{"id":38553,"date":"2021-05-04T16:03:00","date_gmt":"2021-05-04T14:03:00","guid":{"rendered":"https:\/\/www.hostinet.com\/formacion\/?p=38553"},"modified":"2021-05-04T16:27:31","modified_gmt":"2021-05-04T14:27:31","slug":"spam-protection-by-cleantalk-problemas-de-seguridad","status":"publish","type":"post","link":"https:\/\/www.hostinet.com\/formacion\/wordpress\/spam-protection-by-cleantalk-problemas-de-seguridad\/","title":{"rendered":"Spam Protection by CleanTalk &#8211; Problemas de Seguridad"},"content":{"rendered":" <!-- x0 --><div style=\"min-height: 30px; margin-top: 0px; padding-bottom: 7px; z-index: 1;position: relative; float: none;\" class=\"social-container\"><\/div><h4><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-38561\" src=\"https:\/\/www.hostinet.com\/formacion\/wp-content\/uploads\/2021\/05\/spam-protectione-cleantalk-seguridad.jpg\" alt=\"Spam Protection by CleanTalk - Problemas de Seguridad\" width=\"600\" height=\"350\" srcset=\"https:\/\/www.hostinet.com\/formacion\/wp-content\/uploads\/2021\/05\/spam-protectione-cleantalk-seguridad.jpg 600w, https:\/\/www.hostinet.com\/formacion\/wp-content\/uploads\/2021\/05\/spam-protectione-cleantalk-seguridad-500x292.jpg 500w, https:\/\/www.hostinet.com\/formacion\/wp-content\/uploads\/2021\/05\/spam-protectione-cleantalk-seguridad-350x204.jpg 350w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/h4>\n<h4>El plugin Spam \u00abProtection by CleanTalk\u00bb tiene un problema de seguridad que se ha solucionado con \u00e9xito en la \u00faltima versi\u00f3n del plugin. Si eres uno de sus 100 mil usuarios, comprueba que est\u00e1 actualizado en todas las instalaciones de tus WordPress.<\/h4>\n<p>El plugin <strong>Protecci\u00f3n contra correo no deseado, Antispam, FireWall de CleanTalk<\/strong> es el preferido por muchos administradores de WordPress para <strong>luchar contra el molesto spam<\/strong>.<\/p>\n<p>Desde Wordfence informaron al equipo de desarrollo del plugin que ten\u00edan <strong>un problema de seguridad en el c\u00f3digo del plugin<\/strong>.<\/p>\n<p>Se realiz\u00f3 una <strong>prueba de concepto<\/strong> y comprobaron que, efectivamente, era posible <strong>inyectar c\u00f3digo malicioso en la base de datos MySQL<\/strong>.<\/p>\n<p>Los desarrolladores repararon este error en la versi\u00f3n <strong>5.153.4<\/strong> del plugin, por lo que s\u00f3lo hay que <strong>comprobar que el plugin est\u00e1 actualizado<\/strong> en la versi\u00f3n indicada o superior, ya va por la <strong>5.157.1<\/strong>.<\/p>\n<p>Al tratarse de una prueba de concepto, <strong>no se ha detectado ning\u00fan problema de seguridad al respecto<\/strong>. Esto quiere decir que nadie se ha aprovechado de este problema de seguridad&#8230; <strong>\u00a1al menos hasta ahora!<\/strong><\/p>\n<hr \/>\n<p><a href=\"https:\/\/www.hostinet.com\/hosting-web\/\" target=\"_blank\"><img decoding=\"async\" class=\"alignnone size-full\" src=\"https:\/\/www.hostinet.com\/formacion\/wp-content\/uploads\/2024\/03\/banner_hostinet_generico.jpg\" alt=\"Hosting Gen\u00e9rico\"><\/a><\/p>\n<hr \/>\n<h2 id=\"spam-protection-by-cleantalk-para-wordpress\">Spam Protection by CleanTalk para WordPress<\/h2>\n<p>Como hemos comentado, s\u00f3lo hace falta comprobar que el plugin <strong>Spam Protection by CleanTalk<\/strong> est\u00e1 actualizado para <em>\u00abestar a salvo\u00bb<\/em>.<\/p>\n<p>Si el problema lo hubiese detectado un atacante antes que el equipo de Wordfence, posiblemente se habr\u00eda visto comprometida alguna web, pero no es el caso, as\u00ed que con <strong>actualizar el plugin a la versi\u00f3n parcheada es suficiente<\/strong>.