{"id":24202,"date":"2026-05-19T08:00:00","date_gmt":"2026-05-19T11:00:00","guid":{"rendered":"https:\/\/www.ethicalhacker.com.br\/site\/?p=24202"},"modified":"2026-05-13T19:53:43","modified_gmt":"2026-05-13T22:53:43","slug":"s-22","status":"publish","type":"post","link":"https:\/\/www.ethicalhacker.com.br\/site\/2026\/05\/exploits\/s-22\/","title":{"rendered":"Falha no Linux permite acesso root"},"content":{"rendered":"\n<p style=\"text-align: justify;\" data-section-id=\"n6lta4\" data-start=\"0\" data-end=\"80\"><strong>Copy Fail: A falha cr\u00edtica no Linux que permite acesso root a Qualquer Usu\u00e1rio<\/strong><\/p>\n<p style=\"text-align: justify;\" data-start=\"97\" data-end=\"402\">A seguran\u00e7a do sistema operacional Linux sempre foi sustentada por um dos pilares mais s\u00f3lidos da computa\u00e7\u00e3o: o <strong data-start=\"209\" data-end=\"245\">controle rigoroso de privil\u00e9gios<\/strong>. No entanto, uma vulnerabilidade recentemente divulgada exp\u00f4s uma falha grave nesse modelo, permitindo que usu\u00e1rios comuns obtenham acesso total ao sistema.<\/p>\n<p style=\"text-align: justify;\" data-start=\"404\" data-end=\"740\">Identificada como <strong data-start=\"422\" data-end=\"440\">CVE-2026-31431<\/strong> e apelidada de <em data-start=\"456\" data-end=\"467\">Copy Fail<\/em>, essa vulnerabilidade afeta o kernel Linux e evidencia como falhas estruturais podem comprometer at\u00e9 mesmo sistemas considerados altamente seguros. Neste artigo, analisamos tecnicamente o problema, seus impactos e as implica\u00e7\u00f5es estrat\u00e9gicas para a ciberseguran\u00e7a moderna.<\/p>\n<p data-start=\"404\" data-end=\"740\">\u00a0<\/p>\n<p style=\"text-align: justify;\" data-section-id=\"130fttb\" data-start=\"747\" data-end=\"798\"><strong>O incidente: Uma falha de d\u00e9cada no kernel linux<\/strong><\/p>\n<p style=\"text-align: justify;\" data-start=\"800\" data-end=\"952\">Pesquisadores da empresa de seguran\u00e7a ofensiva Theori identificaram uma vulnerabilidade cr\u00edtica que permite a escalada de privil\u00e9gios em sistemas Linux.<\/p>\n<p style=\"text-align: justify;\" data-start=\"954\" data-end=\"980\">Principais pontos do caso:<\/p>\n<ul style=\"text-align: justify;\" data-start=\"982\" data-end=\"1260\">\n<li data-section-id=\"rxnno5\" data-start=\"982\" data-end=\"1021\">\n<p>A falha existe h\u00e1 <strong data-start=\"1002\" data-end=\"1019\">quase 10 anos<\/strong><\/p>\n<\/li>\n<li data-section-id=\"n79r7t\" data-start=\"1022\" data-end=\"1057\">\n<p>Afeta sistemas Linux desde 2017<\/p>\n<\/li>\n<li data-section-id=\"dmp8rj\" data-start=\"1058\" data-end=\"1116\">\n<p>Permite que qualquer usu\u00e1rio local obtenha acesso root<\/p>\n<\/li>\n<li data-section-id=\"vchtoc\" data-start=\"1117\" data-end=\"1169\">\n<p>Um exploit funcional possui apenas <strong data-start=\"1154\" data-end=\"1167\">732 bytes<\/strong><\/p>\n<\/li>\n<li data-section-id=\"vh2ahi\" data-start=\"1170\" data-end=\"1260\">\n<p>C\u00f3digo de ataque j\u00e1 est\u00e1 dispon\u00edvel publicamente<\/p>\n<\/li>\n<\/ul>\n<p style=\"text-align: justify;\" data-start=\"1262\" data-end=\"1373\">Essa combina\u00e7\u00e3o \u2014 simplicidade de explora\u00e7\u00e3o e ampla exposi\u00e7\u00e3o \u2014 torna a vulnerabilidade extremamente perigosa.