{"id":13254,"date":"2021-12-13T16:23:35","date_gmt":"2021-12-13T15:23:35","guid":{"rendered":"https:\/\/news.save.ch\/?p=13254"},"modified":"2023-07-08T16:01:38","modified_gmt":"2023-07-08T14:01:38","slug":"kritische-sicherheitsluecke-in-java-bibliothek-log4j","status":null,"type":"post","link":"https:\/\/news.save.ch\/fr\/kritische-sicherheitsluecke-in-java-bibliothek-log4j\/","title":{"rendered":"Faille de s\u00e9curit\u00e9 critique dans la biblioth\u00e8que Java \"Log4j"},"content":{"rendered":"<figure id=\"attachment_8489\" aria-describedby=\"caption-attachment-8489\" style=\"width: 1400px\" class=\"wp-caption alignleft\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-8489 size-full\" src=\"https:\/\/news.save.ch\/wp-content\/uploads\/2019\/08\/Depositphotos_cyber-scaled.jpg\" alt=\"Log4j\" width=\"1400\" height=\"1050\" srcset=\"https:\/\/news.save.ch\/wp-content\/uploads\/2019\/08\/Depositphotos_cyber-scaled.jpg 1400w, https:\/\/news.save.ch\/wp-content\/uploads\/2019\/08\/Depositphotos_cyber-375x281.jpg 375w\" sizes=\"auto, (max-width: 1400px) 100vw, 1400px\" \/><figcaption id=\"caption-attachment-8489\" class=\"wp-caption-text\">\u00a9 depositphotos, SWEviL<\/figcaption><\/figure>\n<p>Vendredi dernier, le NCSC a re\u00e7u des messages concernant une faille de s\u00e9curit\u00e9 critique dans la c\u00e9l\u00e8bre biblioth\u00e8que Java \"Log4j\". Cette biblioth\u00e8que est tr\u00e8s r\u00e9pandue et utilis\u00e9e dans de nombreux logiciels commerciaux et open source.<\/p>\n<p>La vuln\u00e9rabilit\u00e9 (CVE-2021-44228 1) est <strong>critique<\/strong>La vuln\u00e9rabilit\u00e9 de cette vuln\u00e9rabilit\u00e9 est tr\u00e8s \u00e9lev\u00e9e, car elle peut \u00eatre exploit\u00e9e \u00e0 distance par un attaquant non authentifi\u00e9 pour ex\u00e9cuter un code malveillant arbitraire. La criticit\u00e9 de la vuln\u00e9rabilit\u00e9 est \u00e9valu\u00e9e \u00e0 10 (sur 10) dans le \"Common Vulnerability Scoring System\" (CVSS), ce qui indique le degr\u00e9 de gravit\u00e9 de la vuln\u00e9rabilit\u00e9.<\/p>\n<h2>Appliquer rapidement les correctifs de s\u00e9curit\u00e9<\/h2>\n<p>Comme de nombreux fournisseurs tiers utilisent \"Log4j\" dans leurs produits, ils travaillent intensivement \u00e0 la publication de correctifs pour leurs produits. Au cours des derni\u00e8res 48 heures, de nombreux fournisseurs ont publi\u00e9 des correctifs de s\u00e9curit\u00e9 pour leurs produits. Le NCSC demande instamment aux organisations et aux infrastructures critiques nationales de v\u00e9rifier si leur environnement logiciel utilise \"Log4j\" et d'appliquer les correctifs correspondants d\u00e8s que possible. Si l'application des correctifs n'est pas possible, il est recommand\u00e9 de prendre toutes les mesures correctives possibles afin d'\u00e9viter des dommages suppl\u00e9mentaires.<\/p>\n<h2>Les particuliers aussi sont concern\u00e9s<\/h2>\n<p>Mais les entreprises ne sont pas les seules \u00e0 \u00eatre menac\u00e9es. La biblioth\u00e8que \"Log4j\" se trouve \u00e9galement dans de nombreux composants de r\u00e9seau et de syst\u00e8me utilis\u00e9s dans le domaine priv\u00e9. C'est pourquoi les particuliers doivent toujours maintenir leurs syst\u00e8mes (ordinateurs, tablettes, smartphones, routeurs WLAN, imprimantes, etc.) \u00e0 jour, ou veiller \u00e0 les mettre r\u00e9guli\u00e8rement \u00e0 jour. Ainsi, les correctifs de s\u00e9curit\u00e9 mis \u00e0 disposition en permanence par les fabricants seront appliqu\u00e9s le plus rapidement possible.