{"id":77154,"date":"2020-04-08T07:41:59","date_gmt":"2020-04-08T05:41:59","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/microsoft-predlozhil-modul-yadra-linux-dlya-proverki-czelostnosti-sistemy"},"modified":"2020-04-08T07:41:59","modified_gmt":"2020-04-08T05:41:59","slug":"microsoft-predlozhil-modul-yadra-linux-dlya-proverki-czelostnosti-sistemy","status":"publish","type":"post","link":"https:\/\/prohoster.info\/da\/blog\/news\/microsoft-predlozhil-modul-yadra-linux-dlya-proverki-czelostnosti-sistemy","title":{"rendered":"Microsoft har tilbudt en Linux kerne-modul til systemintegritetskontrol","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Udviklerne fra Microsoft bogen \"ITIL Foundation. ITIL 4 Edition\". Dens opgave er at forklare n\u00f8glebegreberne og l\u00e6gge grundlaget for efterf\u00f8lgende studier af avancerede programmer.<\/a><\/noindex> integritetskontrolmekanisme IPE<\/a><\/noindex> (Integrity Policy Enforcement), implementeret som en LSM-modul (Linux Security Module) til Linux-kernen. Modulet g\u00f8r det muligt at bestemme en overordnet integritetspolitik for hele systemet, der angiver, hvilke operationer der er tilladt, og hvordan autentiskationen af komponenterne skal verificeres. Med IPE kan du angive, hvilke eksekverbare filer der er tilladt at k\u00f8re, og garantere, at disse filer er identiske med den version, der leveres fra en betroet kilde. Kode \u00e5bnet<\/a><\/noindex> under MIT-licensen.<\/p>\n

IPE sigter mod at skabe fuldt verificerbare systemer, hvis integritet er bekr\u00e6ftet fra den indledende bootloader og kernen til de endelige eksekverbare filer, konfigurationer og indl\u00e6sbare filer. I tilf\u00e6lde af \u00e6ndringer eller substitutioner af en fil kan IPE blokere operationen eller logge overtr\u00e6delsen af integriteten. Den foresl\u00e5ede mekanisme kan anvendes i firmware til indlejrede enheder, hvor al software og indstillinger samles og leveres af ejeren, for eksempel i datacentre. Microsoft anvender IPE i udstyr til firewalls.<\/p>\n

I mods\u00e6tning til andre integritetskontrolsystemer, s\u00e5som IMA<\/a><\/noindex>, IPE er uafh\u00e6ngig af metadata i FS \u2014 alle egenskaber, der bestemmer tilladelsen til operationer, er gemt direkte i kernen. For at verificere integriteten af filindholdet anvendes allerede eksisterende mekanismer i kernen baseret p\u00e5 kryptografiske hashes.
\ndm-verity<\/a><\/noindex> eller fs-verity<\/a><\/noindex>.
\nTilsvarende med SELinux underst\u00f8ttes to driftsformer: \u00abpermissive\u00bb og \u00abenforce\u00bb. I den f\u00f8rste tilstand logges der kun problemer ved udf\u00f8relse af kontroller, hvilket for eksempel kan bruges til at teste milj\u00f8et p\u00e5 forh\u00e5nd.<\/p>\n

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

Kilde: opennet.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

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