<\/p>\n<h3 id=\"time-based-blind-sql-injection-exploit\">Time-Based Blind SQL Injection Exploit<\/h3>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-38558\" src=\"https:\/\/www.hostinet.com\/formacion\/wp-content\/uploads\/2021\/05\/time-based-blind-sql-injection.jpg\" alt=\"Time-Based Blind SQL Injection Exploit hack\" width=\"600\" height=\"400\" srcset=\"https:\/\/www.hostinet.com\/formacion\/wp-content\/uploads\/2021\/05\/time-based-blind-sql-injection.jpg 600w, https:\/\/www.hostinet.com\/formacion\/wp-content\/uploads\/2021\/05\/time-based-blind-sql-injection-500x333.jpg 500w, https:\/\/www.hostinet.com\/formacion\/wp-content\/uploads\/2021\/05\/time-based-blind-sql-injection-350x233.jpg 350w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/p>\n<p>Seg\u00fan cuentan en <a title=\"SQL Injection Vulnerability Patched in CleanTalk AntiSpam Plugin\" href=\"https:\/\/www.wordfence.com\/blog\/2021\/05\/sql-injection-vulnerability-patched-in-cleantalk-antispam-plugin\/\" target=\"_blank\" rel=\"nofollow noopener\">su art\u00edculo en el blog de Wordfence<\/a> (en ingl\u00e9s), el plugin ten\u00eda muchas medidas de seguridad muy bien implementadas para <strong>evitar la inyecci\u00f3n de c\u00f3digo MySQL<\/strong>.<\/p>\n<p>Pero utilizando una t\u00e9cnica llamada <strong>Time-Based Blind SQL Injection<\/strong>, algo que se podr\u00eda traducir como <em>\u00abinyecci\u00f3n SQL ciega de tiempo\u00bb<\/em> , consiguieron explotar con \u00e9xito el problema de seguridad en el plugin <strong>Spam Protection<\/strong>.<\/p>\n<p>La t\u00e9cnica no deja de ser curiosa, ya que se trata de <strong>enviar consultas la base de datos de forma aleatoria<\/strong>, pero de tal forma que, en el caso de que acertaran la consulta, <strong>la base de datos tardar\u00eda cierto tiempo en responder<\/strong>.<\/p>\n<p>Es decir, se env\u00eda una solicitud y en ella se le pregunta a la base de datos si la primera letra es la <em>\u00aba\u00bb<\/em> y en caso afirmativo, que responda pasados 3, 5 o 10 segundos, como se configure.<\/p>\n<p>De esta forma e<strong>l atacante podr\u00eda resolver<\/strong> cu\u00e1l es, por ejemplo, la cuenta de correo del administrador, o <strong>cualquier otro dato relevante<\/strong>.<\/p>\n<p>Existen formas en WordPress para preparar las consultas antes de que sean enviadas y que no se pueda explotar esta vulnerabilidad, que es lo que se ha solucionado en las versiones de parcheadas del plugin <strong>Spam protection, AntiSpam, FireWall by CleanTalk<\/strong>.<\/p>\n<p>&nbsp;<\/p>\n<h2 id=\"cosas-a-tener-en-cuenta\">Cosas a Tener en Cuenta<\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-medium wp-image-23129\" src=\"https:\/\/www.hostinet.com\/formacion\/wp-content\/uploads\/2017\/09\/actualiza-banner-600x156.jpg\" alt=\"actualiza wordpress plugins y themes\" width=\"600\" height=\"156\" \/><\/p>\n<p>Como hemos comentado, <strong>no se ha detectado ning\u00fan ataque real<\/strong> en el plugin <strong>Spam Protection<\/strong>, pero eso no quiere decir que no lo puedan intentar en cualquier momento.<\/p>\n<p>Por suerte el problema lo detectaron los <em>\u00abbuenos\u00bb<\/em> antes que los<em>\u00abmalos\u00bb<\/em> y el equipo de desarrollo <strong>lo solucion\u00f3 r\u00e1pidamente<\/strong>.<\/p>\n<p>En realidad es lo m\u00e1s importante, que los desarrolladores lancen parches de seguridad al poco tiempo de detectarse cualquier problema, ya que <strong>el software perfecto parece que no existe<\/strong>.