<\/p>\n<p data-start=\"1262\" data-end=\"1373\">\u00a0<\/p>\n<p style=\"text-align: justify;\" data-section-id=\"w5lz78\" data-start=\"1380\" data-end=\"1429\"><strong>Entendendo o problema: Escalada de privil\u00e9gios<\/strong><\/p>\n<p style=\"text-align: justify;\" data-start=\"1431\" data-end=\"1642\">O Linux \u00e9 um sistema multiusu\u00e1rio baseado em n\u00edveis de acesso bem definidos. O usu\u00e1rio <strong data-start=\"1518\" data-end=\"1526\">root<\/strong> possui controle total, enquanto usu\u00e1rios comuns possuem permiss\u00f5es limitadas .<\/p>\n<p style=\"text-align: justify;\" data-start=\"1644\" data-end=\"1707\">A vulnerabilidade Copy Fail quebra esse modelo ao permitir que:<\/p>\n<ul style=\"text-align: justify;\" data-start=\"1709\" data-end=\"1814\">\n<li data-section-id=\"vnpoj2\" data-start=\"1709\" data-end=\"1739\">\n<p>Um usu\u00e1rio sem privil\u00e9gios<\/p>\n<\/li>\n<li data-section-id=\"1g7bfpo\" data-start=\"1740\" data-end=\"1769\">\n<p>Execute c\u00f3digo espec\u00edfico<\/p>\n<\/li>\n<li data-section-id=\"u87wmj\" data-start=\"1770\" data-end=\"1814\">\n<p>E obtenha acesso administrativo completo<\/p>\n<\/li>\n<\/ul>\n<p style=\"text-align: justify;\" data-start=\"1816\" data-end=\"1952\">Esse processo \u00e9 conhecido como <strong data-start=\"1847\" data-end=\"1879\">Escalonamento de privil\u00e9gios<\/strong>, onde falhas permitem que n\u00edveis de acesso sejam indevidamente elevados.<\/p>\n<p data-start=\"1816\" data-end=\"1952\">\u00a0<\/p>\n<p style=\"text-align: justify;\" data-section-id=\"1qwqv0g\" data-start=\"1959\" data-end=\"1993\"><strong>Como a vulnerabilidade funciona<\/strong><\/p>\n<p style=\"text-align: justify;\" data-start=\"1995\" data-end=\"2103\">Embora detalhes t\u00e9cnicos completos n\u00e3o tenham sido divulgados publicamente, o comportamento da falha indica:<\/p>\n<p style=\"text-align: justify;\" data-section-id=\"9878e6\" data-start=\"2105\" data-end=\"2159\"><strong>1. Manipula\u00e7\u00e3o de mem\u00f3ria ou permiss\u00f5es internas<\/strong><\/p>\n<p style=\"text-align: justify;\" data-start=\"2160\" data-end=\"2219\">O sistema falha ao validar corretamente opera\u00e7\u00f5es cr\u00edticas.<\/p>\n<p data-start=\"2160\" data-end=\"2219\">\u00a0<\/p>\n<p style=\"text-align: justify;\" data-section-id=\"d49lmj\" data-start=\"2221\" data-end=\"2258\"><strong>2. Execu\u00e7\u00e3o de c\u00f3digo malicioso<\/strong><\/p>\n<p style=\"text-align: justify;\" data-start=\"2259\" data-end=\"2312\">Um script pequeno \u00e9 suficiente para explorar a falha.<\/p>\n<p data-start=\"2259\" data-end=\"2312\">\u00a0<\/p>\n<p style=\"text-align: justify;\" data-section-id=\"11584eh\" data-start=\"2314\" data-end=\"2346\"><strong>3. Eleva\u00e7\u00e3o de privil\u00e9gios<\/strong><\/p>\n<p style=\"text-align: justify;\" data-start=\"2347\" data-end=\"2388\">O usu\u00e1rio comum passa a operar como root.