{"id":7024,"date":"2016-08-22T12:16:41","date_gmt":"2016-08-22T17:16:41","guid":{"rendered":"https:\/\/www.servimatango.com\/blog\/?p=7024"},"modified":"2019-06-10T12:02:07","modified_gmt":"2019-06-10T17:02:07","slug":"contramedidad-voip","status":"publish","type":"post","link":"https:\/\/servervoip.com\/blog\/contramedidad-voip\/","title":{"rendered":"Contramedidad VoIP"},"content":{"rendered":"<p><strong>Contramedidas<\/strong> <\/p>\n<p>Para resguardar la capa de aplicaci\u00f3n de VoIP existen herramientas de seguridad en las redes de datos que pueden ser utilizadas para VoIP. Entre estas herramientas se encuentran: firewalls, antivirus y anti esp\u00edas ( antispyware ). Adem\u00e1s de estas herramientas, muy comunes en las redes de datos, se pueden encontrar 2 herramientas que ayudaran con los resguardos de VoIP: hardening y Host Intrusion Prevention System (HIPS). <\/p>\n<p><strong>Hardening<\/strong> <\/p>\n<p>Es una acci\u00f3n compuesta por un conjunto de actividades, que son realizadas por el administrador de un sistema operativo para reforzar al m\u00e1ximo la seguridad de un dispositivo.  <\/p>\n<p>As\u00ed se entorpece la labor del atacante y se puede minimizar las consecuencias de un incidente de seguridad e incluso evitar que \u0301este suceda.  <\/p>\n<p>Es importante se\u00f1alar que el hardening de sistemas operativos no necesariamente lograr \u0301a equipos invulnerables. Seg \u0301un el modelo OSI, el sistema operativo es solo una capa de \u0301este (capa aplicaci\u00f3n) y es un factor mas a considerar para defender globalmente un sistema VoIP. <\/p>\n<p>Los dispositivos que trabajan con sistemas operativos conocidos, son m \u0301as vulnerables y es importante la realizaci\u00f3n de hardening en el sistema. Por ejemplo una PBX Trixbox, es un sistema completo de aplicaciones (entre \u0301estas la central Asterisk) que se encuentra sobre un sistema operativo CentOS, el cual es libre y es un sistema abierto. CentOS est\u00e1 ampliamente documenta- do lo que ampl\u0131a el conocimiento de los atacantes sobre sus vulnerabilidades y su funcionamiento. <\/p>\n<p>Para prevenir posibles ataques de sistemas operativos utilizados en VoIP es necesario realizar hardening a todos los dispositivos VoIP. En el ap\u00e9ndice B se desarrolla hardening para el sistema operativo CentOS. <\/p>\n<p>A continuaci\u00f3n se listan pasos de hardening para sistemas operativos en general:<br \/>\n1. Instalar la \u00faltima versi\u00f3n y luego realizar una actualizaci\u00f3n. 2. Buscar parches de vulnerabilidades en p \u0301aginas web como: http:\/\/cve.mitre.org\/<br \/>\n3. Cambiar contrase\u00f1as por omisi\u00f3n del sistema.<br \/>\n4. Proteger archivos de sistema.<br \/>\n5. Establecer cuentas de usuarios y bridar permisos necesarios.<br \/>\n6. Listar los servicios necesarios, para el funcionamiento y eliminar todas las aplicaciones no necesarias.<br \/>\n7. Cerrar todos los puertos no utilizados.<br \/>\n8. Para las aplicaciones de acceso remoto, establecer contrase\u00f1as y limitar errores de su ingreso. <\/p>\n<p>Algunos pasos de hardening y buenas pr\u00e1cticas en los sistemas VoIP son las siguientes:<br \/>\n\u2022\tRevisar exhaustivamente el plan de discado.<br \/>\n\u2022\tResguardar la base de datos con los usuarios y buz\u00f3n de mensajes.  <\/p>\n<p>Host Intrusion Prevention System (HIPS) <\/p>\n<p>HIPS es un software que reside en un computador o servidor ( host ) y analiza anomal\u00edas a nivel de sistema operativo. Es un dispositivo del tipo reactivo, es decir, detecta y act\u00faa. Un HIPS es la \u0301ultima barrera que un atacante deber\u00eda enfrentar, despu\u00e9s de haber vulnerado los sistemas de seguridad a nivel de capas m \u0301as bajas. Un HIPS detecta anomal\u00edas a nivel de capa de aplicaci\u00f3n en el sistema operativo y puede bloquear llamadas maliciosas al sistema. <\/p>\n<p>Estas anomal\u00edas pueden ser accesos no autorizados a archivos cr\u00edticos, mensajes mal formados, programas de escaneo de puertos, etc. Para VoIP un HIPS instalado en un terminal de software ser \u0301\u0131a muy \u00fatil, ya que solamente permitir\u00eda softphones y aplicaciones autorizadas, evitando as \u0301\u0131 la mezcla de la red VoIP con la de datos. Es decir, un HIPS bien configurado podr\u00eda evitar que los diferentes programas que permiten los ataques no lleguen a la red VoIP. 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https:\/\/servervoip.com\/blog\/wp-content\/uploads\/empresa-de-telefonia-voip-150x94.png 150w, https:\/\/servervoip.com\/blog\/wp-content\/uploads\/empresa-de-telefonia-voip-300x189.png 300w\" sizes=\"(max-width: 713px) 100vw, 713px\" \/><\/a><br \/>\n[st_button button_text=\u00bb SOLICITA TU SERVER AHORA \u25ba\u00bb button_type_url=\u00bbhttp:\/\/www.servervoip.com\/voipswitch-comprar.php?server=50_promo\u00bb open_in=\u00bbnew_window\u00bb icon=\u00bbfa fa-shopping-cart\u00bb button_alignment=\u00bbcenter\u00bb button_margin_top=\u00bb-50&#8243; button_size=\u00bbbtn-lg\u00bb button_color=\u00bbbtn-blue\u00bb appearing_animation=\u00bbfade_in\u00bb wrapper_padding_top=\u00bb0&#8243; wrapper_padding_left=\u00bb0&#8243; wrapper_padding_bottom=\u00bb0&#8243; wrapper_padding_right=\u00bb0&#8243; wrapper_bg_opacity_slider=\u00bb\u00bb id_wrapper=\u00bbelm_5c828b3fe9618&#8243; ][\/st_button]<br \/>\n&nbsp;<br \/>\nMientras Algunos se pasan Observando los Logros de Otros; T\u00da Trabajas por el Tuyo.<\/p>\n<p>Y T\u00fa, \u00bfTienes lo Que le Hace Falta para Ser un VERDADERO EMPRENDEDOR@?<\/p>\n<p>Tu Empresa de Telefon\u00eda VoIP est\u00e1 dise\u00f1ada para que administres, gestiones y monitorees sus herramientas sin complicaciones o necesidad de conocimientos t\u00e9cnicos.<\/p>\n<ul>\n<li>Genera <strong>CLIENTES<\/strong>,<\/li>\n<li>Ingresa <strong>PROVEEDORES<\/strong>,<\/li>\n<li>Forma <strong>DISTRIBUIDORES<\/strong><\/li>\n<\/ul>\n<p><strong>ServerVoip <\/strong>presenta el mejor server fisico dedicado para telefonia voip que incluye el software de telefon\u00eda ip \u00abVoipSwitch\u00bb especial para voz sobre ip.<\/p>\n<p><strong>VoipSwitch <\/strong>es la plataforma ideal para que sin necesidad de conocimientos t\u00e9cnicos crees tu propia empresa de Telefon\u00eda IP VoIP y encuentres una forma de ganar DINERO en la red siendo carrier de telefon\u00eda sobre Ip (Voip). <\/p>\n<p>Te brindamos todas las herramientas para que est\u00e9s al nivel de las grandes empresas y negocios; puedas obsequiar llamadas gratis como estrategia de marketing en fidelizaci\u00f3n a tus clientes \/ free entre tus clientes; el servidor VoIP te permite utilizar m\u00faltiples proveedores como nosotros tenemos <a href=\"http:\/\/www.alosip.com\/\" target=\"_blank\" rel=\"noopener noreferrer\"> www.alosip.com.<\/a> (carrier \/ routes) para un mismo destino, vender terminaci\u00f3n (wholesale), clientes finales (retail), etc.<\/p>\n<p>El software te proporciona todo lo que necesitas; sistema llave en mano: para crear tu empresa de telefon\u00eda IP (VoIP) bajo tu propio nombre o marca. M\u00e1s informaci\u00f3n en  <a href=\"http:\/\/marcablanca.servervoip.com\/\" target=\"_blank\" rel=\"noopener noreferrer\">marcaBlanca.servervoip.com<\/a><\/p>\n<p>Para que CREES y DESARROLLES tu propia empresa de telefonia por internet, revisa m\u00e1s detalles en <a href=\"http:\/\/www.servervoip.com\/voipswitch\/\">VoIPSwitch<\/a><\/p>\n<hr \/>\n<h1 style=\"text-align: center;\">\u00bfQuieres Emprender por Internet?