{"id":111788,"date":"2023-11-27T15:10:15","date_gmt":"2023-11-27T13:10:15","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/uyazvimosti-v-perl-owncloud-gstreamer-i-zephyr-rtos"},"modified":"2023-11-27T15:10:15","modified_gmt":"2023-11-27T13:10:15","slug":"uyazvimosti-v-perl-owncloud-gstreamer-i-zephyr-rtos","status":"publish","type":"post","link":"https:\/\/prohoster.info\/pt\/blog\/news\/uyazvimosti-v-perl-owncloud-gstreamer-i-zephyr-rtos","title":{"rendered":"Vulnerabilidades em Perl, ownCloud, GStreamer e Zephyr RTOS","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>V\u00e1rias vulnerabilidades recentemente descobertas:  <\/p>\n<ul>\n<li class=\"l\"> Na vers\u00e3o de corre\u00e7\u00e3o do Perl 5.38.1, foi resolvida uma vulnerabilidade (CVE-2023-47038) que pode levar \u00e0 grava\u00e7\u00e3o de um byte fora do buffer alocado ao processar express\u00f5es regulares compiladas com uma propriedade interna Unicode re-definida de forma inadequada, cujo nome come\u00e7a com \u00abutf8::perl\u00bb. O problema ocorre a partir da ramifica\u00e7\u00e3o do Perl 5.30.\n<p>Al\u00e9m disso, na vers\u00e3o 5.38.1 do Perl, foi corrigida uma vulnerabilidade espec\u00edfica do Windows (CVE-2023-47039) que permite a execu\u00e7\u00e3o de c\u00f3digo ao iniciar scripts quando existe a possibilidade de colocar um arquivo cmd.exe no diret\u00f3rio atual (devido \u00e0 falta de limpeza nos caminhos para buscar arquivos execut\u00e1veis, o Perl tenta primeiro executar cmd.exe no diret\u00f3rio atual). Por exemplo, um invasor pode colocar seu cmd.exe no diret\u00f3rio C:\nProgramData e elevar suas permiss\u00f5es se o administrador executar um script Perl a partir desse diret\u00f3rio.    <\/p>\n<li class=\"l\"> Na plataforma de nuvem ownCloud, que se separou do projeto Nextcloud em 2016, foi descoberta uma vulnerabilidade (CVE-2023-49103) que afeta o aplicativo graphapi e permite a exposi\u00e7\u00e3o do conte\u00fado das vari\u00e1veis de ambiente, que podem conter a senha do administrador, a chave de licen\u00e7a e as credenciais para conex\u00e3o ao servidor de correio. <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/pt\/server\/dts-shicago\/\"   title=\"servidor\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"2915\">servidor<\/a>O problema \u00e9 causado pelo uso de uma biblioteca de terceiros no graphapi que, entre outras coisas, fornece um manipulador GetPhpInfo.php, que chama a fun\u00e7\u00e3o phpinfo(), cuja sa\u00edda cont\u00e9m vari\u00e1veis de ambiente.\n<li class=\"l\"> Duas vulnerabilidades foram detectadas no framework multim\u00eddia GStreamer: CVE-2023-44446 \u2014 acesso \u00e0 mem\u00f3ria ap\u00f3s sua libera\u00e7\u00e3o (Use-After-Free) no c\u00f3digo de an\u00e1lise de arquivos MXF; CVE-2023-44429 \u2014 estouro de buffer no c\u00f3digo de an\u00e1lise do formato AV1. O primeiro problema \u00e9 causado pela falta de verifica\u00e7\u00e3o do objeto antes da realiza\u00e7\u00e3o de opera\u00e7\u00f5es com ele, enquanto o segundo resulta da falta de verifica\u00e7\u00e3o do tamanho dos dados antes de copi\u00e1-los para um buffer fixo. As vulnerabilidades podem levar \u00e0 execu\u00e7\u00e3o de c\u00f3digo malicioso ao tentar processar arquivos MXF especialmente formatados e dados multim\u00eddia no formato AV1. Observa-se que os vetores de ataque dependem da implementa\u00e7\u00e3o do aplicativo atacado. As quest\u00f5es foram classificadas com um n\u00edvel de gravidade de 8.8 em 10. As vulnerabilidades foram corrigidas na vers\u00e3o 1.22.7 do GStreamer.