{"id":141,"date":"2023-02-03T13:20:49","date_gmt":"2023-02-03T16:20:49","guid":{"rendered":"http:\/\/techsecurity.com.br\/?p=141"},"modified":"2023-02-03T20:47:36","modified_gmt":"2023-02-03T23:47:36","slug":"mais-de-100-modelos-de-impressoras-lexmark-estao-vulneraveis","status":"publish","type":"post","link":"https:\/\/techsecurity.com.br\/2023\/02\/mais-de-100-modelos-de-impressoras-lexmark-estao-vulneraveis\/","title":{"rendered":"Mais de 100 modelos de impressoras Lexmark est\u00e3o vulner\u00e1veis"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">A Lexmark lan\u00e7ou uma atualiza\u00e7\u00e3o de firmware de seguran\u00e7a para resolver uma vulnerabilidade de execu\u00e7\u00e3o remota de c\u00f3digo, rastreada como CVE-2023-23560, que afeta mais de 100 modelos de impressoras.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A falha \u00e9 uma falsifica\u00e7\u00e3o de solicita\u00e7\u00e3o do lado do servidor (SSRF) no recurso Web Services das impressoras Lexmark, recebeu uma pontua\u00e7\u00e3o CVSS 9.0.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u201cUma vulnerabilidade de falsifica\u00e7\u00e3o de solicita\u00e7\u00e3o do lado do servidor (SSRF) foi identificada no recurso Web Services dos dispositivos Lexmark mais recentes. Essa vulnerabilidade pode ser aproveitada por um invasor para obter a execu\u00e7\u00e3o de c\u00f3digo arbitr\u00e1rio no dispositivo.\u201d disse a empresa em comunicado.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">O comprometimento de uma impressora vulner\u00e1vel pode ser explorado por agentes de amea\u00e7as para obter uma posi\u00e7\u00e3o inicial na rede de destino. Depois de comprometer uma impressora, um invasor pode acessar o spooler de impress\u00e3o expondo documentos confidenciais ou obter as credenciais da rede \u00e0 qual o dispositivo est\u00e1 conectado.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A lista de dispositivos afetados \u00e9 impressionante, segundo o comunicado, mais de 100 modelos de impressoras s\u00e3o afetados por esta vulnerabilidade. A lista completa pode ser conferida no link <a href=\"https:\/\/publications.lexmark.com\/publications\/security-alerts\/CVE-2023-23560.pdf\" target=\"_blank\" rel=\"noreferrer noopener\">https:\/\/publications.lexmark.com\/publications\/security-alerts\/CVE-2023-23560.pdf<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Recomenda-se que os clientes baixem a vers\u00e3o mais recente do firmware para seu modelo de impressora visitando o portal do centro de suporte da Lexmark .<\/p>\n\n\n\n<p class=\"has-large-font-size wp-block-paragraph\">Para atualizar o firmware da impressora siga os seguintes passos:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Verificar se h\u00e1 atualiza\u00e7\u00f5es dispon\u00edveis para o modelo da sua impressora. Isso pode ser feito no site da Lexmark ou usando o software de gerenciamento da impressora.<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Baixar o arquivo de atualiza\u00e7\u00e3o de firmware.<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Conectar a impressora ao computador.<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Instalar o software de atualiza\u00e7\u00e3o, se necess\u00e1rio.<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Seguir as instru\u00e7\u00f5es fornecidas pelo software de atualiza\u00e7\u00e3o para instalar o novo firmware na impressora.<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Reiniciar a impressora.<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Verificar se o firmware foi atualizado corretamente, checando a vers\u00e3o atual do firmware na tela ou no software de gerenciamento da impressora.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Obs.: \u00c9 importante seguir as instru\u00e7\u00f5es exatas fornecidas pela Lexmark para evitar problemas com a impressora.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Mais de 100 modelos de impressoras Lexmark est\u00e3o vulner\u00e1veis a ataques hacker<\/p>\n","protected":false},"author":2,"featured_media":142,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[19],"tags":[37,38],"class_list":["post-141","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-informativo","tag-lexmark","tag-rce"],"yoast_head":"<title>Mais de 100 modelos de impressoras Lexmark est\u00e3o vulner\u00e1veis - 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