<\/p>\n<p data-start=\"2347\" data-end=\"2388\">\u00a0<\/p>\n<p style=\"text-align: justify;\" data-section-id=\"1u8i6bn\" data-start=\"2390\" data-end=\"2424\"><strong>4. Controle total do sistema<\/strong><\/p>\n<p style=\"text-align: justify;\" data-start=\"2425\" data-end=\"2492\">O atacante pode modificar, instalar ou remover qualquer componente.<\/p>\n<p style=\"text-align: justify;\" data-start=\"2494\" data-end=\"2590\">Esse tipo de falha ocorre diretamente no <strong data-start=\"2535\" data-end=\"2545\">kernel<\/strong>, tornando sua explora\u00e7\u00e3o ainda mais cr\u00edtica.<\/p>\n<p data-start=\"2494\" data-end=\"2590\">\u00a0<\/p>\n<p style=\"text-align: justify;\" data-section-id=\"bemc7x\" data-start=\"2597\" data-end=\"2642\"><strong>Compara\u00e7\u00e3o com vulnerabilidades hist\u00f3ricas<\/strong><\/p>\n<p style=\"text-align: justify;\" data-start=\"2644\" data-end=\"2721\">O Linux j\u00e1 enfrentou falhas semelhantes no passado, como o caso do Dirty COW.<\/p>\n<p style=\"text-align: justify;\" data-start=\"2723\" data-end=\"2768\">Assim como a Copy Fail, essa vulnerabilidade:<\/p>\n<ul style=\"text-align: justify;\" data-start=\"2770\" data-end=\"2919\">\n<li data-section-id=\"ftw1u1\" data-start=\"2770\" data-end=\"2806\">\n<p>Permitia escalada de privil\u00e9gios<\/p>\n<\/li>\n<li data-section-id=\"igsgkr\" data-start=\"2807\" data-end=\"2842\">\n<p>Afetava m\u00faltiplas distribui\u00e7\u00f5es<\/p>\n<\/li>\n<li data-section-id=\"18wkikp\" data-start=\"2843\" data-end=\"2885\">\n<p>Era explor\u00e1vel com baixo n\u00edvel t\u00e9cnico<\/p>\n<\/li>\n<li data-section-id=\"1tg6mtd\" data-start=\"2886\" data-end=\"2919\">\n<p>N\u00e3o deixava rastros evidentes<\/p>\n<\/li>\n<\/ul>\n<p style=\"text-align: justify;\" data-start=\"2921\" data-end=\"3002\">Esse hist\u00f3rico demonstra que falhas desse tipo n\u00e3o s\u00e3o isoladas, mas recorrentes.<\/p>\n<p data-start=\"2921\" data-end=\"3002\">\u00a0<\/p>\n<p style=\"text-align: justify;\" data-section-id=\"jo29ub\" data-start=\"3009\" data-end=\"3054\"><strong>Impacto: Controle total com esfor\u00e7o m\u00ednimo<\/strong><\/p>\n<p style=\"text-align: justify;\" data-start=\"3056\" data-end=\"3099\">As consequ\u00eancias da explora\u00e7\u00e3o s\u00e3o severas:<\/p>\n<p style=\"text-align: justify;\" data-section-id=\"9x522p\" data-start=\"3101\" data-end=\"3145\"><strong>1. Comprometimento completo do sistema<\/strong><\/p>\n<p style=\"text-align: justify;\" data-start=\"3146\" data-end=\"3203\">O atacante pode alterar qualquer arquivo ou configura\u00e7\u00e3o.<\/p>\n<p data-start=\"3146\" data-end=\"3203\">\u00a0<\/p>\n<p style=\"text-align: justify;\" data-section-id=\"1887fi5\" data-start=\"3205\" data-end=\"3247\"><strong>2. Instala\u00e7\u00e3o de malware persistente<\/strong><\/p>\n<p style=\"text-align: justify;\" data-start=\"3248\" data-end=\"3291\">Backdoors e rootkits podem ser implantados.