{"id":109367,"date":"2023-07-12T21:10:19","date_gmt":"2023-07-12T19:10:19","guid":{"rendered":"https:\/\/prohoster.info\/?p=109367"},"modified":"2023-07-13T09:57:04","modified_gmt":"2023-07-13T07:57:04","slug":"uyazvimosti-v-redis-ghostscript-asterisk-i-parse-server","status":"publish","type":"post","link":"https:\/\/prohoster.info\/pt\/blog\/news\/uyazvimosti-v-redis-ghostscript-asterisk-i-parse-server","title":{"rendered":"Vulnerabilidades no Redis, Ghostscript, Asterisk e Parse Server","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>V\u00e1rias vulnerabilidades perigosas recentemente identificadas:  <\/p>\n<ul>\n<li class=\"l\"> CVE-2022-24834 \u2014 uma vulnerabilidade no SGBD Redis, permitindo um estouro de buffer nas bibliotecas cjson e cmsgpack ao executar um script formatado em Lua. Potencialmente, esta vulnerabilidade pode levar \u00e0 execu\u00e7\u00e3o remota de c\u00f3digo em <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/pt\/server\/dts-newyork\/\"   title=\"servidor\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"2763\">servidor<\/a>. O problema ocorre a partir do Redis 2.6 e foi corrigido nas vers\u00f5es 7.0.12, 6.2.13 e 6.0.20. Como uma solu\u00e7\u00e3o alternativa, \u00e9 poss\u00edvel proibir os usu\u00e1rios do Redis de executar os comandos EVAL e EVALSHA por meio de ACL.\n<li class=\"l\"> CVE-2023-36824 \u2014 vulnerabilidade no banco de dados Redis que resulta em um estouro de buffer ao processar nomes de chaves passados pelos comandos COMMAND GETKEYS ou COMMAND GETKEYSANDFLAGS, bem como listas de chaves nas regras ACL. Esta vulnerabilidade pode levar \u00e0 execu\u00e7\u00e3o remota de c\u00f3digo no servidor. O problema ocorre apenas na ramifica\u00e7\u00e3o 7.0.x e foi corrigido na vers\u00e3o 7.0.12.\n<li class=\"l\"> CVE-2022-23537 \u2014 uma vulnerabilidade na plataforma de comunica\u00e7\u00e3o Asterisk, causando um estouro de buffer durante a an\u00e1lise <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/pt\/server\/dts-prohoster\/\"   title=\"servidor\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"3076\">servidor<\/a> mensagens STUN manipuladas, nas quais um atributo desconhecido \u00e9 especificado. O problema ocorre ao usar os protocolos ICE ou WebRTC no Asterisk. A vulnerabilidade foi corrigida nas vers\u00f5es 16.30.1, 18.18.1, 19.8.1 e 20.3.1.\n<li class=\"l\"> CVE-2023-36664 \u2014 uma vulnerabilidade no Ghostscript, um conjunto de ferramentas para processamento, convers\u00e3o e gera\u00e7\u00e3o de documentos nos formatos PostScript e PDF, que permite a execu\u00e7\u00e3o de c\u00f3digo arbitr\u00e1rio ao abrir documentos formatados especificamente em PostScript. O problema \u00e9 causado pelo tratamento incorreto de nomes de arquivos que come\u00e7am com o s\u00edmbolo \u00ab|\u00bb ou o prefixo %pipe%. A vulnerabilidade foi corrigida na vers\u00e3o 10.01.2 do Ghostscript.\n<p>Em muitos ambientes, o Ghostscript \u00e9 chamado durante a cria\u00e7\u00e3o de miniaturas na \u00e1rea de trabalho ou durante a indexa\u00e7\u00e3o de dados em segundo plano, portanto, para atacar, \u00e0s vezes \u00e9 suficiente apenas carregar um arquivo com um exploit ou visualizar o diret\u00f3rio que o cont\u00e9m no Nautilus. O ataque a sistemas de servidor pode ser realizado por meio de manipuladores de imagem baseados nos pacotes ImageMagick e GraphicsMagick, que chamam o Ghostscript ao passar arquivos JPEG ou PNG nos quais, em vez de uma imagem, h\u00e1 c\u00f3digo PostScript (este arquivo ser\u00e1 processado no Ghostscript, pois o tipo MIME \u00e9 reconhecido pelo conte\u00fado, n\u00e3o confiando apenas na extens\u00e3o).    <\/p>\n<li class=\"l\"> CVE-2023-36475 \u2014 uma vulnerabilidade no Parse Server, um backend para Node.js que opera com o framework web Express, permitindo a execu\u00e7\u00e3o remota de c\u00f3digo no servidor. A vulnerabilidade permite aplicar o m\u00e9todo de contamina\u00e7\u00e3o de prot\u00f3tipo de objetos JavaScript (\u00abprototype pollution\u00bb) para executar seu c\u00f3digo atrav\u00e9s do parser BSON do MongoDB. Esta vulnerabilidade recebeu um n\u00edvel de gravidade de 9.8 em 10. O problema foi corrigido nas atualiza\u00e7\u00f5es do parse-server 5.5.2 e 6.2.1.      <\/ul>\n<p>Fonte: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=59430\">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 \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u043d\u044b\u0445 \u043e\u043f\u0430\u0441\u043d\u044b\u0445 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0435\u0439: CVE-2022-24834 &#8212; \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u0432 \u0421\u0423\u0411\u0414 Redis, \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0430\u044f \u0432\u044b\u0437\u0432\u0430\u0442\u044c \u043f\u0435\u0440\u0435\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u0435 \u0431\u0443\u0444\u0435\u0440\u0430 \u0432 \u0431\u0438\u0431\u043b\u0438\u043e\u0442\u0435\u043a\u0430\u0445 cjson \u0438 cmsgpack \u043f\u0440\u0438 \u0432\u044b\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u0438 \u0441\u043f\u0435\u0446\u0438\u0430\u043b\u044c\u043d\u043e \u043e\u0444\u043e\u0440\u043c\u043b\u0435\u043d\u043d\u043e\u0433\u043e \u0441\u0446\u0435\u043d\u0430\u0440\u0438\u044f \u043d\u0430 \u044f\u0437\u044b\u043a\u0435 Lua. \u041f\u043e\u0442\u0435\u043d\u0446\u0438\u0430\u043b\u044c\u043d\u043e \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u043c\u043e\u0436\u0435\u0442 \u043f\u0440\u0438\u0432\u0435\u0441\u0442\u0438 \u043a \u0443\u0434\u0430\u043b\u0451\u043d\u043d\u043e\u043c\u0443 \u0432\u044b\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u044e \u043a\u043e\u0434\u0430 \u043d\u0430 \u0441\u0435\u0440\u0432\u0435\u0440\u0435. \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 Redis 2.6 \u0438 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0430 \u0432 \u0432\u044b\u043f\u0443\u0441\u043a\u0430\u0445 7.0.12, 6.2.13 \u0438 6.0.20. \u0412 \u043a\u0430\u0447\u0435\u0441\u0442\u0432\u0435 \u043e\u0431\u0445\u043e\u0434\u043d\u043e\u0433\u043e [&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-109367","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.3 - 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