<\/p>\n<h2>Alertes aux organisations potentiellement concern\u00e9es<\/h2>\n<p>Le NCSC serait en contact permanent avec des partenaires nationaux et internationaux sur ce sujet. Samedi, le Centre national de cybers\u00e9curit\u00e9 a commenc\u00e9 \u00e0 informer les organisations potentiellement touch\u00e9es en Suisse des instances \"Log4j\" vuln\u00e9rables accessibles via Internet. De telles notifications ont \u00e9galement \u00e9t\u00e9 envoy\u00e9es \u00e0 plusieurs infrastructures critiques nationales.<\/p>\n<p>Bien que la vuln\u00e9rabilit\u00e9 puisse \u00eatre utilis\u00e9e pour lancer des attaques cibl\u00e9es contre des infrastructures critiques nationales, le NCSC n'a pas encore re\u00e7u de signalement dans ce sens. Les tentatives d'exploitation observ\u00e9es jusqu'\u00e0 pr\u00e9sent ont servi \u00e0 diffuser des logiciels malveillants de masse tels que \"Mirai2\", \"Kinsing3\" et \"Tsunami3\" (\u00e9galement connu sous le nom de Muhstik). Ces r\u00e9seaux de zombies sont utilis\u00e9s en premier lieu pour des attaques DDoS (Mirai, Tsunami) ou pour le minage de cryptomonnaies (Kinsing).<\/p>\n<h2>Recommandations et informations utiles<\/h2>\n<p>Pour les administrateurs de syst\u00e8mes, le NCSC a mis \u00e0 disposition sur le blog du GovCERT des recommandations sur la marche \u00e0 suivre ainsi que la liste des indicateurs d'une possible compromission (indicators of compromise IOCs) :<\/p>\n<p><a class=\"icon icon--after icon--external\" title=\"\" href=\"https:\/\/govcert.ch\/blog\/zero-day-exploit-targeting-popular-java-library-log4j\/\" target=\"_blank\" rel=\"noopener\">Blog GovCERT : Zero-Day Exploit Targeting Popular Java Library Log4j (disponible en anglais)<\/a><\/p>\n<p><em>Source : NCSC<\/em><\/p>\n<p>&nbsp;<\/p>","protected":false},"excerpt":{"rendered":"<p>Letzten Freitag erhielt das NCSC Meldungen \u00fcber eine kritische Sicherheitsl\u00fccke in der beliebten Java-Bibliothek \u00abLog4j\u00bb. Die Bibliothek ist weit verbreitet und wird in vielen kommerziellen und Open-Source-Softwareprodukten verwendet. Die Sicherheitsl\u00fccke (CVE-2021-44228 1) ist kritisch, da sie von einem nicht authentifizierten Angreifer aus der Ferne ausgenutzt werden kann, um beliebigen Schadcode auszuf\u00fchren. Die Kritikalit\u00e4t der Sicherheitsl\u00fccke [&hellip;]<\/p>\n","protected":false},"author":9,"featured_media":8489,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"pgc_sgb_lightbox_settings":"","footnotes":""},"categories":[1],"tags":[5019,824,1339,1044,5018,339],"class_list":["post-13254","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-allgemein","tag-botnetze","tag-it-schwachstellen","tag-log4j","tag-ncsc","tag-patches","tag-sicherheitsluecke"],"acf":[],"hkrextid":null,"publication":null,"issue":null,"workflow":null,"startPage":null,"spitzmarke":null,"_posts_by_tag_page_fields":{"widget_title":"","widget_tags":""},"_at_widget":"1","_yoast_wpseo_primary_category":"","_yoast_wpseo_focuskw_text_input":null,"_yoast_wpseo_opengraph-image":null,"_yoast_wpseo_opengraph-description":null,"_yoast_wpseo_opengraph-title":null,"enclosure":null,"_yoast_wpseo_twitter-title":null,"_yoast_wpseo_twitter-description":null,"_yoast_wpseo_twitter-image":null,"_wp_old_slug":null,"_yoast_wpseo_title":null,"_yoast_wpseo_canonical":null,"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Kritische Sicherheitsl\u00fccke in Java-Bibliothek \u00abLog4j\u00bb - Save<\/title>\n<meta name=\"description\" content=\"Ende letzter Woche wurde eine Zero-Day-L\u00fccke in der weit verbreiteten Java-Bibliothek \u00abLog4j\u00bb bekannt. 