<\/p>\n<p data-start=\"3248\" data-end=\"3291\">\u00a0<\/p>\n<p style=\"text-align: justify;\" data-section-id=\"11po0ao\" data-start=\"3293\" data-end=\"3326\"><strong>3. Acesso a dados sens\u00edveis<\/strong><\/p>\n<p style=\"text-align: justify;\" data-start=\"3327\" data-end=\"3367\">Informa\u00e7\u00f5es cr\u00edticas podem ser roubadas.<\/p>\n<p data-start=\"3327\" data-end=\"3367\">\u00a0<\/p>\n<p style=\"text-align: justify;\" data-section-id=\"2srmey\" data-start=\"3369\" data-end=\"3398\"><strong>4. Movimenta\u00e7\u00e3o lateral<\/strong><\/p>\n<p style=\"text-align: justify;\" data-start=\"3399\" data-end=\"3469\">O sistema comprometido pode ser usado para atacar outros dispositivos.<\/p>\n<p data-start=\"3399\" data-end=\"3469\">\u00a0<\/p>\n<p style=\"text-align: justify;\" data-section-id=\"127js6t\" data-start=\"3476\" data-end=\"3513\"><strong>Por que essa falha \u00e9 t\u00e3o perigosa?<\/strong><\/p>\n<p style=\"text-align: justify;\" data-start=\"3515\" data-end=\"3580\">Alguns fatores tornam essa vulnerabilidade especialmente cr\u00edtica:<\/p>\n<ul style=\"text-align: justify;\" data-start=\"3582\" data-end=\"3735\">\n<li data-section-id=\"1lifcs8\" data-start=\"3582\" data-end=\"3625\">\n<p><strong data-start=\"3584\" data-end=\"3606\">Explora\u00e7\u00e3o simples<\/strong> (script pequeno)<\/p>\n<\/li>\n<li data-section-id=\"16l3uv5\" data-start=\"3626\" data-end=\"3659\">\n<p><strong data-start=\"3628\" data-end=\"3657\">C\u00f3digo p\u00fablico dispon\u00edvel<\/strong><\/p>\n<\/li>\n<li data-section-id=\"qhm1x8\" data-start=\"3660\" data-end=\"3697\">\n<p><strong data-start=\"3662\" data-end=\"3695\">Afeta m\u00faltiplas distribui\u00e7\u00f5es<\/strong><\/p>\n<\/li>\n<li data-section-id=\"m7ig2n\" data-start=\"3698\" data-end=\"3735\">\n<p><strong data-start=\"3700\" data-end=\"3733\">Presente h\u00e1 anos sem detec\u00e7\u00e3o<\/strong><\/p>\n<\/li>\n<\/ul>\n<p style=\"text-align: justify;\" data-start=\"3737\" data-end=\"3794\">Al\u00e9m disso, basta acesso local \u2014 que pode ser obtido por:<\/p>\n<ul style=\"text-align: justify;\" data-start=\"3796\" data-end=\"3856\">\n<li data-section-id=\"1t6dtia\" data-start=\"3796\" data-end=\"3808\">\n<p>Phishing<\/p>\n<\/li>\n<li data-section-id=\"1n7w3il\" data-start=\"3809\" data-end=\"3838\">\n<p>Credenciais comprometidas<\/p>\n<\/li>\n<li data-section-id=\"2pyicd\" data-start=\"3839\" data-end=\"3856\">\n<p>Acesso f\u00edsico<\/p>\n<\/li>\n<\/ul>\n<p>\u00a0<\/p>\n<p style=\"text-align: justify;\" data-section-id=\"1s2s2ci\" data-start=\"3863\" data-end=\"3896\"><strong>O papel do kernel na seguran\u00e7a<\/strong><\/p>\n<p style=\"text-align: justify;\" data-start=\"3898\" data-end=\"3958\">O kernel \u00e9 o n\u00facleo do sistema operacional, respons\u00e1vel por:<\/p>\n<ul style=\"text-align: justify;\" data-start=\"3960\" data-end=\"4028\">\n<li data-section-id=\"spwrra\" data-start=\"3960\" data-end=\"3981\">\n<p>Gerenciar mem\u00f3ria<\/p>\n<\/li>\n<li data-section-id=\"dwh7\" data-start=\"3982\" data-end=\"4005\">\n<p>Controlar processos<\/p>\n<\/li>\n<li data-section-id=\"4amm43\" data-start=\"4006\" data-end=\"4028\">\n<p>Definir permiss\u00f5es<\/p>\n<\/li>\n<\/ul>\n<p style=\"text-align: justify;\" data-start=\"4030\" data-end=\"4145\">Uma falha nesse n\u00edvel compromete toda a estrutura de seguran\u00e7a, pois permite contornar todas as camadas superiores.