{"id":125333,"date":"2025-05-21T15:05:14","date_gmt":"2025-05-21T13:05:14","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/uyazvimost-v-biblioteke-openpgp-js-pozvolyayushhaya-obojti-verifikacziyu-soobshhenij"},"modified":"2025-05-21T15:05:14","modified_gmt":"2025-05-21T13:05:14","slug":"uyazvimost-v-biblioteke-openpgp-js-pozvolyayushhaya-obojti-verifikacziyu-soobshhenij","status":"publish","type":"post","link":"https:\/\/prohoster.info\/pt\/blog\/news\/uyazvimost-v-biblioteke-openpgp-js-pozvolyayushhaya-obojti-verifikacziyu-soobshhenij","title":{"rendered":"Vulnerabilidade na biblioteca OpenPGP.js, que permite contornar a verifica\u00e7\u00e3o de mensagens.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Uma vulnerabilidade foi identificada na biblioteca OpenPGP.js (CVE-2025-47934), permitindo que um invasor envie uma mensagem modificada que ser\u00e1 percebida pelo destinat\u00e1rio como verificada (as fun\u00e7\u00f5es openpgp.verify e openpgp.decrypt retornar\u00e3o um sinal de verifica\u00e7\u00e3o bem-sucedida da assinatura digital, apesar do conte\u00fado ter sido substitu\u00eddo e diferir dos dados para os quais a assinatura foi criada). A vulnerabilidade foi corrigida nas vers\u00f5es OpenPGP.js 5.11.3 e 6.1.1. O problema ocorre apenas nas ramifica\u00e7\u00f5es OpenPGP.js 5.x e 6.x, n\u00e3o afetando a vers\u00e3o 4.x.    <\/p>\n<p>A biblioteca OpenPGP.js oferece uma implementa\u00e7\u00e3o autossuficiente do protocolo OpenPGP em JavaScript, permitindo que opera\u00e7\u00f5es de criptografia sejam realizadas no navegador e que se trabalhe com assinaturas digitais baseadas em chaves p\u00fablicas. O projeto \u00e9 desenvolvido pelos criadores do Proton Mail e, al\u00e9m de facilitar a criptografia de ponta a ponta das mensagens no Proton Mail, \u00e9 utilizado em projetos como FlowCrypt, Mymail-Crypt, UDC, Encrypt.to, PGP Anywhere e Passbolt.       <\/p>\n<p>A vulnerabilidade afeta os procedimentos de verifica\u00e7\u00e3o incorporados no texto da assinatura (openpgp.verify) e nas mensagens assinadas e criptografadas (openpgp.decrypt). Um atacante pode usar mensagens assinadas existentes para formar novas mensagens, cuja extra\u00e7\u00e3o com a vers\u00e3o vulner\u00e1vel do OpenPGP.js resultar\u00e1 em conte\u00fados substitu\u00eddos, diferentes do conte\u00fado da mensagem original assinada. A vulnerabilidade n\u00e3o afeta assinaturas que s\u00e3o distribu\u00eddas separadamente do texto (o problema ocorre apenas quando a assinatura \u00e9 transmitida junto com o texto como um \u00fanico bloco de dados).      <\/p>\n<p>Para criar uma mensagem forjada, o atacante s\u00f3 precisa de uma mensagem com uma assinatura incorporada ou separada, al\u00e9m do conhecimento dos dados originais que foram assinados nessa mensagem. O atacante pode modificar a mensagem de tal forma que a assinatura continue a ser considerada v\u00e1lida para a vers\u00e3o modificada. De maneira semelhante, mensagens criptografadas com assinatura podem ser alteradas, retornando dados adicionados pelo atacante durante a extra\u00e7\u00e3o.