{"id":101355,"date":"2021-09-21T16:22:37","date_gmt":"2021-09-21T14:22:38","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/google-opublikoval-hiba-nadstrojku-nad-openssh-dlya-avtorizaczii-na-osnove-sertifikatov"},"modified":"2021-09-21T16:22:37","modified_gmt":"2021-09-21T14:22:38","slug":"google-opublikoval-hiba-nadstrojku-nad-openssh-dlya-avtorizaczii-na-osnove-sertifikatov","status":"publish","type":"post","link":"https:\/\/prohoster.info\/et\/blog\/news\/google-opublikoval-hiba-nadstrojku-nad-openssh-dlya-avtorizaczii-na-osnove-sertifikatov","title":{"rendered":"Google avaldas HIBA, OpenSSH-le sertifikaatide p\u00f5hjal autoriseerimise plugin","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Google avaldas HIBA (Host Identity Based Authorization) projekti allikaine, mis pakub v\u00e4lja t\u00e4iendava autoriseerimise mehhanismi, et korraldada kasutajate juurdep\u00e4\u00e4su SSH kaudu seotud hostidele (kontrollid, kas teatud ressurssidele on juurdep\u00e4\u00e4s lubatud v\u00f5i mitte autentimise k\u00e4igus avatud v\u00f5tmete abil). Integreerimine OpenSSH-ga tagatakse, m\u00e4rkides HIBA t\u00f6\u00f6tlejat autoriseerimisdirektiivis AuthorizedPrincipalsCommand failis \/etc\/ssh\/sshd_config. Projekti kood on kirjutatud C keeles ja levitatakse BSD litsentsi alusel. <\/p>\n

HIBA kasutab OpenSSH sertifikaatide baasil autentimise tavap\u00e4raseid mehhanisme, et v\u00f5imaldada paindlikku ja tsentraliseeritud kasutajate autoriseerimise haldamist hostidega, kuid ei n\u00f5ua selleks regulaarselt authorized_keys ja authorized_users faile hostide k\u00fcljest muutmist. Selle asemel, et salvestada lubatud avalike v\u00f5tmete nimekiri ja juurdep\u00e4\u00e4su tingimused failides authorized_(keys|users), integreerib HIBA kasutajate sidumise teabe otse sertifikaatidesse. Eelk\u00f5ige on v\u00e4lja pakutud pikendused hosti ja kasutaja sertifikaatide jaoks, kus hoitakse hostide parameetreid ja kasutajate juurdep\u00e4\u00e4su tingimusi. <\/p>\n

Hosti k\u00fclgedelt algatatakse kontroll hiba-chk t\u00f6\u00f6tleja kutsumise kaudu, mis on m\u00e4\u00e4ratud AutorizedPrincipalsCommand direktiivis. See t\u00f6\u00f6tleja dekodeerib sertifikaatidesse integreeritud pikendused ja nende p\u00f5hjal teeb otsuse juurdep\u00e4\u00e4su andmise v\u00f5i blokeerimise kohta. Juurdep\u00e4\u00e4sureeglid m\u00e4\u00e4ratakse tsentraliseeritult tunnustusasutuse (CA) tasandil ja integreeritakse sertifikaatidesse nende genereerimise etapis. <\/p>\n

Tunnustusasutuse poolel hoitakse \u00fchist nimekirja saadaval olevatest \u00f5igustest (hostidest, millele on lubatud \u00fchenduda) ja kasutajatest, kellele on lubatud nende \u00f5iguste kasutamine. Zaveritud sertifikaatide genereerimiseks, millele on integreeritud teave \u00f5iguste kohta, on pakutud t\u00f6\u00f6riist hiba-gen, ja vajalik funktsionaalsus tunnustusasutuse loomiseks on viidud skripti iba-ca.sh. <\/p>\n

Kasutaja \u00fchendamisel kinnitatakse sertifikaatides m\u00e4rgitud volitused sertifitseerimiskeskuse digitaalse allkirjaga, mis v\u00f5imaldab k\u00f5iki kontrollimisi t\u00e4ielikult teha sihthostis, kuhu \u00fchenduvad, ilma v\u00e4listesse teenustesse p\u00f6\u00f6rdumata. Sertifikaate SSH sertifikaatide allkirjastava sertifitseerimiskeskuse avalike v\u00f5tmete loetelu antakse TrustedUserCAKeys direktiivi kaudu. <\/p>\n

