{"id":451,"date":"2024-03-27T07:16:01","date_gmt":"2024-03-27T04:16:01","guid":{"rendered":"https:\/\/sms-txt.net\/?p=451"},"modified":"2024-09-05T12:46:16","modified_gmt":"2024-09-05T09:46:16","slug":"ameacas-basicas-do-ss7","status":"publish","type":"post","link":"https:\/\/sms-txt.net\/pt\/ss7-sms\/ameacas-basicas-do-ss7\/","title":{"rendered":"Amea\u00e7as b\u00e1sicas do SS7"},"content":{"rendered":"<h2>Enfatizamos esses perigos que podem ser introduzidos por pessoas que exploram defeitos de seguran\u00e7a em redes m\u00f3veis:<\/h2>\n<ul>\n<li>Divulga\u00e7\u00e3o de informa\u00e7\u00f5es do assinante<\/li>\n<li>Divulga\u00e7\u00e3o de informa\u00e7\u00f5es de rede<\/li>\n<li>Intercepta\u00e7\u00e3o do tr\u00e1fego do assinante<\/li>\n<li>Fraude<\/li>\n<li>Nega\u00e7\u00e3o de servi\u00e7o<\/li>\n<\/ul>\n<p>Quase todos os riscos registrados refletem desafios econ\u00f4micos e de reputa\u00e7\u00e3o para o operador. Fraude, intercepta\u00e7\u00e3o de visitantes e nega\u00e7\u00e3o de servi\u00e7o afetam os assinantes imediatamente e podem causar decl\u00ednios fiscais, viola\u00e7\u00e3o da solid\u00e3o e dist\u00farbios de acessibilidade. A divulga\u00e7\u00e3o de informa\u00e7\u00f5es do assinante implica o congestionamento do IMSI, a divulga\u00e7\u00e3o de informa\u00e7\u00f5es alternativas ou do site, como informa\u00e7\u00f5es de perfil ou saldo. A divulga\u00e7\u00e3o de informa\u00e7\u00f5es sobre a rede est\u00e1 repleta de congestionamento das estat\u00edsticas de configura\u00e7\u00e3o da rede SS7.<\/p>\n<p>Procedimentos espec\u00edficos de intercepta\u00e7\u00e3o do tr\u00e1fego do assinante permitem que uma pessoa fa\u00e7a um faucet ou desvie a intercepta\u00e7\u00e3o e a chamada de mensagens SMS individuais. Os ataques de fraude podem ser feitos de forma contr\u00e1ria a cada operadora e assinante. Sempre que um acordo de custo for alterado por um intruso ou reiniciar o sistema de cobran\u00e7a, isso causar\u00e1 danos. J\u00e1 a movimenta\u00e7\u00e3o de fundos das contas de seus assinantes e o redirecionamento de chamadas ou a atualiza\u00e7\u00e3o para uma assinatura paga prejudicar\u00e3o os assinantes. Acreditamos que uma nega\u00e7\u00e3o de servi\u00e7o por parte dos assinantes, j\u00e1 que as operadoras podem permitir a triagem de coisas da rede que resultam em mau funcionamento da rede m\u00f3vel. O mau funcionamento se dissipar\u00e1 se os invasores possu\u00edrem uma base de assinantes ou at\u00e9 mesmo as ferramentas para fazer for\u00e7a bruta nos IMSIs. O grau de conhecimento das operadoras sobre a estabilidade do SS7 continua aumentando, e \u00e9 por isso que elas come\u00e7aram a executar m\u00e9todos de seguran\u00e7a. Em 2015, toda e qualquer rede era mais suscet\u00edvel a todo e qualquer tipo de risco. No entanto, nas duas d\u00e9cadas anteriores, foram encontradas tend\u00eancias na prote\u00e7\u00e3o da rede.<\/p>\n<p>&nbsp;<\/p>\n<p>A possibilidade de congestionamento de informa\u00e7\u00f5es de rede, fraude e intercepta\u00e7\u00e3o do tr\u00e1fego de assinantes diminuiu. Toda rede \u00e9 propensa a vulnerabilidades que permitem o uso de informa\u00e7\u00f5es sobre os assinantes ou at\u00e9 mesmo a nega\u00e7\u00e3o de servi\u00e7o. Aqui est\u00e3o listados os poderosos esfor\u00e7os de ataque realizados durante a investiga\u00e7\u00e3o de seguran\u00e7a por nossos profissionais.