<style id="elementor-post-6159">.elementor-6159 .elementor-element.elementor-element-3e4e33a7{margin-top:-20px;margin-bottom:0px;padding:0px 0px 0px 0px;}.elementor-6159 .elementor-element.elementor-element-1313e43f > .elementor-widget-wrap > .elementor-widget:not(.elementor-widget__width-auto):not(.elementor-widget__width-initial):not(:last-child):not(.elementor-absolute){margin-block-end:5px;}.elementor-6159 .elementor-element.elementor-element-1313e43f > .elementor-element-populated{padding:0px 0px 20px 0px;}.elementor-6159 .elementor-element.elementor-element-300e6521{--divider-border-style:solid;--divider-color:#0000001A;--divider-border-width:1px;}.elementor-6159 .elementor-element.elementor-element-300e6521 .elementor-divider-separator{width:100%;}.elementor-6159 .elementor-element.elementor-element-300e6521 .elementor-divider{padding-block-start:15px;padding-block-end:15px;}.elementor-6159 .elementor-element.elementor-element-e6357ee > .elementor-widget-container{margin:0px 0px 20px 0px;}.elementor-6159 .elementor-element.elementor-element-948c304 > .elementor-widget-container{margin:0px 0px 20px 0px;}.elementor-6159 .elementor-element.elementor-element-b38f1fd > .elementor-widget-container{margin:0px 0px 20px 0px;}.elementor-6159 .elementor-element.elementor-element-8dbac1d > .elementor-widget-container{margin:0px 0px 20px 0px;}.elementor-6159 .elementor-element.elementor-element-18f81e0 > .elementor-widget-container{margin:0px 0px 20px 0px;}/* Start custom CSS for text-editor, class: .elementor-element-31bc079c */.elementor-6159 .elementor-element.elementor-element-31bc079c a {
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}/* End custom CSS */</style>{"id":6159,"date":"2022-09-30T14:21:06","date_gmt":"2022-09-30T12:21:06","guid":{"rendered":"https:\/\/www.infordisa.com\/soc\/?p=6159"},"modified":"2025-08-18T13:17:42","modified_gmt":"2025-08-18T11:17:42","slug":"2-vulnerabilitats-0day-en-microsoft-exchange-server","status":"publish","type":"post","link":"https:\/\/www.infordisa.com\/soc\/ca\/2-vulnerabilidades-0day-en-microsoft-exchange-server\/","title":{"rendered":"2 vulnerabilitats 0-day a Microsoft Exchange Server"},"content":{"rendered":"<div data-elementor-type=\"wp-post\" data-elementor-id=\"6159\" class=\"elementor elementor-6159\" data-elementor-post-type=\"post\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-3e4e33a7 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"3e4e33a7\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-1313e43f\" data-id=\"1313e43f\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-19628773 elementor-widget elementor-widget-shortcode\" data-id=\"19628773\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"shortcode.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-shortcode\"><span style=\"color: #c02b23;font-weight: bold\">Cr&iacute;tica <\/span><img loading=\"lazy\" decoding=\"async\" width=\"10\" height=\"10\" src=\"https:\/\/www.infordisa.com\/soc\/imgs\/alerta-5.png\" alt=\"Alerta 5\"\/><\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-31bc079c elementor-widget elementor-widget-text-editor\" data-id=\"31bc079c\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div><strong><a href=\"https:\/\/msrc-blog.microsoft.com\/2022\/09\/29\/customer-guidance-for-reported-zero-day-vulnerabilities-in-microsoft-exchange-server\/\" target=\"_blank\" rel=\"noopener\">2 vulnerabilidades<\/a><\/strong><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-300e6521 elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"300e6521\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7c68318e elementor-widget elementor-widget-text-editor\" data-id=\"7c68318e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h2>Recursos afectados<\/h2><ul><li>Exchange Server 2013<\/li><li>Exchange Server 2016<\/li><li>Exchange Server 2019<\/li><\/ul><h2>Descripci&oacute;n<\/h2><p>Microsoft est&aacute; investigando dos vulnerabilidades de tipo<strong> <a class=\"glossaryLink\"  href=\"https:\/\/www.infordisa.com\/soc\/ca\/glosario-definicion\/0-day\/\"  data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex='0' role='link'>0-day<\/a> que afectan a Microsoft Exchange Server<\/strong>. Estas vulnerabilidades podr&iacute;an permitir a un ciberatacante ejecutar c&oacute;digo de forma remota.