<\/p>\n<p>De todas formas, <strong>no sirve de nada si no actualizamos los plugins<\/strong> y tenemos versiones desactualizadas en nuestras instalaciones de WordPress.<\/p>\n<p>El plugin <strong>Spam Protection by CleanTalk<\/strong> est\u00e1 us\u00e1ndose en m\u00e1s de 100 mil instalaciones de WordPress, as\u00ed que aunque s\u00f3lo sea un peque\u00f1o porcentaje el de los usuarios que no actualicen, <strong>cientos o miles de webs pueden verse afectadas<\/strong>.<\/p>\n<p>C\u00f3mo siempre, mantener los plugins, themes y WordPress actualizados, <strong>suele ser la mejor defensa<\/strong> ante los ataques m\u00e1s comunes.<\/p>\n<h2 id=\"hosting-wordpress-con-seguridad-antimalware\">Hosting WordPress con Seguridad AntiMalware<\/h2>\n<p>En <strong>Hostinet<\/strong> disponemos de un <strong>sistema de seguridad antimalware<\/strong> en <a title=\"Hosting con IP espa\u00f1ola\" href=\"https:\/\/www.hostinet.com\/hosting-web\/\" target=\"_blank\" rel=\"noopener\">todos los alojamientos web que ofrecemos<\/a>.<\/p>\n<p>Si alg\u00fan problema de seguridad afecta a tu WordPress y un atacante consigue <strong>a\u00f1adir malware en cualquiera de los archivos<\/strong>, podemos detectarlo y aislarlo para que el problema no vaya a mayores.<\/p>\n<p>Esta medida de seguridad est\u00e1 incluida en <strong>todos los hosting WordPress que ofrecemos<\/strong>:<\/p>\n<p><a href=\"https:\/\/www.hostinet.com\/hosting-wordpress\/\" target=\"_blank\"><img decoding=\"async\" class=\"alignnone size-full\" src=\"https:\/\/www.hostinet.com\/formacion\/wp-content\/uploads\/2026\/03\/banner_hosting_wordpress.jpg\" alt=\"Hosting WordPress\"><\/a><\/p>\n<div style=\"min-height: 30px; margin-top: 0px; padding-bottom: 7px; z-index: 1;position: relative; float: none;\" class=\"social-container\"><\/div> <!-- x1 -->","protected":false},"excerpt":{"rendered":"<p>El plugin Spam \u00abProtection by CleanTalk\u00bb tiene un problema de seguridad que se ha solucionado con \u00e9xito en la \u00faltima versi\u00f3n del plugin. Si eres uno de sus 100 mil usuarios, comprueba que est\u00e1 actualizado en todas las instalaciones de tus WordPress. El plugin Protecci\u00f3n contra correo no deseado, Antispam,\u2026 <\/p>\n<div class=\"post-more\">\n<p><a class=\"btn button\" href=\"https:\/\/www.hostinet.com\/formacion\/wordpress\/spam-protection-by-cleantalk-problemas-de-seguridad\/\">Sigue leyendo &rarr;<\/a><\/p>\n<\/div>\n","protected":false},"author":14,"featured_media":38561,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1783],"tags":[],"class_list":["post-38553","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-wordpress"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Spam Protection by CleanTalk - Problemas de Seguridad<\/title>\n<meta name=\"description\" content=\"El plugin Spam &quot;Protection by CleanTalk&quot; tiene un problema de seguridad que se ha solucionado con \u00e9xito en la \u00faltima versi\u00f3n del plugin. Si eres uno de\" \/>\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.hostinet.com\/formacion\/wordpress\/spam-protection-by-cleantalk-problemas-de-seguridad\/\" \/>\n<meta property=\"og:locale\" content=\"es_ES\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Spam Protection by CleanTalk - Problemas de Seguridad\" \/>\n<meta property=\"og:description\" content=\"El plugin Spam &quot;Protection by CleanTalk&quot; tiene un problema de seguridad que se ha solucionado con \u00e9xito en la \u00faltima versi\u00f3n del plugin. 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