Lisaks kasutajate otsesele sidumisele hostidega v\u00f5imaldab HIBA m\u00e4\u00e4rata paindlikumaid juurdep\u00e4\u00e4sureegleid. N\u00e4iteks saab hostidele siduda teavet nagu asukoht ja teenuse t\u00fc\u00fcp, ning kasutajate juurdep\u00e4\u00e4sureeglite m\u00e4\u00e4ramisel lubada \u00fchendusi k\u00f5igi hostidega, millel on m\u00e4\u00e4ratud teenuse t\u00fc\u00fcp v\u00f5i hostidega antud asukohas.

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

\u041a\u043e\u043c\u043f\u0430\u043d\u0438\u044f Google \u043e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043b\u0430 \u0438\u0441\u0445\u043e\u0434\u043d\u044b\u0435 \u0442\u0435\u043a\u0441\u0442\u044b \u043f\u0440\u043e\u0435\u043a\u0442\u0430 HIBA (Host Identity Based Authorization), \u043f\u0440\u0435\u0434\u043b\u0430\u0433\u0430\u044e\u0449\u0435\u0433\u043e \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u044e \u0434\u043e\u043f\u043e\u043b\u043d\u0438\u0442\u0435\u043b\u044c\u043d\u043e\u0433\u043e \u043c\u0435\u0445\u0430\u043d\u0438\u0437\u043c\u0430 \u0430\u0432\u0442\u043e\u0440\u0438\u0437\u0430\u0446\u0438\u0438 \u0434\u043b\u044f \u043e\u0440\u0433\u0430\u043d\u0438\u0437\u0430\u0446\u0438\u0438 \u0434\u043e\u0441\u0442\u0443\u043f\u0430 \u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u0435\u043b\u0435\u0439 \u043f\u043e SSH \u0432 \u043f\u0440\u0438\u0432\u044f\u0437\u043a\u0435 \u043a \u0445\u043e\u0441\u0442\u0430\u043c (\u043f\u0440\u043e\u0432\u0435\u0440\u043a\u0438, \u0440\u0430\u0437\u0440\u0435\u0448\u0451\u043d \u0438\u043b\u0438 \u043d\u0435\u0442 \u0434\u043e\u0441\u0442\u0443\u043f \u043a \u043a\u043e\u043d\u043a\u0440\u0435\u0442\u043d\u043e\u043c\u0443 \u0440\u0435\u0441\u0443\u0440\u0441\u0443 \u043f\u0440\u0438 \u0430\u0443\u0442\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u0438 \u043f\u043e \u043e\u0442\u043a\u0440\u044b\u0442\u044b\u043c \u043a\u043b\u044e\u0447\u0430\u043c). \u0418\u043d\u0442\u0435\u0433\u0440\u0430\u0446\u0438\u044f \u0441 OpenSSH \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0438\u0432\u0430\u0435\u0442\u0441\u044f \u0447\u0435\u0440\u0435\u0437 \u0443\u043a\u0430\u0437\u0430\u043d\u0438\u0435 \u043e\u0431\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a\u0430 HIBA \u0432 \u0434\u0438\u0440\u0435\u043a\u0442\u0438\u0432\u0435 AuthorizedPrincipalsCommand \u0432 \/etc\/ssh\/sshd_config. \u041a\u043e\u0434 \u043f\u0440\u043e\u0435\u043a\u0442\u0430 \u043d\u0430\u043f\u0438\u0441\u0430\u043d […]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":101356,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-101355","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\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\n","aioseo_head_json":{"title":"\ud83e\udd47Google avaldas HIBA, OpenSSH-i sertifikaatide p\u00f5hine autoriseerimise lisand | ProHoster","description":"Google avaldas HIBA (Host Identity Based Authorization) projekti l\u00e4htekoodid, mis pakub t\u00e4iendava autoriseerimismehhanismi rakendamist SSH juurdep\u00e4\u00e4su 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