<\/h1>\n<h3 style=\"text-align: center;\">\u00abAhora Trabajar desde la Comodidad de tu Casa y Ganar Dinero por Internet&#8230; Nunca Hab\u00eda Sido tan F\u00e1cil, R\u00e1pido y con RESULTADOS Impresionantes\u00bb<\/h3>\n<p style=\"text-align: center;\">Descubre el NEGOCIO Perfecto y convi\u00e9rtete en un EMPRESARIO de \u00c9xito creando y desarrollando tu Propia Empresa de Telefon\u00eda por Internet. <strong>Suscr\u00edbete y RECIBE FREE<\/strong>:<\/p>\n<h2 style=\"text-align: center;\">\u00a1Sie7e Poderosas Razones Que Tiene el EMPRENDEDOR Exitoso para Crear su Propia Empresa de Telefon\u00eda por Internet VoIP!&#8230;<\/h2>\n<p><img loading=\"lazy\" class=\"aligncenter wp-image-1229 size-medium\" src=\"http:\/\/servimatango.com\/negocios-rentables\/wp-content\/uploads\/2015\/07\/libro-server-voip-241x300.png\" alt=\"libro server voip\" width=\"241\" height=\"300\" \/><br \/>\n[st_accordion div_margin_bottom=\u00bb15&#8243; initial_open=\u00bb0&#8243; multi_open=\u00bbyes\u00bb wrapper_padding_top=\u00bb0&#8243; wrapper_padding_left=\u00bb0&#8243; wrapper_padding_bottom=\u00bb0&#8243; wrapper_padding_right=\u00bb0&#8243; wrapper_bg_opacity_slider=\u00bb\u00bb wrapper_bg_opacity=\u00bb50&#8243; wrapper_border_style=\u00bboutset\u00bb wrapper_rounded_topleft=\u00bb3&#8243; id_wrapper=\u00bbelm_5c828b0bd3fa6&#8243; ][st_item_accordion heading=\u00bb<img class=aligncenter src=http:\/\/servimatango.com\/negocios-rentables\/wp-content\/uploads\/2015\/07\/Boton-descarga-reporte.gif alt=Reporte width=500 height=145 \/>\u00bb id_wrapper=\u00bbelm_5c828b0bd3f58&#8243; ]<center><script type=\"text\/javascript\" src=\"http:\/\/app.getresponse.com\/view_webform.js?wid=10619501&#038;u=kSvx\"><\/script><\/center>[\/st_item_accordion][\/st_accordion]<\/p>\n<p><a href=\"https:\/\/www.servimatango.com\/blog\/desventajas-telefonia-ip\/\">Desventajas al Usar la Telefonia por Internet (VoIP)<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Contramedidas Para resguardar la capa de aplicaci\u00f3n de VoIP existen herramientas de seguridad en las redes de datos que pueden ser utilizadas para VoIP. Entre estas herramientas se encuentran: firewalls, antivirus y anti esp\u00edas ( antispyware ). Adem\u00e1s de estas herramientas, muy comunes en las redes de datos, se pueden encontrar 2 herramientas que ayudaran&#8230;<\/p>\n<p><a class=\"excerpt-read-more btn btn-primary\" href=\"https:\/\/servervoip.com\/blog\/contramedidad-voip\/\" title=\"ReadContramedidad VoIP\">Read More<\/a><\/p>\n","protected":false},"author":1,"featured_media":7025,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"image","meta":[],"categories":[1],"tags":[1929,1933,1930,1932,1931],"_links":{"self":[{"href":"https:\/\/servervoip.com\/blog\/wp-json\/wp\/v2\/posts\/7024"}],"collection":[{"href":"https:\/\/servervoip.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/servervoip.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/servervoip.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/servervoip.com\/blog\/wp-json\/wp\/v2\/comments?post=7024"}],"version-history":[{"count":0,"href":"https:\/\/servervoip.com\/blog\/wp-json\/wp\/v2\/posts\/7024\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/servervoip.com\/blog\/wp-json\/wp\/v2\/media\/7025"}],"wp:attachment":[{"href":"https:\/\/servervoip.com\/blog\/wp-json\/wp\/v2\/media?parent=7024"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/servervoip.com\/blog\/wp-json\/wp\/v2\/categories?post=7024"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/servervoip.com\/blog\/wp-json\/wp\/v2\/tags?post=7024"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}