<br \/>\n<br \/>Fonte: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=63278\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0412 \u0431\u0438\u0431\u043b\u0438\u043e\u0442\u0435\u043a\u0435 OpenPGP.js \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u0430 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c (CVE-2025-47934), \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0430\u044f \u0437\u043b\u043e\u0443\u043c\u044b\u0448\u043b\u0435\u043d\u043d\u0438\u043a\u0443 \u043e\u0442\u043f\u0440\u0430\u0432\u0438\u0442\u044c \u043c\u043e\u0434\u0438\u0444\u0438\u0446\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u043e\u0435 \u0441\u043e\u043e\u0431\u0449\u0435\u043d\u0438\u0435, \u043a\u043e\u0442\u043e\u0440\u043e\u0435 \u0431\u0443\u0434\u0435\u0442 \u0432\u043e\u0441\u043f\u0440\u0438\u043d\u044f\u0442\u043e \u043f\u043e\u043b\u0443\u0447\u0430\u0442\u0435\u043b\u0435\u043c \u043a\u0430\u043a \u0432\u0435\u0440\u0438\u0444\u0438\u0446\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u043e\u0435 (\u0444\u0443\u043d\u043a\u0446\u0438\u0438 openpgp.verify \u0438 openpgp.decrypt \u0432\u0435\u0440\u043d\u0443\u0442 \u043f\u0440\u0438\u0437\u043d\u0430\u043a \u0443\u0441\u043f\u0435\u0448\u043d\u043e\u0439 \u043f\u0440\u043e\u0432\u0435\u0440\u043a\u0438 \u0446\u0438\u0444\u0440\u043e\u0432\u043e\u0439 \u043f\u043e\u0434\u043f\u0438\u0441\u0438, \u043d\u0435\u0441\u043c\u043e\u0442\u0440\u044f \u043d\u0430 \u0442\u043e, \u0447\u0442\u043e \u0441\u043e\u0434\u0435\u0440\u0436\u0438\u043c\u043e\u0435 \u0437\u0430\u043c\u0435\u043d\u0435\u043d\u043e \u0438 \u043e\u0442\u043b\u0438\u0447\u0430\u0435\u0442\u0441\u044f \u043e\u0442 \u0434\u0430\u043d\u043d\u044b\u0445, \u0434\u043b\u044f \u043a\u043e\u0442\u043e\u0440\u044b\u0445 \u0441\u043e\u0437\u0434\u0430\u0432\u0430\u043b\u0430\u0441\u044c \u043f\u043e\u0434\u043f\u0438\u0441\u044c). \u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0430 \u0432 \u0432\u044b\u043f\u0443\u0441\u043a\u0430\u0445 OpenPGP.js 5.11.3 \u0438 6.1.1. \u041f\u0440\u043e\u0431\u043b\u0435\u043c\u0430 \u043f\u0440\u043e\u044f\u0432\u043b\u044f\u0435\u0442\u0441\u044f \u0442\u043e\u043b\u044c\u043a\u043e \u0432 \u0432\u0435\u0442\u043a\u0430\u0445 OpenPGP.js [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-125333","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.3 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u0412 \u0431\u0438\u0431\u043b\u0438\u043e\u0442\u0435\u043a\u0435 OpenPGP.js \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u0430 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c (CVE-2025-47934), \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0430\u044f \u0437\u043b\u043e\u0443\u043c\u044b\u0448\u043b\u0435\u043d\u043d\u0438\u043a\u0443 \u043e\u0442\u043f\u0440\u0430\u0432\u0438\u0442\u044c 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permite contornar a verifica\u00e7\u00e3o de mensagens | ProHoster","description":"Uma vulnerabilidade foi identificada na biblioteca OpenPGP.js (CVE-2025-47934), permitindo que um invasor envie uma mensagem modificada que ser\u00e1 percebida pelo destinat\u00e1rio como verificada (as fun\u00e7\u00f5es openpgp.verify e.","canonical_url":"https:\/\/prohoster.info\/pt\/blog\/news\/uyazvimost-v-biblioteke-openpgp-js-pozvolyayushhaya-obojti-verifikacziyu-soobshhenij","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":null,"og:locale":"pt_PT","og:site_name":"ProHoster | \u041a\u0443\u043f\u0438\u0442\u044c \u043d\u0430\u0434\u0435\u0436\u043d\u044b\u0439 \u0445\u043e\u0441\u0442\u0438\u043d\u0433 \u0434\u043b\u044f \u0441\u0430\u0439\u0442\u043e\u0432 \u0441 \u0437\u0430\u0449\u0438\u0442\u043e\u0439 \u043e\u0442 DDoS, VPS VDS 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