<\/p><p>La primera <a class=\"glossaryLink\" href=\"https:\/\/www.infordisa.com\/soc\/ca\/glosario-definicion\/vulnerabilidad\/\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex=\"0\" role=\"link\">vulnerabilidad<\/a>, identificada como <a href=\"https:\/\/cve.mitre.org\/cgi-bin\/cvename.cgi?name=2022-41040\" target=\"_blank\" rel=\"noopener\"><strong>CVE-2022-41040<\/strong><\/a>, es una vulnerabilidad de falsificaci&oacute;n de solicitud del lado del <a class=\"glossaryLink\"  href=\"https:\/\/www.infordisa.com\/soc\/ca\/glosario-definicion\/servidor\/\"  data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex='0' role='link'>servidor<\/a> (SSRF), mientras que la segunda, identificada como <a href=\"https:\/\/cve.mitre.org\/cgi-bin\/cvename.cgi?name=CVE-2022-41082\" target=\"_blank\" rel=\"noopener\"><strong>CVE-2022-41082<\/strong><\/a>, permite la ejecuci&oacute;n remota de c&oacute;digo (RCE) cuando el atacante puede acceder a PowerShell.<\/p><h2>Soluci&oacute;n<\/h2><p><strong>En estos momentos no hay disponible una actualizaci&oacute;n o <a class=\"glossaryLink\" href=\"https:\/\/www.infordisa.com\/soc\/ca\/glosario-definicion\/parche-de-seguridad\/\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex=\"0\" role=\"link\">parche de seguridad<\/a> que corrija estas vulnerabilidades<\/strong>. Mientras tanto, Microsoft recomienda aplicar una serie de medidas de mitigaci&oacute;n.<\/p><p>Si no se ejecuta Microsoft Exchange on premise y no se tiene Outlook Web App con acceso a Internet, no se ver&aacute; afectado.<\/p><p>Recuerda la importancia de mantener tus sistemas y aplicaciones siempre actualizados.<\/p><hr><p>Mas informaci&oacute;n en el <a href=\"https:\/\/msrc-blog.microsoft.com\/2022\/09\/29\/customer-guidance-for-reported-zero-day-vulnerabilities-in-microsoft-exchange-server\/\" target=\"_blank\" rel=\"noopener\">Centro de respuestas de seguridad de Microsoft<\/a><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e6357ee elementor-alert-danger elementor-widget elementor-widget-alert\" data-id=\"e6357ee\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"alert.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-alert\" role=\"alert\">\n\n\t\t\t\t\t\t<span class=\"elementor-alert-title\">Actualizaciones del 2 de octubre de 2022:<\/span>\n\t\t\t\n\t\t\t\t\t\t<span class=\"elementor-alert-description\"><ul><li><em><font style=\"vertical-align: inherit\"><font style=\"vertical-align: inherit\">Agregado a la secci&oacute;n Mitigaciones: recomendamos enf&aacute;ticamente a los clientes de Exchange Server que deshabiliten el acceso remoto a PowerShell para usuarios que no sean administradores en su organizaci&oacute;n. <\/font><font style=\"vertical-align: inherit\">La gu&iacute;a sobre c&oacute;mo hacer esto para un solo usuario o m&uacute;ltiples usuarios est&aacute; <\/font><\/font><a rel=\"noreferrer noopener\" href=\"https:\/\/learn.microsoft.com\/en-us\/powershell\/exchange\/control-remote-powershell-access-to-exchange-servers?view=exchange-ps%22%20%5Cl%20%22use-the-exchange-management-shell-to-enable-or-disable-remote-powershell-access-for-a-user\" target=\"_blank\"><font style=\"vertical-align: inherit\"><font style=\"vertical-align: inherit\">aqu&iacute;<\/font><\/font><\/a><font style=\"vertical-align: inherit\"><font style=\"vertical-align: inherit\"> . &nbsp;<\/font><\/font><\/em><\/li><li><em><font style=\"vertical-align: inherit\"><font style=\"vertical-align: inherit\">Se actualiz&oacute; la secci&oacute;n Detecci&oacute;n para hacer referencia<\/font><\/font><\/em><font style=\"vertical-align: inherit\"><font style=\"vertical-align: inherit\"> a <\/font><\/font><a href=\"https:\/\/www.microsoft.com\/security\/blog\/2022\/09\/30\/analyzing-attacks-using-the-exchange-vulnerabilities-cve-2022-41040-and-cve-2022-41082\/\" target=\"_blank\" rel=\"noreferrer noopener\"><font style=\"vertical-align: inherit\"><font style=\"vertical-align: inherit\">An&aacute;lisis de ataques mediante las vulnerabilidades de Exchange CVE-2022-41040 y CVE-2022-41082<\/font><\/font><\/a><font style=\"vertical-align: inherit\"><font style=\"vertical-align: inherit\"> .<\/font><\/font><\/li><\/ul><\/span>\n\t\t\t\n\t\t\t\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-948c304 elementor-alert-danger elementor-widget elementor-widget-alert\" data-id=\"948c304\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"alert.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-alert\" role=\"alert\">\n\n\t\t\t\t\t\t<span class=\"elementor-alert-title\">Actualizaciones del 4 de octubre de 2022:<\/span>\n\t\t\t\n\t\t\t\t\t\t<span class=\"elementor-alert-description\"><p>se realizaron actualizaciones importantes en la secci&oacute;n Mitigaciones para mejorar la regla de reescritura de <a class=\"glossaryLink\"  href=\"https:\/\/www.infordisa.com\/soc\/ca\/glosario-definicion\/url\/\"  data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex='0' role='link'>URL<\/a>. Los clientes deben revisar la secci&oacute;n Mitigaciones y aplicar una de estas opciones de mitigaci&oacute;n actualizadas:<\/p>\n<ul>\n  <li>Opci&oacute;n 1: La regla EEMS se actualiza y se aplica autom&aacute;ticamente.