{"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\/es\/blog\/news\/google-opublikoval-hiba-nadstrojku-nad-openssh-dlya-avtorizaczii-na-osnove-sertifikatov","title":{"rendered":"Google ha publicado HIBA, una extensi\u00f3n sobre OpenSSH para la autorizaci\u00f3n basada en certificados","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>La empresa Google ha publicado los textos fuente del proyecto HIBA (Host Identity Based Authorization), que propone la implementaci\u00f3n de un mecanismo de autorizaci\u00f3n adicional para organizar el acceso de los usuarios por SSH vinculado a hosts (verificaciones sobre si se permite o no el acceso a un recurso espec\u00edfico durante la autenticaci\u00f3n con claves p\u00fablicas). La integraci\u00f3n con OpenSSH se realiza mediante la especificaci\u00f3n del controlador HIBA en la directiva AuthorizedPrincipalsCommand en \/etc\/ssh\/sshd_config. El c\u00f3digo del proyecto est\u00e1 escrito en C y se distribuye bajo la licencia BSD.      <\/p>\n<p>HIBA utiliza mecanismos de autenticaci\u00f3n basados en certificados de OpenSSH para una gesti\u00f3n flexible y centralizada de la autorizaci\u00f3n de usuarios vinculada a hosts, pero no requiere el cambio peri\u00f3dico de los archivos authorized_keys y authorized_users en los hosts a los que se conecta. En lugar de almacenar una lista de claves p\u00fablicas permitidas y condiciones de acceso en los archivos authorized_(keys|users), HIBA integra la informaci\u00f3n sobre la vinculaci\u00f3n de usuarios a hosts directamente en los propios certificados. En particular, se proponen extensiones para certificados de hosts y certificados de usuarios, que almacenan los par\u00e1metros de hosts y las condiciones de acceso de los usuarios.    <\/p>\n<p>La verificaci\u00f3n en el lado del host se inicia mediante la llamada al controlador hiba-chk, especificado en la directiva AuthorizedPrincipalsCommand. Este controlador decodifica las extensiones integradas en los certificados y, bas\u00e1ndose en ellas, toma la decisi\u00f3n de conceder o bloquear el acceso. Las reglas de acceso se definen de manera centralizada a nivel de la autoridad certificadora (CA) y se integran en los certificados en la etapa de su generaci\u00f3n.     <\/p>\n<p>En el lado de la autoridad certificadora se mantiene una lista general de los poderes disponibles (hosts a los que se permite la conexi\u00f3n) y una lista de usuarios que tienen permiso para utilizar estos poderes. Se ha propuesto la utilidad hiba-gen para generar certificados firmados con informaci\u00f3n integrada sobre los poderes, y la funcionalidad necesaria para crear una autoridad certificadora se ha trasladado al script iba-ca.sh.      <\/p>\n<p>Al conectarse, las credenciales indicadas en el certificado se validan mediante la firma digital de la autoridad de certificaci\u00f3n, lo que permite realizar todas las verificaciones completamente en el lado del host de destino al que se est\u00e1 conectando, sin recurrir a servicios externos. La lista de claves p\u00fablicas de la autoridad de certificaci\u00f3n que firma los certificados SSH se especifica a trav\u00e9s de la directiva TrustedUserCAKeys.    <\/p>\n<p>Adem\u00e1s de la vinculaci\u00f3n directa de usuarios a hosts, HIBA permite establecer reglas de acceso m\u00e1s flexibles. Por ejemplo, se puede vincular informaci\u00f3n como la ubicaci\u00f3n y el tipo de servicio a los hosts, y al definir reglas de acceso para los usuarios, permitir conexiones a todos los hosts con el tipo de servicio especificado o a los hosts en una ubicaci\u00f3n determinada.    <center><img decoding=\"async\" alt=\"Google ha publicado HIBA, una extensi\u00f3n sobre OpenSSH para la autorizaci\u00f3n basada en certificados\" src=\"\/wp-content\/uploads\/2021\/09\/7f4516e5c1a35971073cd98ce6005064.png\" style=\"display:block;margin: 0 auto;\" \/><\/center>  <center><img decoding=\"async\" alt=\"Google ha publicado HIBA, una extensi\u00f3n sobre OpenSSH para la autorizaci\u00f3n basada en certificados\" src=\"\/wp-content\/uploads\/2021\/09\/92d4a1feaf66ba870ffa63082cf4e42a.png\" style=\"display:block;margin: 0 auto;\" \/><\/center><br \/>\n<br \/>Fuente: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=55841\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\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 [&hellip;]<\/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<!-- All in One SEO 5.0.2 - aioseo.com -->\n\t<meta name=\"description\" content=\"\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), 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para OpenSSH para la autorizaci\u00f3n basada en certificados | ProHoster","description":"La empresa Google ha publicado los textos fuente del proyecto HIBA (Host Identity Based Authorization), que propone la implementaci\u00f3n de un mecanismo adicional de autorizaci\u00f3n para gestionar el acceso de los usuarios a trav\u00e9s de SSH.","canonical_url":"https:\/\/prohoster.info\/es\/blog\/news\/google-opublikoval-hiba-nadstrojku-nad-openssh-dlya-avtorizaczii-na-osnove-sertifikatov","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":null,"og:locale":"es_ES","og:site_name":"ProHoster | \u041a\u0443\u043f\u0438\u0442\u044c \u043d\u0430\u0434\u0435\u0436\u043d\u044b\u0439 \u0445\u043e\u0441\u0442\u0438\u043d\u0433 \u0434\u043b\u044f \u0441\u0430\u0439\u0442\u043e\u0432 \u0441 \u0437\u0430\u0449\u0438\u0442\u043e\u0439 \u043e\u0442 DDoS, VPS VDS \u0441\u0435\u0440\u0432\u0435\u0440\u044b","og:type":"article","og:title":"\ud83e\udd47Google 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