{"id":153260,"date":"2026-01-01T17:11:58","date_gmt":"2026-01-01T15:11:58","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/vypusk-shadow-utils-4-19-s-priznaniem-ustarevshim-mehanizma-ogranicheniya-vremeni-dejstviya-parolej"},"modified":"2026-01-01T17:11:58","modified_gmt":"2026-01-01T15:11:58","slug":"vypusk-shadow-utils-4-19-s-priznaniem-ustarevshim-mehanizma-ogranicheniya-vremeni-dejstviya-parolej","status":"publish","type":"post","link":"https:\/\/prohoster.info\/es\/blog\/news\/vypusk-shadow-utils-4-19-s-priznaniem-ustarevshim-mehanizma-ogranicheniya-vremeni-dejstviya-parolej","title":{"rendered":"Liberaci\u00f3n de shadow-utils 4.19 con la depreciaci\u00f3n del mecanismo de limitaci\u00f3n de tiempo de validez de contrase\u00f1as","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Est\u00e1 disponible la liberaci\u00f3n de la herramienta shadow-utils 4.19.0, que incluye utilidades para gestionar las credenciales de usuarios y grupos, as\u00ed como el almacenamiento de contrase\u00f1as en un archivo separado \/etc\/shadow, accesible solo para el usuario root y el grupo shadow. Incluye utilidades como useradd, userdel, usermod, pwconv, groupadd, groupdel, groupmod, pwunconv, pwck, lastlog, su y login. El c\u00f3digo de la herramienta est\u00e1 escrito en C y se distribuye bajo la licencia BSD.    <\/p>\n<p>La nueva versi\u00f3n se distingue por el anuncio de funcionalidades obsoletas, que obligan a los usuarios a cambiar su contrase\u00f1a despu\u00e9s de un per\u00edodo espec\u00edfico. Estudios recientes han demostrado que el aumento en la seguridad debido al cambio peri\u00f3dico de contrase\u00f1as es m\u00ednimo, y que la obligaci\u00f3n de cambiar contrase\u00f1as lleva a los usuarios a utilizar patrones predecibles. En el est\u00e1ndar NIST SP 800-63B-4 aprobado en 2025, no se recomienda limitar la duraci\u00f3n de las contrase\u00f1as. Las opciones obsoletas incluyen \u00ab-k\u00bb (\u2014keep-tokens), \u00ab-n\u00bb (\u2014mindays), \u00ab-x\u00bb (\u2014maxdays), \u00ab-i\u00bb (\u2014inactive) y \u00ab-w\u00bb (\u2014warndays), as\u00ed como las banderas PASS_MIN_DAYS, PASS_MAX_DAYS, PASS_WARN_AGE, INACTIVE, sp_lstchg, sp_min, sp_max, sp_warn y sp_inact. Hasta ahora no hay planes para eliminar estas opciones y banderas, solo se trata de marcarlas como obsoletas.        <\/p>\n<p>Otros cambios significativos en la nueva versi\u00f3n:  <\/p>\n<ul>\n<li class=\"l\"> Se ha prohibido el uso de caracteres de escape para la nueva l\u00ednea en los archivos de configuraci\u00f3n.\n<li class=\"l\"> Se ha declarado obsoleta la soporte de hashes SHA-1, y en la pr\u00f3xima versi\u00f3n se eliminar\u00e1 la opci\u00f3n \u2018\u2014with-sha-crypt\u2019.\n<li class=\"l\"> Las utilidades groupmems y logoutd han sido clasificadas como obsoletas y est\u00e1n programadas para ser eliminadas en futuras versiones.\n<li class=\"l\"> Se ha implementado el bloqueo de algunos nombres de usuarios y grupos peligrosos, independientemente del estado de la opci\u00f3n \u00ab\u2014badname\u00bb. Por ejemplo, nombres que comienzan con \u00ab-\u00bb o que contienen caracteres especiales como \u00ab#:;,\\\/\u00bb y diferentes formas de comillas.    <\/ul>\n<p>Fuente: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=64541\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0414\u043e\u0441\u0442\u0443\u043f\u0435\u043d \u0432\u044b\u043f\u0443\u0441\u043a \u0438\u043d\u0441\u0442\u0440\u0443\u043c\u0435\u043d\u0442\u0430\u0440\u0438\u044f shadow-utils 4.19.0, \u0432\u043a\u043b\u044e\u0447\u0430\u044e\u0449\u0435\u0433\u043e \u0443\u0442\u0438\u043b\u0438\u0442\u044b \u0434\u043b\u044f \u0443\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u044f \u0443\u0447\u0451\u0442\u043d\u044b\u043c\u0438 \u0434\u0430\u043d\u043d\u044b\u043c\u0438 \u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u0435\u043b\u0435\u0439 \u0438 \u0433\u0440\u0443\u043f\u043f, \u0430 \u0442\u0430\u043a\u0436\u0435 \u0445\u0440\u0430\u043d\u0435\u043d\u0438\u044f \u043f\u0430\u0440\u043e\u043b\u0435\u0439 \u0432 \u043e\u0442\u0434\u0435\u043b\u044c\u043d\u043e\u043c \u0444\u0430\u0439\u043b\u0435 \/etc\/shadow, \u0434\u043e\u0441\u0442\u0443\u043f\u043d\u043e\u043c \u0442\u043e\u043b\u044c\u043a\u043e \u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u0435\u043b\u044e root \u0438 \u0433\u0440\u0443\u043f\u043f\u0435 shadow. \u0412 \u0441\u043e\u0441\u0442\u0430\u0432 \u0432\u0445\u043e\u0434\u044f\u0442 \u0442\u0430\u043a\u0438\u0435 \u0443\u0442\u0438\u043b\u0438\u0442\u044b, \u043a\u0430\u043a useradd, userdel, usermod, pwconv, groupadd, groupdel, groupmod, pwunconv, pwck, lastlog, su \u0438 login. \u041a\u043e\u0434 \u0438\u043d\u0441\u0442\u0440\u0443\u043c\u0435\u043d\u0442\u0430\u0440\u0438\u044f \u043d\u0430\u043f\u0438\u0441\u0430\u043d \u043d\u0430 \u0421\u0438 \u0438 \u0440\u0430\u0441\u043f\u0440\u043e\u0441\u0442\u0440\u0430\u043d\u044f\u0435\u0442\u0441\u044f [&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-153260","post","type-post","status-publish","format-standard","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=\"\u0414\u043e\u0441\u0442\u0443\u043f\u0435\u043d \u0432\u044b\u043f\u0443\u0441\u043a \u0438\u043d\u0441\u0442\u0440\u0443\u043c\u0435\u043d\u0442\u0430\u0440\u0438\u044f shadow-utils 4.19.0, \u0432\u043a\u043b\u044e\u0447\u0430\u044e\u0449\u0435\u0433\u043e \u0443\u0442\u0438\u043b\u0438\u0442\u044b \u0434\u043b\u044f \u0443\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u044f 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