<\/li>\n  <li> Opci&oacute;n 2: el script EOMTv2 proporcionado anteriormente se ha actualizado para incluir la mejora de reescritura de URL.<\/li>\n  <li> Opci&oacute;n 3: las instrucciones de la regla de reescritura de URL se han actualizado. La cadena en el paso 6 y el paso 9 ha sido revisada. Los pasos 8, 9 y 10 tienen im&aacute;genes actualizadas.<\/li>\n<\/ul><\/span>\n\t\t\t\n\t\t\t\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b38f1fd elementor-alert-danger elementor-widget elementor-widget-alert\" data-id=\"b38f1fd\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"alert.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-alert\" role=\"alert\">\n\n\t\t\t\t\t\t<span class=\"elementor-alert-title\">Actualizaciones del 5 de octubre de 2022:<\/span>\n\t\t\t\n\t\t\t\t\t\t<span class=\"elementor-alert-description\">\n<p><em>se han realizado mejoras adicionales en la mitigaci&oacute;n de la regla de reescritura de <a class=\"glossaryLink\"  href=\"https:\/\/www.infordisa.com\/soc\/ca\/glosario-definicion\/url\/\"  data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex='0' role='link'>URL<\/a>.&nbsp;Los clientes deben revisar y usar una de estas opciones:<\/em><\/p>\n<ul>\n  <li><em>Opci&oacute;n 1: la mitigaci&oacute;n para la regla EEMS se ha actualizado y las actualizaciones se aplicar&aacute;n autom&aacute;ticamente.<\/em><\/li>\n  <li><em>Opci&oacute;n 2: Se actualiz&oacute; la mitigaci&oacute;n para EOMTv2.<\/em><\/li>\n  <li><em>Opci&oacute;n 3: las instrucciones y la imagen del paso 10 se actualizan para un cambio de entrada de condici&oacute;n.<\/em><\/li>\n<\/ul>\n<p><em>Se agreg&oacute; en la secci&oacute;n Mitigaciones que los clientes de Exchange Server deben completar ambas mitigaciones recomendadas.<\/em><\/p>\n<\/span>\n\t\t\t\n\t\t\t\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8dbac1d elementor-alert-danger elementor-widget elementor-widget-alert\" data-id=\"8dbac1d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"alert.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-alert\" role=\"alert\">\n\n\t\t\t\t\t\t<span class=\"elementor-alert-title\">Actualizaciones del 6 de octubre de 2022:<\/span>\n\t\t\t\n\t\t\t\t\t\t<span class=\"elementor-alert-description\">se lanz&oacute; una versi&oacute;n actualizada para EOMTv2 para eliminar un espacio adicional en el script que no afectaba la funcionalidad.<\/span>\n\t\t\t\n\t\t\t\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-18f81e0 elementor-alert-success elementor-widget elementor-widget-alert\" data-id=\"18f81e0\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"alert.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-alert\" role=\"alert\">\n\n\t\t\t\t\t\t<span class=\"elementor-alert-title\">Actualizaciones del 11 de octubre de 2022:<\/span>\n\t\t\t\n\t\t\t\t\t\t<span class=\"elementor-alert-description\">Microsoft ha publicado actualizaciones de seguridad (SU) para vulnerabilidades encontradas en Microsoft Exchange Server 2013, 2016 y 2019<br>\n<a href=\"https:\/\/techcommunity.microsoft.com\/t5\/exchange-team-blog\/released-october-2022-exchange-server-security-updates\/ba-p\/3646263\" target=\"_blank\"><b>Ver actualizaciones de seguridad<\/b><\/a><\/span>\n\t\t\t\n\t\t\t\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Microsoft investiga dues vulnerabilitats de tipus 0day que afecten Microsoft Exchange Server. Aquestes vulnerabilitats podrien permetre a un ciberatacant executar codi de manera remota.<\/p>","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"categories":[4],"tags":[78,62],"class_list":["post-6159","post","type-post","status-publish","format-standard","hentry","category-alertas-de-seguridad","tag-0-day","tag-microsoft","masonry-post","generate-columns","tablet-grid-50","mobile-grid-100","grid-parent","grid-25"],"acf":[],"yoast_head":"<title>2 vulnerabilidades 0-day en Microsoft Exchange Server - Infordisa \/ Security Operations Center<\/title>\n<meta name=\"description\" content=\"Microsoft est\u00e1 investigando dos vulnerabilidades de tipo 0day que afectan a Microsoft Exchange Server.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.infordisa.com\/soc\/ca\/2-vulnerabilitats-0day-en-microsoft-exchange-server\/\" \/>\n<meta property=\"og:locale\" content=\"ca_ES\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"2 vulnerabilidades 0-day en Microsoft Exchange Server - 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