\n<li class=\"l\"> No sistema operacional em tempo real Zephyr RTOS, foram identificadas 25 vulnerabilidades, a maioria das quais pode potencialmente levar \u00e0 execu\u00e7\u00e3o de c\u00f3digo malicioso. As vulnerabilidades foram causadas por estouros de buffer no shell WiFi, na pilha Bluetooth, no driver IPM, na pilha USB, no driver IEEE 802.15.4, no subsistema Mgmt, no sistema de arquivos, no driver eS-WiFi e no subsistema CANbus. A maioria das vulnerabilidades foi corrigida na vers\u00e3o Zephyr 3.5.0, mas um problema (CVE-2023-4261) permanece sem solu\u00e7\u00e3o (detalhes sobre esta vulnerabilidade n\u00e3o ser\u00e3o divulgados at\u00e9 que uma corre\u00e7\u00e3o seja disponibilizada).    <\/ul>\n<p>Fonte: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=60185\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041d\u0435\u0441\u043a\u043e\u043b\u044c\u043a\u043e \u043d\u0435\u0434\u0430\u0432\u043d\u043e \u043e\u0431\u043d\u0430\u0440\u0443\u0436\u0435\u043d\u043d\u044b\u0445 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0435\u0439: \u0412 \u043a\u043e\u0440\u0440\u0435\u043a\u0442\u0438\u0440\u0443\u044e\u0449\u0435\u043c \u0432\u044b\u043f\u0443\u0441\u043a\u0435 Perl 5.38.1 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0430 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c (CVE-2023-47038), \u043a\u043e\u0442\u043e\u0440\u0430\u044f \u043c\u043e\u0436\u0435\u0442 \u043f\u0440\u0438\u0432\u0435\u0441\u0442\u0438 \u043a \u0437\u0430\u043f\u0438\u0441\u0438 \u043e\u0434\u043d\u043e\u0433\u043e \u0431\u0430\u0439\u0442\u0430 \u0437\u0430 \u043f\u0440\u0435\u0434\u0435\u043b\u044b \u0432\u044b\u0434\u0435\u043b\u0435\u043d\u043d\u043e\u0433\u043e \u0431\u0443\u0444\u0435\u0440\u0430 \u043f\u0440\u0438 \u043e\u0431\u0440\u0430\u0431\u043e\u0442\u043a\u0435 \u0441\u043a\u043e\u043c\u043f\u0438\u043b\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u044b\u0445 \u0440\u0435\u0433\u0443\u043b\u044f\u0440\u043d\u044b\u0445 \u0432\u044b\u0440\u0430\u0436\u0435\u043d\u0438\u0439 \u0441 \u043d\u0435\u043a\u043e\u0440\u0440\u0435\u043a\u0442\u043d\u043e \u043f\u043e\u0432\u0442\u043e\u0440\u043d\u043e \u043e\u043f\u0440\u0435\u0434\u0435\u043b\u0451\u043d\u043d\u044b\u043c \u0432\u043d\u0443\u0442\u0440\u0435\u043d\u043d\u0438\u043c Unicode-\u0441\u0432\u043e\u0439\u0441\u0442\u0432\u043e\u043c \u0441 \u0438\u043c\u0435\u043d\u0435\u043c, \u043d\u0430\u0447\u0438\u043d\u0430\u044e\u0449\u0438\u043c\u0441\u044f \u043d\u0430 &#171;utf8::perl&#187;. \u041f\u0440\u043e\u0431\u043b\u0435\u043c\u0430 \u043f\u0440\u043e\u044f\u0432\u043b\u044f\u0435\u0442\u0441\u044f \u043d\u0430\u0447\u0438\u043d\u0430\u044f \u0441 \u0432\u0435\u0442\u043a\u0438 Perl 5.30. \u041a\u0440\u043e\u043c\u0435 \u0442\u043e\u0433\u043e, \u0432 Perl 5.38.1 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0430 \u0441\u043f\u0435\u0446\u0438\u0444\u0438\u0447\u043d\u0430\u044f \u0434\u043b\u044f \u043f\u043b\u0430\u0442\u0444\u043e\u0440\u043c\u044b [&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-111788","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=\"\u041d\u0435\u0441\u043a\u043e\u043b\u044c\u043a\u043e \u043d\u0435\u0434\u0430\u0432\u043d\u043e \u043e\u0431\u043d\u0430\u0440\u0443\u0436\u0435\u043d\u043d\u044b\u0445 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0435\u0439: \u0412 \u043a\u043e\u0440\u0440\u0435\u043a\u0442\u0438\u0440\u0443\u044e\u0449\u0435\u043c \u0432\u044b\u043f\u0443\u0441\u043a\u0435 Perl 5.38.1 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0430 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