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Die Sicherheitsl\u00fccke wird als kritisch eingestuft, da die Bibliothek in sehr vielen Java-Anwendungen eingebaut ist.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/news.save.ch\/fr\/kritische-sicherheitsluecke-in-java-bibliothek-log4j\/\" \/>\n<meta property=\"og:site_name\" content=\"Save\" \/>\n<meta property=\"article:published_time\" content=\"2021-12-13T15:23:35+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2023-07-08T14:01:38+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/news.save.ch\/wp-content\/uploads\/2019\/08\/Depositphotos_cyber-scaled.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1400\" \/>\n\t<meta property=\"og:image:height\" content=\"1050\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Simon Gr\u00f6flin\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u00c9crit par\" \/>\n\t<meta name=\"twitter:data1\" content=\"Simon Gr\u00f6flin\" \/>\n\t<meta name=\"twitter:label2\" content=\"Dur\u00e9e de lecture estim\u00e9e\" \/>\n\t<meta name=\"twitter:data2\" content=\"3 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/news.save.ch\\\/kritische-sicherheitsluecke-in-java-bibliothek-log4j\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/news.save.ch\\\/kritische-sicherheitsluecke-in-java-bibliothek-log4j\\\/\"},\"author\":{\"name\":\"Simon Gr\u00f6flin\",\"@id\":\"https:\\\/\\\/news.save.ch\\\/de\\\/#\\\/schema\\\/person\\\/ad4ef21102fd6125312409ac57d5296d\"},\"headline\":\"Kritische Sicherheitsl\u00fccke in Java-Bibliothek \u00abLog4j\u00bb\",\"datePublished\":\"2021-12-13T15:23:35+00:00\",\"dateModified\":\"2023-07-08T14:01:38+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/news.save.ch\\\/kritische-sicherheitsluecke-in-java-bibliothek-log4j\\\/\"},\"wordCount\":429,\"publisher\":{\"@id\":\"https:\\\/\\\/news.save.ch\\\/de\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/news.save.ch\\\/kritische-sicherheitsluecke-in-java-bibliothek-log4j\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/news.save.ch\\\/wp-content\\\/uploads\\\/2019\\\/08\\\/Depositphotos_cyber-scaled.jpg\",\"keywords\":[\"Botnetze\",\"IT-Schwachstellen\",\"Log4j\",\"NCSC\",\"Patches\",\"Sicherheitsl\u00fccke\"],\"articleSection\":[\"ALLGEMEIN\"],\"inLanguage\":\"fr-FR\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/news.save.ch\\\/kritische-sicherheitsluecke-in-java-bibliothek-log4j\\\/\",\"url\":\"https:\\\/\\\/news.save.ch\\\/kritische-sicherheitsluecke-in-java-bibliothek-log4j\\\/\",\"name\":\"Kritische Sicherheitsl\u00fccke in Java-Bibliothek \u00abLog4j\u00bb - Save\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/news.save.ch\\\/de\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/news.save.ch\\\/kritische-sicherheitsluecke-in-java-bibliothek-log4j\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/news.save.ch\\\/kritische-sicherheitsluecke-in-java-bibliothek-log4j\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/news.save.ch\\\/wp-content\\\/uploads\\\/2019\\\/08\\\/Depositphotos_cyber-scaled.jpg\",\"datePublished\":\"2021-12-13T15:23:35+00:00\",\"dateModified\":\"2023-07-08T14:01:38+00:00\",\"description\":\"Ende letzter Woche wurde eine Zero-Day-L\u00fccke in der weit verbreiteten Java-Bibliothek \u00abLog4j\u00bb bekannt. 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