<\/p>\n<p>&nbsp;<\/p>\n<p>Conforme observado nesse valor, as operadoras priorizam medidas que diminuem a possibilidade de divulga\u00e7\u00e3o de informa\u00e7\u00f5es de rede e de assinantes, pois essas estat\u00edsticas seriam a base para v\u00e1rios ou at\u00e9 mais ataques. Em compara\u00e7\u00e3o com a gama de ataques de 2015, os ataques direcionados \u00e0 divulga\u00e7\u00e3o de informa\u00e7\u00f5es de rede diminu\u00edram quase tr\u00eas vezes. Em termos de ataques a informa\u00e7\u00f5es de assinantes. N\u00e3o \u00e9 t\u00e3o dif\u00edcil se proteger contra esses ataques, e o mercado de prote\u00e7\u00e3o de informa\u00e7\u00f5es tamb\u00e9m oferece prote\u00e7\u00e3o<\/p>\n<p>Op\u00e7\u00f5es. Cem por cento de todas as redes tendem a ser expostas a elas, e isso aponta para a inefici\u00eancia das op\u00e7\u00f5es.<\/p>\n<p>O n\u00famero de ataques que s\u00e3o bem-sucedidos na utiliza\u00e7\u00e3o de diferentes tipos de perigos \u00e9 insignificante. O principal motivo \u00e9 o fato de que a execu\u00e7\u00e3o dos visitantes-alvo n\u00e3o consegue compensar os defeitos de design do SS7. Para reduzi-los, a t\u00e1tica \u00e9 necess\u00e1ria.<\/p>\n<p>&nbsp;<\/p>\n<h2>Conclus\u00e3o:<\/h2>\n<p>Os estudos demonstraram que o n\u00edvel de seguran\u00e7a das redes de comunica\u00e7\u00e3o m\u00f3vel continua bastante baixo. A maioria das redes continua exposta, o que possibilita que os criminosos interceptem as mensagens de voz e as chamadas dos assinantes, executem procedimentos fraudulentos e tamb\u00e9m interrompam a acessibilidade das ag\u00eancias, como os assinantes.<\/p>\n<p>Os invasores est\u00e3o devidamente atentos \u00e0s vulnerabilidades atuais e tamb\u00e9m vimos os impactos de seus ataques, como ilustrado pelo epis\u00f3dio moderno que afetou os assinantes de um representante alem\u00e3o de telecomunica\u00e7\u00f5es, o que causou o roubo de dinheiro dos saldos banc\u00e1rios. Considerando o n\u00edvel de atividade, poderemos ter casos semelhantes em um futuro pr\u00f3ximo.<\/p>","protected":false},"excerpt":{"rendered":"<p>Destacamos esses perigos que podem ser introduzidos por pessoas que exploram defeitos de seguran\u00e7a em redes m\u00f3veis: Divulga\u00e7\u00e3o de informa\u00e7\u00f5es do assinante Divulga\u00e7\u00e3o de informa\u00e7\u00f5es da rede Intercepta\u00e7\u00e3o do tr\u00e1fego do assinante Fraude Nega\u00e7\u00e3o de servi\u00e7o Quase todos os perigos registrados refletem desafios econ\u00f4micos e de reputa\u00e7\u00e3o para a operadora. A fraude, a intercepta\u00e7\u00e3o de visitantes e a nega\u00e7\u00e3o de servi\u00e7o afetam os assinantes imediatamente e podem causar...<\/p>","protected":false},"author":1,"featured_media":1739,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[68,70,69,1],"tags":[],"class_list":["post-451","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-call-interception","category-location-tracking","category-sms-intercept","category-ss7-sms"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v26.7 (Yoast SEO v26.7) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Basic SS7 threats<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/sms-txt.net\/pt\/ss7-sms\/ameacas-basicas-do-ss7\/\" \/>\n<meta property=\"og:locale\" content=\"pt_BR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Basic SS7 threats\" \/>\n<meta property=\"og:description\" content=\"We emphasize These dangers That May Be introduced by people exploiting security defects in mobile networks: Subscriber information disclosure Network information disclosure Subscriber traffic interception Fraud Denial of service Just about every recorded hazard reflects reputation and economic challenges for its operator. 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