<\/p>\n<p data-start=\"4030\" data-end=\"4145\">\u00a0<\/p>\n<p style=\"text-align: justify;\" data-section-id=\"1y8aey1\" data-start=\"4152\" data-end=\"4203\"><strong>Tend\u00eancia: Explora\u00e7\u00e3o de vulnerabilidades locais<\/strong><\/p>\n<p style=\"text-align: justify;\" data-start=\"4205\" data-end=\"4249\">Ataques modernos seguem um padr\u00e3o crescente:<\/p>\n<ul style=\"text-align: justify;\" data-start=\"4251\" data-end=\"4364\">\n<li data-section-id=\"g3waf\" data-start=\"4251\" data-end=\"4289\">\n<p>Acesso inicial (baixo privil\u00e9gio)<\/p>\n<\/li>\n<li data-section-id=\"145w01t\" data-start=\"4290\" data-end=\"4320\">\n<p>Explora\u00e7\u00e3o de falha local<\/p>\n<\/li>\n<li data-section-id=\"1vc9ibk\" data-start=\"4321\" data-end=\"4344\">\n<p>Escalada para root<\/p>\n<\/li>\n<li data-section-id=\"1lj5rj3\" data-start=\"4345\" data-end=\"4364\">\n<p>Controle total<\/p>\n<\/li>\n<\/ul>\n<p style=\"text-align: justify;\" data-start=\"4366\" data-end=\"4433\">Esse modelo \u00e9 amplamente utilizado por grupos de ransomware e APTs.<\/p>\n<p data-start=\"4366\" data-end=\"4433\">\u00a0<\/p>\n<p style=\"text-align: justify;\" data-section-id=\"i27oj9\" data-start=\"4440\" data-end=\"4482\"><strong>Li\u00e7\u00f5es estrat\u00e9gicas para ciberseguran\u00e7a<\/strong><\/p>\n<p style=\"text-align: justify;\" data-start=\"4484\" data-end=\"4520\">O incidente refor\u00e7a pontos cr\u00edticos:<\/p>\n<p style=\"text-align: justify;\" data-section-id=\"xpxuff\" data-start=\"4522\" data-end=\"4553\"><strong>1. Nenhum sistema \u00e9 imune<\/strong><\/p>\n<p style=\"text-align: justify;\" data-start=\"4554\" data-end=\"4598\">Mesmo o Linux pode apresentar falhas graves.<\/p>\n<p data-start=\"4554\" data-end=\"4598\">\u00a0<\/p>\n<p style=\"text-align: justify;\" data-section-id=\"wn91c1\" data-start=\"4600\" data-end=\"4636\"><strong>2. Atualiza\u00e7\u00f5es s\u00e3o essenciais<\/strong><\/p>\n<p style=\"text-align: justify;\" data-start=\"4637\" data-end=\"4682\">Corre\u00e7\u00f5es precisam ser aplicadas rapidamente.<\/p>\n<p data-start=\"4637\" data-end=\"4682\">\u00a0<\/p>\n<p style=\"text-align: justify;\" data-section-id=\"htwwck\" data-start=\"4684\" data-end=\"4715\"><strong>3. Monitoramento cont\u00ednuo<\/strong><\/p>\n<p style=\"text-align: justify;\" data-start=\"4716\" data-end=\"4772\">Atividades suspeitas devem ser detectadas em tempo real.<\/p>\n<p data-start=\"4716\" data-end=\"4772\">\u00a0<\/p>\n<p style=\"text-align: justify;\" data-section-id=\"b5taap\" data-start=\"4774\" data-end=\"4812\"><strong>4. Princ\u00edpio do menor privil\u00e9gio<\/strong><\/p>\n<p style=\"text-align: justify;\" data-start=\"4813\" data-end=\"4866\">Deve ser refor\u00e7ado com m\u00faltiplas camadas de prote\u00e7\u00e3o.