{"id":25542,"date":"2026-08-11T13:36:47","date_gmt":"2026-08-11T13:36:47","guid":{"rendered":"https:\/\/windowsreport.com\/fr\/cisa-confirme-que-la-faille-sharepoint-est-utilisee-dans-des-attaques-de-ransomware\/"},"modified":"2026-08-11T13:36:47","modified_gmt":"2026-08-11T13:36:47","slug":"cisa-confirme-que-la-faille-sharepoint-est-utilisee-dans-des-attaques-de-ransomware","status":"publish","type":"post","link":"https:\/\/windowsreport.com\/fr\/cisa-confirme-que-la-faille-sharepoint-est-utilisee-dans-des-attaques-de-ransomware\/","title":{"rendered":"CISA confirme que la faille SharePoint est utilis\u00e9e dans des attaques de ransomware"},"content":{"rendered":"\n<p>La CISA a confirm\u00e9 qu\u2019une faille Microsoft SharePoint identifi\u00e9e sous le nom CVE-2026-45659 est d\u00e9sormais utilis\u00e9e dans des attaques par ransomware.<\/p>\n\n\n\n<p>Le mois dernier, la CISA a averti qu\u2019une nouvelle faille SharePoint \u00e9tait exploit\u00e9e. L\u2019agence a maintenant li\u00e9 cette vuln\u00e9rabilit\u00e9 de gravit\u00e9 \u00e9lev\u00e9e \u00e0 des campagnes de ransomware ciblant des serveurs SharePoint vuln\u00e9rables.<\/p>\n\n\n\n<p>La faille, suivie sous la r\u00e9f\u00e9rence <a href=\"https:\/\/www.cisa.gov\/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-45659#:~:text=Known%20To%20Be%20Used%20in%20Ransomware%20Campaigns%3F%20Known\" target=\"_blank\" rel=\"noopener\">CVE-2026-45659<\/a>, est consid\u00e9r\u00e9e comme activement exploit\u00e9e depuis d\u00e9but juillet. Elle figurait \u00e9galement parmi les trois nouvelles failles SharePoint pr\u00e9c\u00e9demment signal\u00e9es par la CISA.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-cve-2026-45659-can-allow-remote-code-execution\">CVE-2026-45659 peut permettre l\u2019ex\u00e9cution de code \u00e0 distance<\/h2>\n\n\n\n<p>Le CVE-2026-45659 affecte les versions non corrig\u00e9es de SharePoint Enterprise Server 2016, SharePoint Server 2019 et SharePoint Server Subscription Edition.<\/p>\n\n\n\n<p>La vuln\u00e9rabilit\u00e9 provient d\u2019une d\u00e9s\u00e9rialisation non s\u00e9curis\u00e9e et peut permettre \u00e0 des attaquants disposant de faibles privil\u00e8ges d\u2019ex\u00e9cuter du code arbitraire sur les serveurs concern\u00e9s.<\/p>\n\n\n\n<p>Microsoft a pr\u00e9c\u00e9demment qualifi\u00e9 l\u2019exploitation de cette faille de relativement peu complexe et a indiqu\u00e9 que les attaquants n\u2019avaient besoin que de peu de connaissances pr\u00e9alables du syst\u00e8me cibl\u00e9.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-cisa-ordered-federal-agencies-to-patch-the-flaw\">La CISA a ordonn\u00e9 aux agences f\u00e9d\u00e9rales de corriger la faille<\/h3>\n\n\n\n<p>Le 1er juillet, la CISA a ajout\u00e9 le CVE-2026-45659 \u00e0 son catalogue des vuln\u00e9rabilit\u00e9s exploit\u00e9es connues et a accord\u00e9 trois jours aux agences de la branche ex\u00e9cutive civile f\u00e9d\u00e9rale pour prot\u00e9ger les serveurs SharePoint concern\u00e9s.<\/p>\n\n\n\n<p>L\u2019agence a pr\u00e9venu que les vuln\u00e9rabilit\u00e9s de ce type attirent fr\u00e9quemment des acteurs malveillants et pr\u00e9sentent des risques importants pour les organismes f\u00e9d\u00e9raux.<\/p>\n\n\n\n<p>Par la suite, la CISA a conseill\u00e9 aux organisations d\u2019installer les derni\u00e8res mises \u00e0 jour de s\u00e9curit\u00e9 de Microsoft, de confirmer que les correctifs ont bien \u00e9t\u00e9 appliqu\u00e9s, de surveiller les serveurs SharePoint pour d\u00e9tecter tout signe de compromission et de r\u00e9duire les d\u00e9lais de mise en place des correctifs.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-hundreds-of-sharepoint-servers-reportedly-remain-vulnerable\">Des centaines de serveurs SharePoint resteraient vuln\u00e9rables<\/h3>\n\n\n\n<p>Selon les informations disponibles, plus de 200 syst\u00e8mes SharePoint ne sont toujours pas corrig\u00e9s contre le CVE-2026-45659, ce qui les expose \u00e0 d\u2019\u00e9ventuelles attaques.<\/p>\n\n\n\n<p>Microsoft n\u2019a pas encore mis \u00e0 jour son propre avis CVE pour indiquer officiellement que la vuln\u00e9rabilit\u00e9 est exploit\u00e9e de mani\u00e8re active.<\/p>\n\n\n\n<p>Par ailleurs, dans d\u2019autres actualit\u00e9s de s\u00e9curit\u00e9, <a href=\"https:\/\/windowsreport.com\/fr\/storm-1175-revient-avec-le-nouveau-rancongiciel-stormencryptor-et-de-nouvelles-tactiques-dattaque-previent-microsoft\/\" target=\"_blank\" rel=\"noopener\">Microsoft met en garde contre le nouveau ran\u00e7ongiciel StormEncryptor<\/a>.<\/p>\n\n\n\n<p>Via <a href=\"https:\/\/www.bleepingcomputer.com\/news\/security\/cisa-microsoft-sharepoint-flaw-now-exploited-in-ransomware-attacks\/\" target=\"_blank\" rel=\"noopener\">BleepingComputer<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>La CISA a confirm\u00e9 qu\u2019une faille Microsoft SharePoint identifi\u00e9e sous le nom CVE-2026-45659 est d\u00e9sormais utilis\u00e9e dans des attaques par ransomware. Le mois dernier, la CISA a averti qu\u2019une nouvelle faille SharePoint \u00e9tait exploit\u00e9e. L\u2019agence a maintenant li\u00e9 cette vuln\u00e9rabilit\u00e9 de gravit\u00e9 \u00e9lev\u00e9e \u00e0 des campagnes de ransomware ciblant des serveurs SharePoint vuln\u00e9rables. La faille, [&hellip;]<\/p>\n","protected":false},"author":49,"featured_media":25543,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_enabled_clarity":"","footnotes":""},"categories":[1019],"tags":[],"work":[],"class_list":["post-25542","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tutoriels"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v28.2 (Yoast SEO v28.2) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>CISA confirme que la faille SharePoint est utilis\u00e9e dans des attaques de ransomware<\/title>\n<meta name=\"description\" content=\"La CISA confirme que la faille Microsoft SharePoint CVE-2026-45659 est d\u00e9sormais exploit\u00e9e dans des attaques par ransomware contre des serveurs vuln\u00e9rables\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, 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