{"id":10356,"date":"2025-01-15T12:21:24","date_gmt":"2025-01-15T18:21:24","guid":{"rendered":"https:\/?post_type=publicacion&#038;p=10356"},"modified":"2025-01-15T12:21:26","modified_gmt":"2025-01-15T18:21:26","slug":"alerta-2025-05-multiples-vulnerabilidades-criticas-en-windows","status":"publish","type":"publicacion","link":"https:\/\/beaconlab.us\/es\/publicacion\/alerta-2025-05-multiples-vulnerabilidades-criticas-en-windows\/","title":{"rendered":"Alerta 2025-05 M\u00faltiples vulnerabilidades cr\u00edticas en Windows"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">Producto(s) afectado(s):\u202f&nbsp;<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>M\u00faltiples productos de Microsoft<\/strong>\u00a0<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Microsoft Office Excel<\/strong>\u00a0<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Active Directory Domain Services<\/strong>\u00a0<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Microsoft Office Outlook for Mac<\/strong>\u00a0<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Windows BitLocker<\/strong>\u00a0<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Windows NTLM<\/strong>\u00a0<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Entre otros<\/strong>\u00a0<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Descripci\u00f3n&nbsp;<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Recientemente, <strong>Microsoft<\/strong> public\u00f3 un total de 159 vulnerabilidades, incluidas 8 consideradas <strong>Zero-Days<\/strong>, con tres explotadas activamente en ataques. Estas vulnerabilidades afectan a varios productos como Microsoft Office Excel, Outlook for Mac, Active Directory Domain Services y Windows BitLocker.&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">De las vulnerabilidades publicadas por Microsoft en su parche mensual de los martes (<strong>Microsoft January 2025 Patch Tuesday<\/strong>), 12 fueron clasificadas como cr\u00edticas, incluida la divulgaci\u00f3n de informaci\u00f3n, elevaci\u00f3n de privilegios y fallas de ejecuci\u00f3n remota de c\u00f3digo (RCE).&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A continuaci\u00f3n, se detallan algunas de las vulnerabilidades m\u00e1s relevantes:&nbsp;<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>CVE-2025-21333, CVE-2025-21334, CVE-2025-21335 <\/strong>\u2013 Con un score <strong>CVSS de 7.8<\/strong>, estas vulnerabilidades <strong>Zero-Day<\/strong> han sido activamente explotadas para la elevaci\u00f3n de privilegios en Windows Hyper-V. Afectan al componente NT Kernel Integration VSP de Microsoft Windows Hyper-V, permitiendo a atacantes locales escalar privilegios a SYSTEM mediante desbordamientos de b\u00fafer y errores de uso despu\u00e9s de liberaci\u00f3n (Use After Free*).\u00a0<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>CVE-2025-21361 <\/strong>\u2013 Con una puntuaci\u00f3n <strong>CVSS de 7.8<\/strong>, esta vulnerabilidad podr\u00eda permitir a un atacante ejecutar c\u00f3digo arbitrario en el sistema de destino con los privilegios del usuario que ejecuta Microsoft Outlook asociada con la restricci\u00f3n incorrecta de nombres para archivos y otros recursos. Esto podr\u00eda dar lugar a un acceso no autorizado a informaci\u00f3n confidencial, modificaci\u00f3n de datos o interrupci\u00f3n de servicios.\u00a0\u00a0<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>CVE-2025-21294 <\/strong>\u2013 Esta vulnerabilidad (<strong>CVSS 8.1<\/strong>) permite la ejecuci\u00f3n remota de c\u00f3digo en la autenticaci\u00f3n de Microsoft Digest. Un atacante podr\u00eda potencialmente obtener el control total del sistema afectado, acceder a informaci\u00f3n confidencial, modificar datos o interrumpir las operaciones normales. El vector de ataque est\u00e1 basado en la red y no se requiere interacci\u00f3n del usuario, lo que lo hace particularmente peligroso.\u00a0<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>CVE-2025-21362 <\/strong>\u2013 Esta vulnerabilidad (<strong>CVSS 8.4<\/strong>) est\u00e1 asociada con un problema de uso despu\u00e9s de la liberaci\u00f3n (Use After Free). El vector de ataque es local y no requiere interacci\u00f3n del usuario ni privilegios para ejecutarse. Esta vulnerabilidad permite a un atacante ejecutar c\u00f3digo arbitrario en el sistema de destino a trav\u00e9s de Microsoft Excel.\u00a0<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Puedes consultar la lista completa de CVE publicada por Microsoft en el siguiente enlace:&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/msrc.microsoft.com\/update-guide\/releaseNote\/2025-Jan\" target=\"_blank\" rel=\"noreferrer noopener\">Security Update Guide &#8211; Microsoft Security Response Center<\/a>&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Recomendamos aplicar las actualizaciones correspondientes para mitigar los riesgos asociados a estas vulnerabilidades lo m\u00e1s pronto posible, especialmente aquellas que est\u00e1n siendo explotadas activamente.&nbsp;&nbsp;<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Soluci\u00f3n&nbsp;<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Es fundamental que los administradores de sistemas y usuarios finales apliquen estas actualizaciones de seguridad lo antes posible para proteger sus sistemas contra posibles explotaciones. Para obtener m\u00e1s detalles y acceder a las actualizaciones, visite el <a href=\"https:\/\/msrc.microsoft.com\/update-guide\/releaseNote\/2025-Jan\" target=\"_blank\" rel=\"noreferrer noopener\">Centro de actualizaciones de seguridad de Microsoft<\/a>.&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Informaci\u00f3n adicional:&nbsp;<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/answers.microsoft.com\/en-us\/windows\/forum\/all\/microsoft-january-2025-security-updates\/dd581d3d-5615-42b1-894f-068028fa7ccd\" target=\"_blank\" rel=\"noreferrer noopener\">Microsoft January 2025 Security Updates &#8211; Microsoft Community<\/a>\u00a0<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/cert.europa.eu\/publications\/security-advisories\/2025-002\/\" target=\"_blank\" rel=\"noreferrer noopener\">CERT-EU &#8211; Multiple Vulnerabilities in Microsoft Products<\/a>\u00a0<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/www.bleepingcomputer.com\/news\/microsoft\/microsoft-january-2025-patch-tuesday-fixes-8-zero-days-159-flaws\/\" target=\"_blank\" rel=\"noreferrer noopener\">El martes de parches de enero de 2025 de Microsoft corrige 8 d\u00edas cero y 159 fallos<\/a>\u00a0<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/encyclopedia.kaspersky.com\/glossary\/use-after-free\/\" target=\"_blank\" rel=\"noreferrer noopener\">https:\/\/encyclopedia.kaspersky.com\/glossary\/use-after-free\/<\/a>\u00a0<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n","protected":false},"featured_media":6195,"template":"","class_list":["post-10356","publicacion","type-publicacion","status-publish","has-post-thumbnail","hentry"],"acf":{"activar_pdf_link":true,"pdf":10357,"numero_de_boletin":"","traffic_light_protocol":"White"},"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.1.1 - aioseo.com -->\n\t<meta name=\"description\" content=\"Producto(s) afectado(s): M\u00faltiples productos de Microsoft Microsoft Office Excel Active Directory Domain Services Microsoft Office Outlook for Mac Windows BitLocker Windows NTLM Entre otros Descripci\u00f3n Recientemente, Microsoft public\u00f3 un total de 159 vulnerabilidades, incluidas 8 consideradas Zero-Days, con tres explotadas activamente en ataques. 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