<\/p>\n<p data-start=\"4813\" data-end=\"4866\">\u00a0<\/p>\n<p style=\"text-align: justify;\" data-section-id=\"1epdrcw\" data-start=\"4873\" data-end=\"4900\"><strong>Estrat\u00e9gias de mitiga\u00e7\u00e3o<\/strong><\/p>\n<p style=\"text-align: justify;\" data-start=\"4902\" data-end=\"4936\">Para reduzir riscos, recomenda-se:<\/p>\n<ul style=\"text-align: justify;\" data-start=\"4938\" data-end=\"5142\">\n<li data-section-id=\"1s466ed\" data-start=\"4938\" data-end=\"4984\">\n<p>Aplicar patches de seguran\u00e7a imediatamente<\/p>\n<\/li>\n<li data-section-id=\"1cv2gy4\" data-start=\"4985\" data-end=\"5032\">\n<p>Restringir acesso local a sistemas cr\u00edticos<\/p>\n<\/li>\n<li data-section-id=\"jx8yuc\" data-start=\"5033\" data-end=\"5068\">\n<p>Monitorar execu\u00e7\u00e3o de processos<\/p>\n<\/li>\n<li data-section-id=\"flhylj\" data-start=\"5069\" data-end=\"5101\">\n<p>Implementar solu\u00e7\u00f5es EDR\/XDR<\/p>\n<\/li>\n<li data-section-id=\"177hceh\" data-start=\"5102\" data-end=\"5142\">\n<p>Utilizar pol\u00edticas de <strong data-start=\"5126\" data-end=\"5140\">Zero Trust<\/strong><\/p>\n<\/li>\n<\/ul>\n<p style=\"text-align: justify;\" data-start=\"5144\" data-end=\"5232\">Al\u00e9m disso, auditorias regulares s\u00e3o fundamentais para detectar comportamentos an\u00f4malos.<\/p>\n<p data-start=\"5144\" data-end=\"5232\">\u00a0<\/p>\n<p style=\"text-align: justify;\" data-section-id=\"h85oci\" data-start=\"5239\" data-end=\"5251\"><strong>Conclus\u00e3o<\/strong><\/p>\n<p style=\"text-align: justify;\" data-start=\"5253\" data-end=\"5507\">A vulnerabilidade Copy Fail representa um dos exemplos mais cr\u00edticos de falhas no kernel Linux nos \u00faltimos anos. Ao permitir que qualquer usu\u00e1rio obtenha acesso root com facilidade, ela compromete diretamente o modelo de seguran\u00e7a que sustenta o sistema.<\/p>\n<p style=\"text-align: justify;\" data-start=\"5509\" data-end=\"5801\">Esse incidente refor\u00e7a uma realidade inevit\u00e1vel: a seguran\u00e7a n\u00e3o depende da aus\u00eancia de falhas, mas da capacidade de identific\u00e1-las e corrigi-las rapidamente. Em um cen\u00e1rio onde exploits s\u00e3o disponibilizados publicamente em quest\u00e3o de horas, o tempo de resposta torna-se o fator mais cr\u00edtico.<\/p>\n<p style=\"text-align: justify;\" data-start=\"5803\" data-end=\"5961\">No mundo da ciberseguran\u00e7a, confiar na robustez de um sistema n\u00e3o \u00e9 suficiente \u2014 \u00e9 necess\u00e1rio assumir que falhas existem e agir continuamente para mitig\u00e1-las.<\/p>\n<p data-start=\"5803\" data-end=\"5961\">\u00a0<\/p>\n<p style=\"text-align: justify;\" data-section-id=\"1bfeuhi\" data-start=\"5968\" data-end=\"5997\"><strong>Refer\u00eancias Bibliogr\u00e1ficas<\/strong><\/p>\n<ul data-start=\"5999\" data-end=\"6408\">\n<li data-section-id=\"l0uf0y\" data-start=\"5999\" data-end=\"6240\"><strong>TecMundo.