock-kernens under-system til isolation uden suid-bit og forh\u00f8jede privilegier, men udgivelsen med denne support er endnu ikke offentliggjort.
\n
Kilde: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u041f\u0440\u043e\u0435\u043a\u0442 Landrun \u043d\u0430\u0447\u0430\u043b \u0440\u0430\u0437\u0432\u0438\u0442\u0438\u0435 \u043d\u043e\u0432\u043e\u0439 \u0441\u0438\u0441\u0442\u0435\u043c\u044b \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 \u043e\u0442\u0434\u0435\u043b\u044c\u043d\u044b\u0445 \u043f\u0440\u0438\u043b\u043e\u0436\u0435\u043d\u0438\u0439. \u0414\u043b\u044f \u0438\u0437\u043e\u043b\u044f\u0446\u0438\u0438 \u0437\u0430\u0434\u0435\u0439\u0441\u0442\u0432\u043e\u0432\u0430\u043d LSM-\u043c\u043e\u0434\u0443\u043b\u044c \u044f\u0434\u0440\u0430 Linux Landlock, \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0438\u0439 \u043e\u0431\u043e\u0439\u0442\u0438\u0441\u044c \u0431\u0435\u0437 \u0432\u044b\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u044f \u043f\u0440\u0438\u0432\u0438\u043b\u0435\u0433\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u044b\u0445 \u043e\u043f\u0435\u0440\u0430\u0446\u0438\u0439 \u0432\u043e \u0432\u0440\u0435\u043c\u044f \u0441\u043e\u0437\u0434\u0430\u043d\u0438\u044f sandbox-\u043e\u043a\u0440\u0443\u0436\u0435\u043d\u0438\u044f. \u041f\u043e \u0441\u0432\u043e\u0438\u043c \u0437\u0430\u0434\u0430\u0447\u0430\u043c Landrun \u0431\u043b\u0438\u0437\u043e\u043a \u043a \u0443\u0442\u0438\u043b\u0438\u0442\u0435 Firejail, \u043d\u043e \u043e\u0442\u043b\u0438\u0447\u0430\u0435\u0442\u0441\u044f \u0431\u043e\u043b\u0435\u0435 \u043f\u0440\u043e\u0441\u0442\u043e\u0439 \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0435\u0439, \u043b\u0435\u0433\u043a\u043e\u0432\u0435\u0441\u043d\u043e\u0441\u0442\u044c\u044e \u0438 \u0432\u043e\u0437\u043c\u043e\u0436\u043d\u043e\u0441\u0442\u044c\u044e \u0440\u0430\u0431\u043e\u0442\u044b \u043f\u043e\u0434 \u043e\u0431\u044b\u0447\u043d\u044b\u043c \u043d\u0435\u043f\u0440\u0438\u0432\u0438\u043b\u0435\u0433\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u044b\u043c \u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u0435\u043b\u0435\u043c \u0431\u0435\u0437 \u043f\u043e\u0441\u0442\u0430\u0432\u043a\u0438 \u0441 \u0444\u043b\u0430\u0433\u043e\u043c suid. \u041a\u043e\u0434 […]<\/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-122970","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\udd47Landrun-projektet udvikler et uh\u00e6vet isolationssystem for applikationer | 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