<\/strong> <em data-start=\"6012\" data-end=\"6073\">Falha grave no Linux permite acesso root a qualquer usu\u00e1rio<\/em>. Dispon\u00edvel em:<br data-start=\"6089\" data-end=\"6092\" \/><a class=\"decorated-link\" href=\"https:\/\/www.tecmundo.com.br\/seguranca\/412813-falha-grave-no-linux-permite-acesso-root-a-qualquer-usuario.htm\" target=\"_blank\" rel=\"noopener\" data-start=\"6092\" data-end=\"6200\">https:\/\/www.tecmundo.com.br\/seguranca\/412813-falha-grave-no-linux-permite-acesso-root-a-qualquer-usuario.htm<\/a><\/li>\n<li data-section-id=\"1xhay2b\" data-start=\"6242\" data-end=\"6408\"><strong>Wikipedia.<\/strong> <em data-start=\"6256\" data-end=\"6286\">Escalonamento de privil\u00e9gios<\/em>. Dispon\u00edvel em:<br data-start=\"6302\" data-end=\"6305\" \/><a class=\"decorated-link\" href=\"https:\/\/pt.wikipedia.org\/wiki\/Escalonamento_de_privil%C3%A9gios\" target=\"_blank\" rel=\"noopener\" data-start=\"6305\" data-end=\"6368\">https:\/\/pt.wikipedia.org\/wiki\/Escalonamento_de_privil%C3%A9gios<\/a><\/li>\n<\/ul>\n\n\n","protected":false},"excerpt":{"rendered":"<p>Copy Fail: A falha cr\u00edtica no Linux que permite acesso root a Qualquer Usu\u00e1rio A seguran\u00e7a do sistema operacional Linux sempre foi sustentada por um dos pilares mais s\u00f3lidos da computa\u00e7\u00e3o: o controle rigoroso de privil\u00e9gios. No entanto, uma vulnerabilidade recentemente divulgada exp\u00f4s uma falha grave nesse modelo, permitindo que usu\u00e1rios comuns obtenham acesso total [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":24216,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[89,100,21,105],"tags":[],"class_list":["post-24202","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-basico","category-diversos","category-exploits","category-noticias"],"_links":{"self":[{"href":"https:\/\/www.ethicalhacker.com.br\/site\/wp-json\/wp\/v2\/posts\/24202","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.ethicalhacker.com.br\/site\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.ethicalhacker.com.br\/site\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.ethicalhacker.com.br\/site\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ethicalhacker.com.br\/site\/wp-json\/wp\/v2\/comments?post=24202"}],"version-history":[{"count":2,"href":"https:\/\/www.ethicalhacker.com.br\/site\/wp-json\/wp\/v2\/posts\/24202\/revisions"}],"predecessor-version":[{"id":24217,"href":"https:\/\/www.ethicalhacker.com.br\/site\/wp-json\/wp\/v2\/posts\/24202\/revisions\/24217"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.ethicalhacker.com.br\/site\/wp-json\/wp\/v2\/media\/24216"}],"wp:attachment":[{"href":"https:\/\/www.ethicalhacker.com.br\/site\/wp-json\/wp\/v2\/media?parent=24202"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ethicalhacker.com.br\/site\/wp-json\/wp\/v2\/categories?post=24202"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ethicalhacker.com.br\/site\/wp-json\/wp\/v2\/tags?post=24202"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}